Datasheet TDA9144 Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

TDA9144

2

I

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

Preliminary specification
File under Integrated Circuits, IC02

1996 Jan 17

Philips Semiconductors Preliminary specification

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

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

2

• Noise detector with I

• 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

• internal MACROVISION gating for the horizontal PLL

enabled by bus bit EMG.

C-bus read-out

out

by I2C-bus bit BSY

GENERAL DESCRIPTION

The TDA9144 is an I
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

2

C-bus are available.

I
The I2C-bus address of the TDA9144 is hardware

programmable.
The TDA9144 is pin compatible with the TDA9141

(multistandard decoder/sync processor).

2

C-bus controlled, alignment-free

TDA9144

ORDERING INFORMATION

TYPE

NUMBER

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

1996 Jan 17 2

NAME DESCRIPTION VERSION

PACKAGE

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

I

CC

V

CVBS(p-p)

V

Y(p-p)

V

C(p-p)

V

Y(out)

V

Y(out)

V

Y(out)(p-p)

V

U(out)(p-p)

V

V(out)(p-p)

V

SC(bl)

V

SC(clamp)

V

VA

V

HA

V

LLC(p-p)

V

R,G,B(p-p)

V

clamp(I/O)

V

sub(p-p)

V

OPORT

positive supply voltage 7.2 8.0 8.8 V
supply current 50 60 70 mA
CVBS input voltage (peak-to-peak value) top sync-white − 1.0 1.43 V
luminance input voltage

top sync-white − 1.0 1.43 V

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

− 0.3 0.6 V

(peak-to-peak value)
luminance black-white output voltage − 1.0 − V
luminance PALplus output voltage black-white − 0.8 − V
maximum luminance helper signal output

− 686 − mV

voltage (peak-to-peak value)
U output voltage (peak-to-peak value) standard colour bar − 1.33 − V
V output voltage (peak-to-peak value) standard colour bar − 1.05 − V
sandcastle blanking voltage level 2.2 2.5 2.8 V
sandcastle clamping voltage level 4.2 4.5 4.8 V
VA output voltage 4.0 5.0 5.5 V
HA output voltage 4.0 5.0 5.5 V
LLC output voltage amplitude

250 500 − mV

(peak-to-peak value)
RGB input voltage (peak-to-peak value) 0 to 100% saturation − 0.7 1.0 V
clamping pulse input/output voltage − 5.0 − V
subcarrier output voltage amplitude

150 200 300 mV

(peak-to-peak value)
port output voltage 4.0 5.0 5.5 V

1996 Jan 17 3

Philips Semiconductors Preliminary specification

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

BLOCK DIAGRAM

in

UinV

4

3

BPS

out

Y

out

V

out

U

18 14 13 12

21 20 19

YD3−YD0YH1−YH0

SWITCH

TB

MATRIX

DELAY

DELAY

ref

SEC

−(R−Y)

−(B−Y)

1322

2

2

SWITCH

SECAM

DEMOD

helper

DEMOD

PAL/NTSC

HUE

IDENT

SYSTEM

FSC

BUFFER



MBG897

Fscomb

TDA9144

handbook, full pagewidth

VA

SC CLP/HA R G B F

HPLL

CC

V

SDA SCL

17
11

VA

HA

10



TIMING

GENERATOR

SYNC

VERTICAL

57 24

C-BUS

6

2

I

ECL

ECL

CLP

SEPARATOR

TRAP

PLL

HORIZONTAL

SYNC

SEPARATOR

LCA

FILTER

TUNING

SECAM

CLOCHE

Y CLAMP

PLL

CHROMA

CHROMA

BANDPASS

ACC

SWITCH

CHROMA

INA-INB

ECMB

Fig.1 Block diagram.

TDA9144

AGND CPLL XTAL XTAL2

ref

FILT

BIAS

92728 29 30 31 23

DGND

22

15

ADDR (CVBS)

16

I/O PORT

O PORT/LLC

1996 Jan 17 4

26

Y/CVBS

25

C

8

DEC

Philips Semiconductors Preliminary specification

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

PINNING

SYMBOL PIN DESCRIPTION

−(R−Y) 1 output signal for −(R−Y)

−(B−Y) 2 output signal for −(B−Y)

U

in

V

in

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

CC

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

Y

out

V

out

U

out

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

CLP/HA 17 clamping pulse/HA

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

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

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

ref

3 chrominance U input
4 chrominance V input

7 positive supply voltage

synchronization pulse
12 luminance output
13 chrominance V output
14 chrominance U output

output

synchronization pulse

input/output

2

C-bus address input (CVBS

output)

28 filter reference decoupling

32 SECAM reference decoupling

handbook, halfpage

O PORT/LLC

−(R−Y)

−(B−Y)

U

in

V

in

SCL
SDA
V

CC

DEC

DGND

SC

10

VA

11

Y

12

out

V

13

out

U

14

out

I/O PORT

15
16

Fig.2 Pin configuration.

