Preliminary specification
Supersedes data of 1995 Sep 19
File under Integrated Circuits, IC22
1996 Jul 08
Page 2
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
FEATURES
• CMOS 5 V device
• Digital PAL/NTSC/SECAM encoder
• System pixel frequency 13.5 MHz
• Accepts MPEG decoded data on 8-bit wide input port.
Input data format Cb, Y, Cr etc. or Y and Cb, Cr on
16 lines (
“CCIR 656”
)
• Three DACs for CVBS, Y and C operating at 27 MHz
with 10-bit resolution
• Three DACs for RGB operating at 27 MHz with 9-bit
resolution, RGB sync on CVBS and Y
• CVBS, Y, C and RGB output simultaneously
• Closed captioning and teletext encoding including
sequencer and filter
• On-chip YUV to RGB matrix
2
• Fast I
C-bus control port (400 kHz)
• Encoder can be master or slave
• Programmable horizontal and vertical input
synchronization phase
• Programmable horizontal sync output phase
• Internal Colour Bar Generator (CBG)
• Overlay with Look-Up Tables (LUTs) 8 × 3 bytes
• Macrovision Pay-per-View protection system as option,
also used for RGB output
This applies to SAA7183 only. The device is protected
by USA patent numbers 461603, 4577216 and 4819098
and other intellectual property rights.
Use of the Macrovision anti-copy process in the device
is licensed for non-commercial home use only. Reverse
engineering or disassembly is prohibited. Please
contact your nearest Philips Semiconductor sales office
for more information
• Controlled rise/fall times of output syncs and blanking
• Down-mode of DACs
• PLCC84 package.
GENERAL DESCRIPTION
The SAA7182; SAA7183 encodes digital YUV video data
to an NTSC, PAL, SECAM CVBS or S-Video signal and
also RGB.
The circuit accepts CCIR compatible YUV data with
720 active pixels per line in 4:2:2 multiplexed formats,
for example MPEG decoded data. It includes a sync/clock
generator and on-chip Digital-to-Analog Converters
(DACs).
The circuit is compatible to the DIG-TV2 chip family.
QUICK REFERENCE DATA
SYMBOLPARAMETERMIN.TYP.MAX.UNIT
V
V
I
DDA
I
DDD
V
V
DDA
DDD
i
o(p-p)
analog supply voltage4.755.05.25V
digital supply voltage4.755.05.25V
analog supply current−90110mA
digital supply current−220250mA
input signal voltage levelsTTL compatible
analog output signal voltages Y, C, CVBS and RGB
−2−V
without load (peak-to-peak value)
R
L
load resistance80−−Ω
ILELF integral linearity error−−±2LSB
DLELF differential linearity error−−±1LSB
T
RESET1Reset input, active LOW. After reset is applied, all digital I/Os are in input mode.
The I2C-bus receiver waits for the START condition.
n.c.2not connected
V
SSD1
SA4The I
V
DDD1
OVL26
OVL08
KEY9Key input for OVL. When HIGH it selects OVL input.
DP010
DP111
DP212
DP313
V
DDD2
V
SSD2
DP416
DP517
DP618
DP719
TTXRQ20Teletext request output, indicating when the bitstream is valid.
TTX21Teletext bitstream input.
V
DDD3
n.c.23not connected
V
SSD3
MP725Upper 4 bits of MPEG port. It is an input for
MP626
MP527
MP428
V
DDD4
V
SSD4
MP331Lower 4 bits of MPEG port. It is an input for
MP232
MP133
MP034
RCV135Raster Control 1 for video port. This pin receives/provides a VS/FS/FSEQ signal.
RCV236Raster Control 2 for video port. This pin provides an HS pulse of programmable length or
RTCI37Real Time Control Input. If the LLC clock is provided by an
3-bit overlay data input. This is the index for the internal look-up table.OVL17
Lower 4 bits of the data port. Input for multiplexed Cb, Cr data if 16 line input mode is used.
14digital supply voltage 2
15digital ground 2
Upper 4 bits of the data port. Input for multiplexed Cb, Cr data if 16 line input mode is used.
22digital supply voltage 3
24digital ground 3
input for Y data only, if 16 line input mode is used.
29digital supply voltage 4
30digital ground 4
input for Y data only, if 16 line input mode is used.
receives an HS pulse.
should be connected to the RTCO pin of the respective decoder to improve the signal quality.
“CCIR 656”
“CCIR 656”
style multiplexed Cb, Y, Cr data, or
style multiplexed Cb, Y, Cr data, or
SAA7111
or
SAA7151B
, RTCI
1996 Jul 084
Page 5
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
SYMBOLPINDESCRIPTION
V
DDD5
V
SSD5
n.c.40not connected
V
DDD6
V
SSD6
n.c.43not connected
XT ALI44Crystal oscillator input (from crystal). If the oscillator is not used, this pin should be connected
XTALO45Crystal oscillator output (to crystal).
n.c.46not connected
CREF47Clock Reference signal. This is the clock qualifier for DIG-TV2 compatible signals.
