ak4632 AKM Semiconductor, Inc., ak4632 Datasheet - Page 66
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ak4632
Manufacturer Part Number
ak4632
Description
16-bit ?? Mono Codec With Alc & Mic/spk/video-amp
Manufacturer
AKM Semiconductor, Inc.
Datasheet
1.AK4632.pdf
(70 pages)
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ASAHI KASEI
MS0396-E-00
(Addr:0CH, D6-5)
(Addr:0CH, D4-0)
(Addr:00H, D6)
Video Signal Input and Output
<Example>
(Addr:01H, D7)
VGCA4-0 bits
SAGC1-0 bits
PMVCM bit
VOUT pin
Clocks
When the only video function is used, the clocks are not needed to input.
(1) Power Up of VCOM : PMVCM bit = “0” → “1”
(2) Set up the output circuit(SAGC1-0bits) and GCA(VGCA4-0 bits)
(3 ) Power Up of Video-Amp : PMV bit = “0” → “1”
(4) Power Down of Video-Amp : PMV bit = “1” → “0”
PMV bit
The video signal that is input to VIN pin starts output from VOUT pin.
The output from VOUT pin stops. VOUT pin goes to AVSS.
If any audio functions are not used, VCOM can be powered-down(PMVCM bit =“0”)
X
X X X X X
X X
AVSS
(1)
Clocks can be stopped, if only video output is enable.
(2)
(3)
Figure 55. Video Output Sequence
1
Normal Output
X X X X X
- 66 -
X X
(4)
AVSS
Example:
VGCA : 0dB
PLL Master Mode
Audio Function :No use
VIDEO Output : DC Output
(1) Addr:00H, Data:45H
(2) Addr:0CH, Data:02H
(3) Addr:01H, Data:8BH
(4) Addr:01H, Data:0BH
Video Output
[AK4632]
2005/06
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