User Manual

XScopes
User’s Manual
DS-XScopes-3.5 – December, 2014 Page | 7
1. General Overview
1.1 Xprotolab & Xminilab Pin Description
Name
Description
Comment
+5V
+5V Input voltage
Do not apply +5V if using the USB port
-5V
-5V Output voltage
50mA max output
GND
Ground
It is recommended use all ground pins to
reduce voltage offset errors.
+3.3V
+3.3V Output voltage
200mA max output
Logic 0
Digital Channel 0
I2C Sniffer signal: SDA
Logic 1
Digital Channel 1
I2C Sniffer signal: SCL
Logic 2
Digital Channel 2
UART Sniffer signal: RX
Logic 3
Digital Channel 3
UART Sniffer signal: TX
Logic 4
Digital Channel 4
SPI Sniffer signal: /SS
Logic 5
Digital Channel 5
SPI Sniffer signal: MOSI
Logic 6
Digital Channel 6
SPI Sniffer signal: MISO
Logic 7
Digital Channel 7
SPI Sniffer signal: SCK
EXT. T
External Trigger
Digital input, max 5.5V
AWG
Arbitrary Waveform Generator
Output range: +/- 2V
CH2
Analog Channel 2
Input range: -14V to +20V
CH1
Analog Channel 1
Input range: -14V to +20V
PWR
Power up output signal
3.3V signal, 10mA max output
RX
Interface RX input
Connect to host’s TX
TX
Interface TX output
Connect to host’s RX
LNK
Interface link input
3.3V level input, with internal pull up
Table 1: Pin description
Figure 4: Front and Top Signals
Figure 5: Back Signals
K1
K4
K2
K3
K1
K4
K2
K3
K1
K4
K2
K3
Figure 3: Xminilab HW 2.1 & 2.2 Front Signals
Figure 6: Xminilab HW 2.3 Front Signals