LLC48Line-Locked Clock. This is the 27 MHz master clock for the encoder. The I/O direction is set
V
DDD7
CDIR50Clock direction. If the CDIR input is HIGH, the circuit receives a clock and optional CREF
V
SSD7
V
refL1
V
refH1
V
DDA1
BLUE55Analog output of the BLUE component.
n.c.56not connected
V
DDA2
GREEN58Analog output of the GREEN component.
n.c.59not connected
V
DDA3
RED61Analog output of the RED component.
n.c.62not connected
I
RGB
V
DDA4
n.c.65not connected
n.c.66not connected
V
SSA
I
Y/C/CVBS
CHROMA69Analog output of the chrominance signal.
V
DDA5
Y71Analog output of the luminance signal.
V
DDA6
CVBS73Analog output of the CVBS signal.
38digital supply voltage 5
39digital ground 5
41digital supply voltage 6
42digital ground 6
to ground.
by the CDIR pin.
49digital supply voltage 7
signal, otherwise if CDIR is LOW CREF and LLC are generated by the internal crystal
oscillator.
51digital ground 7
52Lower reference voltage 1 input for the RGB DACs, connect to V
SSA
.
53Upper reference voltage 1 input for the RGB DACs, connect via 100 nF capacitor to V
54Analog supply voltage 1 for the RGB DACs.
57Analog supply voltage 2 for the RGB DACs.
60Analog supply voltage 3 for the RGB DACs.
63Current input for RGB amplifiers, connected via 15 kΩ resistor to V
DDA
.
64Analog supply voltage 4 for the Y/C/CVBS DACs.
67Analog ground for the DACs.
68Current input for the Y/C/CVBS amplifiers, connected via 15 kΩ resistor to V
DDA
.
70Analog supply voltage 5 for the Y/C/CVBS DACs.
72Analog supply voltage 6 for the Y/C/CVBS DACs.
SSA.
1996 Jul 085
Page 6
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
SYMBOLPINDESCRIPTION
V
DDA7
V
refH2
V
refL2
AP77Test pin. Connected to digital ground for normal operation.
SP78Test pin. Connected to digital ground for normal operation.
V
SSD8
V
DDD8
V
SSD9
V
DDD9
SCL83I
SDA84I
74Analog supply voltage 6 for the Y/C/CVBS DACs.
75Upper reference voltage 2 input for the Y/C/CVBS DACs, connected via 100 nF capacitor to
V
SSA.
76Lower reference voltage 2 input for the Y/C/CVBS DACs, connect to V
SSA
.
79digital ground 8
80digital supply voltage 8
81digital ground 9
82digital supply voltage 9
2
C-bus serial clock input.
2
C-bus serial data input/output.
1996 Jul 086
Page 7
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
handbook, full pagewidth
DP1
11
DP0
10
KEY
9
OVL0
8
OVL1
7
OVL2
6
DDD1
V
5
SA
4
SSD1
V
3
n.c.
2
RESET
1
SDA
84
DDD9VSSD9VDDD8VSSD8
SCL
V
83
82
81
AP
77
refL2VrefH2
V
76
75
SP
80
79
78
DP3
V
DDD2
V
SSD2
DP4
DP5
DP6
DP7
TTXRQ
TTX
V
DDD3
n.c.
V
SSD3
MP7
MP6
MP5
MP4
V
DDD4
V
SSD4
MP3
MP2
12DP2
13
14
15
16
17
18
19
20
21
74
73
72
71
70
69
68
67
66
65
V
DDA7
CVBS
V
DDA6
Y
V
DDA5
CHROMA
I
Y/C/CVBS
V
SSA
n.c.
n.c.
SAA7182
22
23
24
25
26
27
28
29
30
31
32
SAA7183
64
63
62
61
60
59
58
57
56
55
54
V
DDA4
I
RGB
n.c.
RED
V
DDA3
n.c.
GREEN
V
DDA2
n.c.
BLUE
V
DDA1
33
34
35
36
37
38
39
40
41
42
MP1
MP0
RCV1
RCV2
RTCI
DDD5
V
SSD5
V
n.c.
DDD6
V
SSD6
V
Fig.2 Pin configuration.
1996 Jul 087
43
n.c.
44
XTALI
45
XTALO
46
n.c.
47
CREF
48
LLC
49
DDD7
V
50
CDIR
51
SSD7
V
52
refL1
V
53
refH1
V
MGB697
Page 8
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
FUNCTIONAL DESCRIPTION
The digital video encoder (EURO-DENC) encodes digital
luminance and colour difference signals into analog CVBS
and simultaneously S-Video signals. NTSC-M, PAL B/G
and SECAM standards and sub-standards are supported.
Both interlaced and non-interlaced operation is possible
for all standards.
In addition to RED, GREEN and BLUE converted
components, the dematrixed YUV input is available on
three separate analog outputs.
The basic encoder function consists of subcarrier
generation and colour modulation also insertion of
synchronization signals. Luminance and chrominance
signals are filtered in accordance with the standard
requirements of RS-170-A and
For ease of analog post filtering the signals are twice
oversampled with respect to the pixel clock before
digital-to-analog conversion.
For total filter transfer characteristics see
Figs 3, 4, 5, 6, 7 and 8. The DACs for Y, C and CVBS are
realized with full 10-bit resolution, DACs for RGB are with
9-bit resolution.
