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KS58006 - TONE/PULSE DIALER WITH REDIAL

General Description

Pin No Symbol Description Keyboard (R1, R2, R3, R4, C1, C2, C3, C4) These inputs can be interfaced to an XY matrix keyboard.

C1-C4 & R1-R4 are set to low at On Hook (HS = high).

Key Features

  • Tone/Pulse switchable (slide switch).
  • 32-digit capacity for redial.
  • Automatic mix redialing ( last number dial ) of PULSE → DTMF with multiple auto access pause.
  • PABX auto-pause for 3.5 sec.
  • 4 X 4 or ( 2 of 8 ) keyboard available.
  • Two key single tone operation.
  • Operating Voltage : 2.0 ~ 5.5V.
  • Numbers dialed manually after redial are cascadable and stored as additional numbers for next redialing.
  • Uses inexpensive T.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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KS58006 TONE/PULSE DIALER WITH REDIAL INTRODUCTION The KS58006 is DTMF/PULSE switchable dialer with a 32-digit redial which can be done using a slide switch. All necessary dual-tone frequencies are derived from a 3.579545 MHz TV crystal or ceramic resonator providing very high accuracy and stability. The required sinusoidal wave form for each individual tone is digitally synthesized on the chip. The generated wave form has very low total harmonic distortion (7% max). A voltage reference is generated on the chip which is stable over the operating voltage and temperature range and regulates the single levels of the dual tone to meet telephone industry specifications.