MOSEL VITELIC
3. Cascade Application
MSS0605
R1
VDD
OSC
COUT
TG
STP
Interrupt
VSS
R1'
VDD
S
OSC
COUT
T
TG
Interrupt
VSS
4. CDS Application
R1
VDD
S
OSC
COUT
TG
T
VSS
5. Edge Mode Change To Level Mode for TG0
( The pin " REP " connects to VDD )
R1
VDD
S
OSC
COUT
T
TG0
REP
VSS
Note: 1. R1 = 1.2 M Ω, T(transistor) = ß > 130, R2 = 470 Ω , S(speaker) = 1/4 w, 8 Ω; all typical.
2. R2=470Ω ( typical ) to bypass extra current into base to get rid of waveform saturation
on collector .
3. Piezo buzzer resonant frequency being around 1K Hz is recommended.
4. Input switch could be replaced by CDS.
5.COUT,VOUT1,VOUT2 are tristate during stand by state.
MOSEL
No. 1, R&D I Rd., Hsinchu Science-Based Industrial Park, Hsinchu,
Taiwan, R.O.C.
TEL:886-3-577-0055 FAX:886-3-577-2788
3910 North First street, San Jose, CA 95134-1501 U.S.A.
TEL:1-408-433-6000 FAX:1-408-433-0952
Service phone : 886-3-5784732
Reserves the right to make changes to above content and product without notice .
7
PID225B 04/94