Kenwood NX-3200, Service Manual

Page: 25 / 210

(No.RA058<Rev.001>)1-25
2.5.4 14Pin Universal Connector Specification
Pin
No.
Pin Name I/O
Signal
Type
Description
Rating and Condition
Parameter Min Typ Max Unit
1 SSW I Digital Ext/Int speaker switch input
Internal Pull Up@1.8V
MaxCurrent 310uA VIH 2.5 - 5.3 V
VIL 0.0 - 0.15 V
2 SP+ O Analog BTL output for external speaker [ 8 ohm load ]
Max output power
- 1.2 1.5 W
(1kHz , Batt=7.5V) - - -
DC Bias - 2.6 - V
Allowable Frequency 300 - 3000 Hz
3 SP- O Analog [ 16 ohm load ]
Max output power
- 0.8 1.0 W
(1kHz , Batt=7.5V) - - - -
DC Bias - 2.6 - V
Allowable Frequency 300 - 3000 Hz
4 MSW I Digital Ext/Int MIC switch Input External Pull Up
@3.2V 47kohm
& External Pull Up@5.0V 100kohm VIH 3.5 - 5.3 V
VIL 0.0 - 0.15 V
5 EMC I Analog External MIC input Audio Level 7.7 12.5 17.3 mV
(STD deviation) - - - -
Input impedance - 2.2 - kohm
DC Bias - 3.2 - V
Allowable Frequency 300 - 3000 Hz
VBUS Analog USB VBUS(5V) input VIH 4.75 - 5.25 V
VIL 0.0 - 0.50 V
6 ME - - MIC Ground - - - - -
7 PTT I Digital Ext PTT switch input
Internal Pull Up@3.2V 10.6kohm~47.1kohm VIH 2.5 - 5.3 V
VIL 0.0 - 0.40 V
8 PF I Analog Programmable function key input
(Pull Up:3.2V/8.2k)
V(PF2) 3.5 - 3.94 V
V(PF1) 2.5 - 3.5 V
V(BOTH) 1.5 - 2.5 V
V(FIPS) 0.0 - 1.5 V
9 OPT I Digital MIC identification
External Pull Up@5.0V 2.2kohm VIH 4.0 - 5.3 V
VIL 0.0 - 0.4 V
10 GND - - Ground - - - - -
11 5U - Power 5V power supply output Output Voltage
(Iout = 100mA) 4.9 5.0 5.1 V
Maximum Current - - 0.2 A
12 TXD O Digital Serial data output
CMOS VOH(Io=-5mA) 4.1 - 5.1 V
VOL(Io=5mA) 0.0 - 0.8 V
Baud Rate - - 1.1875 Mbps
USB_DP I/O Analog USB DP VIH 2.7 - 3.6 V
VIL - - 0.8 V
VOH 2.8 - 3.5 V
VOL 0.0 - 0.3 V
Baud Rate
(Full-Speed) - - 12 Mbps