The MPEG port (MP) accept 8 lines multiplexed Cb-Y-Cr
data.
The 8-bit multiplexed Cb-Y-Cr formats are
(D1 format) compatible, but the SAV, EAV etc. codes are
not decoded.
Alternatively, 8-bits Y on MP port and 8-bit multiplexed Cb,
Cr on DP port can be chosen as input.
A crystal-stable master clock (LLC) of 27 MHz, which is
twice the CCIR line-locked pixel clock of 13.5 MHz, needs
to be supplied externally. Optionally, a crystal oscillator
input/output pair of pins and an on-chip clock driver is
provided.
It is also possible to connect a Philips Digital Video
Decoder (SAA7111 or SAA7151B) in conjunction with a
CREF clock qualifier to EURO-DENC. Via RTCI pin
connected to RTCO of a decoder, information concerning
actual subcarrier, PAL-ID (see
definite subcarrier phase can be inserted.
“CCIR 624”
“data sheet SAA7111”
.
“CCIR 656”
)
European teletext encoding is supported if an appropriate
teletext bitstream is applied to the TTX pin.
The IC also contains Closed Caption and Extended Data
Services Encoding (Line 21), and supports anti-taping
signal generation in accordance with Macrovision; it also
supports overlay via KEY and three control bits by a 24 × 8
LUT.
A number of possibilities are provided for setting of
different video parameters such as:
Black and blanking level control
Colour subcarrier frequency
Variable burst amplitude etc.
During reset (
all digital I/O stages are set to input mode. A reset forces
the I2C-bus interface to abort any running bus transfer and
sets register 3A to 03H, register 61 to 06H and
registers 6BH and 6EH to 00H. All other control registers
are not influenced by a reset.
Data manager
In the data manager, real time arbitration on the data
stream to be encoded is performed.
Depending on the polarity of pin KEY, the MP input
(or MP/DP input) or OVL input are selected to be encoded
to CVBS and Y/C signals, and output as RGB.
KEY controls OVL entries of a programmable LUT for
encoded signals and for RGB output. The common KEY
switching signal can be disabled by software for the
signals to be encoded (Y, C and CVBS), such that OVL will
appear on RGB outputs, but not on Y, C and CVBS.
OVL input under control of KEY can be also used to insert
decoded teletext information or other on-screen data.
Optionally, the OVL colour LUTs located in this block, can
be read out in a pre-defined sequence (8 steps per active
video line), achieving, for example, a colour bar test
pattern generator without need for an external data
source. The colour bar function is only under software
control.
RESET = LOW) and after reset is released,
The EURO-DENC synthesizes all necessary internal
signals, colour subcarrier frequency, and synchronization
signals, from that clock. The encoder is always timing
master for the MPEG port (MP), but it can additionally be
configured as slave with respect to the RCV trigger inputs.
1996 Jul 088
Page 9
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Encoder
V
IDEO PATH
The encoder generates out of Y, U and V baseband
signals luminance and colour subcarrier output signals,
suitable for use as CVBS or separate Y and C signals.
Luminance is modified in gain and in offset (latter
programmable in a certain range to enable different black
level set-ups). After having been inserted a fixed
synchronization level, in accordance with standard
composite synchronization schemes, and blanking level,
programmable also in a certain range to allow for
manipulations with Macrovision anti-taping, additional
insertion of AGC super-white pulses, programmable in
height, is supported.
In order to enable easy analog post filtering, luminance is
interpolated from 13.5 MHz data rate to 27 MHz data rate,
providing luminance in 10-bit resolution. This filter is also
used to define smoothed transients for synchronization
pulses and blanking period. For transfer characteristic of
the luminance interpolation filter see Figs 5 and 6.
Chrominance is modified in gain (programmable
separately for U and V), standard dependent burst is
inserted, before baseband colour signals are interpolated
from 6.75 MHz data rate to 27 MHz data rate. One of the
interpolation stages can be bypassed, thus providing a
higher colour bandwidth, which can be made use of for Y/C
output. For transfer characteristics of the chrominance
interpolation filter see Figs 3 and 4.
The amplitude of inserted burst is programmable in a
certain range, suitable for standard signals and for special
effects. Behind the succeeding quadrature modulator,
colour in 10-bit resolution is provided on subcarrier.
The numeric ratio between Y and C outputs is in
accordance with set standards.
C
LOSED CAPTION ENCODER
Using this circuit, data in accordance with the specification
of Closed Caption or Extended Data Service, delivered by
the control interface, can be encoded (Line 21). Two
dedicated pairs of bytes (two bytes per field), each pair
preceded by run-in clocks and framing code, are possible.
The actual line number where data is to be encoded in, can
be modified in a certain range.
Data clock frequency is in accordance with definition for
NTSC-M standard 32 times horizontal line frequency.
Data LOW at the output of the DACs corresponds to 0 IRE,
data HIGH at the output of the DACs corresponds to
approximately 50 IRE.
It is also possible to encode Closed Caption Data for 50 Hz
field frequencies at 32 times horizontal line frequency.
NTI-TAPING (SAA7183 ONLY)
A
For more information contact your nearest Philips
Semiconductors sales office.
