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Critical components
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press written approval of the Semiconductor
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1 A critical component is a component used
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failure can reasonably be expected to
cause the failure of that life-support device or system, or to affect its safety or effectiveness of that device or system.
2 Life support devices or systems are in-
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Page 3
SDA 9288X
Revision History:Current Version: 03.96
Previous Version:
Page
(in
previous
Version)
Page
Subjects (major changes since last revision)
(in new
Version)
25.1.1994:Preliminary Specification V1.1
22; 23; 2425.1.1994:warnings
2425.1.1994:additional bits VSIISQ, VSPISQ at subad. 07/08
2525.1.1994:additional bits DACONDE, DACONST at subad. 0D
2625.1.1994:supply voltage range
3225.1.1994:values DAC
3525.1.1994:diagram
4325.1.1994:influence HSIDEL to VSIDEL adjustment
19; 2119.4.1994:additional note PLL switch READ27
4319.4.1994:timing of ADC clamping
1520.6.1994:warning subaddr. 02
20; 2520.6.1994:additional bit SELDOWN at subaddr. 0B
2320.6.1994:value
Purchase of Siemens I
to use the components in the I
C components conveys the license under the Philips I2C patent
2
C system provided the system conforms to the I2C
specifications defined by Philips.
Semiconductor Group403.96
Page 5
SDA 9288X
1General Description
The Picture-in-Picture Processor SDA 9288X A141 generates a picture of reduced size
of a video signal (inset channel) for the purpose of combining it with another video signal
(parent channel). The easy implementation of the IC in an existing system needs only a
few additional external components. There is a great variety of application facilities in
professional and consumer products (TV sets, supervising monitors, multi-media, …)
Semiconductor Group503.96
Page 6
Single Chip PIP System SDA 9288X
Data SheetMOS
1.1Features
• Single chip solution
Clamping, AD conversion, filtering, field memory,
RGB matrix, DA-conversion and clock generation
integrated on one chip
• 2 picture sizes
1/9 or 1/16 of normal size
• High resolution display
13.5 MHz/27 MHz display clock frequency
212 luminance and 53 chrominance pixels per inset line for picture size 1/9
6-bit amplitude resolution for each incoming signal component
Field and frame mode display
Horizontal and vertical filtering
Special antialias filtering for the luminance signal
P-DSO-32-2
• 16:9 compatibility
Operation in 4:3 and 16:9 sets
4:3 inset signals on 16:9 displays or v.v. with picture size 1/9 and 1/16, respectively
• Analog inputs
Y, + (B-Y), + (R-Y) or Y, -(B-Y), -(R-Y)
• Analog outputs
Y, + (B-Y), + (R-Y) or Y, – (B-Y), – (R-Y) or RGB
3 RGB matrices: EBU, NTSC (Japan), NTSC (USA)
• Free programmable position of inset picture
Steps of 1 pixel and 1 line
All PIP and POP positions are possible
• Numerical PLL circuit for high stability clock generation
• No necessity of PAL/SECAM delay lines
(using suitable color decoders i.e. TDA 8310)
• Multistandard applications
625 lines/525 lines standard (inset and parent channel)
Scan conversion systems as flickerfree display systems (parent channel)
HDTV (parent channel)
• P-DSO-32-2 package/350 mil (SMD)
SDA 9288X
• 5 V supply voltage
Semiconductor Group703.96
Page 8
1.2Pin Configuration
(top view)
SDA 9288X
P-DSO-32-2
Figure 1
Semiconductor Group803.96
Page 9
1.3Pin Definitions and Functions
SDA 9288X
Pin No. SymbolFunction
1
2
V
V
SSA1
REFL
SAnalog voltage supply (VSS) for ADC
ILower reference voltage for AD converters
1)
Descriptions
3XINIQuartz oscillator (input) or quartz clock
