Multitone RPR 551IS - Page 90

140µs
100µs
≈8.4ms
125ms
200µs
WHEN MUTE IS PRESSED
1s 30ms
IC2 PIN 3
(CLK) (XL3)
IC3 PIN 33
(SCK) (INTERRUPT)
IC2 PIN 68
(TMI)
IC3 PIN 22
(XL4)
IC2 PIN 26
(E)
IC2 PIN 9
(BEC)
f = 32kHz
1V5
3V
0V
3V
0V
0V
3V
0V
3V
0V
1V3
0V
2s
NOTE: 1. Waveforms are taken in the Battery Economy Mode unless qualified.
RPR 550IS Series
TM1188 Issue 1Page 5 - 20
Figure 5: Decoder Voltages and Waveforms