Sp/Mic Connector Specification - Kenwood NX-3220 K Service Manual

2.5.4 SP/MIC Connector Specification

Pin Signal
Pin Name I/O
No. Type
1 PTT/RXD I Digital
2 MICI I Analog External MIC input
3 NC - -
4 OPTDET I Digital
5 50J O Power
6 AE - GND
7 TXD O Digital
8 EXTSPDET I Digital
9 SPO O Analog Internal Audio output
Description
PTT/RXD input VIH
Zin=47kohm
VIL
Baud Rate
Audio Level
Zin=1.8kohm@1kHz
DC Bias
Allowable Frequency
Input impedance
- -
External option detection
Zin=74kohm
DC 5V Output Output Voltage
Maximum Output
Current
Ground Maximum Input
Current
TXD output VOH(Io=-5mA)
Zout=47kohm
VOL(Io=5mA)
Baud Rate
External speaker detection VIH
VIL
Maximum Output
Power
Standard Output
Power
Rating and Condition
Parameter Min Typ
2.0
0.0
-
7.7 12.5
300
-
-
4.9
-
4.1
0.0
-
2.5
0.0
-
- 500
Max Unit
- 5.3 V
- 0.8 V
- 1.1875 Mbps
17.3 mV
2.9 V
- 3000 Hz
1.8 - kohm
- - -
5 5.1 V
- 100 mA
700 mA
- 5.1 V
- 0.8 V
- 1.1875 Mbps
- 5.3 V
- 0.40 V
- 1300 mW
- mW
(No.RA053<Rev.001>)1-25