Datasheet TDA9144-N2 Datasheet (Philips)

DATA SH EET

Preliminary specification
File under Integrated Circuits, IC02

1996 Jan 17

INTEGRATED CIRCUITS

TDA9144

I

2

C-bus controlled, alignment-free
PAL/NTSC/SECAM decoder/sync
processor with PALplus helper
demodulator

1996 Jan 17 2

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

FEATURES

• Multi-standard colour decoder and sync processor for
PAL, NTSC and SECAM

• PALplus helper demodulator

• PALplus helper blanking and EDTV-2 blanking

• I2C-bus controlled

• I2C-bus addresses hardware selectable

• Pin compatible with TDA9141

• Alignment free

• Few external components

• Designed for use with baseband delay lines

• Integrated video filters

• Adjustable luminance delay

• Noise detector with I

2

C-bus read-out

• Norm/no_norm detector with I2C-bus read-out

• CVBS or Y/C input, with automatic detection possibility

• CVBS output provided I2C-bus address 8A is used

• Vertical divider system

• Two-level sandcastle signal

• VA synchronization pulse (3-state)

• HA synchronization pulse or clamping pulse CLP

input/output

• Line-locked clock output (6.75 MHz or 6.875 MHz) or
stand-alone I2C-bus output port

• Stand-alone I2C-bus input/output port

• Colour matrix and fast YUV switch

• Comb filter enable input/output with subcarrier

frequency

• Internal bypass mode of external delay line for PALplus
and NTSC applications

• Low power standby mode with 3-state YUV outputs

• Fast blanking detector with I2C-bus read-out

• Blanked or unblanked sync on Y

out

by I2C-bus bit BSY

• internal MACROVISION gating for the horizontal PLL
enabled by bus bit EMG.

GENERAL DESCRIPTION

The TDA9144 is an I

2

C-bus controlled, alignment-free
PAL/NTSC/SECAM decoder/sync processor with helper
demodulator for PALplus signals and blanking facilities for
PALplus and EDTV-2 signals. The TDA9144 has been
designed for use with baseband chrominance delay lines,
and has a combined subcarrier frequency/comb filter
enable signal for communication with a PAL/NTSC comb
filter.

The IC can process both CVBS input signals and Y/C input
signals. The input signal is available on an output pin, in
the event of a Y/C signal, it is added into a CVBS signal.

The sync processor provides a two-level sandcastle, a
horizontal pulse (CLP or HA pulse, bus selectable) and a
vertical (VA) pulse. When the HA pulse is selected, a
line-locked clock (LLC) signal is available at the output port
pin (6.75 MHz or 6.875 MHz).

A fast switch can select either the internal Y signal with the
UV input signals, or YUV signals made of the RGB input
signals. The RGB input signals can be clamped with either
the internal or an external clamping signal.

Two pins with an input/output port and an output port of the
I

2

C-bus are available.

The I2C-bus address of the TDA9144 is hardware
programmable.

The TDA9144 is pin compatible with the TDA9141
(multistandard decoder/sync processor).

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA9144 SDIP32 plastic shrink dual in-line package; 32 leads (400 mil) SOT232-1

1996 Jan 17 3

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

positive supply voltage 7.2 8.0 8.8 V

I

CC

supply current 50 60 70 mA

V

CVBS(p-p)

CVBS input voltage (peak-to-peak value) top sync-white − 1.0 1.43 V

V

Y(p-p)

luminance input voltage
(peak-to-peak value)

top sync-white − 1.0 1.43 V

V

C(p-p)

chrominance burst input voltage
(peak-to-peak value)

− 0.3 0.6 V

V

Y(out)

luminance black-white output voltage − 1.0 − V

V

Y(out)

luminance PALplus output voltage black-white − 0.8 − V

V

Y(out)(p-p)

maximum luminance helper signal output
voltage (peak-to-peak value)

− 686 − mV

V

U(out)(p-p)

U output voltage (peak-to-peak value) standard colour bar − 1.33 − V

V

V(out)(p-p)

V output voltage (peak-to-peak value) standard colour bar − 1.05 − V

V

SC(bl)

sandcastle blanking voltage level 2.2 2.5 2.8 V

V

SC(clamp)

sandcastle clamping voltage level 4.2 4.5 4.8 V

V

VA

VA output voltage 4.0 5.0 5.5 V

V

HA

HA output voltage 4.0 5.0 5.5 V

V

LLC(p-p)

LLC output voltage amplitude
(peak-to-peak value)

250 500 − mV

V

R,G,B(p-p)

RGB input voltage (peak-to-peak value) 0 to 100% saturation − 0.7 1.0 V

V

clamp(I/O)

clamping pulse input/output voltage − 5.0 − V

V

sub(p-p)

subcarrier output voltage amplitude
(peak-to-peak value)

150 200 300 mV

V

OPORT

port output voltage 4.0 5.0 5.5 V

1996 Jan 17 4

Philips Semiconductors Preliminary specification

I

2

C-bus controlled, alignment-free PAL/NTSC/SECAM

decoder/sync processor with PALplus helper demodulator

TDA9144

BLOCK DIAGRAM

handbook, full pagewidth

MBG897

I2C-BUS

VERTICAL

SYNC

SEPARATOR

SYNC

SEPARATOR

MATRIX

SWITCH

SWITCH

helper

DELAY

Y CLAMP

ACC

DGND

DEC

C

Y/CVBS

O PORT/LLC

I/O PORT

ADDR (CVBS)

AGND CPLL XTAL XTAL2

SDA SCL

HPLL

SC CLP/HA R G B F

V

CC

FILT

ref

Fscomb

VA

U

out

U

in

V

in

SEC

ref

−(R−Y)

−(B−Y)

V

outYout

LCA

BIAS

TDA9144

INA-INB

HORIZONTAL

PLL

SECAM

CLOCHE

CHROMA

BANDPASS

TRAP

ECL

CLP

VA
HA

ECL

DELAY

HUE

FILTER

TUNING

SECAM
DEMOD

FSC

BUFFER

IDENT

SYSTEM

PAL/NTSC

DEMOD

CHROMA

PLL

CHROMA

SWITCH

TIMING

GENERATOR

TB

BPS

ECMB

YD3−YD0YH1−YH0

18 14 13 12

3

4

2

6

22

15

16

26

25

8

92728 29 30 31 23

1

32

2

57 24

11

17

21 20 19

10

2

Fig.1 Block diagram.

1996 Jan 17 5

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

PINNING

SYMBOL PIN DESCRIPTION

−(R−Y) 1 output signal for −(R−Y)

−(B−Y) 2 output signal for −(B−Y)

U

in

3 chrominance U input

V

in

4 chrominance V input
SCL 5 serial clock input
SDA 6 serial data input/output
V

CC

7 positive supply voltage
DEC 8 digital supply decoupling
DGND 9 digital ground
SC 10 sandcastle output
VA 11 vertical acquisition

synchronization pulse

Y

out

12 luminance output

V

out

13 chrominance V output

U

out

14 chrominance U output
I/O PORT 15 input/output port
O PORT/LLC 16 output port/line-locked clock

output

CLP/HA 17 clamping pulse/HA

synchronization pulse

input/output
F 18 fast switch select input
B 19 BLUE input
G 20 GREEN input
R 21 RED input
ADDR (CVBS) 22 I

2

C-bus address input (CVBS

output)
Fscomb 23 comb filter status input/output
HPLL 24 horizontal PLL filter
C 25 chrominance input
Y/CVBS 26 luminance/CVBS input
AGND 27 analog ground
FILT

ref

28 filter reference decoupling
CPLL 29 colour PLL filter
XTAL 30 reference crystal input
XTAL2 31 second crystal input
SEC

ref

32 SECAM reference decoupling

Fig.2 Pin configuration.

handbook, halfpage

TDA9144

MBG896

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

−(B−Y)

−(R−Y)

U

in

V

in

SCL
SDA
V

CC

DEC

DGND

SC
VA

Y

out

V

out

U

out

SEC

ref

XTAL2
XTAL
CPLL

AGND
Y/CVBS

FILT

ref

C
HPLL
Fscomb
ADDR (CVBS)
R
G
B

I/O PORT

O PORT/LLC

F
CLP/HA

1996 Jan 17 6

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

FUNCTIONAL DESCRIPTION

The TDA9144 is an I2C-bus controlled, alignment-free
PAL/NTSC/SECAM colour decoder/sync processor which
has been designed for use with baseband chrominance
delay lines. For PALplus signals, helper demodulation and
blanking facilities are included; for EDTV-2 (60 Hz) signals
only blanking facilities are included.

In the standard operating mode the I2C-bus address is 8A.
If the address input is connected to the positive supply rail
the address will change to 8E.