RGB processor
This block contains a dematrix in order to produce RED,
GREEN and BLUE signals to be fed to a SCART plug.
Before Y, Cb, Cr signals are dematrixed, 2 times
oversampling for luminance and 4 times oversampling for
colour difference signals is performed. For transfer curves
of luminance and colour difference components of RGB
see Figs 7 and 8.
SECAM processor
SECAM specific pre-processing is achieved in this block
by a pre-emphasis of colour difference signals (for gain
and phase see Figs 9 and 10.
ELETEXT INSERTION AND ENCODING
T
Pin TTX receives a teletext bitstream sampled at the LLC
clock, each teletext bit is carried by four or three LLC
samples.
Phase variant interpolation is achieved on this bitstream in
the internal teletext encoder, providing sufficient small
phase jitter on the output text lines.
TTXRQ provides a fully programmable request signal to
the teletext source, indicating the insertion period of
bitstream at lines selectable independently for both fields.
The internal insertion window for text is set to 360 teletext
bits including clock run-in bits. For protocol and timing see
Fig.17.
1996 Jul 089
A baseband frequency modulator with a reference
frequency shifted from 4.286 MHz to DC carries out
SECAM modulation in accordance with appropriate
standard or optionally wide clipping limits.
After the HF pre-emphasis, also applied on a DC reference
carrier (anti-Cloche filter; see Figs 11 and 12), line-by-line
sequential carriers with black reference of 4.25 MHz (Db)
and 4.40625 MHz (Dr) are generated using specified
values for FSC programming bytes.
Alternating phase reset in accordance with SECAM
standard is carried out automatically. During vertical
blanking the so-called bottle pulses are not provided.
Page 10
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Output interface/DACs
In the output interface encoded both Y and C signals are
converted from digital-to-analog in 10-bit resolution. Y and
C signals are also combined to a 10-bit CVBS signal.
The CVBS output occurs with the same processing delay
as the Y and C outputs. Absolute amplitudes at the input
of the DAC for CVBS is reduced by15⁄16 with respect to Y
and C DACs to make maximum use of conversion ranges.
RED, GREEN and BLUE signals are also converted from
digital-to-analog, each providing a 9-bit resolution.
Outputs of the DACs can be set together in two groups via
software control to minimum output voltage for either
purpose.
Synchronization
Synchronization of the EURO-DENC is able to operate in
two modes; slave mode and master mode.
In the slave mode, the circuit accepts synchronization
pulses at the bidirectional RCV1 port. The timing and
trigger behaviour related to RCV1 can be influenced by
programming the polarity and on-chip delay of RCV1.
Active slope of RCV1 defines the vertical phase and
optionally the odd/even and colour frame phase to be
initialized, it can be also used to set the horizontal phase.
If the horizontal phase is not be influenced by RCV1, a
horizontal pulse needs to be supplied at the RCV2 pin.
Timing and trigger behaviour can also be influenced for
RCV2.
If there are missing pulses at RCV1 and/or RCV2, the time
base of EURO-DENC runs free, thus an arbitrary number
of synchronization slopes may miss, but no additional
pulses (such with wrong phase) must occur.
If the vertical and horizontal phase is derived from RCV1,
RCV2 can be used for horizontal or composite blanking
input or output.
On the RCV2 port, the IC can provide a horizontal pulse
with programmable start and stop phase; this pulse can be
inhibited in the vertical blanking period to build up, for
example, a composite blanking signal.
The polarity of both RCV1 and RCV2 is selectable by
software control.
Field length is in accordance with 50 Hz or 60 Hz
standards, including non-interlaced options; start and end
of its active part can be programmed. The active part of a
field always starts at the beginning of a line, if the standard
blanking option SBLBN is not set.
2
C-bus interface
I
The I2C-bus interface is a standard slave transceiver,
supporting 7-bit slave addresses and 400 kbits/s
guaranteed transfer rate. It uses 8-bit subaddressing with
an auto-increment function. All registers are write only,
except one readable status byte.
Two I2C-bus slave addresses are selected:
88H: LOW at pin 4
8CH: HIGH at pin 4.
Input levels and formats
EURO-DENC expects digital Y, Cb, Cr data with levels
(digital codes) in accordance with
For C and CVBS outputs, deviating amplitudes of the
colour difference signals can be compensated by
independent gain control setting, while gain for luminance
is set to predefined values, distinguishable for 7.5 IRE
set-up or without set-up.
For RGB outputs fixed amplification in accordance with
“CCIR 601”
Reference levels are measured with a colour bar,
100% white, 100% amplitude and 100% saturation.
is provided.
“CCIR 601”
.