(from another PIP IC) or line locked clock
(27 MHz, from a digital parent channel)
4XQQQuartz oscillator (output)
5
6
V
V
DD
SSA2
SDigital voltage supply (VDD)
SAnalog voltage supply (VSS) for DAC and PLL
7OUT1Q/anaAnalog output: chrominance signal
+ (R-Y) or – (R-Y) or R
8OUT2Q/anaAnalog output: luminance signal Y or G
9OUT3Q/anaAnalog output: chrominance signal
+ (B-Y) or – (B-Y) or B
10
11
V
I
DDA2
REF
SAnalog voltage supply (VDD) for DAC and PLL
Q/anaReference current for DA-converters
12SELQSingle frequency fast PIP switching output (tristate)
13SELDQDouble frequency fast PIP switching output (tristate)
14
V
BB
SCapacitor connection for smoothing internally
generated substrate bias
15ADRI
16,27
V
SS
3-L
SDigital voltage supply (VSS)
I2C Bus address control
17VPIMultifrequency vertical sync for parent channel
18HP/SCPIMultifrequency horizontal sync for parent channel
19VPD/VIIDouble frequency vertical sync for parent channel
or vertical sync input for inset channel
20HPD/SCIIDouble frequency horizontal sync for parent channel
or horizontal sync input for inset channel
21SDAI/QI
22SCLII
23SW1Q
24SW2Q
1)
I : input, Q : output, ana : analog, TTL : digital (TTL), 3-L : 3-level, S : supply voltage
3-L
3-L
2
C Bus data
2
C Bus clock
I2C Bus controlled output1
I2C Bus controlled output2
Semiconductor Group903.96
Page 10
1.3Pin Definitions and Functions (cont’d)
SDA 9288X
Pin No. SymbolFunction
25HVII
3-L
1)
Descriptions
Special 3-level hor. and vert. sync signal for inset
channel
26SYSI
3-L
Input for standard depending internal switching
(LOW (L) = PAL, MID (M) = NTSC,
HIGH (H) = SECAM)
28YINI/anaAnalog input: luminance signal Y
29VDDA1SAnalog voltage supply (
V
) for ADC
DD
30UINI/anaAnalog input: chrominance signal + (B-Y) or – (B-Y)
31VREFHIUpper reference voltage for AD converters
32VINI/anaAnalog input: chrominance signal + (R-Y) or – (R-Y)
I : input, Q : output, ana : analog, TTL : digital (TTL), 3-L : 3-level, S : supply voltage
Semiconductor Group1003.96
Page 11
1.4Functional Block Diagram
SDA 9288X
Figure 2
Semiconductor Group1103.96
Page 12
SDA 9288X
2System Description
2.1AD Conversion, Inset Synchronization
The inset video signal is fed to the SDA 9288X A141 as analog luminance and
1)
chrominance components
After clamping the video components are AD-converted with an amplitude resolution of
6 bit. The conversion is done using a 13.5 MHz clock for the luminance signal and a
3.375 MHz clock for the chrominance signals.
For the adaption to different application the clamp timing for the analog inputs can be
chosen (CLPS; CLPFIX). Setting this bits to ‘1’ can be useful for non-standard input
signals.
For inset synchronization it is possible to feed either a special 3-level signal via pin HVI
(detection of horizontal and vertical pulses) or separate signals via pins SCI for
horizontal and VI for vertical synchronization. SCI is the horizontal synchron signal of the
inset channel. If the burst gate pulse of the sandcastle is used it must be adapted to
TTL compatible levels by a simple external circuit. Centering of the displayed picture
area is possible by a programmable delay for the horizontal synchronization signal
(HSIDEL).
. The polarity of the chrominance signals is programmable.
The inset horizontal synchronization signals are sampled with 27 MHz. This 27 MHz
clock and the AD converter clocks are derived from the parent horizontal synchronization
pulse (see chapter 2.6) or from the quartz frequency converted by a factor of 4/3.
Delay differences between luminance and chrominance signals at the input of the IC
caused by chroma decoding are compensated by a programmable luminance delay
line (YDEL) of about – 290 ns … 740 ns (at decimation input; see ApplicationInformation).
