ADA4424 AD [Analog Devices], ADA4424 Datasheet - Page 7

• Manufacturer Part Number: ADA4424
• Description: 6-Channel SD/ED/HD Video Filter with Charge Pump
• Manufacturer: AD [Analog Devices]

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 4. Pin Function Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10, 29
11
12
13
14
15
16
17
18
19, 21
20
22
23
24
25
26
27
28
30
31
Mnemonic
GND5
D1
D2
D3
S
Y_IN
VDD3_SD
SD_ENABLE
C_IN
GND3
HY_IN
FC_SEL
HPb_IN
HPr_IN
HD_ENABLE
MODE0
OFFSET_ENB
VDD3_CP
C1a, C1b
GND_CP
C2/CP_OUT
MODE1
VDD3_HD
HPr_OUT
HPb_OUT
VSS_HD
HY_OUT
C_OUT
CVBS_OUT
Description
Ground Pin for 5 V Supply.
D-Terminal Vertical Resolution Selection Input.
D-Terminal Scan Selection Input.
D-Terminal Aspect Ratio Selection Input.
S-Terminal Aspect Ratio Selection Input.
SD Luma (Y) Input.
3.3 V Supply Pin for SD Filter Section.
Output Enable Pin for SD (Y, C, CVBS).
SD Chroma (C) Input.
Ground Pins for 3.3 V Supply.
ED/HD Y Component Input.
Filter Corner Frequency Selection Pin for HY, HPb, HPr Channels.
ED/HD Pb Component Input.
ED/HD Pr Component Input.
Output Enable Pin for ED/HD (HY, HPb, HPr).
This pin selects sync tip or back porch sampling when MODE1 = 0 and selects high or low fixed offset
subtraction when MODE1 = 1.
Offset Cancellation Enable Pin.
3.3 V Supply Pins for Charge Pump Section.
Charge Pump Capacitor C1 Connection Pin.
Ground Pin for 3.3 V Charge Pump Supply.
Charge Pump Output Pin. Connect Capacitor C2 from this pin to ground.
Selects Automatic or Fixed Offset Subtraction Mode.
3.3 V Supply Pin for ED/HD Filter Section.
ED/HD Pr Component Output.
ED/HD Pb Component Output.
Negative Supply Pin for ED/HD Filter Section. This pin should be connected to the charge pump output
(Pin 22), as shown in Figure 18.
ED/HD Y Component Output.
SD Chroma (C) Output.
SD Composite Video (CVBS) Output.
OFFSET_ENB
HD_ENABLE
SD_ENABLE
VDD3_SD
VDD3_CP
FC_SEL
HPb_IN
MODE0
Figure 3. Pin Configuration, Top View
HPr_IN
HY_IN
GND5
GND3
C_IN
Y_IN
C1a
D1
D2
D3
S
10
11
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
9
Rev. C | Page 7 of 16
ADA4424-6
(Not to Scale)
TOP VIEW
38
37
36
35
34
33
32
27
26
25
24
22
20
31
30
29
28
23
21
VDD5
L1_OUT
L2_OUT
L3_OUT
S1/S2_OUT
Y_OUT
VSS_SD
CVBS_OUT
C_OUT
GND3
HY_OUT
VSS_HD
HPb_OUT
HPr_OUT
VDD3_HD
MODE1
C2/CP_OUT
C1b
GND_CP
ADA4424-6