Datasheet

Clamp
CH1 A/D
Line-Locked
Sampling Clock
VI_4_A
M
U
X
VI_1_B
VI_1_C
M
U
X
VI_2_A
VI_2_B
VI_2_C
M
U
X
VI_3_A
VI_3_B
VI_3_C
11-Bit
ADC
Clamp
Clamp
Clamp
VI_1_A
I/O
PGA
CVBS/
Pb/C
CVBS/
Y
CVBS/
Pr/C
CVBS/
Y
M
U
X
PGA
CH2 A/D
11-Bit
ADC
PGA
Analog Front End
TVP5147M1
SLES140G –JULY 2005–REVISED FEBRUARY 2012 www.ti.com
2 Functional Description
2.1 Analog Processing and A/D Converters
Figure 2-1 shows a functional diagram of the analog processors and A/D converters, which provide the
analog interface to all video inputs. It accepts up to ten inputs and performs source selection, video
clamping, video amplification, A/D conversion, and gain and offset adjustments to center the digitized
video signal. The TVP5147M1 supports one analog video output for the selected analog input video.
Figure 2-1. Analog Processors and A/D Converters
16 Functional Description Copyright © 2005–2012, Texas Instruments Incorporated
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