By analyzing the synchronization pulses the line standard of the inset signal source is
detected and interference noise on the vertical sync signal is removed. For applications
with fixed line standard (only 625 lines or 525 lines) the automatic detection can be
switched off.
The phase of the vertical sync pulse is programmable (VSIDEL; VSPDEL). By this way
a correct detection of the field number is possible, an important condition for frame mode
display.
Note: The adjustment of VSIDEL is influenced by HSIDEL (see chapter 4.3), vertical
synchronization via pin HVI causes an additional internal delay for the vertical
sync pulse of about 16
µ
s.
1)
To improve the signal-to-noise ratio the amplitude of the input signals should be as large as possible.
Semiconductor Group1203.96
Page 13
SDA 9288X
2.2Input Signal Processing
This stage performs the decimation of the inset signal by horizontal and vertical filtering
and sub-sampling. A special antialias filter improves the frequency response of the
luminance channel. It is optimized for the use of the horizontal decimation factor 3:1.
A window signal, derived from the sync pulses and the detected line standard, defines
the part of the active video area used for decimation. For HSIDEL = ‘0’ the decimation
window is opened about 104 clock periods (13.5 MHz) after the horizontal
synchronization pulse. For the 625 lines standard the 36th video line is the first
decimated line, for the 525 lines standard decimation starts in the 26th video line.
z = e
L = samples per line for luminance respectively chrominance
,T = 1/13.5 MHz for luminance T = 1/3.375 MHz for chrominance
+z
–2L
–2L
–2L
–2L
+z
+z
–3L
–3L
The realized chrominance filtering allows omitting the color decoder delay line for PAL
and SECAM demodulation if the color decoder supplies the same output voltages
independent of the kind of operation. In case of SECAM signals an amplification of the
chrominance signals by a factor of 2 is necessary because just every second line a
signal is present. This chrominance amplification is programmable via pin SYS or
2
I
C Bus (AMSEC).
The horizontal and vertical decimation factors are free programmable (DECHOR,
DECVER). Using different decimations horizontal and vertical 16:9 applications become
realizable:
DECHOR = ‘1’, DECVER = ‘0’: picture size 1/9 for 4:3 inset signals on 16:9 displays
DECHOR = ‘0’, DECVER = ‘1’: picture size 1/16 for 16:9 inset signals on 4:3 displays
Semiconductor Group1303.96
Page 14
SDA 9288X
2.3PIP Field Memory
The on-chip memory stores one decimated field of the inset picture. Its capacity is
169 812 bits. The picture size depends on the horizontal and vertical decimation factors.
Horizontal DecimationPIP PIXELS per Line
Y(B-Y)(R-Y)
3:12125353
4:11604040
Vertical DecimationLine StandardPIP Lines
3:162588
3:152576
4:162566
4:152557
In field mode display just every second inset field is written into the memory, in frame
mode display the memory is continuously written. Data are written with the lower inset
clock frequency depending on the horizontal decimation factor (4.5 MHz or 3.375 MHz).
Normally the read frequency is 13.5 MHz and 27 MHz for scan conversion systems.
For progressive scan conversion systems and HDTV displays a line doubling mode is
available (LINEDBL). Every line of the inset picture is read twice.
Memory writing can be stopped by program (FREEZE), a freeze picture display results
(one field).
Having no scan conversion and the same line numbers in inset and parent channel
(625 lines or 525 lines both) frame mode display is possible. The result is a higher
vertical and time resolution because of displaying every incoming field. For this purpose
the standards are internally analysed and activating of frame mode display is blocked
automatically when the described restrictions are not fulfilled.
As in the inset channel a field number detection is carried out for the parent channel.
Depending on the phase between inset and parent signals a correction of the display
raster for the read out data is performed by omitting or inserting lines when the read
address counter outruns the write address counter.
The display position of the inset picture is free programmable (POSHOR, POSVER).
