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S5T3170 - LOW POWER DTMF RECEIVER

Description

Pin No 1 2 3 4 5 6 Symbol IN + IN

GS VREF IIN PDN Description Non inverting input of the internal amp.

Inverting input of the internal amp.

Gain Select.

Features

  • Detects all 16 standard tones. Low power consumption: 15mW (Typ) Single power supply: 5V Uses inexpensive 3.58MHz crystal Three state outputs for microprocessor interface Good quality and performance for using in exchange system Power down mode/input inhibit.

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Datasheet Details

Part number S5T3170
Manufacturer Samsung semiconductor
File Size 140.98 KB
Description LOW POWER DTMF RECEIVER
Datasheet download datasheet S5T3170 Datasheet
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LOW POWER DTMF RECEIVER S5T3170 INTRODUCTION The S5T3170 is a complete Dual Tone Multiple Frequency (DTMF) receiver that is fabricated by low power CMOS and the SwitchedCapacitor Filter technology. This LSI consists of band split filters, which separates counting section which verifies the frequency and duration of the received tones before passing the corresponding code to the output bus. It decodes all 16 DTMF tone pairs into a 4bits digital code. The externally required components are minimized by on chip provision of a differential input AMP, clock oscillator and latched three state interface. The on chip clock generator requires only a low cost TV crystal as an external component. 18−DIP−300A 20−SOP−375 FEATURES • • • • • • • Detects all 16 standard tones.
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