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参数资料
| 型号： | PBL38812 |
| 厂商： | ERICSSON |
| 英文描述： | Voice-switch circuit for Handsfree speakerphone TAM |
| 中文描述： | 语音免提扬声器开关电路谭 |
| 文件页数： | 7/10页 |
| 文件大小： | 133K |
| 代理商： | PBL38812 |
PBL 388 12
7
Figure 7. Transmitter channel input
amplifier used to suppress ripple in the
mic. supply. (CMRR).
R1 = R2
≈
3k
R3 = R4
≈
100k
R5 = R6
C1 = C2
Figure 8. Transmitter and receiver
channel rectifier characteristics.
Figure 10. Transmitter and receiver
channel output dynamics.
Figure 9. Relationship in timing between
the voltage levels at Tx
In
, Tx
Det
and N
Det
0.5
1.0
1.5
V
Rx in
m
V
p
10
V
TxDet
≈
2V
V
ref
-600
-400
-200
+600
+200
+400
V
ref
2.5
5.0
7.5
V
Tx in
RxDet
V
Txin
TxDetout
NDet
F
1
2
3
-
+
F
2
R4
R2
R3
Ref.
R1
R6
R5
C2
C1
C3
C4
R7
16
Mic.
+
V+ (V)
V
(mV)
Txout
2.4
2.6
2.8
3.0
3.2
3.4
100
200
300
400
500
≈
2.4
2.6
2.8
3.0
3.2
3.4
V+ (V)
100
200
300
400
500
V
R
(mV)
xout
≈
相关PDF资料 |
PDF描述 |
|---|---|
| PBL388121SO | Voice-switch circuit for Handsfree speakerphone TAM |
| PBL388131SOT | Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
| PBL38813 | Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
| PBL388131N | Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
| PBL388131SO | Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PBL388121SO | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Voice-switch circuit for Handsfree speakerphone TAM |
| PBL388121SOT | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Voice-switch circuit for Handsfree speakerphone TAM |
| PBL38813 | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
| PBL388131N | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
| PBL388131SO | 制造商:ERICSSON 制造商全称:Ericsson 功能描述:Voice-switched Speakerphone Circuit with built in loudspeaker amplifier |
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