The first possible picture position (without frame) is 54 clock periods (13.5 MHz or
27 MHz) after the horizontal and 4 lines after the vertical synchronization pulses. Starting
at this position the picture can be moved over the whole display area. Even
POP-positions (Picture Outside Picture) at 16:9 applications are possible.
Semiconductor Group1403.96
Page 15
SDA 9288X
Having different line standards in inset and parent channels we have a so called mixed
mode display. It causes deformations in the aspect ratio of the inset picture. A special
mixed mode display is available for the picture size 1/9 (MIXDIS):
– Parent channel 625 lines, inset channel 525 lines: The inset picture is shifted down by
6 lines. By performing this shifting the centers of the inset pictures have the same
position for both line standards.
– Parent channel 525 lines, inset channel 625 lines: The inset picture gets a reduced
line number of 76. The first and the last 6 lines are omitted. This way the inset picture
size is the same as for 525 lines inset signals. The display shows the center part of
the original picture.
Synchronization of memory reading with the parent channel is achieved by processing
the parent horizontal and vertical synchronization signals in the same way as described
for the inset channel. The synchronization signals are fed to the IC at pin HP/SCP for
horizontal synchronization and pin VP for vertical synchronization. In the same way as
described for the inset channel the burst gate of the sandcastle signal can be used for
horizontal synchronization. In scan conversion systems also the inputs HPD/SCI and
VPD/VI are available if the input HVI is activated for inset synchronization.
Semiconductor Group1503.96
Page 16
SDA 9288X
2.4Output Signal Processing
At the memory output the chrominance components are demultiplexed and linearly
interpolated to the luminance sample rate.
Different output formats are available: luminance signal Y with inverted or non-inverted
chrominance signals (B-Y), (R-Y) or RGB. For the RGB conversion 3 matrices are
integrated:
Matrix selection is done by pin SYS or I
following input voltages (100 % white, 75 % color saturation):
C Bus. The matrices are designed for the
ComponentInput Voltage (without sync) in % of Full Scale Input Range of ADC
Y75
B-Y100
R-Y100
Semiconductor Group1603.96
Page 17
2.4.1Matrix Equations
SDA 9288X
EBU
R
G
B
R
G
B
=
=
101
00.78125 1
0.1875–0.40625–1
NTSC (Japan)
101
0.0625–1.09375 1
0.15625–0.375–1
BY–
RY–
Y
BY–
RY–
Y
NTSC (USA)
R
G
B
=
101
0.25–1.3751
BY–
RY–
0.09375–0.40625–1
Y
2.4.2Frame Insertion
A colored frame is added to the inset picture. 4096 frame colors are programmable,
4 bits for each component Y, (B-Y), (R-Y) (bits FRY, FRU, FRV). The horizontal and
Semiconductor Group1703.96
Page 18
SDA 9288X
vertical width of the frame are independently programmable. Width = 0 means display
without frame.
For controlling an external switch (for example an RGB processor) a select signal is
supplied. Pin SEL is active in normal 13.5 MHz reading mode, pin SELD is active using
27 MHz. The phases of these signals are programmable for adaption to different
external output signal processing.
Semiconductor Group1803.96
Page 19
SDA 9288X
2.5DA Conversion
The SDA 9288X A141 includes three 6-bit DA converters. Each converter supplies a
V
current through an external resistor that is connected between
OUT3 respectively. The current is controlled by a digital control circuit. Each command
DACONST or PIPON starts the adjustment cycle.
2.6PLL
A numerical PLL circuit supplies a clock of about 27 MHz with high stability. The
generated clock is locked to the parent horizontal synchronization pulse. Its frequency
depends linearly on the frequency of the sync signal and the quartz frequency. The
recommended quartz frequencies are listed under ‘Recommended Operation
Conditions’. Using up to three SDA 9288X A141 ICs in one application only a single
quartz is necessary. Four time constants are programmable via I
switched off an external 27 MHz parent line locked clock can be fed to the IC.
and OUT1, OUT2,
SSA
2
C Bus. If the PLL is
The inset clock generation is possible in two ways:
1. Synchron with the parent horizontal synchronization pulse (bit CLISW = ‘0’)
2. Synchron with the quartz frequency (bit CLISW = ‘1’;
= 4/3 × f
cli
). In this mode the
quartz
f
aspect ratio is independent on the parent sync frequency but depends on the used
resonator type. It is only possible to use one of the two modes.
