參數(shù)資料
型號: AS3502
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: 圓形連接器
英文描述: Circular Connector; No. of Contacts:3; Series:; Body Material:Aluminum Alloy; Connecting Termination:Solder; Connector Shell Size:22; Circular Contact Gender:Pin; Circular Shell Style:Box Mount Receptacle; Insert Arrangement:22-9 RoHS Compliant: No
中文描述: 13位線性編解碼器特征與模擬前端模塊
文件頁數(shù): 18/29頁
文件大?。?/td> 364K
代理商: AS3502
REV. M
Page 18
September 1998
AS3502
13) VOLUME CONTROL REGISTER 2
This register contains the remaining two bits of the second frequency coefficient, and coarse and fine tone volume
control data for the receive direction.
V2
D7
D6
D5
D4
D3
D2
D1
D0
Name
0
0
V23
V22
V21
V20
F29
F28
Default
X
X
X
X
X
X
X
X
Bit No
Symbol
Name and Description
D5-D3
V23-V21
Receive Tone Coarse Volume Control ( V2C)
V23
V22
0
0
0
0
0
1
0
1
1
0
1
0
V21
0
1
0
1
0
1
Attenuation
- 10 dB
- 16 dB
- 22 dB
- 28 dB
- 34 dB
- 40 dB
D2
V20
Sine Tone Fine Volume Control (V2F)
V20
Attenuation
0
0 dB
1
- 2.5 dB
In transmit direction the sineoutput value depends on V2F and DGX:
VOUT
SINE
= 3.8 dBm + V2F + DGX
(dBm0)
VOUT
DTMF ROW TONE
= -2.2dBm + DGX
(dBm0)
VOUT
DTMFCOLUMN TONE
= -4.7dBm + DGX
(dBm0)
In receive direction the sine output value on earpiece and speaker depends on V2C, V1
and AGR:
VOUT
EP
= 3.8 dBm + V2C + V2F+ AGR
(dBm)
VOUT
SP
= 3.8 dBm + V2C + V2F+ 3dB
(dBm)
These bits are the two most significant bits of the 10-bit frequency coefficient.
D1-D0
F29-F28
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