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NTE1690 Telephone DTMF Dialer

Model:

NTE1690

 | Catalog #: 55052851
Price:
$8.84
$8.84
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  • Dual banana jack at the other end will accept a second wrist strap (not included)
  • In-line 1M ohm resistor
  • 2 sewn-in pockets that can serve as carry pouches or work-holders
  • Includes an anti-static wrist strap with 6-ft. cord and a 10-ft. ground cord with detachable clip

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  • Full auto-ranging with manual range override
  • Diode and transistor modes and continuity check with beeper
  • Relative and logic modes
  • AC voltage display mode
  • Unit has auto polarity, data hold, low battery indicator, and overload indicator
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Product Summary

The NTE1690 is a monolithic integrated circuit in a 16−lead DIP-type package fabricated using CMOS process and is designed specifically for integrated tone-dialer applications. It offers high-accuracy tones. Digital divider logic, resistive ladder network and CMOS operational amplifier are on a single chip. It uses an inexpensive 3.579545MHz television color-burst crystal. Invalid key entry can result in either single tone or no tone.

  • VDD = 10.5V
  • Any input relative to VDD (except pin 10), VN = 0.3V
  • Any input relative to GND (except pin 10), VN = -0.3V
  • PD = 500mW
  • Topr = −30° to +60°C
  • Tstg = −55° to +150°C
Pricing and availability: Please note that all prices are subject to change without prior notice. Prices advertised on this site are for online orders only. Prices on some items may differ from those advertised in RadioShack stores. All merchandise may not be available at all stores, and all stores may not participate in all sales promotions. We recommend you contact the store to confirm product availability and price.

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By phone: 1-800-843-7422

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