Note: Before setting bit D3 of subaddress 00 (READ27) noise reduction of the
VSP pulse must be switched off (D5 of subaddress 08 = ‘1’).
2.7I2C Bus
2
2.7.1I
Three different I
C Bus Addresses
2
C addresses are programmable via pin ADR.
Pin ADRAddress (bin.)Address (hex.)
Low level (
V
SS
or V
)11010110D6
SSA
Mid level (open)11011100DC
High level (
V
DD
or V
)11011110DE
DDA
2
2.7.2I
C Bus Receiver Format
SAddressASubaddressAData ByteA****AP
S: start conditionA: acknowledgeP: stop condition
Only write operation is possible. An automatically address increment function is
implemented.
After switching on the IC the data bytes of all registers are set to ‘0’, the bit PLLOFF is
set to ‘1’.
Semiconductor Group2003.96
Page 21
BitNameFunction
Subaddress 00
D0PIPON0: PIP insertion OFF
1: PIP insertion ON
D1FRAME0: field display
1: frame display (under special restrictions).
Correct adjustment of bits VSIDEL, VSPDEL required
(see chapter 4.3)
D2LINEDBL0: each line of the PIP memory is read once
(normal operation)
1: each line of the PIP memory is read twice
(line doubling for progressive scan conversion systems
in parent channel)
SDA 9288X
D3READ270: PIP display with single read frequency (13.5 MHz)
1: PIP display with double read frequency (27 MHz)
(see note page 19).
D4PLLOFF0: internal PLL ON
1: internal PLL OFF (external clock generation)
D5FREEZE0: live picture
1: freeze picture
D6SYSACT0: pin SYS inactive: selection of decimation amplification and
RGB-matrix is done via I
2
C Bus
1: pin SYS active: selection of decimation amplification
and RGB-matrix is done via pin SYS
Subaddress 01
D1 … D0 POSHOR2 MSBs of POSHOR (see also subaddress 02)
D2MIXDIS0: PIP picture height depends just upon inset line standard,
position upon POSHOR
1: modified PIP picture height and position for different inset
and parent line standards (mixed display mode)
D6 … D3 SELDELDelay of output signal SELECT at pins SEL respectively SELD
(–8…7 periods of read frequency clock, programmable in
2’s complement code). SELDEL = ‘0’: SELECT signal has the
same phase as the PIP picture signal referenced to the
IC output.
Semiconductor Group2103.96
Page 22
BitNameFunction
Subaddress 02
D7 … D0 POSHORHorizontal position of PIP picture (raster: 1 pixel)
Note: The 2 MSBs of POSHOR are located at subaddress 01
Warning: It is not allowed to adjust positions < 2 and > 740.
Note: To avoid horizontal jumping of the picture by changing
POSHOR from ‘00 1111 1111’ to ‘01 0000 0000’ its
necessary to transfer the bits of both subaddresses
during the same field period.
Subaddress 03
SDA 9288X
D7 … D0 POSVERVertical position of PIP picture (raster: 1 line)
Warning: It is not allowed to adjust positions
> 220 (50 Hz) or > 182 (60 Hz).
