ml6427 Fairchild Semiconductor, ml6427 Datasheet - Page 13

• Manufacturer Part Number: ml6427
• Description: 75w Quad Video Cable Drivers And Filters With Switchable Inputs
• Manufacturer: Fairchild Semiconductor

INPUTS
Bank A:
Bank B:
Other:
10
11
12
2
3
4
7
8
9
CV INU /Y1
CV INF A/Y2
CV INF B/Y3
R IN A/Y4
R IN B/Y5
G IN A/Y6
G IN B/Y7
B IN A/C1
B IN B/C2
SYNCIN
23
Figure 9. Synchronizing the Filter Delay with Fast Blanking or Alpha-Key Signals in OSD Applications
GNDO
RGB, CV filtered path
RGB, CV filtered path
CV unfiltered path, Sync IN (slave mode)
19
GENLOCK/CLOCK
GENERATOR
SYNCOUT
ML6431
GND
24
5
V CCO RGB
ML6427
A/B MUX
(ON-SCREEN DISPLAY)
17
1
PROCESSOR
OSD
13.5MHz/
27MHz
V CCO CV
SWAP CVF SWAP CVU
22
13
FAST BLANKING INTERVAL
OR ALPHA-KEY SIGNAL
Figure 10. Basic Application for PAL
CV OUT 1/Y OUT A
CV OUT 2/Y OUT B
G OUT /Y OUT D
R OUT /Y OUT C
UNFILTERED
B OUT /C OUT
V CC
6
G
R
B
14
21
20
18
16
15
DELAY AT 13.5MHz IS APPROXIMATELY 74ns
SCART/QUAD VIDEO
FILTER AND DRIVER
80ns±10ns DELAY
ML6427
OUTPUTS
Option 1: 2 CV outputs + 2 TV modulator outputs, 1 RGB output
Option 2: 2 CV outputs + 1 TV modulator output, 1 S-video output
Other:
D
220µF
220µF
220µF
220µF
220µF
Sync output (buffered stripped sync)
OPTIONAL FOR DC COUPLED APPLICATIONS
Q
75
75
75
75
75
FILTERED
R OUTPUT
G OUTPUT
B OUTPUT
330pF
330pF
VIDEO CABLES
TO MUX OR
OTHER
PROCESSING
FAST BLANKING
INTERVAL
OR ALPHA-KEY
SIGNAL
ML6427
R/Y
G/Y
B/C
H SYNC OUT
CV/Y
MODULATOR
CV/Y
MODULATOR
13