
REV. 0
–16–
ADV7314
Pin No.
Mnemonic
Input/Output
Function
50
49
2–9, 12–13
S_HSYNC
S_VSYNC
Y9–Y0
I/O
I/O
I
Video Horizontal Sync Control Signal for SD Only.
Video Vertical Sync Control Signal for SD Only.
SD or Progressive Scan/HDTV Input Port for Y Data. Input port for inter-
leaved progressive scan data. The LSB is set up on Pin Y0. For 8-bit data
input, LSB is set up on Y2.
Progressive Scan/HDTV Input Port. In 4:4:4 Input mode, this port is used for
the Cb[Blue/U] data. The LSB is set up on Pin C0. For 8-bit data input, LSB
is set up on C2.
SD or Progressive Scan/HDTV Input Port for Cr [Red/V] Data in 4:4:4 Input
Mode. LSB is set up on Pin S0. For 8-bit data input, LSB is set up on S2.
This input resets the on-chip timing generator and sets the ADV7314 into
default register setting.
RESET
is an active low signal.
A 3040
W
resistor must be connected from this pin to AGND and is used
to control the amplitudes of the DAC outputs.
I
2
C Port Serial Interface Clock Input.
14–18, 26–30
C9–C0
I
51–55, 58–62
S9–S0
I
33
RESET
I
35, 47
R
SET2
, R
SET1
I
22
SCLK
I
21
SDA
I/O
I
2
C Port Serial Data Input/Output.
20
ALSB
I
TTL Address Input. This signal sets up the LSB of the I
2
C address. When
this pin is tied low, the I
C filter is activated, reducing noise on the I
C
interface.
1
V
DD_IO
P
Power Supply for Digital Inputs and Outputs.
10, 56
V
DD
P
Digital Power Supply.
41
V
AA
P
Analog Power Supply.
46
V
REF
I/O
Optional External Voltage Reference Input for DACs or Voltage Reference
Output (1.235 V).
34
EXT_LF
I
External Loop Filter for the Internal PLL.
31
RTC_SCR_TR
I
Multifunctional Input. Real-time control (RTC) input, timing reset input,
subcarrier reset input.
19
I
2
C
I
This input pin must be tied high (V
DD_IO
) for the ADV7314 to interface
over the I
2
C port.
64
GND_IO
Digital Input/Output Ground.
TERMINOLOGY
SD
HD
PS
HDTV
YCrCb
YPrPb
Standard definition video, conforming to ITU-R BT.601/656.
High definition video, such as progressive scan or HDTV.
Progressive scan video, conforming to SMPTE 293M, ITU-R BT.1358, BTA T-1004 EDTV2, BTA 1362
High definition television video, conforming to SMPTE 274M or SMPTE 296M.
SD, HD, or PS component digital video.
HD, SD, or PS component analog video.