Kenwood NX-3400 Service Manual page 23

Pin Signal
Pin Name I/O
No. Type
11 5U - Power
12 TXD O Digital
USB_DP I/O Analog USB DP
13 RXD I Digital
USB_DM I/O Analog USB DM
14 SMIC I Analog External MIC input
Description
5V power supply output
Serial data output
CMOS
Serial data input
CMOS
External Pull Up@3.2V 10kohm
Rating and Condition
Parameter Min
Output Voltage 4.9
(Iout = 100mA)
Maximum Current -
VOH(Io=-5mA) 4.1
VOL(Io=5mA) 0.0
Baud Rate -
VIH 2.7
VIL -
VOH 2.8
VOL 0.0
Baud Rate -
(Full-Speed)
VIH 2.0
VIL 0.0
Baud Rate -
VIH 2.7
VIL -
VOH 2.8
VOL 0.0
Baud Rate -
(Full-Speed)
Audio Level 7.7
(STD deviation)
Input impedance -
DC Bias -
Allowable Frequency 300
(No.RA070<Rev.001>)1-23
Typ Max Unit
5.0 5.1 V
- 0.2 A
- 5.1 V
- 0.8 V
- 1.1875 Mbps
- 3.6 V
- 0.8 V
- 3.5 V
- 0.3 V
- 12 Mbps
- 5.3 V
- 0.8 V
- 1.1875 Mbps
- 3.6 V
- 0.8 V
- 3.5 V
- 0.3 V
- 12 Mbps
12.5 17.3 mV
2.2 - kohm
1.5 - V
- 3000 Hz