si3201 Silicon Laboratories, si3201 Datasheet - Page 45

• Manufacturer Part Number: si3201
• Description: Proslic Programmable Cmos Slic With Ringing/battery Voltage Generation
• Manufacturer: Silicon Laboratories

Register 9. Audio Gain Control
Reset settings = 0000_0000
Name
Type
Bit
3:2
1:0
Bit
7
6
5
4
ARX[1:0]
RXHP
ATX[1:0]
R/W
Name
RXHP
TXHP
D7
RXM
TXM
TXHP
R/W
D6
Receive Path High Pass Filter Disable.
0 = HPF enabled in receive path, RHDF.
1 = HPF bypassed in receive path, RHDF.
Transmit Path High Pass Filter Disable.
0 = HPF enabled in transmit path, THPF.
1 = HPF bypassed in transmit path, THPF.
Transmit Path Mute.
Refer to position of digital mute in Figure 16 on page 35.
0 = Transmit signal passed.
1 = Transmit signal muted.
Receive Path Mute.
Refer to position of digital mute in Figure 16 on page 35.
0 = Receive signal passed.
1 = Receive signal muted.
Analog Transmit Path Gain.
00 = 0 dB
01 = –3.5 dB
10 = 3.5 dB
11 = ATX gain = 0 dB; analog transmit path muted.
Analog Receive Path Gain.
00 = 0 dB
01 = –3.5 dB
10 = 3.5 dB
11 = Analog receive path muted.
TXM
R/W
D5
RXM
Preliminary Rev. 0.96
R/W
D4
D3
ATX[1:0]
R/W
Function
D2
D1
ARX[1:0]
R/W
D0
Si3230
45