Datasheet Summary
LSI/CSI
LS7501-7510
U ®
LSI puter Systems, Inc. 1235 Walt Whitman Road, Melville, NY 11747 (516) 271-0400 FAX (516) 271-0405
A3800
TONE ACTIVATED TELEPHONE LINE SWITCH CONTROLLERS
Features
:
- Circuit activated by Tone with specific Frequency and Time Duration.
- Frequency and Time Duration values are mask programmable.
- Small Signal (as low as
- 30 DBM) and Digital Level
Tone signals acmodated.
- On-chip active oscillator network and 32,768 Hz
Crystal generates timing.
- Low power consumption.
- +4.0V to +6V operation (VDD
- VSS).
APPLICATIONS:
- Remote telephone line testing
- Remote meter reading
- Security system dialers.
Nov. 1993
CONNECTION DIAGRAM
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