Input switch

The TDA9144 has a two pin input for CVBS or Y/C signals
which can be selected via the I

2

C-bus. The input selector
also has a position in which it automatically detects
whether a CVBS or Y/C signal is on the input. In this input
selector position, standard identification first takes place
on an added Y/CVBS and C input signal. After that, both
chrominance signal input amplitudes are checked once
and the input with the strongest chrominance burst signal
is selected. The input switch status is read out by the
I2C-bus via output bit YC. The auto input detect mode
indicates YC = 1 for a VBS input signal (no chrominance
component).

CVBS output

In the standard operating mode with I

2

C-bus address 8A,
a CVBS output signal is available on the address pin,
which represents either the CVBS input signal or the Y/C
input signal, added into a CVBS signal.

RGB colour matrix

The TDA9144 has a colour matrix to convert RGB input
signals into YUV signals. A fast switch, controlled by the
signal on pin F and enabled by I

2

C-bus via EFS (enable
fast switch), can select between these YUV signals and
the YUV signals of the decoder. Mode FRGB = 1 (forced
RGB) overrules EFS and forces the matrixed RGB inputs
to the YUV outputs.

CAUTION

The voltage on the chrominance pin must never exceed

5.5 V. If it does, the IC enters a test mode.

CAUTION

The voltage on the Uin pin must never exceed 5.5 V.
If it does, the IC enters a test mode.

The Y signal is internally connected to the switch. The

−(R−Y) and−(B−Y) output signals of the decoder first have
to be delayed in external baseband chrominance delay
lines. The outputs of the delay lines must be connected to
the UV input pins. If the RGB signals are not synchronous
with the selected decoder input signal, clamping of the
RGB input signals is possible by I2C-bus selection of ECL
(external RGB clamp mode) and by feeding an external
clamping signal to the CLP pin. Also in external RGB
clamp mode the VA output will be in a high impedance
OFF-state. The YUV outputs can be put in 3-state mode by
bus bit LPS (low power standby mode).

Standard identification

The standards which the TDA9144 can decode depend
upon the choice of external crystals. If a 4.4 MHz and a

3.6 MHz crystal are used then SECAM, PAL 4.4/3.6 and
NTSC 4.4/3.6 can be decoded. If two 3.6 MHz crystals are
used then only PAL 3.6 and NTSC 3.6 can be decoded.

Which 3.6 MHz standards can be decoded depends upon
the exact frequencies of the 3.6 MHz crystals. In an
application where not all standards are required only one
crystal is sufficient; in this instance the crystal must be
connected to the reference crystal input (pin 30). If a

4.4 MHz crystal is used it must always be connected to the
reference crystal input. Both crystals are used to provide a
reference for the filters and the horizontal PLL, however,
only the reference crystal is used to provide a reference for
the SECAM demodulator. To enable the calibrating circuits
to be adjusted exactly, two bits from I

2

C-bus subaddress
00 are used to indicate which crystals are connected to the
IC.

The standard identification circuit is a digital circuit without
external components. The search loop is illustrated
in Fig.3. The decoder (via the I2C-bus) can be forced to
decode either SECAM or PAL/NTSC (but not PAL or
NTSC). Crystal selection can also be forced. Information
concerning standard and which crystal is selected and
whether the colour killer is ON or OFF is provided by the
read out.

Using the forced-mode does not affect the search loop, it
does however, prevent the decoder from reaching or
staying in an unwanted state. The identification circuit
skips impossible standards (e.g. SECAM when no

4.4 MHz crystal is fitted) and illegal standards (e.g. in
forced mode). To reduce the risk of wrong identification
PAL has priority over SECAM. Only line identification is
used for SECAM. For a vertical frequency of 60 Hz
SECAM can be blocked to prevent wrong identification by
means of bus bit SAF.

1996 Jan 17 7

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Fig.3 Search loop of the identification circuit.

handbook, full pagewidth

PAL

KILLED

PAL

KILLED

PAL

KILLED

NTSC

KILLED

NTSC

KILLED

SECAM

KILLED

Reference crystal Second crystal

MGE040

PAL

NTSC

NTSCPAL

SECAM

c

c

c

c

c

c

c

c

c

c

c

Integrated filters

All chrominance bandpass and notch filters, including the
luminance delay line, are an integral part of the IC. The
filters are gyrator-capacitor type filters. The resonant
frequency of the filters is controlled by a circuit that uses
the active crystal to tune the SECAM Cloche filter during
the vertical flyback time. The remaining filters and the
luminance delay line are matched to this filter. The filters
can be switched to either 4.43 MHz, 4.29 MHz or

3.58 MHz. The switching is controlled by the standard
identification circuit. The luminance notch used for
SECAM has a lower Q-factor than the notch used for
PAL/NTSC. The notches are provided with a little preshoot
to obtain a symmetrical step response. In Y/C mode the
chrominance notch filters are bypassed, to preserve full
signal bandwidth. For a CVBS signal the chrominance
notch filters can be bypassed by bus selection of bit TB
(trap bypass).

The luminance to helper delay difference can be adjusted
by I

2

C-bus, to achieve a correct fitting for the delay in the
PALplus helper demodulation signal path and the
luminance path (not for helper only with trap). The delay of
the colour difference signals −(R−Y) and −(B−Y) in the
chrominance signal path and the external chrominance
delay lines when used, can be fitted to the luminance
signal delay control via I2C-bus in 40 ns steps.

The typical luminance delay can be calculated:
delay ≈ 90 + SAK⋅SBK {170 + 40(FRQ⋅TB)} + 160(YD3) +

160(YD2) + 80(YD1) + 40(YD0) [ns].

1996 Jan 17 8

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Colour decoder

The PAL/NTSC demodulator employs an oscillator that
can operate with either crystal (3.6 MHz or 4.4 MHz). If the
I2C-bus indicates that only one crystal is connected it will
always connect to the crystal on the reference crystal input
(pin 30). The Hue signal which is adjustable by I2C-bus, is
gated during the burst for NTSC signals.

The SECAM demodulator is an auto-calibrating PLL
demodulator which has two references. The reference
crystal, to force the PLL to the desired free-running
frequency and the bandgap reference, to obtain the
correct absolute value of the output signal. The VCO of the
PLL is calibrated during each vertical blanking period,
when the IC is in search mode or SECAM mode.

If the reference crystal is not 4.4 MHz the decoder will not
produce the correct SECAM signals. Especially for
PALplus and NTSC applications, an internal bypass mode
of the external baseband delay line (for instance
TDA4665) is added, controlled by bus bit BPS (bypass
mode) and has a gain of 2. The bypass mode is not
available for SECAM.

Comb filter interfacing

The frequency of the active crystal is fed to the Fscomb
output, which can be connected to an external comb filter
IC (e.g. SAA4961). When bus bit ECMB is LOW, the
subcarrier frequency is suppressed and its DC value is
LOW. With ECMB HIGH, the DC value is HIGH with the
subcarrier frequency present, and I

2

C-bus output bit YC
and the input switch are always forced in the Y/C mode,
unless an external current sink (e.g. from the comb filter)
prevents this, as pin Fscomb also acts as input pin. In this
event the subcarrier frequency is still present on the same
DC HIGH level

PALplus helper demodulation
PALplus has been introduced to come to an evolutionary

introduction of wide screen transmissions with backward

compatibility with PAL 4 : 3 TV sets. A PALplus signal has
the format of a standard analog PAL composite signal
containing 430 PAL picture lines in letter box format (lines
60 to 274 and 372 to 586), together with helper
information contained in the black bands above and below
the visible letter box area (lines 24 to 59, 336 to 371,
275 to 310, and 587 to 622).

A viewer with a 4 : 3 TV set will see a letter box picture:
black bars of

1

⁄8 picture height at the top as well as at the

bottom with a 16 : 9 picture in between (see left-hand side
picture of Fig.4).

A wide screen viewer without PALplus decoder will only
see the centre picture of Fig.4, or the right hand side
picture when a zoom option is available, however with only
430 lines of vertical resolution.

When a wide screen viewer has a PALplus decoder, it
expands the letter box format to a full-size wide screen
picture with a vertical resolution of 574 lines. The decoder
uses the helper lines information, hidden within the black
bars. See the right-hand side picture of Fig.4.

Furthermore a PALplus signal will deliver full luminance
bandwidth by an Y/C separation technique called ‘Motion
Adaptive Colour Plus’ (MACP). Using this technique, the
signal becomes free from cross colour and cross
luminance. This algorithm requires MACP pre-processing
in the PALplus encoder at the studio output.

The PALplus parts which the TDA9144 processes are in
short:

• Helper demodulation and multiplexing helper with letter
box luminance signal

• Chrominance trap bypassing if necessary

• Creation of reference line 22 (see Fig.5)

• Creation of black set-up and helper set-up

• Correct blanking and timing reference for the necessary

post processing ICs.

Fig.4 Possible PALplus picture displays.

handbook, full pagewidth

430

picture

lines

574

picture

lines

helper lines

helper lines

MBG903

1996 Jan 17 9

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

In case of a PALplus input signal, the standard
identification system of the TDA9144 only determines PAL
and needs additional I2C-bus information for PALplus, via
bus bits MACP, HD, HOB and HBC.