In the master mode, the time base of the circuit
continuously runs free. On the RCV1 port, the IC can
output:
• A Vertical Sync signal (VS) with 3 or 2.5 lines duration,
or
• An ODD/EVEN signal which is LOW in odd fields, or
• A field sequence signal (FSEQ) which is HIGH in the first
Table 18 Subaddress 63 to 66 (four bytes to program subcarrier frequency)
DATA BYTEDESCRIPTIONCONDITIONSREMARKS
FSC0 to FSC3 f
= subcarrier frequency
fsc
(in multiples of line
frequency);
f
= clock frequency (in
llc
FSCround
=
see note 1
f
32
fsc
2
×
------- f
llc
FSC3 = most significant byte
FSC0 = least significant byte
multiples of line frequency)
Note
1. Examples:
a) NTSC-M: f
b) PAL-B/G: f
c) SECAM: f
= 227.5, f
fsc
= 283.7516, f
fsc
= 274.304, f
fsc
= 1716 → FSC = 569408543 (21F07C1FH).
llc
= 1728 → FSC = 705268427 (2A098ACBH).
llc
= 1728 → FSC = 681786290 (28A33BB2H).
llc
1996 Jul 0818
Page 19
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Table 19 Subaddress 67 to 6A
DATA BYTE
L21O0first byte of captioning data, odd field
L21O1second byte of captioning data, odd field
L21E0first byte of extended data, even field
L21E1second byte of extended data, even field
Note
1. LSBs of the respective bytes are encoded immediately after run-in and framing code, the MSBs of the respective
bytes have to carry the parity bit, in accordance with the definition of Line 21 encoding format.
Table 20 Subaddress 6B
DATA BYTELOGIC LEVELDESCRIPTION
PRCV20polarity of RCV2 as output is active HIGH, rising edge is taken when input; default
ORCV20pin RCV2 is switched to input; default after reset
CBLF0if ORCV2 = HIGH, pin RCV2 provides an HREF signal (Horizontal Reference Pulse
(1)
DESCRIPTION
after reset
1polarity of RCV2 as output is active LOW, falling edge is taken when input
1pin RCV2 is switched to output
that is defined by RCV2S and RCV2E, also during vertical blanking Interval); default
after reset
if ORCV2 = LOW, signal input to RCV2 is used for horizontal synchronization only
(if TRCV2 = 1); default after reset
1if ORCV2 = HIGH, pin RCV2 provides a ‘Composite-Blanking-Not’ signal, for
example a reference pulse that is defined by RCV2S and RCV2E, excluding Vertical
Blanking Interval, which is defined by FAL and LAL (PRCV2 must be LOW)
if ORCV2 = LOW, signal input to RCV2 is used for horizontal synchronization
(if TRCV2 = 1) and as an internal blanking signal
PRCV10polarity of RCV1 as output is active HIGH, rising edge is taken when input,
respectively; default after reset
1polarity of RCV1 as output is active LOW, falling edge is taken when input,
respectively
ORCV10pin RCV1 is switched to input; default after reset
1pin RCV1 is switched to output
TRCV20horizontal synchronization is taken from RCV1 port; default after reset
1horizontal synchronization is taken from RCV2 port
SRCV1−defines signal type on pin RCV1; see Table 21
1996 Jul 0819
Page 20
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Table 21 Logic levels and function of SRCV1
DATA BYTE
SRCV11SRCV10
00VSVSvertical sync each field; default after reset
01FSFSframe sync (odd/even)
10FSEQFSEQfield sequence, vertical sync every fourth field
11not applicablenot applicable −
Table 22 Subaddress 6C, 6D
DATA BYTEDESCRIPTION
HTRIGsets the horizontal trigger phase related to signal on RCV1 or RCV2 input
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
increasing HTRIG decreases delays of all internally generated timing signals
reference mark: analog output horizontal sync (leading slope) coincides with active edge of RCV
used for triggering at HTRIG = 049H (054H)
Table 23 Subaddress 6D
DATA BYTELOGIC LEVELDESCRIPTION
VTRIG−sets the vertical trigger phase related to signal on RCV1 input
increasing VTRIG decreases delays of all internally generated timing signals,
measured in half lines
variation range of VTRIG=0to31(1FH)
Table 24 Subaddress 6E
DATA BYTELOGIC LEVELDESCRIPTION
SBLBN0vertical blanking is defined by programming of FAL and LAL; default after reset
1vertical blanking is forced in accordance with
PHRES−selects the phase reset mode of the colour subcarrier generator; see Table 25
FLC−field length control; see Table 26
Table 25 Logic levels and function of PHRES
DATA BYTE
FUNCTION
PHRES1PHRES0
00no reset or reset via RTCI from SAA7111 if bit RTCE = 1; default after reset
01reset every two lines or SECAM-specific if bit SECAM = 1
10reset every eight fields
11reset every four fields
1996 Jul 0820
“CCIR 624”
(50 Hz) or RS170A (60 Hz)
Page 21
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Table 26 Logic levels and function of FLC
DATA BYTE
FLC1FLC0
00interlaced 312.5 lines/field at 50 Hz, 262.5 lines/field at 60 Hz; default after reset
01non-interlaced 312 lines/field at 50 Hz, 262 lines/field at 60 Hz
10non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
11non-interlaced 313 lines/field at 50 Hz, 263 lines/field at 60 Hz
Table 27 Subaddress 6F
