參數資料
型號: CPS1087
英文描述: Analog IC
中文描述: 模擬IC
文件頁數: 26/64頁
文件大?。?/td> 870K
代理商: CPS1087
CSP1027 Voice Band Codec for
Cellular Handset and Modem Applications
Data Sheet
January 2002
Agere Systems Inc.
26
5 Register Information
Tables 7 through 10 describe the programmable registers of the CSP1027 device.
5.1 Codec I/O Control 0 (cioc0) Register
Table 7. Codec I/O Control 0 (cioc0) Register
Bit
15—14
Field
Reg
13
12
11—8
OGSEL
7
6
5
4—0
CDIV2
TEST
ACTIVE
MUTE
IRSEL
INSEL
Field
Reg
TEST
Value
00
0*
1
0*
1
1111
1110
1101
.
.
.
0001
0000*
0*
1
0*
1
0*
1
0 0000
0 0001
0 0010
.
.
.
1 0000*
.
.
.
1 1110
1 1111
Description
Indicates control register 0.
Normal operation.
Testability mode—analog and digital loopback.
Codec set to inactive mode (i.e., powerdown).
Codec set to active mode.
Output gain adjustment of 0 dB.
Output gain adjustment of –3 dB.
Output gain adjustment of –6 dB.
* Value upon reset.
ACTIVE
OGSEL
.
.
.
Output gain adjustment of –42 dB.
Output gain adjustment of –45 dB.
Output signal muted.
Output signal not muted.
Microphone preamplifier input range: 500 mVp.
Microphone preamplifier input range: 160 mVp.
Select microphone input, MICIN.
Select auxiliary input, AUXIN.
Output clock 2, CKO2, disabled.
Output clock 2, CKO2 = ICLK ÷ 1.
Output clock 2, CKO2 = ICLK ÷ 2.
MUTE
IRSEL
INSEL
CDIV2
.
.
.
Output clock 2, CKO2 = ICLK ÷ 16.
.
.
.
Output clock 2, CKO2 = ICLK ÷ 30.
Output clock 2, CKO2 = ICLK ÷ 31.
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