SI3000 查看數據表（PDF） - Silicon Laboratories

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SI3000

VOICEBAND CODEC WITH MICROPHONE/SPEAKER DRIVE

Silicon Laboratories 

Si3000

Register 2. Control 2

Bit

D7

D6

Name

Type

Reset Settings = 0000_0000

D5

D4

D3

D2

D1

D0

HPFD

PLL

DL1

DL2

R/W

R/W

R/W

R/W

Bit

Name

Function

7:5

Reserved Read returns zero.

4

HPFD

High Pass Filter (HPF) Disable.

1 = HPF disabled

0 = HPF enabled

3

PLL

PLL Divide by 10.

1 = Sets final stage of PLL to divide by 10.

0 = Sets final stage of PLL to divide by 5.

2

DL1

Digital Loopback.

1 = Enables digital loopback (DAC analog out ADC analog in).

0 = Normal operation

1

DL2

Digital Loopback.

1 = Enables digital loopback (DAC one bit ADC one bit).

0 = Normal operation

0

Reserved Read returns zero.

Rev. 1.4

21

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