DATA BYTELOGIC LEVELDESCRIPTION
CCEN−enables individual line 21 encoding; see Table 28
TTXEN0disables teletext insertion
1enables teletext insertion
SCCLN−selects the actual line, where closed caption or extended data are encoded
line = (SCCLN + 4) for M-systems
line = (SCCLN + 1) for other systems
Table 28 Logic levels and function of CCEN
DATA BYTE
CCEN1CCEN0
00Line 21 encoding off
01enables encoding in field 1 (odd)
10enables encoding in field 2 (even)
11enables encoding in both fields
FUNCTION
FUNCTION
Table 29 Subaddress 70 to 72
DATA BYTEDESCRIPTION
RCV2Sstart of output signal on RCV2 pin
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
first active pixel at analog outputs (corresponding input pixel coinciding with RCV2) at
RCV2S = 0F2H (110H)
RCV2Eend of output signal on RCV2 pin
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
last active pixel at analog outputs (corresponding input pixel coinciding with RCV2) at
RCV2E = 67CH (68AH)
1996 Jul 0821
Page 22
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Table 30 Subaddress 73 to 75
DATA BYTEDESCRIPTION
TTXHSstart of signal on pin TTXRQ (standard for 50 Hz field rate = 13FH)
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
TTXHEend of signal on pin TTXRQ (standard for 50 Hz field rate = TTXHS + 1402 = 6B9H)
values above 1715 (FISE = 1) or 1727 (FISE = 0) are not allowed
Table 31 Subaddress 76, 77 and 7C
DATA BYTEDESCRIPTION
TTXOVSfirst line of occurrence of signal on pin TTXRQ in odd field
TTXOVElast line of occurrence of signal on pin TTXRQ in odd field
Table 32 Subaddress 78, 79 and 7C
DATA BYTEDESCRIPTION
TTXEVSfirst line of occurrence of signal on pin TTXRQ in even field
TTXEVElast line of occurrence of signal on pin TTXRQ in even field
Table 33 Subaddress 7A to 7C
DATA BYTEDESCRIPTION
FALfirst active line = FAL + 4 for M-systems, = FAL + 1 for other systems, measured in lines
FAL = 0 coincides with the first field synchronization pulse
LALlast active line = LAL + 3 for M-systems, = LAL for other system, measured in lines
LAL = 0 coincides with the first field synchronization pulse
UBADDRESSES
S
In subaddresses 5B, 5C, 5D, 5E and 62 all IRE values are rounded up.
HIGH level output voltage
(except LLC, SDA, and XTALO)
HIGH level output voltage (LLC)note 22.6V
2
C-bus; SDA and SCL
I
V
IL
V
IH
I
I
V
OL
I
O
LOW level input voltage−0.5+1.5V
HIGH level input voltage3.0V
input currentVI= LOW or HIGH−10+10µA
LOW level output voltage (SDA)IOL=3mA−0.4V
output currentduring acknowledge3−mA
Clock timing (LLC)
T
LLC
cycle timenote 33441ns
δduty factor t
t
r
t
f
rise timenote 3−5ns
fall timenote 3−6ns
Input timing
t
SU
input data set-up time (any other except
CDIR, SCL, SDA, RESET, AP and SP)
t
HD
input data hold time (any other except
CDIR, SCL, SDA, RESET, AP and SP)
HIGH/TLLC
note 200.6V
note 22.4V
DDD
DDD
DDD
+ 0.5 V
+ 0.5 V
+ 0.5 V
note 44060%
6−ns
3−ns
1996 Jul 0829
Page 30
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
Crystal oscillator
f
n
∆f/f
n
CRYSTAL SPECIFICATION
T
amb
C
L
R
S
C
1
C
0
Data and reference signal output timing
C
L
t
OH
t
OD
CHROMA, Y, CVBS and RGB outputs
V
o(p-p)
R
I
R
L
Boutput signal bandwidth of DACs−3dB10−MHz
ILELF integral linearity error of DACs−±2LSB
DLELF differential linearity error of DACs−±1LSB
nominal frequency (usually 27 MHz)3rd harmonic−30MHz
permissible deviation of nominal frequencynote 5−50+5010
−6
operating ambient temperature070°C
load capacitance8−pF
series resistance−80Ω
motional capacitance (typical)1.5 −20%1.5 +20%fF
parallel capacitance (typical)3.5 −20%3.5 +20%pF
output load capacitance7.540pF
output hold time4−ns
output delay time−25ns
output signal voltage (peak-to-peak value)note 61.92.1V
internal serial resistance1835Ω
output load resistance80−Ω
Notes
1. At maximum supply voltage with highly active input signals.
2. The levels have to be measured with load circuits of 1.2 kΩ to 3.0 V (standard TTL load) and CL= 25 pF.
3. The data is for both input and output direction.
4. With LLC in input mode. In output mode, with a crystal connected to XTALO/XTALI duty factor is typically 50%.
5. If an internal oscillator is used, crystal deviation of nominal frequency is directly proportional to the deviation of
subcarrier frequency and line/field frequency.
6. For full digital range, without load, V
= 5.0 V. The typical voltage swing is 2.0 V, the typical minimum output
DDA
voltage (digital zero at DAC) is 0.2 V.
1996 Jul 0830
Page 31
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
T
t
d
LLC
t
f
T
LLC
t
f
not valid
not valid
2.6 V
1.5 V
0.6 V
t
r
2.4 V
1.5 V
0.8 V
t
r
valid
valid
MBE742
2.0 V
0.8 V
2.4 V
0.6 V
handbook, full pagewidth
LLC clock output
LLC clock input
input data
output data
t
SU; DAT
t
HD; DAT
t
HD; DAT
valid
t
HD; DAT
valid
t
HIGH
t
HIGH
Fig.13 Clock data timing.
handbook, full pagewidth
LLC
MP(n)
RCV2
The data demultiplexing phase is coupled to the internal horizontal phase.
