EVAL-ADV7320EB AD [Analog Devices], EVAL-ADV7320EB Datasheet - Page 64

• Manufacturer Part Number: EVAL-ADV7320EB
• Description: Multiformat 216 MHz Video Encoder with Six NSV 12-Bit DACs
• Manufacturer: AD [Analog Devices]

ADV7320/ADV7321
For optimum performance, the analog outputs should each be
source- and load-terminated, as shown in Figure 91. The
termination resistors should be as close as possible to the
ADV7320/ADV7321 to minimize reflections.
For optimum performance, it is recommended that all
decoupling and external components relating to the
ADV7320/ADV7321 are located on the same side of the PCB
and as close as possible to the ADV7320/ADV7321. Any
unused inputs should be tied to ground.
4.7 µ F
ALL COMPONENTS IN DASHED BOXES MUST BE LOCATED ON THE SAME SIDE
OF THE PCB AS THE ADV7320/21 AND AS CLOSE AS POSSIBLE TO THE ADV7320/21.
4.7k Ω
SHOULD BE
GROUNDED
UNUSED
INPUTS
V
AA
+
V
AA
680 Ω
5k Ω
820pF
V
DD_IO
3.9nF
0.1 µ F
19
50
49
48
63
23
24
25
33
32
34
GND_ IO
COMP1, 2
V
I
S0–S9
S_HSYNC
S_VSYNC
S_BLANK
C0–C9
Y0–Y9
CLKIN_B
P_HSYNC
P_VSYNC
P_BLANK
RESET
CLKIN_A
EXT_LF
2
45
AA
C
64
V
36
AA
ADV7320/
ADV7321
0.1 µ F
AGND
V
41
Figure 91. ADV7320/ADV7321 Circuit Layout
AA
40
POWER SUPPLY DECOUPLING
FOR EACH POWER SUPPLY GROUP
V
DGND
DD
10, 56
11, 57
DAC A
DAC B
DAC C
DAC D
V
DAC E
DAC F
R
R
Rev. 0 | Page 64 of 88
SCLK
ALSB
DD_IO
V
SDA
SET2
SET1
1
REF 46
44
43
42
39
38
37
22
21
20
35
47
10nF
10nF
10nF
300 Ω
300 Ω
300 Ω
300 Ω
300 Ω
300 Ω
100 Ω
100 Ω
3040 Ω
3040 Ω
+
1 µ F
0.1 µ F
0.1 µ F
V
DD_IO
5k Ω
100nF
V
V
V
V
DD_IO
AA
DD
DD_IO
V
DD_IO
5k Ω
SELECTION HERE
DETERMINES
DEVICE ADDRESS
5k Ω
1.1k Ω
I
V
2
C BUS
AA
RECOMMENDED EXTERNAL
AD1580 FOR OPTIMUM
PERFORMANCE