Bus bit MACP determines whether the 4.43 chrominance
signal component of the CVBS input signal should be
suppressed by a 4.43 trap or not. For MACP = 1 the
chrominance suppression takes place outside the
TDA9144.

The HD bit (helper demodulation) enables PALplus helper
demodulation on the U phase (i.e. the B−Y demodulation
axis). As there is only a 4.43 notch for the demodulated
helper, an external notch filter is necessary to suppress the

8.86 MHz demodulation product and resolve the
baseband helper signal. The demodulated helper
luminance signal is always led to a notch filter (4.43 MHz,
no bypass here), then multiplexed with the regular 430
letter box lines luminance signal and led to the output Y

out

.
The black level of the luminance signal is internally
clamped with a large time constant to the black level
generated by the helper demodulator.

Also bus bits HD and MACP determine the presence of a
black set-up voltage (with luminance scaling of a factor

0.8) and a helper set-up voltage for the demodulated
helper signal on the output signal Y

out

. These set-up
voltages are necessary for PALplus signal post processing
outside the TDA9144. The set-up voltages are also
multiplexed into a reference line 22, combined with the
demodulated helper reference of line 23 and luminance
reference of line 623, both present in every PALplus signal
for correct PALplus reference post processing (see Fig.5).

Additional helper blanking bits (HOB, HBC) determine
whether the helper signal has to be blanked or blanked
conditionally depending on the signal-to-noise ratio bit
SNR. Helper blanking can only take place on a norm sync
signal, indicated by output bit NRM = 1. Table 1 is valid in
50 Hz or 60 Hz mode.

Table 1 Helper blanking modes

For EDTV-2 (system M, 60 Hz, 525 lines) outside the letter
box area, blanking is possible and takes place on lines

HOB HBC SNR

HELPER

BLANKING

0 X X OFF
10XON
110OFF
111ON

230 to 312 and 493 to 49

(1)

when helper blanking is

activated.
The TDA9144 can handle PALplus signals in either CVBS

or Y/C format. In case of a Y/C signal, the modulated
helper must be available on the chrominance input pin (C).
The use of the 4.43 trap will not be necessary, as the
chrominance and luminance components of a Y/C signal
are already separated, so the 4.43 trap for the letter box
luminance is bypassed (not for the demodulated helper
signal). During helper demodulation, the internal chroma
bandpass filter is bypassed.

For PALplus the I2C-bus Hue bits HU0 to HU5 are used to
adjust for a correct helper demodulator phase. This has no
effect on the R−Y and B−Y demodulator phase for PAL.

Table 2 gives an overview of the possible PALplus modes
and their effects in the TDA9144. The table is only valid for
a 50 Hz system. In 60 Hz system mode the columns for
line 22, 23b and 623a do not exist, and using the MACP
and HD bits has no effect on the 60 Hz signal.

• Mode 1 → normal PAL

• Mode 2 → PAL with MACP processing

• Mode 3 → full PALplus

• Mode 4 → PALplus without MACP processing (helper

only)

• Mode 5 → near_norm or no_norm sync condition

• Mode 6 → norm sync condition with fast blanking active

• Mode 7 → system ident not identified as PAL.

The indications a and b for the lines 22, 23 and 623
respectively stand for the first half and the second half of a
line.

The signalling bits in line 23 (see Fig.5) are processed in
the same manner as letter box luminance lines in the
TDA9144. Signalling bit decoding and PALplus
identification is done externally with I2C-bus as
communication link to the TDA9144 for bus bits MACP,
HD, HOB, and HBC.

(1) For system M the line numbers start with the first equalizing

pulse in field 1, but the internal line counter starts counting at
the first vertical sync pulse in field 1. This line number
notation is used here and in Fig.9.

1996 Jan 17 10

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

handbook, full pagewidth

1.00

0.30

0

20 µs

32 µs

line 623

(V)

PALplus CVBS in

10 µs

10.5 µs

white level reference

1.00

0.30

0

(V)

EBU colour bar

EBU colour bar

with black set-up

1.00

0.60

0.20
0

(2)

(V)

1.00

0.30

0.45

0.80

0.15
0

(V)

line 23

input

signals

output

signals

41 µs

51 µs

0.4 µs

10.83 µs

PALplus signalling bits

black

level

reference

helper reference

burst −U phase

1.00

0.60

0.77

0.20
0

(V)

line 23

helper
set-up

B

PALplus signalling bits

1.00

0.20

0.60

0

(V)

52 µs

0.15 µs

0.4 µs

686 mV

0.65 µs

52 µs

22 µs30.8 µs

0.15 µs

0.65 µs

baseband helper line with

black and helper set-up

1.00

0.30

0.45

0.15
0

(V)

52 µs

10.5 µs

max. modulated helper line

demodulated helper

area limits

800

mV

delay CLP to set up

(4)

demodulated

helper reference

1.00

0.60

0.20
0

(V)

line 22 reference line

helper set-up

(mid-grey)

black set-up

212 LLC pulses

151 LLC pulses

A

11.2 µs

1.00

0.60

0.20
0

(V)

line 623

black set-up

black

(clamp level)

black level offset

Y

out

(pin 12)

Y black

white level reference

(1)

mid-grey offset = A − B

(3)

MBG904

Fig.5 PALplus CVBS input and Y output signals.

Figures drawn when using subaddress 8A and an Y

delay

of ∼440 ns.
LLC frequency equals 6.875 MHz; 440 LLC pulses per horizontal line.
Demodulated helper shown when using an external 8.8 notch filter.

(1) See Y output parameter Vos in Section “Characteristics”
(2) See demodulated helper parameter td in Section “Characteristics”
(3) See demodulated helper parameter Vos in Section “Characteristics”
(4) See CLP output/HA output parameter td in Section “Characteristics”

1996 Jan 17 11

Philips Semiconductors Preliminary specification

I

2

C-bus controlled, alignment-free PAL/NTSC/SECAM

decoder/sync processor with PALplus helper demodulator

TDA9144

Table 2 PALplus modes for 50 Hz

Notes

1. When activated, the black set-up is added to the full frame.

2. When activated, the helper set-up is added to line 22b, 23b, 24 to 59, 275 to 310, 336 to 371, 587 to 622.

3. The 4.43 MHz trap is active in CVBS input mode and TB = 0, otherwise the trap is bypassed.

4. When helper blanking is active (see Table 1) lines 24 to 59, 275 to 310, 336 to 371, 587 to 622 are blanked.

5. Demodulated helper with 400 mV set-up and 4.43 MHz trap active.

6. The 4.43 MHz trap is bypassed during the letter box lines, but activated during helper lines and line 23b to reduce 4.43 MHz rest carrier.

7. The 4.43 MHz trap is active during helper lines and line 23b, during the letter box lines the trap is active when TB = 0.

8. In principle the comb filter should be enabled during letter box lines, when ECMB = 1. It depends on the comb filter if this will be implemented.

9. Line 623a contains luminance in NO_NORM, line 623a is black in a NEAR_NORM sync condition.

MODE MACP HD NRM FBA PAL

4.43

TRAP

COMB

ENABLE

DELAY

LINE

LUMA
AMPL

(b-w)

(V)

BLACK

SET-UP

(1)

(mV)

HELPER

SET-UP

(2)

(mV)

HELPER

LINES

LINE22LINE

23b

LINE
623a

100101TB

(3)

ECMB BPS 1 0 0 luma

(4)

black black black

2 1 0 1 0 1 bypass disabled BPS 0.8 200 0 luma

(4)

set-up helper

(5)

luma

3 1 1 1 0 1 bypass

(6)

disabled bypass 0.8 200 400 helper

(4)

set-up helper luma

401101TB

(7)

disabled

(8)

bypass 0.8 200 400 helper

(4)

set-up helper luma

5XX0XXTB

(3)

ECMB BPS 1 0 0 luma black black luma

(9)

6XX11XTB

(3)

ECMB BPS 1 0 0 luma

(4)

black black black

7XX1X0TB

(3)

ECMB BPS 1 0 0 luma

(4)

black black black

1996 Jan 17 12

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Fast blanking detector

For PALplus it is necessary to switch-off PALplus as soon
as an external RGB input signal is mixed into a PALplus
signal via a switching signal on the fast blanking input (F).
To detect the presence of a fast blanking signal, a circuit is
added which forces the MACP and HD bit to zero if in more
than one line per field a blanking pulse is detected. More
than one line per field is chosen to prevent switching-off at
every spike detected on the fast blanking input. The
detector output FBA (fast blanking active) can be read-out
by the I

2

C-bus.

Blanked/unblanked sync

By means of the I

2

C-bus bit BSY (blanked sync), output

signal Y

out

will be presented with or without its composite
sync part. At BSY = 0 the composite sync is present on
Y

out

. When activated, helper blanking takes place only
during helper lines scan. At BSY = 1 the black level is filled
in during the line blanking interval and vertical blanking
interval. When activated, the helper blanking extends the
vertical blanking. For PALplus modes with black set-up no
composite sync will be present on Y

out

, independent of the

BSY condition.

