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[AK4675]
MS0963-E-00
2008/05
- 170 -
Addr
Register
Name
D7 D6 D5 D4 D3 D2 D1 D0
01H
Power Management 1
GDDLY
0 0 0
0 0
0
PMSPK
R/W
R/W RD RD RD RD RD RD R/W
Default
0 0 0 0 0 0 0 0
PMSPK: Power Management for Speaker-Amp
0: Power OFF (default)
1: Power ON
When PMSP bit is “0”, the SPP pin and SPN pin become Hi-Z.
GDDLY: Gate driver delay setting for dulling output wave of Class-D
0: 15ns (default)
1: 60ns
Delay increase, EMI improve, Efficiency down when “0”
å
“1”
Addr
Register
Name
D7 D6 D5 D4 D3 D2 D1 D0
02H
Power
Management
2 0 0 0 0 0 0 0
PMV1
R/W
RD RD RD RD RD RD RD R/W
Default
0 0 0 0 0 0 0 0
PMV1: Power Management for Input Volume #1
0: Power OFF (default)
1: Power ON
All blocks of HP/SPK-Amp blocks can be powered-down by setting the PDNA pin to “L” regardless of register
values setup. In this case, all control register values of HP/SPK-Amp blocks are initilized.
When all registers in address 00H, 01H and 02H are set to “0”, all blocks of HP/SPK-Amp blocks are
powered-down. The register values of HP/SPK-Amp blocks remain unchanged. Power supply current is 18 A(typ).
For fully shut down, set the PDNA pin to “L”.