[AK4627]
Addr Register Name
09H ATT speed
D7
0
D6
0
D5
ATS1
0
D4
ATS0
0
D3
PDDA3
0
D2
PDDA2
0
D1
PDDA1
0
D0
RSTN
1
& Power Down Control
Default
0
0
RSTN: Internal timing reset
0: Reset. DZF1-2 pins go to “H”, but registers are not initialized.
1: Normal operation
ATS1-0: Digital attenuator transition time setting (Table 13)
Initial: “00”, mode 0
PDDA3-1: Power-down control (0: Power-up, 1: Power-down)
PDDA1: Power down control of DAC1
PDDA2: Power down control of DAC2
PDDA3: Power down control of DAC3
Addr Register Name
0AH Zero detect
Default
D7
0
0
D6
DZFM3
0
D5
DZFM2
1
D4
DZFM1
1
D3
D2
D1
D0
PWDAN
1
DZFM0 PWVRN PWADN
1
1
1
PWDAN: Power-down control of DAC1-3
0: Power-down
1: Normal operation
PWADN: Power-down control of ADC
0: Power-down
1: Normal operation
PWVRN: Power-down control of reference voltage
0: Power-down
1: Normal operation
DZFM3-0: Zero detect mode select (Table 11)
Initial: “0111”, disable
Addr Register Name
0DH Power Down Control
Default
D7
0
0
D6
0
0
D5
0
0
D4
0
0
D3
0
0
D2
0
0
D1
D0
PDAD2 PDAD1
0
0
PDAD2-1: Power-down control (0: Power-up, 1: Power-down)
PDAD1: Power down control of ADC1
PDAD2: Power down control of ADC2
MS1278-E-02
2012/03
- 39 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
