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TP5088, TP5088N, TP5088WM

Table of contents:
Info of TP5088
Info of TP5088N
Info of TP5088WM

TP5088, TP5088N, TP5088WM Selling Leads, Datasheet

MFG:NS Package Cooled:DIP D/C:N/A

TP5088, TP5088N, TP5088WM Datasheet download

Five Points

Part Number: TP5088

MFG: NS

Package Cooled: DIP

D/C: N/A

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TP5088 General Description

This CMOS device provides low cost tone-dialing capability in microprocessor-controlled telephone applications. 4-bit binary data is decoded directly, without the need for conversion to simulated keyboard inputs required by standard DTMF generators. With the TONE ENABLE input low, the oscillator is inhibited and the device is in a low power idle mode. On the low-to-high transition of TONE ENABLE, data is latched into the device and the selected tone pair from the standard DTMF frequencies is generated. An open-drain N-channel transistor provides a MUTE output during tone generation.

TP5088 Maximum Ratings

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Supply Voltage (V_DD-V_SS) ................12V
MUTE Voltage ......................12V
Maximum Voltage at
Any Other Pin............ V_DD +0.3V to V_SS - 0.3V
Operating Temperature, T_A......... -30°C to +70°C
Storage Temperature.......... -55°C to +150°C
Maximum Power Dissipation............ 500 mW

TP5088 Features

· Direct microprocessor interface
· Binary data inputs with latches
· Generates 16 standard tone pairs
· On-chip 3.579545 MHz cry stal-controlled oscillator
· Better than 0.64% frequency accuracy
· High group pre-emphasis
· Low harmonic distortion
· MUTE output interfaces to speech network
· Low power idle mode
· 3.5V±8V operation

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