1
2
3
4
5
6
7
8
9

TDA9144

MBG896

TDA9144

SEC

32

ref

XTAL2

31

XTAL

30

CPLL

29

FILT

28

ref

AGND

27

Y/CVBS

26

C

25

HPLL

24

Fscomb

23

ADDR (CVBS)

22

R

21

G

20

B

19

F

18

CLP/HA

17

1996 Jan 17 5

Philips Semiconductors Preliminary specification

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

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

CAUTION

The voltage on the chrominance pin must never exceed

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

The TDA9144 has a two pin input for CVBS or Y/C signals
which can be selected via the I
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
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 voltage on the Uin pin must never exceed 5.5 V.
If it does, the IC enters a test mode.

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
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.

2

C-bus. The input selector

CAUTION

2

2

C-bus address 8A,

C-bus via EFS (enable

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
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.

TDA9144

2

C-bus subaddress

1996 Jan 17 6

Philips Semiconductors Preliminary specification

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

handbook, full pagewidth

SECAM

c

c

PAL



KILLED

NTSC

SECAM

KILLED

NTSC

KILLED

c

c



c



PAL



KILLED

c

c

TDA9144

PAL

c

c

Reference crystal Second crystal

PAL



KILLED

Fig.3 Search loop of the identification circuit.

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).

c

c

NTSC



KILLED

NTSCPAL

MGE040


The luminance to helper delay difference can be adjusted

2

C-bus, to achieve a correct fitting for the delay in the

by I
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 7

Philips Semiconductors Preliminary specification

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

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

2

subcarrier frequency present, and I

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.

TDA9144

dbook, full pagewidth

430

picture

lines

helper lines

helper lines

Fig.4 Possible PALplus picture displays.

1996 Jan 17 8

574

picture

lines

MBG903

Philips Semiconductors Preliminary specification

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

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
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
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

. These set-up

out

230 to 312 and 493 to 49
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

.

out

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.

TDA9144

(1)

when helper blanking is

HOB HBC SNR

0 X X OFF
10XON
110OFF
111ON

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

1996 Jan 17 9

HELPER

BLANKING

(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.

Philips Semiconductors Preliminary specification

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

white level reference

PALplus CVBS in

black

helper reference

level

reference

burst −U phase

10.83 µs

1.00

(V)

0.30

1.00

(V)

0.45

0.30

0.15

0

10.5 µs

0

EBU colour bar

max. modulated helper line

input

signals

1.00
(V)

0.30

0

1.00

0.80
(V)

0.45

0.30

0.15

0

handbook, full pagewidth

line 623

20 µs

10.5 µs

line 23

10 µs

32 µs

PALplus signalling bits

41 µs

51 µs

TDA9144

52 µs

output

signals

1.00
(V)

0.60

0.20

0

1.00
(V)

0.77

0.60

0.20

0

1.00
(V)

0.60

0.20

0

line 623

Y black

0.4 µs
black

(clamp level)

line 23

0.4 µs
PALplus signalling bits

line 22 reference line

212 LLC pulses

11.2 µs

black set-up

0.15 µs

white level reference

Y

(pin 12)

out

black set-up

black level offset

helper
set-up

demodulated

helper reference

mid-grey offset = A − B

helper set-up

(mid-grey)

151 LLC pulses

52 µs

(1)

22 µs30.8 µs

B

0.65 µs

1.00
(V)

0.60

0.20

1.00
(V)

0.60

0.20

(3)

A

(1) See Y output parameter Vos in Section “Characteristics”

800

mV

0

0

delay CLP to set up

(2)

686 mV

0.15 µs

(4)

demodulated helper

area limits

52 µs

baseband helper line with

black and helper set-up

EBU colour bar

with black set-up

0.65 µs

MBG904

(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”

Figures drawn when using subaddress 8A and an Y

of ∼440 ns.

delay

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

Fig.5 PALplus CVBS input and Y output signals.

1996 Jan 17 10

Philips Semiconductors Preliminary specification

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

(9)

black black black

(4)

luma

(5)

set-up helper

(4)

(4)

set-up helper luma

(4)

set-up helper luma

black black black

(4)

black black black

(4)

623a

LINE

23b

LINE

22

LINE

LINES

HELPER

(2)

(mV)

HELPER

SET-UP

(1)

TDA9144

BLACK

SET-UP

AMPL

LUMA

DELAY

COMB

4.43

(mV)

(V)

(b-w)

LINE

ECMB BPS 1 0 0 luma

ENABLE

(3)

TRAP

(8)

disabled bypass 0.8 200 400 helper

(6)

(7)

bypass 0.8 200 400 helper

ECMB BPS 1 0 0 luma black black luma

disabled

(3)

(3)

ECMB BPS 1 0 0 luma

(3)

ECMB BPS 1 0 0 luma

401101TB

5XX0XXTB

3 1 1 1 0 1 bypass

Table 2 PALplus modes for 50 Hz

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

100101TB

MODE MACP HD NRM FBA PAL

7XX1X0TB

6XX11XTB

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.

