ADV7196A_15 Datasheet, PDF (9/36 Pages) Analog Devices – Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs, 10-Bit Data Input, and Macrovision

Pin
1, 12
2–11
Mnemonic
V_DD
Y0–Y9
13, 52 GND
14–23 Cr0–Cr9
24, 35
25
V_AA
CLKIN
26, 33
27
28
29
30
31
32
34
36
37
38
AGND
DV
VSYNC/
TSYNC
HSYNC/
SYNC
SCL
SDA
DAC C
DAC A
DAC B
COMP
R_SET
39
V_REF
40
RESET
41
ALSB
42–51 Cb/Cr9–0
ADV7196A
PIN FUNCTION DESCRIPTIONS
Input/Output
P
I
G
I
P
I
G
I
I
I
I
I/O
O
O
O
O
I
I/O
I
I
I
Function
Digital Power Supply
10-Bit Progressive Scan/HDTV Input Port for Y Data. Input for G data when
RGB data is input.
Digital Ground
10-Bit Progressive Scan/HDTV Input Port for Color Data in 4:4:4 Input Mode.
In 4:2:2 mode this input port is not used. Input port for R data when RGB data
is input.
Analog Power Supply
Pixel Clock Input. Requires a 27 MHz reference clock for standard operation in
Progressive Scan Mode or a 74.25 MHz (74.1758 MHz) reference clock in
HDTV mode.
Analog Ground
Video Blanking Control Signal Input
VSYNC, Vertical Sync Control Signal Input or TSYNC Input Control Signal in
Async Timing Mode
HSYNC, Horizontal Sync Control Signal Input or SYNC Input Control Signal in
Async Timing Mode
MPU Port Serial Interface Clock Input
MPU Port Serial Data Input/Output
Color Component Analog Output of Input Data on Cb/Cr9–0 Input Pins
Y Analog Output
Color Component Analog Output of Input Data on Cr9–Cr0 Input Pins
Compensation Pin for DACs. Connect 0.1 µF capacitor from COMP pin to V_AA.
A 2470 Ω resistor (for input ranges 64–940 and 64–960; output standards
EIA-770.1–EIA-770.3) must be connected from this pin to ground and is used to
control the amplitudes of the DAC outputs. For input ranges 0–1023 (output
standards RS-170, RS-343A) the R_SET value must be 2820 Ω.
Optional External Voltage Reference Input for DACs or Voltage Reference
Output (1.235 V)
This input resets the on-chip timing generator and sets the ADV7196A into
Default Register setting. Reset is an active low signal.
TTL Address Input. This signal sets up the LSB of the MPU address. When this
pin is tied high, the I²C filter is activated which reduces noise on the I²C interface.
When this pin is tied low, the input bandwidth on the I²C interface is increased.
10-Bit Progressive Scan/HDTV Input Port for Color Data. In 4:2:2 mode the
multiplexed CrCb data must be input on these pins. Input port for B data when
RGB is input.
REV. 0
–9–