Kenwood NX-5700, Service Manual

Page: 30 / 138

1-30 (No.RA020<Rev.002>)
2.6.4 D-Sub 25-pin connector specification
Pin No. Pin Name I/O Signal Type
Rating and Condition
Parameter Min Typ Max Unit
1 NC - - -
2 RXD1 I Digital Input Voltage Range -30 30 V
Threshold Low 0.5 1.3 V
Threshold High 1.6 2.45 V
Baud Rate - 300k bps
CL 100 pF
3 TXD1 O Digital Voltage Swing (3k
Ω
Load) ±5 ±5.2 V
Baud Rate - 300k bps
CL 100 pF
4 AUXIO9 I/O Digital VIH 4 - 5.2 V
VIL -0.5 - 1 V
VOH (Io=-1.5mA) 4 - 5.2 V
VOL (Io=1.5mA) - - 1.1 V
CTS (RS-232C) I Digital Input Voltage Range -30 30 V
Threshold Low 0.5 1.3 V
Threshold High 1.75 2.6 V
5 DI I Analog Input Voltage range
(STD Deviation) - 0.5 - Vp-p
Freq Response (STD Dev.)
20~9600Hz -3 3 dB
RTS (RS-232C) O Digital Voltage Swing (3k
Ω
Load) ±5 ±5.2 V
6 MI2 I Analog Audio Level (STD Deviation) - 5 - mVrms
Allowable Freq 300 3000 Hz
Input Impedance - 600 -
Ω
7 GND - GND
8 AUXIO8 I/O Digital VIH 4 - 5.2 V
VIL -0.5 - 1 V
VOH (Io=-1.5mA) 4 - 5.2 V
VOL (Io=1.5mA) - - 1.1 V
9 TXD2 O Digital VOH (Io=-1.5mA) 3.7 - 5.2 V
VOL (Io=1.5mA) - - 1.1 V
CL 100 pF
10 RXD2 I Digital VIH 2.8 - 5.2 V
VIL - - 0.65 V
CL 100 pF
11 GND - GND
12 AUXIO7 I/O Digital VIH 4 - 5.2 V
VIL -0.5 - 1 V
VOH (Io=-1.5mA) 3.7 - 5.2 V
VOL (Io=1.5mA) - - 1.1 V
13 AUXIO6 I/O Digital VIH 4 - 5.2 V
VIL -0.5 - 1 V
VOH (Io=-1.5mA) 3.7 - 5.2 V
VOL (Io=1.5mA) - - 1.1 V