1996 Jan 17 11

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.

Philips Semiconductors Preliminary specification

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

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

2

by the I

C-bus.

Blanked/unblanked sync

2

By means of the I
signal Y

will be presented with or without its composite

out

C-bus bit BSY (blanked sync), output

sync part. At BSY = 0 the composite sync is present on
Y

. When activated, helper blanking takes place only

out

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

, independent of the

out

BSY condition.

Sync processor (ϕ

loop)

1

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

(6.875 MHz), provided that I2C-bus address 8A is

H

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.

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

TDA9144

2

C-bus protocol). The

time

1

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.

1996 Jan 17 12

Philips Semiconductors Preliminary specification

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

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

2

system via the I

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.

handbook, halfpage

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.

TDA9144

CONTROLLER

NORM COUNTER

TIMING

GENERATOR

MGE043

Fig.6 Block diagram of the vertical divider system.

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.

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 13

Philips Semiconductors Preliminary specification

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

handbook, full pagewidth

no_norm

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

LC < 488

on SYNC

if LC < 576

LC = 526 LC = 626

norm norm

NORM

else

NO

NORM

WAIT

FOR
RESET
PULSE

no_norm

on SYNC

if LC ≥ 576

NORM

TDA9144

LC < 488

COUNTCOUNT

near_norm near_norm

LC ≤ 525 LC ≤ 625

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

NEAR

NORM

LC < 522 LC < 622

NEAR

NORM

vertical frequency 60 Hz vertical frequency 50 Hz

Fig.7 State diagram of the vertical divider system.

on VSP if
622 < LC < 628
or on LC = 628

MGE042

1996 Jan 17 14

Philips Semiconductors Preliminary specification

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

handbook, full pagewidth

10 < NC < 26

22 < NC ≤ 27 0 ≤ NC < 12

NORM

NC = 26

NEAR

(1)

NORM

NC = 17

NC = 22

(RESET NC)

NC = 10
(RESET NC)

NC = 10

(RESET NC)

NC = 0

NO

NORM

NC = 12

TDA9144

NEAR

NORM

10 < NC < 17

norm test area near_norm test area

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

Fig.8 State diagram of the norm counter.

NC = 14

NEAR
NORM

0 < NC < 14

MGE041

1996 Jan 17 15

Philips Semiconductors Preliminary specification

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

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.

handbook, full pagewidth

ASC

VA

2nd FIELD 1st FIELD

625



(1)

2nd FIELD1st FIELD

312

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.

50 Hz

TDA9144

23

336

ASC

2nd FIELD 1st FIELD

525

ASC

VA

2nd FIELD1st FIELD

262

ASC

(1) See Vertical Section in “Characteristics”

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

60 Hz

17

280

MBG902

1996 Jan 17 16

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

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)

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

8A 10001X1X

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

Table 4 Input bytes

SUB

ADDRESS

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

MSB DATA BYTE LSB

D7 D6 D5 D4 D3 D2 D1 D0

) of 100 kHz.

SCL

Table 5 Output (status) bytes

OUTPUT

ADDRESS

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

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

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

(1)

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

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

D7 D6 D5 D4 D3 D2 D1 D0

1996 Jan 17 17

Philips Semiconductors Preliminary specification

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

INPUT SIGNALS
Table 6 Source select; note 1

INA INB SOURCE

0 0 CVBS
01YC
1−auto CVBS / YC

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

TB CONDITION

0 trap not bypassed
1 trap bypassed

Note

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

Table 11 Forced field frequency

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

Table 12 Output value I/O port

OPA LEVEL

0 LOW
1 HIGH

Table 13 Output value O port

OPB LEVEL

0 LOW
1 HIGH

Table 14 ϕ

loop control

1

TDA9144

Table 8 Comb filter enable; note 1

ECMB CONDITION

0 comb filter disabled
1 comb filter enabled

Note

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

Table 9 ϕ

FOA FOB MODE

0 0 auto
0 1 slow
1 − fast

Table 10 Crystal indication

XA XB CRYSTAL

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

time constant

1

POC CONDITION

0 ϕ
1 ϕ

Table 15 Forced standard; note 1

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

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

EFS CONDITION

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

loop closed

1

loop open

1

1996 Jan 17 18

Philips Semiconductors Preliminary specification

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

Table 17 External RGB clamp mode

ECL CONDITION

0 off; internal clamp pulse is used
1

Table 18 Forced RGB mode

FRGB CONDITION

0 YUV, when disabled via EFS
1 forced RGB

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

EFS FRGB F SELECTED INPUTS

00−YUV

− 1 − RGB

100YUV
101RGB

Table 20 Hue

FUNCTION ADDRESS DIGITAL NUMBER

Hue HU5 to HU0 000000 = −45°

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

Fast switch F

111111 = +45°

Table 24 PALplus helper demodulator active; note1

HD CONDITION

0off
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)