The phase of the RCV2 signal is programmed to 0F8h (110h for 50 Hz) in this example in output mode (RCV2S).
Cb(0)Y(0)Cr(0)Y(1)Cb(2)
MGB699
Fig.14 Functional timing.
1996 Jul 0831
Page 32
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
handbook, full pagewidth
LLC
CREF
VP(n)Y(0)
Cb(0)
RCV2
The data demultiplexing phase is coupled to the internal horizontal phase.
The C
signal applies only for the 16 line digital TV format, because these signals are only valid in 13.5 MHz.
ref
The phase of the RCV2 signal is programmed to 0F2h (110h for 50 Hz) in this example in output mode (RCV2S).
Y(1)
Cr(0)
Y(2)
Cb(2)
Fig.15 Digital TV timing.
handbook, full pagewidth
H/L transition
count start
128
LOW
13
HPLL
increment
4 bits
reserved
0021
FSCPLL increment (4)
Y(3)
Cr(2)
5 bits
reserved
Y(4)
Cb(4)DP(n)
MBE739
sequence
bit (1)
reserved (2)
reset
bit (1)
RTCI
time slot:
(1) Sequence bit:
PAL = logic 0 then (R − Y) line normal; PAL = logic 1 then (R − Y) line inverted.
NTSC = logic 0 then no change.
(2) Reserved bits: 235 with 50 Hz systems; 232 with 60 Hz systems.
(3) Only from SAA7111 decoder.
(4) SAA7111 provides (22 : 0) bits, resulting in 3 reserved bits before sequence bit.
01
not used in SAA7182/83
1419
Fig.16 RTCI timing.
1996 Jul 0832
valid
sample
invalid
sample
8/LLC
6768
MGB700
Page 33
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
Teletext timing
Time tFD is the time needed to interpolate input data TTX
and inserting it into the CVBS and Y output signal, such
that it appears at t
= 10.2 µs after the leading edge of
TTX
the horizontal synchronization pulse.
Time tPD is the pipeline delay time introduced by the
source that is gated by TTXRQ in order to deliver TTX
data.
Since the pulse representing the TTXRQ signal is fully
programmable in duration and rising/falling edges (TTXHS
and TTXHE), it always can be ensured that the TTX data
is inserted at the correct position of 10.2 µs after the
leading edge of outgoing horizontal synchronization pulse.
Time t
is the internally used insertion window for
TTXWin
TTX data; it has a constant length that allows insertion of
360 teletext bits (maximum) at a text data rate of
6.9375 bits/s. The insertion window is not opened if the
control bit TTXEN is zero.
ELETEXT PROTOCOL
T
The frequency relationship between TTX bit clock and the
system clock LLC for 50 Hz field rate is given by the
relationship of line frequency multiples, which means
1728/444.
Thus 37 TTX bits correspond to 144 LLC clocks, each bit
has a duration of nearly 4 LLC clocks. The chip-internal
sequencer and variable phase interpolation filter
minimizes the phase jitter, and thus generates a
bandwidth limited signal, which is digital-to-analog
converted for the CVBS and Y outputs.
At the TTX input, bit duration scheme repeats after 37 TTX
bits or 144 LLC clocks. The protocol demands that TXX
bits 10, 19, 28 and 37 are carried by three LLC samples,
all others by four LLC samples. After a cycle of 37 TTX
bits, the next bits with three LLC samples are bits 47, 56,
65 and 74; this scheme holds for all succeeding cycles of
37 TTX bits, until 360 TTX bits (including 16 run-in bits)
are completed. For every additional line with TTX data, the
bit duration scheme starts in the same way.
Using appropriate programming, all suitable lines of the
odd field (TTXOVS and TTXOVE) plus all suitable lines of
the even field (TTXEVS and TTXEVE) can be used for
teletext insertion.
handbook, full pagewidth
CVBS/Y
t
TTX
textbit #:123456789 10 11
TTX
4344341/LLC1/LLC
TTXRQ
t
PD
t
FD
Fig.17 Teletext timing diagram.
1996 Jul 0833
t
TTXWin
12 13 14 15 16 17 18 19 20 21 22 23 24
MGB701
Page 34
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
APPLICATION INFORMATION
SSA
V
100 nF
book, full pagewidth
+5 V analog
V
V
SSD
V
SSA
V
100 nF
100 nF
SSA
SSA
10
10
10
µH
100 nF
SSA
V
100 nF
15
100
100
15
pF
X1
27.0 MHz
pF
1
V
SSA
V
kΩ
nF
nF
kΩ
(3)
nF
100 nF
SSA
SSA
V
DDA1
V
DDA2
V
DDA3
V
DDA4
V
SSA
V
100 nF
DDA5
V
DDA6
V
DDA7
V
Y/C/CVBS
I
RGB
I
XTALOXTALI
3rd harmonic
(2)
74 Ω 0.7 V (p-p)
(1)
35 Ω
4445636874727064605754
61
RED
38
DDD5
V
(2)
SSA
V
20 Ω 1.0 V (p-p)
(1)
35 Ω
V
100 nF
Y
71
41
DDD6
75 Ω
49
DDD7
V
100 nF
(2)
SSA
V
20 Ω 0.62 V (p-p)
69
(1)
35 Ω
80
DDD8
V
100 nF
CHROMA
75 Ω
3, 15, 24, 30, 39,
82
DDD9
V
100 nF
SSA
V
MGB698
SSA
V
67
VSSD9
to
SSD1
42, 51, 79, 81
V
refL2
V
refH2
V
nF
100
refH1
V
nF
100
refL1
V
52537576
+5 V digital
Fig.18 Application environment of the EURO-DENC.