Subaddress 04
D2 … D0 YDELDelay of luminance input signal
000: minimum delay
111: maximum delay; see chapter 4.2
D4 … D3 SW1Direct control of output pin SW1 (3 levels)
00: low level
01: mid level
10: high level
11: high level
D6 … D5 SW2Direct control of output pin SW2 (3 levels)
00: low level
01: mid level
10: high level
11: high level
Semiconductor Group2203.96
Page 23
SDA 9288X
BitNameFunction
Subaddress 05
D1 … D0 IMOD00: automatic detection of line standard (inset signal)
01: fixed adjustment 625 lines
10: fixed adjustment 525 lines
11: freeze last line standard
D3 … D2 PMOD00: automatic detection of line standard (parent signal)
01: fixed adjustment 625 lines
10: fixed adjustment 525 lines
11: freeze last line standard
D5INSHVI0: inset synchronization signals via pins HPD/SCI
and VPD/VI
1: inset synchr. signals via pin HVI (3-I. sand-castle signal)
D6DECHOR0: horizontal decimation 3 to 1
1: horizontal decimation 4 to 1
D7DECVER0: vertical decimation 3 to 1
1: vertical decimation 4 to 1
Subaddress 06
D3 … D0 HSIDELDelay of horizontal synchronization pulse (inset signal)
Raster: 6 clock periods of 13.5 MHz.
Warning: Adjustment of HSIDEL will influence the adjustment
of VSIDEL (subaddr. 07); see chapter 4.3
D4CLISW0: inset clock synchronized with parent clock
1: inset clock synchronized with quartz frequency
Note: Only one of the two modes can be used.
Switching back from ‘1’ to ‘0’ is not possible!
D5CLPFIX0: clamp pulses of ADC are dependent on the adjustment
of HSIDEL
1: clamp pulses fixed; no influence of HSIDEL
D6CLPS0: three clamp cycles per line (timing see diagram)
1: two clamp cycles per line
1)
Fixed adjustments for IMOD and PMOD result in undefined working conditions when signal standards are
used which are different from the programmed values.
Semiconductor Group2303.96
Page 24
SDA 9288X
BitNameFunction
Subaddress 07
D4 … D0 VSIDELDelay of vertical synchronization pulse (inset signal)
in steps of 2.37 µs.
Warning: Correct adjustment value is influenced by the
adjustment of HSIDEL (subaddr. 06); see chapter 4.3.
D5VSIISQNoise reduction of the VSI pulse
(set to ‘0’ under normal conditions)
D7AMSEC0: unity amplification of decimation filters (normal mode)
1: amplification by a factor of 2 (SECAM signals without delay
line in the chroma decoder)
Subaddress 08
D4 … D0 VSPDELDelay of vertical synchronization pulse (parent signal)
in steps of 2.37 µs/1.68 s (50/100 Hz)
D5VSPISQNoise reduction of the VSP pulse (should be set to ‘0’ under
normal conditions); in case changing from standard mode to
line or frame conversion modes ‘1’ should be set during the
changement of line frequency
D7PARSYND0: parent synchronization signals for double frequency read
via pins HP/SCP and VP
1: parent synchronization signals for double frequency read
via pins HPD/SCI and VPD/VI (INSHVI = ‘1’ required)
Subaddress 09
D3 … D0 FRYLuminance component of frame color (4 MSBs of 6 bit)
D7 … D4 CONContrast adjustment of PIP picture; steps and adjustment
range depending on the external output resistors.
Proposed value see chapter 3.3
Subaddress 0A
D3 … D0 FRUChrominance component (B-Y) of frame color
(4 MSBs of 6 bit)
D7 … D4 FRVChrominance component (R-Y) of frame color
(4 MSBs of 6 bit)
Semiconductor Group2403.96
Page 25
BitNameFunction
Subaddress 0B
D2 … D0 FRWIDHHorizontal width of PIP frame (0 … 7 pixels)
D4 … D3 FRWIDVVertical width of PIP frame (0 … 3 lines)
D5SELDOWN 0: open source output at pins SEL, SELD
1: TTL output at pins SEL, SELD
Subaddress 0C
D0OUTFOR0: format of output signals: Y, (B-Y), (R-Y)
1: automatic matrix selection depending on inset line standard
Subaddress 0D
D0DACONDE Set to ‘0’
D5PLLTC2Time constant of internal PLL:
00: medium damping, low resonance frequency
01: medium damping, high resonance frequency
D6PLLTC110: high damping, low resonance frequency
11: high damping, high resonance frequency
Note: After power ON PLLTC must remain at 00
until the system is locked.