HOB HBC SNR BLANKING

0 −− off
10− on
110 off
111 on

Table 26 Blanked sync on Y

BSY CONDITION

0 unblanked sync; note 1
1 blanked sync

Note

1. Except for PALplus with black set-up.

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

TDA9144

out

Table 21 Line-locked clock active

LCA CONDITION

0 OPB/CLP mode
1 LLC/HA mode

Table 22 Forced wide window

FWW CONDITION

0 auto window mode
1 forced wide window

Table 23 Motion Adaptive Colour Plus; note 1

MACP CONDITION

0 internal 4.43 notch used
1

Note

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

1996 Jan 17 19

external MACP chrominance filtering used,

4.43 notch bypassed, black set-up 200 mV

Table 27 Luminance to helper delay control

YH2 to YH1 CONDITION

00 −20 ns
11 +25 ns

Table 28 Baseband delay line bypass; note 1

BPS CONDITION

0 no bypass
1 baseband delay line bypassed

Note

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

Table 29 Low power standby mode

LPS CONDITION

0 normal operation
1 low power standby

Philips Semiconductors Preliminary specification

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

Table 30 Enable MACROVISION gating

EMG CONDITION

0 disable gating
1 enable gating

Table 31 Luminance delay control

YD3 to YD0 CONDITION

0000 −280 ns

1111 +160 ns

OUTPUT SIGNALS
Table 32 Power-on reset

POR CONDITION

0 normal mode
1 power-down mode

Table 33 Field frequency indication

FSI CONDITION

050Hz
160Hz

Table 34 Input switch mode

YC CONDITION

0 CVBS mode
1 Y/C mode

Table 35 ϕ

SL CONDITION

0 not locked
1 locked

Table 36 Input value I/O port

lock indication

1

Table 37 Standard 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

Table 38 Fast blanking active

FBA CONDITION

0 no fast blanking detected
1 fast blanking detected

Table 39 Norm/no_norm indication in vertical divider

system

NRM CONDITION

0 no_norm or near_norm
1 norm

Table 40 Signal-to-noise ratio

SNR CONDITION

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

Table 41 Crystal indication read-out

SXA SXB CRYSTAL

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

TDA9144

IP LEVEL

0 LOW
1 HIGH

1996 Jan 17 20

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

LIMITING VALUES

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

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

CC

I

CC

P

tot

T

stg

T

amb

THERMAL CHARACTERISTICS

SYMBOL PARAMETER VALUE UNIT

R

th j-a

QUALITY SPECIFICATION

Quality level in accordance with
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

supply voltage −−9.0 V
supply current −−70 mA
total power dissipation −−630 mW
storage temperature −55 − +150 °C
operating ambient temperature −10 − +70 °C

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

“SNW-FQ-611-E”

“Quality Reference Handbook”

is applicable for ESD protection, human body model: ±3000 V,

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

1996 Jan 17 21

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

CHARACTERISTICS

=8V; T

V

CC

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply (pin 7)

V

CC

I

CC

P

tot

I

CC

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
V

i(p-p)

Z

i

C

i

I

i(bias)

CINPUT (PIN 25)
V

i(p-p)

Z

i

C

i

CVBS OUTPUT (PIN 22); ONLY FOR ADDRESS 8A
V

o(p-p)

Z

o

B bandwidth at −3dB C
V

tsl

Bias generator (pin 8)

V

D(DEC)

V

det(CC)

V

det(DEC)

I

L(DEC)

Subcarrier regeneration

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

amb

supply voltage 7.2 8.0 8.8 V
supply current 50 60 70 mA
total power dissipation 360 480 620 mW
low power supply current 12 16 22 mA

INPUT (PIN 26)

input voltage (peak-to-peak value) top sync-white − 1.0 1.43 V
input impedance 60 −−kΩ
input capacitance −−5pF
input bias current − 3.3 −µA

input burst voltage

− 0.3 0.6 V

(peak-to-peak value)
input impedance 60 −−kΩ
input capacitance −−5pF

output voltage (peak-to-peak value) top sync-white − 1.0 − V
output impedance −−500 Ω

=15pF 7 −−MHz

L

top-sync voltage level 2.2 2.8 3.4 V

digital supply voltage 4.8 5.0 5.2 V
POR detection level for power supply 5.7 6.0 6.3 V
POR detection level for DEC pin 4.0 4.3 4.6 V
current load on digital supply sum of pins 8, 11, 16, 17 −−2.0 mA

