參數(shù)資料
型號: XE3006
廠商: Electronic Theatre Controls, Inc.
元件分類: Codec
英文描述: Low-Power Audio CODEC
中文描述: 低功耗音頻CODEC
文件頁數(shù): 5/32頁
文件大?。?/td> 465K
代理商: XE3006
Data Sheet
XE3005/XE3006
5
D0212-116
2.1.2
MIC Input
The programmable pre-amplifier and the microphone bias sources VREG11 or VREG16 are optimized to operate
with electret microphones. VREG11 provides a 1.1 V reference voltage. The VREG11 can deliver up to 50 μA.
VREG11 is enabled through control register E. VREG16 is a regulated voltage of typically 1.6V and can deliver
up to 1 mA.VREG16 is always enabled.
GND
Vcc
0.1μF
1μF
1μF
820k
5
6
7
8
9
10
11
12
VDD
NRESET
VSSA
VREG16
VREF
VSSA
VSSD
VREG11
AIN
4
1k
50 pF (gain is 5)
200 pF (gain is 20)
X
Figure 3: typical microphone interface (1.1 V / 50 uA bias through VREG11)
GND
50 pF (gain is 5)
200 pF (gain is 20)
5
6
7
8
9
10
11
12
VDD
NRESET
VSSA
VREG16
VREF
VSSA
VSSD
VREG11
AIN
4
1k
*
*depends on microphone type
X
Vcc
0.1μF
1μF
1μF
820k
Figure 4: typical microphone interface (1.6 V / 1 mA bias through VREG16)
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