SSA
V
5
DDD1
V
100 nF
BLUE
(2)
74 Ω 0.7 V (p-p)
55
(1)
35 Ω
14
DDD2
V
100 nF
SSA
V
75 Ω
SAA7182
22
DDD3
V
100 nF
CVBS
(2)
12 Ω 1.23 V (p-p)
73
(1)
35 Ω
SAA7183
29
DDD4
V
100 nF
75 Ω
100 nF
GREEN
(2)
SSA
V
74 Ω 0.7 V (p-p)
58
(1)
35 Ω
digital
outputs
inputs and
75 Ω
75 Ω
SSD
SSDVSSDVSSDVSSDVSSDVSSDVSSDVSSD
V
V
1996 Jul 0834
(1) Typical value.
(2) For 100/100 colour bar.
(3) Philips 12NC ordering code: 4312 065 02341.
Page 35
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
PACKAGE OUTLINE
PLCC84: plastic leaded chip carrier; 84 leads
SOT189-2
e
y
75
D
X
5474
53
A
Z
E
e
E
b
p
b
1
w M
84
H
1
pin 1 index
11
β
k
1232
e
Z
D
D
H
D
33
E
E
e
k
1
A
A
1
A
4
(A )
3
L
p
detail X
v M
A
B
v M
B
0510 mm
scale
DIMENSIONS (millimetre dimensions are derived from the original inch dimensions)
UNIT A
mm
inches
A
1
min.max.max.max. max.
4.57
0.51
4.19
0.180
0.020
0.165
A
0.25
0.01
A
4
3
3.30
0.13
b
p
0.53
0.33
0.021
0.013
b
0.81
0.66
0.032
0.026
1
D
29.41
29.21
1.158
1.150
(1)
(1)
E
eH
29.41
1.27
29.21
1.158
0.05
1.150
e
D
28.70
27.69
1.130
1.090
e
E
28.70
27.69
1.130
1.090
30.35
30.10
1.195
1.185
Note
1. Plastic or metal protrusions of 0.01 inches maximum per side are not included.
OUTLINE
VERSION
IEC JEDEC EIAJ
REFERENCES
SOT189-2
1996 Jul 0835
H
E
D
30.35
30.10
1.195
1.185
k
1.22
1.07
0.048
0.042
k
0.51
0.020
1
L
p
1.44
1.02
0.057
0.040
EUROPEAN
PROJECTION
(1)(1)
Z
Z
E
D
ywvβ
0.18 0.100.18
0.007 0.0040.007
2.16
0.085
2.16
0.085
o
45
ISSUE DATE
92-11-17
95-03-11
Page 36
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
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”
Reflow soldering
Reflow soldering techniques are suitable for all LQFP
packages.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
Wave soldering
Wave soldering is not recommended for LQFP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.
(order code 9398 652 90011).
If wave soldering cannot be avoided, the following
conditions must be observed:
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave)
soldering technique should be used.
• The footprint must be at an angle of 45° to the board
direction and must incorporate solder thieves
downstream and at the side corners.
Even with these conditions, do not consider wave
soldering LQFP packages LQFP48 (SOT313-2),
LQFP64 (SOT314-2) or LQFP80 (SOT315-1).
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Repairing soldered joints
Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
1996 Jul 0836
Page 37
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
DEFINITIONS
Data sheet status
Objective specificationThis data sheet contains target or goal specifications for product development.
Preliminary specificationThis data sheet contains preliminary data; supplementary data may be published later.
Product specificationThis 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.
PURCHASE OF PHILIPS I
2
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.
C components conveys a license under the Philips’ I2C patent to use the
1996 Jul 0837
Page 38
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
NOTES
1996 Jul 0838
Page 39
Philips SemiconductorsPreliminary specification
Digital Video Encoder (EURO-DENC)SAA7182; SAA7183
NOTES
1996 Jul 0839
Page 40
Philips Semiconductors – a worldwide company
Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,
United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. +1 800 234 7381, Fax. +1 708 296 8556
Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +381 11 825 344, Fax.+381 11 635 777
For all other countries apply to: Philips Semiconductors, Marketing & Sales Communications,
Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.
Printed in The Netherlands657021/1200/02/pp40 Date of release: 1996 Jul 08Document order number: 9397750 00951
Internet: http://www.semiconductors.philips.com/ps/
(1)SAA7182_83_2 June 26, 1996 11:51 am
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