AK4710 Datasheet, PDF (13/31 Pages) Asahi Kasei Microsystems – Low Power Single SCART Driver

[AK4710]
■ Normal Operation Mode
To change analog switches, set the MUTE bit to “0”. The AK4710/11 is in power-down mode until the PDN pin = “H”.
The Figure X shows an example of the system timing at the power-down and power-up by the PDN pin.
■ Typical Operation Sequence
Figure 2 shows an example of the system timing at normal operation mode.
PDN pin
“Normal“
“Mute”
“Normal“
MUTE bit
“1” (default)
Video Signal _{No Signal}
Video Detect ^175ms(MAX)
Video Output
Hi-z
“0”
“1”
“0”
Signal In
Active
“1”
No Signal
Hi-z
TVOUT
Charge pump
(GND)
Analog in
50ms(MAX)
(Note21)
50ms(MAX)
Analog in
(Note21)
Note 22. Mute the analog outputs externally if click noise affects the system.
Figure 2. Typical Operating Sequence
Rev. 0.3
- 13 -
2011/07