Sync processor (ϕ

1

loop)

The main part of the sync circuit is an oscillator running at
440 × f

H

(6.875 MHz), provided that I2C-bus address 8A is
used or 432 × fH (6.75 MHz) for 8E. Its frequency is divided
by 440 or 432 to lock the ϕ1 loop to the incoming signal.

The time-constant of the loop can be selected by the
I2C-bus (fast, auto or slow). In the fast mode the fast
time-constant is chosen independent of signal conditions.
In auto mode the medium time-constant is present with a
fast time constant during the vertical retrace period ('field
boost'). If the noise detector indicates a noisy video signal
the time-constant switches to slow with a smaller field
boost, which is also the time-constant for the slow mode.
In case of a slow time constant sync gating takes place in
a 6 µs window around the separated sync pulse. In case of
no sync lock, both the auto and the slow mode have a
medium time constant, to ensure reliable catching.

The noise content of the video signal is determined by a
noise detector circuit. This circuit measures the noise at
top sync during a 15 line period every field (65 lines after
start VA pulse). When the noise level supersedes the
detector threshold in two consecutive fields, noise is
indicated and bus bit SNR is set.

The free-running frequency of the oscillator is determined
by a digital control circuit that is locked to the active crystal.

When a power-on-reset pulse is detected the frequency of
the oscillator is switched to a frequency of about 10 MHz
(23 kHz horizontal frequency) to protect the horizontal
output transistor. The oscillator frequency is calibrated to

6.875 MHz or 6.75 MHz after receiving data on
subaddress 01 for the first time after power-on-reset
detection.

To ensure that this procedure does not fail it is absolutely
necessary to send subaddress 00 before subaddress 01.
Subaddress 00 contains the crystal indication bits and
when subaddress 01 is received the line oscillator
calibration will be initiated (for the start-up procedure after
power-on-reset detection, see the I

2

C-bus protocol). The
calibration is terminated when the oscillator frequency
reaches 6.875 MHz or 6.75 MHz.

The ϕ1 loop can be opened using the I2C-bus. This is to
facilitate On Screen Display (OSD) information. If there is
no input signal or a very noisy input signal, the ϕ1 loop can
be opened to provide a stable line frequency, and thus a
stable picture.

The sync part also delivers a two-level sandcastle signal,
which provides a combined horizontal and vertical
blanking signal and a clamping pulse for the display
section of the TV.

MACROVISION sync gating

A dedicated gating signal for the separated sync pulses,
starting 11 lines after the detection of a vertical sync pulse
until picture scan starts, can be used to improve the
behaviour of the horizontal PLL with respect to the
unwanted disturbances caused by the pseudo-sync pulses
in video signals with MACROVISION anti-copy guard
signals. This sync gating excludes the pseudo-sync pulses
and can only take place in the auto and fast ϕ

1

time

constant mode, provided I2C-bus bit SNR = 0 and I2C-bus

1996 Jan 17 13

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

bit EMG = 1. I2C-bus bit EMG = 1 enables and EMG = 0
disables this sync gating in the horizontal PLL.

Vertical divider system

The vertical divider system has a fully integrated vertical
sync separator. The divider can accommodate both 50 Hz
and 60 Hz systems; it can either determine the field
frequency automatically or it can be forced to the desired
system via the I

2

C-bus. A block diagram of the vertical

divider system is illustrated in Fig.6.
The divider system operates at twice the horizontal

frequency. The line counter receives enable pulses at this
frequency, thereby counting two pulses per line. A state
diagram of the controller is shown in Fig.7. Because it is
symmetrical only the right-hand part will be described.

Depending on the previously found vertical frequency, the
controller will be in one of the COUNT states. When the
line counter has counted 488 pulses (i.e. 244 lines of the
video input signal), the controller will move to the next state
depending on the output of the norm counter. This can be
either NORM, NEAR_NORM or NO_NORM, depending
on the position of the vertical sync pulse in the previous
fields. When the controller is in the NORM state it
generates the vertical sync pulse (VSP) automatically and
then, when the line counter is at LC = 626, moves to the
WAIT state. In this condition it waits for the next pulse of
the double line frequency signal, and then moves to the
COUNT state of the current field frequency.

Fig.6 Block diagram of the vertical divider system.

handbook, halfpage

MGE043

NORM COUNTER

CONTROLLER

TIMING

GENERATOR

LINE COUNTER

When the controller returns to the COUNT state, the line
counter will be reset half a line after the start of the vertical
sync pulse of the video input signal. The NORM window
normally looks within one line width and a sudden half line
delay of the vertical sync pulse change can therefore be
neglected, but for PALplus conditions every half line shift
of the vertical sync pulse must be detected. In this case a
half line window is used.

When the controller is in the NEAR_NORM state it will
move to the COUNT state if it detects the vertical sync
pulse within the NEAR_NORM window (i.e.
622 < LC < 628). If no vertical sync pulse is detected the
controller will move back to the COUNT state when the line
counter reaches LC = 628. The line counter will then be
reset.

When the controller is in the NO_NORM state, it will move
to the COUNT state when it detects a vertical sync pulse
and reset the line counter. If a vertical sync pulse is not
detected before LC = 722 (if the ϕ1 loop is locked, even in
forced mode) it will move to the COUNT state and reset the
line counter. If the ϕ1 loop is not locked the controller will
return to the COUNT state when LC = 628.

The forced mode option keeps the controller in either the
left-hand side (60 Hz) or the right-hand side (50 Hz) of the
state diagram.

Figure 8 illustrates the state diagram of the norm counter
which is an up/down counter that increases its counter
value by 1 if it finds a vertical sync pulse within the selected
window. If not it decreases the counter value by 1 (or 2,
see Fig.8). In the NEAR_NORM and NORM states the first
correct vertical sync pulse after one or more incorrect
vertical sync pulses is processed as an incorrect pulse.
This procedure prevents the system from staying in the
NEAR_NORM or NORM state if the vertical sync pulse is
correct in the first field and incorrect in the second field.

In case of no sync lock (SLN = 1) the norm counter is reset
to NO_NORM (wide search window), for fast vertical
catching when switching between video sources. Fast
switching between different channels however can still
result in a continuous horizontal sync lock situation, when
the channel is changed before the norm counter has
reached the NORM state. To provide faster vertical
catching in this case, measures have been taken to
prevent the norm counter to count down to zero before
reaching the NO_NORM state (see left-hand of Fig.8). Bus
bit FWW (forced wide window) enables the norm counter
to stay in the NO_NORM state if desired. The
norm/no_norm status is read out by bus bit NRM.

1996 Jan 17 14

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Fig.7 State diagram of the vertical divider system.

handbook, full pagewidth

MGE042

WAIT

FOR
RESET
PULSE

NO

NORM

NORM

NORM

COUNTCOUNT

LC = 528 or LC = 576 or on VSP LC = 628 or LC = 722 or on VSP

no_norm

else

no_norm

norm norm

LC < 488

LC ≤ 525 LC ≤ 625

NEAR

NORM

NEAR

NORM

LC < 522 LC < 622

LC < 488

on SYNC

if LC < 576

on SYNC

if LC ≥ 576

LC = 526 LC = 626

on VSP if
522 < LC < 528
or on LC = 528

on VSP if

622 < LC < 628

or on LC = 628

vertical frequency 60 Hz vertical frequency 50 Hz

near_norm near_norm

1996 Jan 17 15

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Fig.8 State diagram of the norm counter.

(1) VSP found: count 1 up; no VSP found: count 2 down.

handbook, full pagewidth

MGE041

NORM

NO

NORM

NEAR

NORM

NEAR

NORM

NEAR

NORM

22 < NC ≤ 27 0 ≤ NC < 12

10 < NC < 26

(1)

10 < NC < 17

0 < NC < 14

NC = 26

NC = 17

NC = 14

NC = 10

(RESET NC)

NC = 10
(RESET NC)

NC = 22

NC = 0

NC = 12

(RESET NC)

norm test area near_norm test area

1996 Jan 17 16

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Output port and in/output port

Two stand-alone ports are available for external use.
These ports are I2C-bus controlled, the output port by bus
bit OPB and the input/output port by bus bit OPA. Bus bit
OPA is an open-drain output, to enable input port
functionality. The pin status is read out by bus via output
bit IP.

Sandcastle

Figure 9 illustrates the timing of the acquisition sandcastle
(ASC) and the VA pulse with respect to the input signal.
The sandcastle signal is according to the two-level 5 V
sandcastle format. An external vertical guard current can
overrule the sink current to enable blanking purposes.

handbook, full pagewidth

MBG902

ASC

VA

ASC

ASC

VA

ASC

23

625

312

(1)

262

525

17

280

50 Hz

60 Hz

2nd FIELD 1st FIELD

336

2nd FIELD 1st FIELD

2nd FIELD1st FIELD

2nd FIELD1st FIELD

Fig.9 Acquisition sandcastle signal and VA pulse timing diagram.

