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PAMS
Technical Documentation
NSE–3
System Module
Original 11/97
Page 3 – 30
External Audio Connections
The external audio connections are presented in figure 16. A headset can
be connected directly to the system connector. The headset microphone
bias is supplied from COBBA AUXOUT output and fed to microphone
through XMIC line. The 330ohm resistor from SGND line to AGND pro-
vides a return path for the bias current.
XEAR
SGN
D
47R
47R
330R
10
m
10
m
33n
33n
HeadDet
H
F
HFC
M
47k
2.8 V
MIC1
N
MIC1
P
33n
33n
MIC3
N
MIC3
P
XMI
C
1u
22k
MAD
1u
22k
1m
AUX-
OUT
EAD
CCONT
2k2
2.8 V
47k
2k2
2k2
Base-
band
47R
COBBA
HookDet
Summary of Contents for NSE-3 SERIES
Page 3: ...NSE 3 SeriesTransceivers PAMS Technical Documentation Original 11 97 Chapter 1 Foreword ...
Page 7: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Chapter 3 System Module ...
Page 80: ...PAMS Technical Documentation Original 11 97 Chapter 4 UI Module UE4 ...
Page 83: ...PAMS Technical Documentation UI Module UE4 Page 4 4 Original 11 97 Baseband Block Diagram ...
Page 99: ...UIF Module UE4 Original 11 97 4 A3 4 Layout Diagram of UE4 Version 10 ...
Page 100: ...PAMS Technical Documentation Original 08 96 Appendix 1 TRANSCEIVER NSE 3NX ...
Page 139: ...PAMS Technical Documentation Original 11 97 HFU 2 ...
Page 146: ...PAMS Technical Documentation HFU 2 Page 8 Original 11 97 Exploded View of HFU 2 3 2 4 5 1 ...
Page 153: ...PAMS Technical Documentation HFU 2 Page 15 Original 11 97 This page intentionally left blank ...
Page 154: ...PAMS Technical Documentation Original 11 97 CARK 64 Installation Guide ...
Page 158: ...PAMS Technical Documentation CARK 64 Page 5 Original 11 97 This page intentionally left blank ...
Page 159: ...PAMS Technical Documentation Original 11 97 CARK 91 Installation Guide ...
Page 167: ...PAMS Technical Documentation CARK 91 Page 9 Original 11 97 This page intentionally left blank ...
Page 168: ...NSE K B 3 Series Transceivers PAMS Technical Documentation Original 11 97 Service Tools ...
Page 193: ...NSE 3 System Module UP8T Original 11 97 3 A3 1 Block Diagram of System RF Blocks ...
Page 203: ...NSE 3 Series Transceivers PAMS Technical Documentation Original 11 97 Tuning Instructions ...