Data Sheet
ADV7181D
Rev. A | Page 11 of 24
Pin No.
Mnemonic
Type
Description
34 to 38, 45 to 49
A
IN1 to AIN10
Input
Analog Video Input Channels.
39, 40
CAPY1, CAPY2
Input
ADC Capacitor Network. Se
e Figure 9 for a recommended capacitor network for
these pins.
41
AVDD
Power
Analog Supply Voltage (3.3 V).
42
REFOUT
Output
Internal Voltage Reference Output. S
ee Figure 9 for a recommended capacitor network
for this pin.
43
CML
Output
Common-Mode Level Pin for the Internal ADCs. S
ee Figure 9 for a recommended
capacitor network for this pin.
44
CAPC2
Input
ADC Capacitor Network. Se
e Figure 9 for a recommended capacitor network for this pin.
50
SOY
Input
Sync on Luma Input. Used in embedded synchronization mode.
51
RESET
Input
System Reset Input, Active Low. A minimum low reset pulse width of 5 ms is required
52
ALSB
Input
This pin selects the I2C address for the ADV7181D control and VBI readback ports. When set to Logic 0, this pin sets the address for a write to Control Port 0x40 and the readback
address for VBI Port 0x21. When set to Logic 1, this pin sets the address for a write to
Control Port 0x42 and the readback address for VBI Port 0x23.
53
SDATA
Input/
Output
I2C Port Serial Data Input/Output Pin.
54
SCLK
Input
I2C Port Serial Clock Input. Maximum clock rate of 400 kHz.
55
VS_IN
Input
Vertical Synchronization Input Signal. This pin can be configured in CP mode to extract
timing in a 5-wire mode.
56
HS_IN/CS_IN
Input
Horizontal Synchronization Input Signal (HS_IN). This pin can be configured in CP mode
to extract timing in a 5-wire mode.
Composite Synchronization Input Signal (CS_IN). This pin can be configured in CP mode
to extract timing in a 4-wire mode.
63
FIELD/DE
Output
Field Synchronization Output Signal (FIELD). Used in all interlaced video modes.
Data Enable Signal (DE). This pin can also be used as a data enable (DE) signal in CP mode
to allow direct connection to an HDMI/DVI transmitter IC.
64
VS
Output
Vertical Synchronization Output Signal (SDP and CP Modes).
EP
Exposed Pad
The exposed pad must be connected to GND.