(1) See Vertical Section in “Characteristics”

1996 Jan 17 17

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

I2C-bus

For address 8A, an unconnected pin 22 is sufficient as this pin is also a CVBS output. Do not short-circuit the input to
ground. If the address input is connected to the positive supply rail, the address changes from 8A to 8E.

Table 3 Slave address (8A)

Valid subaddresses: 00 to 03 and 17 to 18 (Hex).
Only the five least significant bits of the subaddress bytes are recognized. Auto-increment mode available for
subaddresses. The output addresses 00 and 01 can only be read in auto-increment mode. The I2C-bus transceiver is
designed for a maximum clock frequency (f

SCL

) of 100 kHz.

Table 4 Input bytes

Table 5 Output (status) bytes

Start up procedure: read the status byte until POR = 0; send subaddress 18 with the LPS bit indicating normal operation

(LPS = 0); send subaddress 00 with the crystal indicator bits (XA and XB) indicating that only one crystal is connected
to the IC

(1)

; wait for 50 ms; send subaddress 01; wait for at least 50 ms; set XA,XB to the actual crystal configuration.

Each time before the data in the IC is refreshed, the status byte must be read. If POR = 1, then the above procedure
must be carried out to restart the IC. As long as POR = 1, sending subaddress 01 does not start the line oscillator
calibration. POR is reset when the status register is read out and can only be reset when the supply voltages exceed the
POR detection levels mentioned in the Bias Generator characteristics (see Chapter “Characteristics”).
Failure to stick to the above procedure may result in an incorrect horizontal frequency after power-up or a power-dip.

Remark: if the presence of output signals HA/CLP and/or VA is required after power-up of the IC, subaddress 02 with
the ECL bit indicating ECL = 0 must be sent before sending subaddress 00.

(1) To be absolutely sure that the line oscillator is calibrated with the appropriate crystal frequency data, it is possible to check the

received values of the crystal indication bits via status bits SXA and SXB.

SLAVE ADDRESS A6 A5 A4 A3 A2 A1 A0 R/W

8A 10001X1X

SUB

ADDRESS

MSB DATA BYTE LSB

D7 D6 D5 D4 D3 D2 D1 D0

00 INA INB TB ECMB FOA FOB XA XB
01 FORF FORS OPA OPB POC FM SAF FRQF
02 EFS ECL HU5 HU4 HU3 HU2 HU1 HU0
03 LCA FWW −−−−−−

.........

17 MACP HD HOB HBC BSY YH2 YH1 −
18 BPS LPS FRGB EMG YD3 YD2 YD1 YD0

OUTPUT

ADDRESS

D7 D6 D5 D4 D3 D2 D1 D0

00 POR FSI YC SL IP SAK SBK FRQ
01 −−−FBA NRM SNR SXA SXB

1996 Jan 17 18

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

INPUT SIGNALS
Table 6 Source select; note 1

Note

1. When ECMB = 1 and no current is drawn from the
Fscomb pin, source select is forced to be YC.

Table 7 Trap bypass; note 1

Note

1. The chrominance trap is always bypassed in YC mode
or when MACP = 1.

Table 8 Comb filter enable; note 1

Note

1. MACP = 1 or HD = 1 always enforces ECMB = 0.

Table 9 ϕ

1

time constant

Table 10 Crystal indication

INA INB SOURCE

0 0 CVBS
01YC
1−auto CVBS / YC

TB CONDITION

0 trap not bypassed
1 trap bypassed

ECMB CONDITION

0 comb filter disabled
1 comb filter enabled

FOA FOB MODE

0 0 auto
0 1 slow
1 − fast

XA XB CRYSTAL

002×3.6 MHz
011×3.6 MHz
101×4.4 MHz
111×3.6 MHz and 1 × 4.4 MHz

Table 11 Forced field frequency

Table 12 Output value I/O port

Table 13 Output value O port

Table 14 ϕ

1

loop control

Table 15 Forced standard; note 1

Note

1. If XA and XB indicate that only one crystal is
connected to the IC and FM and FRQF force it to use
the second crystal, then colour will be switched off.
When SAF = 0, SECAM 60 Hz is disabled; when
SAF = 1, SECAM 60 Hz is enabled.

Table 16 Enable fast switch

FORF FORS FIELD FREQUENCY

0 0 auto; 60 Hz if no lock
0 1 60 Hz
1 0 50 Hz
1 1 auto; 50 Hz if no lock

OPA LEVEL

0 LOW
1 HIGH

OPB LEVEL

0 LOW
1 HIGH

POC CONDITION

0 ϕ

1

loop closed

1 ϕ

1

loop open

FM SAF FRQF STANDARD

0 −−auto search
1 0 0 PAL/NTSC second crystal
1 0 1 PAL/NTSC reference crystal
1 1 0 black and white
1 1 1 SECAM reference crystal

EFS CONDITION

0 fast switch disabled
1 fast switch enabled, when FRGB = 0

1996 Jan 17 19

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Table 17 External RGB clamp mode

Table 18 Forced RGB mode

Table 19 YUV outputs as a function of EFS, FRGB and

Fast switch F

Table 20 Hue

Table 21 Line-locked clock active

Table 22 Forced wide window

Table 23 Motion Adaptive Colour Plus; note 1

Note

1. Black set-up will only be present in a norm sync
condition.

ECL CONDITION

0 off; internal clamp pulse is used
1

on; external clamp pulse has to be supplied
to CLP pin

FRGB CONDITION

0 YUV, when disabled via EFS
1 forced RGB

EFS FRGB F SELECTED INPUTS

00−YUV

− 1 − RGB

100YUV
101RGB

FUNCTION ADDRESS DIGITAL NUMBER

Hue HU5 to HU0 000000 = −45°

111111 = +45°

LCA CONDITION

0 OPB/CLP mode
1 LLC/HA mode

FWW CONDITION

0 auto window mode
1 forced wide window

MACP CONDITION

0 internal 4.43 notch used
1

external MACP chrominance filtering used,

4.43 notch bypassed, black set-up 200 mV

Table 24 PALplus helper demodulator active; note 1

Note

1. Black set-up and helper set-up will only be present in
a norm sync condition.

Table 25 PALplus/EDTV-2 helper blanking (Y, U, V)

Table 26 Blanked sync on Y

out

Note

1. Except for PALplus with black set-up.

Table 27 Luminance to helper delay control

Table 28 Baseband delay line bypass; note 1

Note

1. When HD = 1 the baseband delay line is forced into
bypass mode. SECAM cannot be bypassed.

Table 29 Low power standby mode

HD CONDITION

0off
1

on, PALplus mode with helper set-up
400 mV and black set-up 200 mV

HOB HBC SNR BLANKING

0 −− off
10− on
110 off
111 on

BSY CONDITION

0 unblanked sync; note 1
1 blanked sync

YH2 to YH1 CONDITION

00 −20 ns
11 +25 ns

BPS CONDITION

0 no bypass
1 baseband delay line bypassed

LPS CONDITION

0 normal operation
1 low power standby

1996 Jan 17 20

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Table 30 Enable MACROVISION gating

Table 31 Luminance delay control

OUTPUT SIGNALS
Table 32 Power-on reset

Table 33 Field frequency indication

Table 34 Input switch mode

Table 35 ϕ

1

lock indication

Table 36 Input value I/O port

EMG CONDITION

0 disable gating
1 enable gating

YD3 to YD0 CONDITION

0000 −280 ns

1111 +160 ns

POR CONDITION

0 normal mode
1 power-down mode

FSI CONDITION

050Hz
160Hz

YC CONDITION

0 CVBS mode
1 Y/C mode

SL CONDITION

0 not locked
1 locked

IP LEVEL

0 LOW
1 HIGH

Table 37 Standard read-out

Table 38 Fast blanking active

Table 39 Norm/no_norm indication in vertical divider

system

Table 40 Signal-to-noise ratio

Table 41 Crystal indication read-out

SAK SBK FRQ STANDARD

0 0 0 PAL second crystal
0 0 1 PAL reference crystal
0 1 0 NTSC second crystal
0 1 1 NTSC reference crystal
1 0 0 illegal forced mode
1 0 1 SECAM reference crystal
11−colour off

FBA CONDITION

0 no fast blanking detected
1 fast blanking detected

NRM CONDITION

0 no_norm or near_norm
1 norm

SNR CONDITION

0 S/N > 20 dB
1 S/N < 20 dB

SXA SXB CRYSTAL

002×3.6 MHz
011×3.6 MHz
101×4.4 MHz
111×3.6 MHz and 1 × 4.4 MHz

1996 Jan 17 21

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

THERMAL CHARACTERISTICS

QUALITY SPECIFICATION

Quality level in accordance with

“SNW-FQ-611-E”

is applicable for ESD protection, human body model: ±3000 V,
100 pF, 1500 Ω on all pins. Machine model: ±300 V, 200 pF, 0 Ω on all pins. The number of the quality specification can
be found in the

