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參數(shù)資料
| 型號： | AD1886A |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | IR Emitting Diode; Power Dissipation, Pd:50mW; Viewing Angle:45 ; Package/Case:SIP; Operating Temperature Range:-25 C to +85 C; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| 中文描述： | AC\u0026#39;97聲卡SoundMAX編解碼器 |
| 文件頁數(shù)： | 27/28頁 |
| 文件大?。?/td> | 281K |
| 代理商： | AD1886A |
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REV. 0
AD1886A
–27–
AC-COUPLING
TO CODEC MIC1 OR MIC2 INPUT
FROM CODEC V
REFOUT
MIC INPUT
1
2
3
4
5
J1
EMC
COMPONENTS
C1
470pF
C2
470pF
L2 600Z
L1 600Z
MIC BIAS
C3
0.22 F
R1
2.2k
Figure 16. Recommended Microphone Input Connections
TO CODEC MIC1 OR MIC2 INPUT
FROM CODEC V
REFOUT
AC-COUPLING
MIC INPUT
1
2
3
4
5
J1
EMC
COMPONENTS
C1
470pF
C2
470pF
L2 600Z
L1 600Z
MIC BIAS
AVDD
U1
PREAMP
AD8531
AC-COUPLING
C3
0.22 F
R1
2.2k
R3
100k
R2
10k
C4
0.22 F
Figure 17. Microphone with Additional External Preamp (20 dB Gain)
LINE OUTPUT CONNECTIONS
The AD1886A Codec provides stereo LINE_OUT signals at a standard 1 V rms level. These signals must be ac-coupled before they
can be connected to an external load. After the ac-coupling, a minimal resistive load is recommended to keep the capacitors properly
biased and reduce clicks and pops when plugging stereo equipment into the output jack. The capacitor values should be selected to
provide a desired frequency response, taking into account the nominal impedance of the external load. To meet the PC99 specifica-
tion for PCs, testing must be performed with a 10 k
load, therefore a minimum of 1
μ
F value is recommended to achieve less than
–3 dB roll-off at 20 Hz.
FROM CODEC LINE_OUT_R
FROM CODEC LINE_OUT_L
J1
L1 600Z
L2 600Z
STEREO LINE_OUT JACK
C1
470pF
C2
470pF
C3
1 F
C4
1 F
R1
47k
R2
47k
Figure 18. Recommended LINE_OUT Connections
PC BEEP INPUT CONNECTIONS
The recommended PC BEEP input circuit is shown below. Under most cases the PC_BEEP signal should be attenuated, filtered and
then ac-coupled into the Codec.
TO CODEC PC_BEEP INPUT
PC_BEEP (FROM ICH)
R1
10k
C2
0.1 F
C1
0.1 F
R2
1k
Figure 19. Recommended PC_BEEP Connections
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD1886AJST | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD1886AJST-REEL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| AD1886AJSTZ | 制造商:Rochester Electronics LLC 功能描述: |
| AD1886AJSTZ-RL | 制造商:Analog Devices 功能描述:Audio Codec EOL061109 |
| AD1886JST | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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