7
The TMARK pulse waveform is shown in Figure 1. This signal is a positive logic ,
buffered CMOS level output pulse that transitions from a logic “low” condition to a logic “high”
at a 1 Hz rate. The TMARK output pulse rise times typically less than 2 nanoseconds and the
pulse duration is typically 25milliseconds.
1
3.56V
ch1
M5.00ms
ch1
2.00V
ch1 +Width
25ms
Figure 1. GPS Receiver Time Mark Pulse Waveform.
Содержание PCM-3292
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