“Quality Reference Handbook”

. The handbook can be ordered using the code 9397 750 00192.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

supply voltage −−9.0 V

I

CC

supply current −−70 mA

P

tot

total power dissipation −−630 mW

T

stg

storage temperature −55 − +150 °C

T

amb

operating ambient temperature −10 − +70 °C

SYMBOL PARAMETER VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air 48 K/W

1996 Jan 17 22

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

CHARACTERISTICS

V

CC

=8V; T

amb

=25°C; I2C-bus address 8A; unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply (pin 7)

V

CC

supply voltage 7.2 8.0 8.8 V

I

CC

supply current 50 60 70 mA

P

tot

total power dissipation 360 480 620 mW

I

CC

low power supply current 12 16 22 mA

Input switch
Caution: the voltage on pin 25 must never exceed 5.5 V, if it does, the IC enters a test mode

Y/CVBS

INPUT (PIN 26)

V

i(p-p)

input voltage (peak-to-peak value) top sync-white − 1.0 1.43 V

Z

i

input impedance 60 −−kΩ

C

i

input capacitance −−5pF

I

i(bias)

input bias current − 3.3 −µA
CINPUT (PIN 25)
V

i(p-p)

input burst voltage

(peak-to-peak value)

− 0.3 0.6 V

Z

i

input impedance 60 −−kΩ
C

i

input capacitance −−5pF
CVBS OUTPUT (PIN 22); ONLY FOR ADDRESS 8A
V

o(p-p)

output voltage (peak-to-peak value) top sync-white − 1.0 − V
Z

o

output impedance −−500 Ω
B bandwidth at −3dB C

L

=15pF 7 −−MHz

V

tsl

top-sync voltage level 2.2 2.8 3.4 V

Bias generator (pin 8)

V

D(DEC)

digital supply voltage 4.8 5.0 5.2 V
V

det(CC)

POR detection level for power supply 5.7 6.0 6.3 V
V

det(DEC)

POR detection level for DEC pin 4.0 4.3 4.6 V
I

L(DEC)

current load on digital supply sum of pins 8, 11, 16, 17 −−2.0 mA

Subcarrier regeneration

G

ENERAL; note 1

CR catching and holding range

reference crystal ±500 −−Hz
second crystal ±450 −−Hz

ϕ phase shift for 80% deviation of

catching range

−−5 deg

Z

i

input impedance

reference crystal and second crystal 0.80 1.00 1.20 kΩ

1996 Jan 17 23

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

FSCOMB OUTPUT (PIN 23)
V

sub(p-p)

subcarrier output voltage amplitude

(peak-to-peak value)

CL= 15 pF 150 200 300 mV

V

cen

comb enable voltage level 4.0 4.2 5.0 V
V

cdis

comb disable voltage level − 0.1 1.4 V
I

sink

sink current to undo forced Y/C mode

of input switch

0.4 − 1.0 mA

R

GND

value of grounded resistor to undo

forced Y/C mode of input switch

4 − 10 kΩ

ACC

ACC control range −20 − +6 dB

change of −(R−Y) and −(B−Y) signals

over range

−−1dB

colour killer treshold

PAL/NTSC −34 −31 −28 dB
SECAM −31 −28 −25 dB

kill/unkill hysteresis − 3 − dB

Demodulators; −(R−Y) and −(B−Y) outputs (pins 1 and 2); demodulated Y

helper

(pin 12)

G

ENERAL

ratio of −(B−Y) to −(R−Y) standard colour bar 1.20 1.27 1.34
TC temperature coefficient of −(R−Y) and

−(B−Y) amplitude

−−0.1 %/K

spread of −(R−Y) to −(B−Y) ratio

between standards

−1 − +1 dB

V

−(R−Y)

output level of −(R−Y) output during

blanking level

1.7 2.1 2.5 V

V

−(B−Y)

output level of −(B−Y) output during

blanking level

1.7 2.0 2.5 V

B bandwidth at −3 dB 600 670 750 kHz
Z

o

output impedance −−500 Ω
∆V

CC

supply voltage dependence −−2 %/V
ϕ hue phase shift note 3 ±35 ±45 ±55 deg

PAL/NTSC

DEMODULATOR

V

−(R−Y)(p-p)

−(R−Y) output voltage

(peak-to-peak value)

standard colour bar 480 540 605 mV

V

−(B−Y)(p-p)

−(B−Y) output voltage

(peak-to-peak value)

standard colour bar 610 685 765 mV

V

res(p-p)

8.8 MHz residue (peak-to-peak value) both outputs −−15 mV

V

res(p-p)

7.2 MHz residue (peak-to-peak value) both outputs −−20 mV

V

res(p-p)

4.4 and 3.6 MHz residue both outputs −−tbf mV

S/N signal-to-noise ratio 0 to 1 MHz 46 −−dB

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 24

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

PAL DEMODULATOR
V

R(p-p)

1

⁄2H ripple (peak-to-peak value) −−20 mV

ϕ demodulator phase error −−5 deg

SECAM

DEMODULATOR

V

−(R−Y)(p-p)

−(R−Y) output voltage

(peak-to-peak value)

standard colour bar 0.96 1.08 1.21 V

V

−(B−Y)(p-p)

−(B−Y) output voltage

(peak-to-peak value)

standard colour bar 1.22 1.37 1.53 V

f

os

black level offset frequency −−7 kHz
S/N signal-to-noise ratio 0 to 1 MHz 40 −−dB
V

res(p-p)

7.8 MHz to 9.4 MHz residue

(peak-to-peak value)

−−30 mV

f

pole

pole frequency of de-emphasis 77 85 93 kHz

ratio of pole and zero frequency − 3 −
V

cal

calibration voltage 345V
NL non linearity −−3%

D

EMODULATED HELPER (PIN 12)

V

Y(p-p)

helper output voltage

(peak-to-peak value)

PALplus limits 610 686 770 mV

V

Y(p-p)

helper set-up amplitude only helper lines, line 22 and

line 23

380 400 420 mV

t

d

group delay within passband −−10 ns
ϕ demodulator phase including

1

⁄2H error −−5 deg

α

c(M/D)

crosstalk modulated helper to

demodulated sign

0 to 1 MHz −36 −−dB

4.43 MHz residue −36 −−dB
THD total harmonic distortion in ACC −36 −−dB
t

Y

helper output timing to Y

out

−−10 ns

V

os

offset demodulator mid-grey to
inserted mid-grey level

mid-grey line 23 and line 22;
see Fig.5

−−5mV

t

su

helper set-up width (363 LLC pulses)
and start helper set-up

− 52.8 −µs

t

d

delay between mid-sync of input and
start helper set-up

YD3 to YD0 = 1011; note 4;
see Fig.5

− 8.8 −µs

t

d

delay between start black set-up and
start helper set-up (212 LLC pulses)

only line 22 and 23 − 30.8 −µs

B baseband helper bandwidth at −3dB − 2.6 − MHz

Filters

T

UNING

V

tune

tuning voltage 1.5 3 6 V

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 25

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

LUMINANCE DELAY; YD3 to YD0 = 1011; YH2 to YH1 = 01
t

d(on)

delay time colour on fsc= 3.6 MHz; TB = 0 555 580 605 ns

f

sc

= 3.6 MHz and 4.4 MHz;

TB = 1

515 540 565 ns

t

d(off)

delay time colour off 350 370 390 ns

t

d(tun)

delay time tuning range 15 steps YD3 to YD0; note 2 −280 − +160 ns

t

d(tun)

Y to helper delay tuning range 3 steps YH2 to YH1 −20 − +25 ns
CHROMINANCE TRAP
f

o

notch frequency fsc= 3.6 MHz 3.53 3.58 3.63 MHz

f

sc

= 4.4 MHz 4.37 4.43 4.49 MHz
SECAM 4.23 4.29 4.35 MHz
Y/C and B/W mode not active

B bandwidth at −3dB f

sc

= 3.6 MHz 2.60 2.80 3.00 MHz
f

sc

= 4.4 MHz 3.20 3.50 3.80 MHz
SECAM 2.90 3.15 3.50 MHz

f

sc(sup)

subcarrier suppression 26 −−dB
CHROMINANCE BANDPASS
f

res

resonant frequency fsc= 3.6 MHz 3.40 3.58 3.76 MHz

f

sc

= 4.4 MHz 4.21 4.43 4.65 MHz

B bandwidth at −3dB f

sc

= 3.6 MHz 1.05 1.20 1.35 MHz

f

sc

= 4.4 MHz 1.25 1.40 1.55 MHz
CLOCHE FILTER
f

res

resonant frequency SECAM 4.26 4.29 4.31 MHz

B bandwidth at −3 dB SECAM 241 268 295 kHz

Sync input (pin 26)

