AK4953A Datasheet, PDF (67/96 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/HP/SPK-AMP

[AK4953A]
Addr
04H
Register Name
Signal Select 3
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
PTS1 PTS0 MOFF HPM
0
0
R
R
R/W
R/W
R/W
R/W
R
R
0
0
0
1
0
0
0
0
HPM: Headphone Output Select
0: Stereo (default)
1: Mono
When HPM bit = “1”, DAC output signals are output from the headphone amplifier as (L+R)/2.
MOFF: Soft Transition Control of “BEEP → Headphone” Connection ON/OFF
0: Enable (default)
1: Disable
PTS1-0: Soft Transition Time of “BEEP → Headphone” Connection ON/OFF
Default: “01” (Table 43)
Addr
05H
Register Name
Mode Control 1
R/W
Default
D7
D6
D5
D4
D3
D2
PLL3 PLL2 PLL1 PLL0 BCKO HPZ
R/W
R/W
R/W
R/W
R/W
W
0
0
0
0
0
0
D1
DIF1
R/W
1
D0
DIF0
R/W
0
DIF1-0: Audio Interface Format (Table 18)
Default: “10” (MSB justified)
HPZ: Pull-down Setting of HP-Amp
0: Pull-down by a 10Ω(typ) resistor. (Default)
1: Hi-Z
When using HPZ bit, set HPZ bit to “1” before starting a speaker amplifier operation, and then write registers
according to the sequence in “■ Speaker-Amp Output”. Set HPZ bit to “0” before starting a headphone
amplifier operation, and then write registers according to the sequence in “■ Headphone-Amp Output”.
BCKO: Master Mode BICK Output Frequency Setting (Table 11)
PLL3-0: PLL Reference Clock Select (Table 5)
Default: “0000”
MS1252-E-00
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2010/10