Datasheet
AD8120 Data Sheet
Rev. A | Page 6 of 16
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
NOTES
1. DNC = DO NOT CONNECT.
2. EXPOSED PAD ON UNDERSIDE OF DEVICE
MUST BE CONNECTED TO PCB PLANE.
07839-003
24 GND
23
V
CR
22
V
CG
21
V
CB
20
V
REF
19 DNC
18 GND
17
V
S+
1
2
3
4
5
6
7
8
GND
SDO/SDA
DNC
DNC
PD
SER_SEL
MODE
GND
9
10
11
12
13
14
15
16
V
S–
GND
B
OUT
GND
G
OUT
GND
R
OUT
V
S+
32
31
30
29
28
27
26
25
GND
CS/A0
SCK/SCL
SDI/A1
B
IN
G
IN
R
IN
V
S+
R
d
G
d
B
d
DIGITAL
CONTROL
ANALOG
CONTROL
AD8120
TOP VIEW
(Not to Scale)
Figure 3. Pin Configuration
Table 4. Pin Function Descriptions
Pin No. Mnemonic Description
1, 8, 10, 12, 14,
18, 24, 32
GND
Ground.
2 SDO/SDA Serial Data Output for SPI Bus/Bidirectional Serial Data Line for I
2
C Bus.
3, 4, 19 DNC Do Not Connect.
5
PD
Power-Down.
6 SER_SEL Selection of SPI Serial Bus or I
2
C Serial Bus (I
2
C = 0, SPI = 1).
7 MODE Selection of Analog Control Mode or Digital Control Mode (Digital = 0, Analog = 1).
9 V
S−
Negative Power Supply. Connect to −5 V.
11 B
OUT
Blue Channel Video Output.
13 G
OUT
Green Channel Video Output.
15 R
OUT
Red Channel Video Output.
16, 17, 25 V
S+
Positive Power Supply. Connect to +5 V.
20 V
REF
Internal Reference Bypass. Connect a 0.01 μF capacitor between this pin and GND.
21 V
CB
Analog Delay Control Voltage, Blue Channel.
22 V
CG
Analog Delay Control Voltage, Green Channel.
23 V
CR
Analog Delay Control Voltage, Red Channel.
26 R
IN
Red Channel Video Input.
27
G
IN
Green Channel Video Input.
28 B
IN
Blue Channel Video Input.
29 SDI/A1 Serial Data Input for SPI Bus/I
2
C Address Bit 1.
30 SCK/SCL Serial Clock for SPI Bus/Serial Clock for I
2
C Bus.
31
CS
/A0 Chip Select for SPI Bus/I
2
C Address Bit 0.
Exposed Pad EP Thermal Plane Connection. Connect the exposed pad on the underside of the AD8120 to any PCB
plane with voltage between V
S+
and V
S−
.