V

IDEO INPUT

V

Y/CVBS(p-p)

sync pulse amplitude
(peak-to-peak value)

35 300 600 mV

slicing level 40 47 55 %

t

d

delay of sync pulse due to internal
filter

0.2 0.3 0.4 µs

N

th

noise detector threshold level 18 20 22 dB
H hysteresis 235dB
t

d

delay between internally separated

vertical sync pulse and video signal

12 18.5 27 µs

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 26

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Horizontal section

CLP OUTPUT (OPB/CLP MODE); HA OUTPUT (LLC/HA) MODE (BOTH ON PIN 17)
V

OH

HIGH level output voltage 4.0 5 5.5 V
V

OL

LOW level output voltage − 0.2 0.4 V
I

sink

sink current 2 −−mA
I

source

source current 2 −−mA
t

W(HA)

HA pulse width (32 LLC pulses) − 4.65 −µs
t

d

delay between middle of horizontal

sync pulse and middle of H

A

note 4 0.3 0.45 0.6 µs

t

W

CLP pulse width (25 LLC pulses) − 3.65 −µs
t

d

delay start CLP pulse to start black

set-up (33 LLC pulses + Y delay)

HD = 1 or MACP = 1; YD3 to
YD0 = 1011; see Fig.5

− 5.35 −µs

t

d

delay between middle of horizontal

sync pulse and start of CLP pulse

note 4 3.0 3.2 3.4 µs

σ 6σ jitter ϕ

1

in auto mode −−5ns

FIRST LOOP (ϕ1)

∆f frequency deviation when not locked −−1.5 %
∆V

CC

supply voltage dependence − 40 − Hz/V
f

CR

catching range ±625 −−Hz
f

HR

holding range −−±1.0 kHz
φ static phase shift −−0.1 µs/kHz

LLC

OUTPUT (PIN 16); LLC/HA MODE

f

o

output frequency

440 × f

H

50 Hz standard − 6.875 − MHz

440 × f

H

60 Hz standard − 6.923 − MHz

V

o(p-p)

output amplitude

(peak-to-peak value)

0.25 −−V

V

o

DC output voltage level − 2.5 V
t

d

delay between negative edge of LLC

and positive edge of HA pulse

CL=15pF 102040ns

Vertical section

V

ERTICAL OSCILLATOR

f

fr

free running frequency FORF = 1; divider ratio 628 − 50 − Hz

FORF = 0; divider ratio 528 − 60 − Hz

f

LR

frequency locking range 43 − 64 Hz
LR divider locking range 488 625 722

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 27

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

VA OUTPUT (PIN 11); ECL = 0
V

OH

HIGH level output voltage 4.0 5 5.5 V
V

OL

LOW level output voltage − 0.2 0.4 V
I

sink

sink current 2 −−mA
I

source

source current 2 −−mA
t

W(VA)

VA pulse width

2.5/f

H

50 Hz standard − 160 −µs

3/f

H

60 Hz standard − 192 −µs

t

d

delay between start of vertical sync

pulse and positive edge of VA

note 5; see Fig.9 − 35 −µs

Z

o

output impedance ECL = 1 3 −−MΩ

Sandcastle output (pin 10)

V

o

zero level output voltage 0 0.5 1 V
I

sink

sink current 0.5 0.7 0.9 mA
HORIZONTAL AND VERTICAL BLANKING
V

bl

blanking voltage level 2.2 2.5 2.8 V
I

source

source current 0.5 0.7 0.9 mA
I

ext

external current required to force the

output to the blanking level

1.0 − 3.0 mA

t

W(H)

horizontal blanking pulse width (69 LLC pulses) − 10.0 −µs
t

d

delay between start of horizontal

blanking and start of clamping pulse

(44 LLC pulses) − 6.4 −µs

CLAMPING PULSE
V

clamp

clamping voltage level 4.2 4.5 4.8 V
I

source

source current 0.5 0.7 0.9 mA
t

W(clamp)

clamping pulse width (25 LLC pulses) − 3.6 −µs
t

d

delay between middle sync of input

and start of clamping pulse

note 4 3.0 3.2 3.4 µs

YUV/RGB switches
Caution: the voltage on pin 3 must never exceed 5.5 V, if it does, the IC enters a test mode

RGB INPUTS (PINS 21, 20 AND 19 RESPECTIVELY); note 6
V

i(p-p)

input voltage (peak-to-peak value) − 0.7 1 V
Z

i

input impedance 3 −−MΩ
C

i

input capacitance −−5pF
UV INPUTS (PINS 3 AND 4 RESPECTIVELY); note 6
V

i(p-p)

U input voltage (peak-to-peak value) − 1.33 1.90 V
V

i(p-p)

V input voltage (peak-to-peak value) − 1.05 1.50 V
Z

i

input impedance (both inputs) 3 −−MΩ
C

i

input capacitance (both inputs) −−5pF

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 28

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Y OUTPUT (PIN 12)
V

o(p-p)

U output voltage black-white − 1.00 − V
V

o(p-p)

PALplus output voltage black-white − 0.80 − V
Z

o

output impedance −−250 Ω
V

o

DC output voltage level black level 2.7 3.0 3.3 V
S/N signal-to-noise ratio f = 0 to 5 MHz − 52 − dB
V

out

black set-up amplitude MACP = 1 or HD = 1 190 200 210 mV
t

W(black)

black set-up width 363 LLC pulses − 52.8 −µs
t

d

delay between mid-sync of input and

start black set-up

YD3 to YD0 = 1011; note 4;
see Fig.5

− 8.8 −µs

V

os

offset voltage Y

black

to re-inserted

black

see Fig.5 −−10 mV

G

v

voltage gain

from Y/CVBS

i

to Y

o

1.35 1.43 1.50

from Y/CVBS

i

to Y

o

MACP = 1 or HD = 1 1.08 1.14 1.20
UV OUTPUTS (PINS 14 AND 13); note 6
V

o(p-p)

U output voltage (peak-to-peak value) − 1.33 1.90 V

V

o(p-p)

V output voltage (peak-to-peak value) − 1.05 1.50 V

Z

o

output impedance (both outputs) −−250 Ω

V

o

DC output voltage level 2.3 2.6 2.9 V

G

v

voltage gain

from U

in

to U

out

0.94 0.97 1.00

from V

in

to V

out

0.94 0.97 1.00
GENERAL
V

diff

difference between black levels of
YUV outputs in RGB mode and YUV
mode

sync locked mixed RGB/YUV
via fast blanking

−−10 mV

NL non-linearity any input to any output −−5%
B bandwidth at −3 dB any input to any output;

CL=15pF

7 −−MHz

α

c

crosstalk between RGB and UV

in

signals on UV

out

f=0to5MHz −−−50 dB

B bandwidth at −1 dB any input to any output;

C

L

=15pF

5 −−MHz

t

clamp

internal Y clamping time constant − 10 − ms
FAST SWITCH F(PIN 18)
V

IL

LOW level input voltage UV switched on 0 − 0.5 V
V

IH

HIGH level input voltage RGB switched on 0.9 − 3.0 V
t

d

switching delay between F and YUV −−20 ns

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 29

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

EXTERNAL CLAMP INPUT (PIN 17)
V

IL

LOW level input voltage (pin CLP) no clamping 0 − 0.6 V
V

IH

HIGH level input voltage (pin CLP) clamping 2.4 − 5.5 V
t

W(clamp)

clamping pulse width note 7 1.8 3.5 −µs
V

os(clamp)

clamping offset voltage on UV outputs −−10 mV
Z

i

input impedance ECL = 1 3 −−MΩ

Colour matrix

G

v

voltage gain

from R to Y

out

0.41 0.43 0.45

from G to Y

out

0.80 0.84 0.88

from B to Y

out

0.15 0.16 0.17

from R to U

out

0.41 0.43 0.45

from G to U

out

0.80 0.84 0.88

from B to U

out

1.21 1.27 1.33

from R to V

out

0.95 1.00 1.05

from G to V

out

0.80 0.84 0.88

from B to V

out

0.15 0.16 0.17

Output and in/output port

O

PORT (PIN 16); OPB/CLP MODE

V

OH

HIGH level output voltage 4.0 5 5.5 V
V

OL

LOW level output voltage − 0.2 0.4 V
I

sink

sink current 100 −−µA
I

source

source current 100 −−µA
I/O PORT; OPB/CLP MODE
V

OH

HIGH level output voltage −−VCCV
V

OL

LOW level output voltage − 0.2 0.4 V
I

sink

sink current 2 −−mA
V

IH

HIGH level input voltage 2.0 −−V
V

IL

LOW level input voltage −−0.6 V

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 17 30

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

Notes to the characteristics

1. All frequency variations are referred to 3.58 MHz or 4.43 MHz carrier frequency. All oscillator specifications are
measured with the Philips crystal series 9920 520 0047x and 9920 520 0048x. The oscillator circuit is insensitive to
the spurious responses of the crystal. The typical crystal parameters for the crystals mentioned above are:

a) Load resonance frequency f0= 4.433619 MHz or 3.579545 MHz (CL= 20 pF).
b) Motional capacitance CM= 20.6 fF (4.43 MHz crystal) or 14.7 fF (3.58 MHz crystal).
c) Parallel capacitance C0= 5 pF for both crystals.
d) The minimum detuning range can only be specified if both the IC and the crystal tolerances are known and the

general specifications given for the subcarrier regeneration are therefore valid for the specified crystal series. In
the figure tolerances of the crystal with respect to nominal frequency, motional capacitance and ageing have been
taken into account and have been counted for by Gaussian addition.
Whenever different typical crystal parameters are used, the following equation might be helpful for calculating the
impact on the detuning capabilities:

e) Detuning range proportional to:

f) The resulting detuning range should be corrected for temperature shift and supply deviation of both the IC and

the crystal. For the above mentioned crystals, the actual load capacitance in the application should be C

L

=18pF
to account for parasitic capacitance on and off chip. For 3-norm applications with two crystals connected to one
pin, the maximum load capacitance of the crystal pin should not exceed 12 pF.

