TP5089N CMOS IC National Semiconductor
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Manufacturer: National Semiconductor
Part Number: TP5089N
Package: Dip
Number Leads/Terminals: 16
Price: $8.75
3997 available for immediate delivery
Code: IC604APE
Weight: 0.04oz
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Additional Information
DESCRIPTION / ADDITIONAL INFORMATIONDTMF (TOUCH-TONE) Generator
Interfaces directly to standard telephone keypad to produce dual tone multi-frequency pairs for tone dialing systems.
Features:
- 3.5V±10V operation when generating tones
- 2V operation of keyscan and MUTE logic
- Static sensing of key closures or logic inputs
- On-chip 3.579545 MHz crystal-controlled oscillator
- Output amplitudes proportional to supply voltage
- High group pre-emphasis
- Low harmonic distortion
- Open emitter-follower low-impedance output
- SINGLE TONE INHIBIT pin
Electrical Characteristics
(VDD = 3.5V to 10V, TA = 0°C to 60°C by correlation with 100% electrical testing at TA = 25°C):
Minimum Operating Voltage for generating tones: 3.5V min.
Operating Current:
- Idle: 2.5uA max.
- Generating Tones: 2.5mA max.
Input Low Level: 0.2VDD max.
Input High Level: 0.8VDD min.
Output Amplitude Low Group (RL = 240Ω, VDD = 3.5V): 190mVrms min. ; 340mVrms max.
High Group Pre-Emphasis: 2.2dB min. ; 3.2dB max.
Manufactured by: National Semi
Part Number: TP5089N
Full Datasheet: TP5089N