AS3715 datasheet(87/159 Pages) AMSOSRAM

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[v1-03] 2015-Aug-10

AS3715 − Register Description

Detailed Register Description

Figure 84:

SD1Voltage

Figure 85:

SD2Voltage

Addr:00h

SD1Voltage

Bit

Bit Name

Default

Access

Bit Description

7sd1_frequ

Selects between high and low frequency

0 : 3MHz

1 : 4MHz

6:0

sd1_vsel

b0000000

The voltage select bits set the DC/DC output voltage

level and power the DC/DC converter down.

00h : DC/DC powered down

01h-40h : V_SD1=0.6V+sd1_vsel*12.5mV

41h-70h : V_SD1=1.4V+(sd1_vsel-40h)*25mV

71h-7Fh : V_SD1=2.6V+(sd1_vsel-70h)*50mV

Addr:01h

SD2Voltage

Bit

Bit Name

Default

Access

Bit Description

sd2_frequ

Selects between high and low frequency

dependent on sd2_fsel

0 : 2MHz if sd2_fsel=0, 3MHz if sd2_fsel=1

1 : 3MHz if sd2_fsel=0, 4MHz if sd2_fsel=1

6:0

sd2_vsel

b0000000

The voltage select bits set the DC/DC output voltage

level and power the DC/DC converter down.

00h : DC/DC powered down

01h-40h : V_SD2=0.6V+sd2_vsel*12.5mV

41h-70h : V_SD2=1.4V+(sd2_vsel-40h)*25mV

71h-7Fh : V_SD2=2.6V+(sd2_vsel-70h)*50mV

AS3715 Datasheet(PDF) 87 Page - ams-OSRAM AG

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