ENERAL; note 1

G
CR catching and holding range

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

ϕ phase shift for 80% deviation of

catching range

Z

i

input impedance

reference crystal and second crystal 0.80 1.00 1.20 kΩ

1996 Jan 17 22

−−5 deg

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

FSCOMB OUTPUT (PIN 23)
V

sub(p-p)

V

cen

V

cdis

I

sink

R

GND

ACC

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

comb enable voltage level 4.0 4.2 5.0 V
comb disable voltage level − 0.1 1.4 V
sink current to undo forced Y/C mode

of input switch
value of grounded resistor to undo

forced Y/C mode of input switch

ACC control range −20 − +6 dB
change of −(R−Y) and −(B−Y) signals

over range
colour killer treshold

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

kill/unkill hysteresis − 3 − dB

CL= 15 pF 150 200 300 mV

0.4 − 1.0 mA

4 − 10 kΩ

−−1dB

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

ENERAL

G

helper

(pin 12)

ratio of −(B−Y) to −(R−Y) standard colour bar 1.20 1.27 1.34

TC temperature coefficient of −(R−Y) and

−−0.1 %/K

−(B−Y) amplitude
spread of −(R−Y) to −(B−Y) ratio

−1 − +1 dB

between standards

V

−(R−Y)

output level of −(R−Y) output during

1.7 2.1 2.5 V

blanking level

V

−(B−Y)

output level of −(B−Y) output during

1.7 2.0 2.5 V

blanking level
B bandwidth at −3 dB 600 670 750 kHz
Z
∆V

o

CC

output impedance −−500 Ω

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

PAL/NTSC
V

−(R−Y)(p-p)

DEMODULATOR

−(R−Y) output voltage

standard colour bar 480 540 605 mV

(peak-to-peak value)
V

−(B−Y)(p-p)

−(B−Y) output voltage

standard colour bar 610 685 765 mV

(peak-to-peak value)
V

res(p-p)

V

res(p-p)

V

res(p-p)

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

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

4.4 and 3.6 MHz residue both outputs −−tbf mV

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

1996 Jan 17 23

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

PAL DEMODULATOR
V

R(p-p)

ϕ demodulator phase error −−5 deg
SECAM
V

−(R−Y)(p-p)

V

−(B−Y)(p-p)

f

os

S/N signal-to-noise ratio 0 to 1 MHz 40 −−dB
V

res(p-p)

f

pole

V

cal

NL non linearity −−3%

EMODULATED HELPER (PIN 12)

D
V

Y(p-p)

V

Y(p-p)

t

d

ϕ demodulator phase including
α

c(M/D)

THD total harmonic distortion in ACC −36 −−dB
t

Y

V

os

t

su

t

d

t

d

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

1

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

DEMODULATOR

−(R−Y) output voltage

standard colour bar 0.96 1.08 1.21 V

(peak-to-peak value)

−(B−Y) output voltage

standard colour bar 1.22 1.37 1.53 V

(peak-to-peak value)

black level offset frequency −−7 kHz

7.8 MHz to 9.4 MHz residue

−−30 mV

(peak-to-peak value)

pole frequency of de-emphasis 77 85 93 kHz

ratio of pole and zero frequency − 3 −

calibration voltage 345V

helper output voltage

PALplus limits 610 686 770 mV

(peak-to-peak value)

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

380 400 420 mV

line 23

group delay within passband −−10 ns

1

⁄2H error −−5 deg

crosstalk modulated helper to

0 to 1 MHz −36 −−dB

demodulated sign

4.43 MHz residue −36 −−dB

helper output timing to Y

out

offset demodulator mid-grey to

inserted mid-grey level

helper set-up width (363 LLC pulses)

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

−−10 ns

−−5mV

− 52.8 −µs

and start helper set-up

delay between mid-sync of input and

start helper set-up

delay between start black set-up and

YD3 to YD0 = 1011; note 4;

− 8.8 −µs

see Fig.5
only line 22 and 23 − 30.8 −µs

start helper set-up (212 LLC pulses)

Filters

UNING

T
V

tune

tuning voltage 1.5 3 6 V

1996 Jan 17 24

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

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

d(on)

t

d(off)

t

d(tun)

t

d(tun)

CHROMINANCE TRAP
f

o

B bandwidth at −3dB f

f

sc(sup)