D7DACONSTChanging from ‘0’ to ‘1’ starts automatic adjustment of
OUT1 … 3 output current (switching PIPON gives the
same result).
Semiconductor Group2503.96
Page 26
3Electrical Characteristics
3.1Absolute Maximum Ratings
ParameterSymbolLimit ValuesUnitRemark
min.max.
SDA 9288X
Ambient temperature
Storage temperature
Junction temperature
Soldering temperature
Input voltage
Output voltage
T
T
T
T
V
V
V
A
stg
j
SOLD
I
I
Q
070°C
– 55125°C
125°C
260°CDuration < 10 s
– 0.5 V VDD+
0.5 V
1Analog inputs
(YIN, UIN, VIN,
– 17VAll other pins
– 0.5 V VDD+
0.5 V
1Pins OUT1, OUT2,
OUT3, XQ, SW1,
I
REF
SW2
Supply voltages
Supply voltage differentials
Total power dissipation
V
V
V
P
Q
DD
DD D
tot
– 17VAll other pins
–17V
– 0.250.25V
900mW
Latch-up protection– 100100mAExcept pins OUT1,
OUT2, OUT3,
I
REF
XQ, XQ, YIN, UIN,
VIN
)
,
Note: All voltages listed are referenced to ground (0 V,
V
) except where noted.
SS
Stresses above those listed here may cause permanent damage to the device.
Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Semiconductor Group2603.96
Page 27
3.2Operational Range
ParameterSymbolLimit ValuesUnit Remark
min.typ.max.
SDA 9288X
Supply voltages
Ambient temperature
V
T
DDxx
A
4.7555.5V
02570°C
All TTL Inputs
Low-level input
V
IL
– 10.8V
voltage
High-level input
V
IH
2.06V
voltage
All Three Level Inputs (3-L) (see figure)
High-level input
V
IH
3.56V
voltage
Low-level input
V
IL
– 10.8V
voltage
Medium-level voltage
V
IM
Open input,
see chapter 3.3
All 3-L Outputs (see figure)
High-level output
I
OH
– 5000µA
current
Low-level output
I
OL
01.6mA
current
Inset Horizontal Sync TTL and 3-L Inputs: HPD/SCI, HVI
1)
Horizontal frequency14.5316.72kHz
Signal rise time100nsNoisefree L/M-to-H
transition
Signal high time100ns
Signal medium
900ns
or low time
1)
All values are referred to the corresponding min (VIH), max (VIM) and max (VIL)
Semiconductor Group2703.96
Page 28
3.2Operational Range (cont’d)
ParameterSymbolLimit ValuesUnit Remark
min.typ.max.
SDA 9288X
Inset Vertical Sync TTL and 3-L Inputs: VPD/VI, HVI
Digital-to-Analog Converters (6 bit): Current Source Outputs OUT1, OUT2, OUT3
D.C. differential nonlinearityDNLE– 0.50.5LSB R
Full range output current
I
O
– 1.42– 1.73mAV
= 5.1 kΩ
REF
= max, TA = nom,
DDA
R
= 5.1 kΩ,
REF
R
= 680 Ω,
L
after adjustment
/5)
1)
Semiconductor Group3303.96
Page 34
3.3Characteristics (cont’d)
ParameterSymbol Limit Values Unit Remark
min.max.
SDA 9288X
Output voltage
(
V
1.6 × V
ON
DDA
× RL/R
REF
)
V
O
0.961.18VV
Tracking– 33%
Contrast increase30%
Supply voltage dependence of
DAC output current
Temperature dependence of
DAC output current
= max, TA = nom,
DDA
R
= 680 Ω,
L
R
= 5.1 kΩ,
REF
after adjustment
V
= max, TA = nom,
DDA
R
= 5.1 kΩ,
REF
R
= 680 Ω
L
V
= nom, TA = nom,
DDA
R
= 680 Ω,
L
R
= 6.8 kΩ,
REF
contrast bits change
from ‘0000’ to ‘1111’
for typical values
see chapter 4
For typical values
see chapter 4
For typical values
see chapter 4
Dependence of DAC output
current on external reference
For typical values
see chapter 4
resistor
1)I2
C: Contrast bits set to zero unless otherwise noted.
