Specifications
WM_PRJ_Q2501_PTS_001 – 003
March 2004
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2.6.7 Buzzer interface
The buzzer output (BUZ) is an open collector output driven by a PWM which
allows a direct connection to a buzzer supplied with VBATT.
PWM
BUZ
Buzzer
VBATT
Figure 17: Buzzer output
Pin description
Signal Pin # I/O I/O type Description
BUZ 69 O Open
collector
Buzzer output