Kenwood NX-3400 Service Manual page 22

2.5.3 DISPLAY unit (XC1-209K-02 B/2)
Pin No. Name I/O
1 EMG I Emergency input
2 GND - GND
3 SIDE2 I Side 2 input
4 SIDE1 I Side 1 input
5 PTT I PTT input
6 NC - No connection
2.5.4 14Pin Universal Connector Specification
Pin Signal
Pin Name I/O
No. Type
1 SSW I Digital
2 SP+ O Analog BTL output for external speaker
3 SP- O Analog
4 MSW I Digital
5 EMC I Analog External MIC input
VBUS Analog USB VBUS(5V) input
6 ME - -
7 PTT I Digital
8 PF I Analog Programmable function key input
9 OPT I Digital
10 GND - -
1-22 (No.RA070<Rev.001>)
Function
CN301
Description
Ext/Int speaker switch input
Internal Pull Up@3.2V
MaxCurrent 310uA
Ext/Int MIC switch Input External Pull Up
@3.2V 47kohm
& External Pull Up@5.0V 100kohm
MIC Ground
Ext PTT switch input
Internal Pull Up@3.2V 10.6kohm~47.1kohm
(Pull Up:3.2V/8.2k)
MIC identification
External Pull Up@5.0V 2.2kohm
Ground
Rating and Condition
Parameter Min
VIH 2.5
VIL 0.0
[ 8 ohm load ]
Max output power -
(1kHz , Batt=7.5V) -
DC Bias -
Allowable Frequency 300
[ 16 ohm load ]
Max output power -
(1kHz , Batt=7.5V) -
DC Bias -
Allowable Frequency 300
VIH 3.5
VIL 0.0
Audio Level 7.7
(STD deviation) -
Input impedance -
DC Bias -
Allowable Frequency 300
VIH 4.8
VIL 0.0
- -
VIH 2.5
VIL 0.0
V(PF2) 3.5
V(PF1) 2.5
V(BOTH) 1.5
V(FIPS) 0.0
VIH 4.0
VIL 0.0
- -
Typ Max Unit
- 5.3 V
- 0.15 V
1.2 1.5 W
- -
2.6 - V
- 3000 Hz
0.8 1.0 W
- - -
2.6 - V
- 3000 Hz
- 5.3 V
- 0.15 V
12.5 17.3 mV
- - -
2.2 - kohm
1.5 - V
- 3000 Hz
- 5.3 V
- 0.50 V
- - -
- 5.3 V
- 0.40 V
- 3.9 V
- 3.5 V
- 2.5 V
- 1.5 V
- 5.3 V
- 0.4 V
- - -