Note: The listed characteristics are ensured over the operating range of the integrated
circuit unless restricted to nominal operating conditions (all voltages refer to
V
SS
).
The listed characteristics are ensured over the operating range of the integrated
circuit. Typical characteristics specify mean values expected over the production
spread. If not otherwise specified, typical characteristics apply at
T
= 25°C and
A
the given supply voltage.
Semiconductor Group3403.96
Page 35
SDA 9288X
4Diagrams
4.1Output Current of DA Converters
V
Nominal values:
= 5 V; V
DDA
Measurements after adjustment via bit d7 of I
Note: The output currents are controlled in digital way, so inaccuracy of 1 LSB (ca. 2 %)
is always possible.
= 5.1 kΩ; T = 25 °C
REF
2
C Bus address 0D for each step
Output current = f (V
)Output current = f (TA)
DDA
Semiconductor Group3503.96
Page 36
SDA 9288X
Output current = f (R
)Current = f (CON 0 … 3)
REF
Semiconductor Group3603.96
Page 37
4.2Application Information
4.2.1Reference Voltage Generation for ADC
SDA 9288X
Figure 3
Signal Input Range 1 Vpp at Y, U, V
Figure 4
Signal Input Range 2 Vpp at Y, U, V
Semiconductor Group3703.96
Page 38
SDA 9288X
Figure 5
Signal Input Range 0.5 Vpp at Y, U, V
Semiconductor Group3803.96
Page 39
4.2.2Adjustment of YDEL
SDA 9288X
Figure 6
Semiconductor Group3903.96
Page 40
4.2.3Three Level Interface (3-L)
SDA 9288X
Figure 7
High level (H):upper transistor ON, lower transistor OFF
Medium level (M):both transistors OFF (interface voltage determined by input stage)
Low level (L):upper transistor OFF, lower transistor ON
Semiconductor Group4003.96
Page 41
4.2.4Application Board Layout Proposal
SDA 9288X
Figure 8
(top view)
Figure 9
(bottom view)
Semiconductor Group4103.96
Page 42
4.2.5Application Circuit (R, G, B-mode)
SDA 9288X
Figure 10
Semiconductor Group4203.96
Page 43
4.3Waveforms
4.3.1Timing of ADC Clamping
SDA 9288X
Figure 11
The values are valid if HSIDEL = ‘0’. To get the maximum values 444 ns for each step
of HSIDEL adjustment must be added (CLPFIX = ‘0’). With CLPFIX = ‘1’ there is no
influence of the HSIDEL adjustment to the clamp timing.
Semiconductor Group4303.96
Page 44
SDA 9288X
4.3.2Phase Relation of Sync Pulses at Frame Mode
If the phase relation is not correct at the H and V sync inputs, an adjustment via bits
VSIDEL and VSPDEL is possible.
Figure 12
Signal Flow of the Horizontal Synchronization (insert part)
Figure 13
Allowed Phase Relation of the
Horizontal/Vertical Sync Pulses (insert channel) if VSIDEL(0:4) = ‘0000’
Semiconductor Group4403.96
Page 45
SDA 9288X
Figure 14
Allowed Phase Relation of the
Horizontal/Vertical Sync Pulses (parent channel)if VSIDEL(0:4) = ‘0000’
Semiconductor Group4503.96
Page 46
5Package Outlines
P-DSO-32-2
(Plastic Dual Small Outline Package)
SDA 9288X
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information”
SMD = Surface Mounted Device
Semiconductor Group4603.96
Dimensions in mm
GPS05697
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