2. YD3 and YD2 are equal significant bits, both representing a 160 ns delay step. YD1 represents 80 ns and YD0
represents a 40 ns delay step.

3. The Hue control is active for NTSC on the −(R−Y) and −(B−Y) signals and for PALplus only on the demodulated
helper signal.

4. This delay is partially caused by the low-pass filter at the sync separator input.

5. The delay between the positive edge of VA and the first negative edge of HA (or positive edge of CLP) after VA is

34.5 µs for field 1 and 2.5 µs for field 2 (17 LLC pulses with or without respectively). Especially for PALplus
signals the regenerated VA pulses must have a fixed and known phase relation to the undisturbed V pulses of the

incoming video signal. This relation must remain correct as long as the vertical divider is in norm mode (indirect sync
mode), so the coincidence window used here must be a half line compared to the one line coincidence window used
outside PALplus. With a well defined phase relation of the regenerated VA pulses to the regenerated HA pulses a
correct field identification (odd/even) and all the required timing signals referring to a certain line in each frame can
be generated externally in the PALplus decoder environment.

6. The output signals of the demodulator are called −(R−Y) and −(B−Y) in this specification. The colour difference input
and output signals of the YUV switch are called UV signals. However, these signals do not have the amplitude
correction factor of real UV signals. They are called UV signals and not −(R−Y) and −(B−Y) to prevent confusion
between the colour difference signals of the demodulator and the colour difference signals of the YUV switch.

7. The maximum external clamping pulse width is the minimum available blanking level time of the supplied RGB
signals.

C

M

1

C

O

C

L

------- -

+







2

---------------------------

1

2f

H

×

--------------

1996 Jan 17 31

Philips Semiconductors Preliminary specification

I

2

C-bus controlled, alignment-free PAL/NTSC/SECAM

decoder/sync processor with PALplus helper demodulator

TDA9144

TEST AND APPLICATION INFORMATION

handbook, full pagewidth

MBG901

82 kΩ

15 kΩ

240Ω

120
kΩ

100Ω100

Ω

100
µF

100

nF

100nF100nF100nF100

nF

100

nF

3.3
nF

100

nF

100

nF

18pF18

pF

100

nF

470nF3.3

nF

1nF

100

nF

75

Ω

75

Ω

100

nF

75

Ω

100

nF

75

Ω

100
nF

75

Ω

100

nF

75

Ω

100

nF

16 15 14

13 12 11 10 9

123

45678

14 13 12 11 10 9

8

1234 56 7

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17

12345678910111213141516

TDA9144

TDA4665

PC74HCU04

5V1

LLC interface

to TDA9151

5 V

8 V

GND

Y/CVBS C

Fscomb

ADDR (CVBS)

R G B F CLP/HA

SCL

SDA SC VA Y

outVoutUout

I/O PORT

O PORT/LLC LCC HA

Fig.10 Application circuit.

Pins 28 and 32 are sensitive to leakage currents.
Keep the analog and digital ground currents well separated
The decoupling capacitor between pin 8 and9 must be placed as close to the IC as possible.

1996 Jan 17 32

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

EQUIVALENT PIN CIRCUITS

PIN SYMBOL EQUIVALENT PIN CIRCUIT

1 −(R−Y)

2 −(B−Y)

3U

in

100 Ω

1

0.2

mA

MGE046

100 Ω

2

0.2

mA

MGE047

3

0.07 mA

100 Ω

MGE048

1996 Jan 17 33

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

4V

in

5 SCL

6 SDA

7V

CC

8 DEC

PIN SYMBOL EQUIVALENT PIN CIRCUIT

4

100 Ω

DCT

CLIN

0.07 mA

MGE049

5

MGE050

6

DATA

MGE051

7

MGE052

8

5 V

MGE053

1996 Jan 17 34

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

9 DGND

10 SC

11 VA

12 Y

out

PIN SYMBOL EQUIVALENT PIN CIRCUIT

9

MGE054

10

MGE055

11

MGE056

100 Ω

12

0.5

mA

MGE057

1996 Jan 17 35

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

13 V

out

14 U

out

15 I/O PORT

16 O PORT/LLC

PIN SYMBOL EQUIVALENT PIN CIRCUIT

100 Ω

13

0.5

mA

MGE058

100 Ω

14

0.5

mA

MGE059

15

MGE060

16

100 Ω

MGE061

1996 Jan 17 36

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

17 CLP/HA

18 F

19 B
20 G
21 R

PIN SYMBOL EQUIVALENT PIN CIRCUIT

17

MGE062

18

100 Ω

MGE064

19

100 Ω

20

100 Ω

21

100 Ω

CLP

0 to ±60 µA0 to ±60 µA 0 to ±60 µA

MGE063

1996 Jan 17 37

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

22 ADDR (CVBS)

23 Fscomb

24 HPLL

25 C

PIN SYMBOL EQUIVALENT PIN CIRCUIT

22

100 Ω

0.5
mA

MGE065

23

100 Ω

MGE066

24

4 V

4 V

MGE067

25

100 Ω

1 MΩ

MGE068

1996 Jan 17 38

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

26 Y/CVBS

27 AGND analog ground
28 FILT

ref

29 CPLL

PIN SYMBOL EQUIVALENT PIN CIRCUIT

26

1 kΩ

100 Ω

3.5
µA

MGE069

28

INIT

4 V

MGE071

29

MGE072

1996 Jan 17 39

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

30 XTAL

31 XTAL2

32 SEC

ref

PIN SYMBOL EQUIVALENT PIN CIRCUIT

30

1 kΩ

0.2

mA

MGE073

31

1 kΩ

0.2

mA

MGE074

32

CAL

MGE075

1996 Jan 17 40

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

PACKAGE OUTLINE

UNIT b

1

cEe M

H

L

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

DIMENSIONS (mm are the original dimensions)

SOT232-1

92-11-17
95-02-04

b

max.

w

M

E

e

1

1.3

0.8

0.53

0.40

0.32

0.23

29.4

28.5

9.1

8.7

3.2

2.8

0.181.778 10.16

10.7

10.2

12.2

10.5

1.6

4.7 0.51 3.8

M

H

c

(e )

1

M

E

A

L

seating plane

A

1

w M

b

1

e

D

A

2

Z

32

1

17

16

b

E

pin 1 index

0 5 10 mm

scale

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

(1) (1)

D

(1)

Z

A

max.

12

A

min.

A

max.

SDIP32: plastic shrink dual in-line package; 32 leads (400 mil)

SOT232-1

1996 Jan 17 41

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

SOLDERING
Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“IC Package Databook”

(order code 9398 652 90011).

Soldering by dipping or by wave

The maximum permissible temperature of the solder is
260 °C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact

time of successive solder waves must not exceed
5 seconds.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (T

stg max

). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.

Repairing soldered joints

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

PURCHASE OF PHILIPS I

2

C COMPONENTS

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

Purchase of Philips I

2

C components conveys a license under the Philips’ I2C patent to use the
components in the I2C system provided the system conforms to the I2C specification defined by
Philips. This specification can be ordered using the code 9398 393 40011.

1996 Jan 17 42

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

NOTES

1996 Jan 17 43

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM
decoder/sync processor with PALplus helper demodulator

TDA9144

NOTES

Philips Semiconductors – a worldwide company

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Internet: http://www.semiconductors.philips.com/ps/
For all other countries apply to: Philips Semiconductors,

International Marketing and Sales, Building BE-p,
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SCDS47 © Philips Electronics N.V. 1996

All rights are reserved. Reproduction in whole or in part is prohibited without the
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The information presented in this document does not form part of any quotation
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use. Publication thereof does not convey nor imply any license under patent- or
other industrial or intellectual property rights.

Printed in The Netherlands

537021/1100/01/pp44 Date of release: 1996 Jan17
Document order number: 9397 750 00577