[PM01] QN01 : ADV7320
Pin No. Mnemonic Input/Output Description
62–58,
55–51
S9 to S0 I
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.
33
RESET
I
This input resets the on-chip timing generator and sets the ADV7320/ADV7321 into default
register setting. RESET
is an active low signal.
47, 35 R
SET1
, R
SET2
I
A 3040 Ω resistor must be connected from this pin to AGND and is used to control the
amplitudes of the DAC outputs.
22 SCLK I I
2
C Port Serial Interface Clock Input.
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
2
C filter is activated, which reduces noise on the I
2
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 ADV7320/ADV7321 to interface over the I
2
C port.
64 GND_IO Digital Input/Output Ground.
Pin No. Mnemonic Input/Output Description
11, 57 DGND G Digital Ground.
40 AGND G Analog Ground.
32 CLKIN_A I Pixel Clock Input for HD (74.25 MHz Only, PS Only (27 MHz), SD Only (27 MHz).
63 CLKIN_B I
Pixel Clock Input. Requires a 27 MHz reference clock for progressive scan mode or a 74.25 MHz
(74.1758 MHz) reference clock in HDTV mode. This clock is only used in dual modes.
45, 36
COMP1,
COMP2
O Compensation Pin for DACs. Connect 0.1 μF capacitor from COMP pin to V
AA
.
44 DAC A O CVBS/Green/Y/Y Analog Output.
43 DAC B O Chroma/Blue/U/Pb Analog Output.
42 DAC C O Luma/Red/V/Pr Analog Output.
39 DAC D O
In SD Only Mode: CVBS/Green/Y Analog Output; in HD Only Mode and Simultaneous HD/SD
Mode: Y/Green [HD] Analog Output.
38 DAC E O
In SD Only Mode: Luma/Blue/U Analog Output; in HD Only Mode and Simultaneous HD/SD
Mode: Pr/Red Analog Output.
37 DAC F O
In SD Only Mode: Chroma/Red/V Analog Output; in HD Only Mode and Simultaneous HD/SD
Mode: Pb/Blue [HD] Analog Output.
23
P_HSYNC
I Video Horizontal Sync Control Signal for HD in Simultaneous SD/HD Mode and HD Only Mode.
24
P_VSYNC
I Video Vertical Sync Control Signal for HD in Simultaneous SD/HD Mode and HD Only Mode.
25
P_BLANK
I Video Blanking Control Signal for HD in Simultaneous SD/HD Mode and HD Only Mode.
48
S_BLANK
I/O Video Blanking Control Signal for SD Only.
49
S_VSYNC
I/O Video Vertical Sync Control Signal for SD Only.
50
S_HSYNC
I/O Video Horizontal Sync Control Signal for SD Only.
13,12,
9–2
Y9 to Y0 I
SD or Progressive Scan/HDTV Input Port for Y Data. Input port for interleaved progressive scan
data. The LSB is set up on Pin Y0. For 8-bit data input, LSB is set up on Y2.
30–26,
18–14
C9 to C0 I
Progressive Scan/HDTV Input Port 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.
182
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