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KK91531

Features: • 4-bit parallel data input from microcomputer• TTL compatible inputs and outputs• Uses TV crystal standard (3.58 MHz) to derive all frequencies, providing high accuracy and stability• Operating voltage: 2.5 to 5.5 Volts • Selectable M/B ratio• 10 PPS ...

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SeekIC No. : 004385830 Detail

KK91531: Features: • 4-bit parallel data input from microcomputer• TTL compatible inputs and outputs• Uses TV crystal standard (3.58 MHz) to derive all frequencies, providing high accuracy ...

KK91531 Data Sheet

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Part Number:
KK91531
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/27

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Product Details

Description



Features:

• 4-bit parallel data input from microcomputer
• TTL compatible inputs and outputs
• Uses TV crystal standard (3.58 MHz) to derive all frequencies, providing high accuracy and stability
• Operating voltage: 2.5 to 5.5 Volts • Selectable M/B ratio
• 10 PPS dial rate
• DTMF signaling of digits 0 9, *, #, A, B, C, and D
• Pulse signaling of 0 ∼ 9, *, #, and A
• High group tone pre-emphasis: 2 dB
• Low total harmonic distortion in DTMF signaling


Pinout

Connection Diagram


Specifications

Symbol
 Parameter
Value
Unit
VCC
 DC Supply Voltage (Referenced to GND)
-0.3 to +6.0
V
VIN
 DC Input Voltage (Referenced to GND)
-0.3 to VCC +0.3
V
VOUT
 DC Output Voltage (Referenced to GND)
-0.3 to VCC +0.3
V
PD
 Power Dissipation in Still Air
 Plastic DIP**
600
mW
TSTG
 Storage Temperature
-55 to +125
* Maximum Ratings are those values beyond which damage to the device may occur.
   Functional operation should be restricted to the Recommended Operating Conditions.
           ** Derating: -10 mW/ from 65to 70.



Description

The KK91531 provides a 4-bit data input and a handshaking signal to serve as microcomputer interfaces. Under microcomputer control the KK91531 generates both a DTMF signal and a pulse output for telephone dialing. All necessary dual-tone frequencies and dial pulse outputs are derived from the widely used TV crystal standard, providing high accuracy and stability. The required sinusoidal waveform for individual tones is digitally synthesized on the chip, resulting in a waveform with very low total harmonic distortion.




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