Kenwood NX-3220 E, Руководство по обслуживанию

Страница: 25 / 204

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