CHROMINANCE BANDPASS
f

res

B bandwidth at −3dB f

CLOCHE FILTER
f

res

B bandwidth at −3 dB SECAM 241 268 295 kHz

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

= 3.6 MHz and 4.4 MHz;

f

sc

515 540 565 ns

TB = 1
delay time colour off 350 370 390 ns
delay time tuning range 15 steps YD3 to YD0; note 2 −280 − +160 ns
Y to helper delay tuning range 3 steps YH2 to YH1 −20 − +25 ns

notch frequency fsc= 3.6 MHz 3.53 3.58 3.63 MHz

= 4.4 MHz 4.37 4.43 4.49 MHz

f

sc

SECAM 4.23 4.29 4.35 MHz

Y/C and B/W mode not active

= 3.6 MHz 2.60 2.80 3.00 MHz

sc

= 4.4 MHz 3.20 3.50 3.80 MHz

f

sc

SECAM 2.90 3.15 3.50 MHz
subcarrier suppression 26 −−dB

resonant frequency fsc= 3.6 MHz 3.40 3.58 3.76 MHz

= 4.4 MHz 4.21 4.43 4.65 MHz

f

sc

= 3.6 MHz 1.05 1.20 1.35 MHz

sc

= 4.4 MHz 1.25 1.40 1.55 MHz

f

sc

resonant frequency SECAM 4.26 4.29 4.31 MHz

Sync input (pin 26)

IDEO INPUT

V
V

Y/CVBS(p-p)

sync pulse amplitude

35 300 600 mV

(peak-to-peak value)
slicing level 40 47 55 %

t

d

delay of sync pulse due to internal

0.2 0.3 0.4 µs

filter

N

th

noise detector threshold level 18 20 22 dB

H hysteresis 235dB
t

d

delay between internally separated

12 18.5 27 µs

vertical sync pulse and video signal

1996 Jan 17 25

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Horizontal section

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

OH

V

OL

I

sink

I

source

t

W(HA)

t

d

t

W

t

d

t

d

σ 6σ jitter ϕ
FIRST LOOP (ϕ1)

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

CC

f

CR

f

HR

φ static phase shift −−0.1 µs/kHz

OUTPUT (PIN 16); LLC/HA MODE

LLC
f

o

V

o(p-p)

V

o

t

d

HIGH level output voltage 4.0 5 5.5 V
LOW level output voltage − 0.2 0.4 V
sink current 2 −−mA
source current 2 −−mA
HA pulse width (32 LLC pulses) − 4.65 −µs
delay between middle of horizontal

sync pulse and middle of H

A

note 4 0.3 0.45 0.6 µs

CLP pulse width (25 LLC pulses) − 3.65 −µs
delay start CLP pulse to start black

set-up (33 LLC pulses + Y delay)
delay between middle of horizontal

HD = 1 or MACP = 1; YD3 to

− 5.35 −µs

YD0 = 1011; see Fig.5

note 4 3.0 3.2 3.4 µs
sync pulse and start of CLP pulse

in auto mode −−5ns

1

supply voltage dependence − 40 − Hz/V
catching range ±625 −−Hz
holding range −−±1.0 kHz

output frequency

440 × f

H

440 × f

H

output amplitude

50 Hz standard − 6.875 − MHz

60 Hz standard − 6.923 − MHz

0.25 −−V

(peak-to-peak value)
DC output voltage level − 2.5 V
delay between negative edge of LLC

CL=15pF 102040ns
and positive edge of HA pulse

Vertical section

ERTICAL OSCILLATOR

V
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

1996 Jan 17 26

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

VA OUTPUT (PIN 11); ECL = 0
V

OH

V

OL

I

sink

I

source

t

W(VA)

t

d

Z

o

Sandcastle output (pin 10)

V

o

I

sink

HORIZONTAL AND VERTICAL BLANKING
V

bl

I

source

I

ext

t

W(H)

t

d

CLAMPING PULSE
V

clamp

I

source

t

W(clamp)

t

d

HIGH level output voltage 4.0 5 5.5 V
LOW level output voltage − 0.2 0.4 V
sink current 2 −−mA
source current 2 −−mA
VA pulse width

2.5/f

H

3/f

H

delay between start of vertical sync

50 Hz standard − 160 −µs

60 Hz standard − 192 −µs

note 5; see Fig.9 − 35 −µs
pulse and positive edge of VA

output impedance ECL = 1 3 −−MΩ

zero level output voltage 0 0.5 1 V
sink current 0.5 0.7 0.9 mA

blanking voltage level 2.2 2.5 2.8 V
source current 0.5 0.7 0.9 mA
external current required to force the

1.0 − 3.0 mA

output to the blanking level
horizontal blanking pulse width (69 LLC pulses) − 10.0 −µs
delay between start of horizontal

(44 LLC pulses) − 6.4 −µs
blanking and start of clamping pulse

clamping voltage level 4.2 4.5 4.8 V
source current 0.5 0.7 0.9 mA
clamping pulse width (25 LLC pulses) − 3.6 −µs
delay between middle sync of input

note 4 3.0 3.2 3.4 µs
and start of clamping pulse

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)

Z

i

C

i

input voltage (peak-to-peak value) − 0.7 1 V
input impedance 3 −−MΩ
input capacitance −−5pF

