USB-1608G User's Guide Functional Details
14
Timer output
The TMR terminal is a pulse width modulation (PWM) timer output that can generate a pulse output with a
programmable frequency in the range of 0.0149 Hz to 32 MHz. The timer output parameters are software
selectable. Figure 10 shows the timer output schematic.
Figure 10. Timer output schematic
Power output
The +5V terminal can output up to 10 mA maximum. You can use this terminal to supply power to external
devices or circuitry.
Caution! The +5V terminal is an output. Do not connect to an external power supply or you may damage the
device and possibly the computer.
Ground
The analog ground (AGND) terminals provide a common ground for all analog channels.
The digital ground (GND) terminals provide a common ground for the digital, counter, timer, and clock
channels and the power terminal.
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