UV INPUTS (PINS 3 AND 4 RESPECTIVELY); note 6
V

i(p-p)

V

i(p-p)

Z

i

C

i

U input voltage (peak-to-peak value) − 1.33 1.90 V
V input voltage (peak-to-peak value) − 1.05 1.50 V
input impedance (both inputs) 3 −−MΩ
input capacitance (both inputs) −−5pF

1996 Jan 17 27

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Y OUTPUT (PIN 12)
V

o(p-p)

V

o(p-p)

Z

o

V

o

S/N signal-to-noise ratio f = 0 to 5 MHz − 52 − dB
V

out

t

W(black)

t

d

V

os

G

v

UV OUTPUTS (PINS 14 AND 13); note 6
V

o(p-p)

V

o(p-p)

Z

o

V

o

G

v

GENERAL
V

diff

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

α

c

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

t

clamp

FAST SWITCH F(PIN 18)
V

IL

V

IH

t

d

U output voltage black-white − 1.00 − V
PALplus output voltage black-white − 0.80 − V
output impedance −−250 Ω
DC output voltage level black level 2.7 3.0 3.3 V

black set-up amplitude MACP = 1 or HD = 1 190 200 210 mV
black set-up width 363 LLC pulses − 52.8 −µs
delay between mid-sync of input and

start black set-up
offset voltage Y

to re-inserted

black

YD3 to YD0 = 1011; note 4;

− 8.8 −µs

see Fig.5

see Fig.5 −−10 mV
black

voltage gain

from Y/CVBS
from Y/CVBS

to Y

i

to Y

i

o
o

MACP = 1 or HD = 1 1.08 1.14 1.20

1.35 1.43 1.50

U output voltage (peak-to-peak value) − 1.33 1.90 V
V output voltage (peak-to-peak value) − 1.05 1.50 V
output impedance (both outputs) −−250 Ω
DC output voltage level 2.3 2.6 2.9 V
voltage gain

from U
from V

to U

in

to V

in

out

out

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

sync locked mixed RGB/YUV

via fast blanking

0.94 0.97 1.00

0.94 0.97 1.00

−−10 mV

mode

7 −−MHz

=15pF

C

L

crosstalk between RGB and UV
signals on UV

out

in

f=0to5MHz −−−50 dB

5 −−MHz

=15pF

C

L

internal Y clamping time constant − 10 − ms

LOW level input voltage UV switched on 0 − 0.5 V
HIGH level input voltage RGB switched on 0.9 − 3.0 V
switching delay between F and YUV −−20 ns

1996 Jan 17 28

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

EXTERNAL CLAMP INPUT (PIN 17)
V

IL

V

IH

t

W(clamp)

V

os(clamp)

Z

i

Colour matrix

G

v

Output and in/output port

LOW level input voltage (pin CLP) no clamping 0 − 0.6 V
HIGH level input voltage (pin CLP) clamping 2.4 − 5.5 V
clamping pulse width note 7 1.8 3.5 −µs
clamping offset voltage on UV outputs −−10 mV
input impedance ECL = 1 3 −−MΩ

voltage gain

from R to Y
from G to Y
from B to Y
from R to U
from G to U
from B to U
from R to V
from G to V
from B to V

out

out

out

out

out
out
out

out

out

0.41 0.43 0.45

0.80 0.84 0.88

0.15 0.16 0.17

0.41 0.43 0.45

0.80 0.84 0.88

1.21 1.27 1.33

0.95 1.00 1.05

0.80 0.84 0.88

0.15 0.16 0.17

PORT (PIN 16); OPB/CLP MODE

O
V

OH

V

OL

I

sink

I

source

HIGH level output voltage 4.0 5 5.5 V
LOW level output voltage − 0.2 0.4 V
sink current 100 −−µA

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

OH

V

OL

I

sink

V

IH

V

IL

HIGH level output voltage −−VCCV

LOW level output voltage − 0.2 0.4 V

sink current 2 −−mA

HIGH level input voltage 2.0 −−V

LOW level input voltage −−0.6 V

1996 Jan 17 29

Philips Semiconductors Preliminary specification

I2C-bus controlled, alignment-free PAL/NTSC/SECAM

TDA9144

decoder/sync processor with PALplus helper demodulator

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:

C

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
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.

M

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




1



2

C

O

+

------- ­C

L

1

-------------­2f

×

H

=18pF

L

1996 Jan 17 30

Philips Semiconductors Preliminary specification

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

TEST AND APPLICATION INFORMATION

5 V

nF

100

8

PC74HCU04

1234567

14 13 12 11 10 9

Ω

R G B F CLP/HA

75

Ω

75

Ω

75

Ω

75

100

100

100

nF

nF

nF

to TDA9151

LLC interface

kΩ

120

1nF

HA

O PORT/LLC LCC

out

U

out

V

out



MBG901

I/O PORT

TDA9144

handbook, full pagewidth

ADDR (CVBS)

Fscomb

Y/CVBS C

15 kΩ

82 kΩ

3.3

470

3.3

100

nF

100

Ω

75

TDA9144

Ω

75

nF

nF

nF

nF

GND

nF

100

nF

100

18

pF

18

pF

nF

100

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

12345678910111213141516

100

100

100

100

100

100

100

nF

Fig.10 Application circuit.

Ω

Ω

nF

nF

45678

nF

nF

µF

100

8 V

13 12 11 10 9

TDA4665

123

16 15 14

nF

100

240Ω

5V1

SDA SC VA Y

SCL

Pins 28 and 32 are sensitive to leakage currents.

Keep the analog and digital ground currents well separated

The decoupling capacitor between pin 8 and 9 must be placed as close to the IC as possible.

1996 Jan 17 31

Philips Semiconductors Preliminary specification

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

EQUIVALENT PIN CIRCUITS

PIN SYMBOL EQUIVALENT PIN CIRCUIT

1 −(R−Y)

2 −(B−Y)

100 Ω

0.2

mA

100 Ω

0.2

mA

1

MGE046

2

TDA9144

3U

in

MGE047

0.07 mA

100 Ω

3

MGE048

1996 Jan 17 32

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

4V

5 SCL

in

CLIN

DCT

4

100 Ω

MGE049

5

TDA9144

0.07 mA

6 SDA

7V

CC

8 DEC

MGE050

6

DATA

7

5 V

MGE051

MGE052

8

1996 Jan 17 33

MGE053

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

9 DGND

10 SC

9

MGE054

10

MGE055

TDA9144

11 VA

12 Y

out

100 Ω

0.5

mA

11

MGE056

12

MGE057

1996 Jan 17 34

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

13 V

14 U

out

out

100 Ω

0.5

mA

100 Ω

0.5

mA

13

MGE058

14

TDA9144

15 I/O PORT

16 O PORT/LLC

MGE059

15

MGE060

100 Ω

16

MGE061

1996 Jan 17 35

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

17 CLP/HA

17

MGE062

18 F

100 Ω

TDA9144

19 B
20 G
21 R

18

MGE064

0 to ±60 µA0 to ±60 µA 0 to ±60 µA

CLP

19

100 Ω

20

100 Ω

21

100 Ω

MGE063

1996 Jan 17 36

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

22 ADDR (CVBS)

100 Ω

0.5

mA

MGE065

23 Fscomb

TDA9144

22

24 HPLL

25 C

100 Ω

MGE066

4 V

4 V

100 Ω

25

1 MΩ

23

24

MGE067

1996 Jan 17 37

MGE068

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

26 Y/CVBS

1 kΩ

26

100 Ω

3.5
µA

MGE069

27 AGND analog ground
28 FILT

ref

4 V

INIT

28

TDA9144

29 CPLL

MGE071

29

MGE072

1996 Jan 17 38

Philips Semiconductors Preliminary specification

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

PIN SYMBOL EQUIVALENT PIN CIRCUIT

30 XTAL

30

MGE073

31

MGE074

31 XTAL2

1 kΩ

0.2
mA

1 kΩ

0.2
mA

TDA9144

32 SEC

ref

32

CAL

MGE075

1996 Jan 17 39

Philips Semiconductors Preliminary specification

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

PACKAGE OUTLINE

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

D

seating plane

L

Z

32

e

b

17

A

A

1

w M

b

1

TDA9144

SOT232-1

M

E

2

A

c

(e )

M

1

H

pin 1 index

1

0 5 10 mm

scale

DIMENSIONS (mm are the original dimensions)

A

A

A

UNIT b

Note

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

mm

OUTLINE
VERSION

SOT232-1

max.

4.7 0.51 3.8

12

min.

max.

IEC JEDEC EIAJ

1.3

0.8

b

1

0.53

0.40

REFERENCES

0.32

0.23

cEe M

(1) (1)

D

29.4

28.5

9.1

8.7

E

16

(1)

Z

L

3.2

2.8

EUROPEAN

PROJECTION

M

10.7

10.2

E

12.2

10.5

e

1

w

H

0.181.778 10.16

ISSUE DATE

92-11-17
95-02-04

max.

1.6

1996 Jan 17 40

Philips Semiconductors Preliminary specification

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

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”

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

DEFINITIONS

(order code 9398 652 90011).

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
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.

TDA9144

). If the

stg max

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.

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.

2

PURCHASE OF PHILIPS I

C COMPONENTS

2

Purchase of Philips I
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 41

C components conveys a license under the Philips’ I2C patent to use the

Philips Semiconductors Preliminary specification

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

NOTES

TDA9144

1996 Jan 17 42

Philips Semiconductors Preliminary specification

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

NOTES

TDA9144

1996 Jan 17 43

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