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SA2531J

Features: · Speech circuit, LD/MF Repertory Dialler and Tone Ringer on one 28 pin CMOS chip· Net 4 compatible· Soft clip to avoid harsh distortion· Line Loss Compensation selectable by pin option· Power down mode· Versatile applications for different PTT demands· 31 digit last number redial· Slidi...

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SeekIC No. : 004483595 Detail

SA2531J: Features: · Speech circuit, LD/MF Repertory Dialler and Tone Ringer on one 28 pin CMOS chip· Net 4 compatible· Soft clip to avoid harsh distortion· Line Loss Compensation selectable by pin option· P...

SA2531J Data Sheet

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Part Number:
SA2531J
Supply Ability:
5000

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

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Upload time: 2025/12/26

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Product Details

Description



Features:

· Speech circuit, LD/MF Repertory Dialler and Tone Ringer on one 28 pin CMOS chip
· Net 4 compatible
· Soft clip to avoid harsh distortion
· Line Loss Compensation selectable by pin option
· Power down mode
· Versatile applications for different PTT demands
· 31 digit last number redial
· Sliding Cursor protocol with comparison
· 2 Flash keys, 100 ms and 280 ms (option600 ms)
· Ring frequency discrimination
· Operating range from 13 to 100 mA(down to 5 mA with reduced performance)
· Volume control of receive signalExcept "D")
· Low noise (max. -72dBmp)
· Real or Complex impedance on chip programmable
· LD/MF switchable dialling
· 14 memories, 4 direct/10 indirect or 10direct
· Pause key for 2, 3 or 6 sec Auto Pause or Wait function
· On chip MF filter (CEPT CS 203 compatible)
· 3-tone melody generator


Pinout

Connection Diagram


Specifications

Positive Supply Voltage.........................-0.3VVDD7V
Input current.................................. ±25mA
Input Voltage (LS)........................... -0.3VVIN10V
Input Voltage (LI, CS) ..........................-0.3VVIN8V
Input Voltage (STB, RI)...................... -2VVVINVDD+0.3V
Input Voltage (MO)...........................-0.3VVIN35V
Digital Input Voltage   ......................-0.3VVINVDD+0.3V
Electrostatic Discharge ............................. ±800V
Storage Temperature  ........................ -65°C to +125°C


Description

The SA2531 is a CMOS integrated circuit that contains all the functions needed to form a high performance electronic telephone.

The  SA2531  incorporates LD/MF repertory dialling, melody generation, ring frequency discrimination and a high quality speech circuit.A RAM is on chip for a 31 digit last number redial and 14 memories each containing up to 21 digits. The sliding cursor procedure makes Last Number Redial easy behind a PABX.

The SA2531 (exept the SA2531D) incorporates a volume control for the earpiece. The receive volume can be controlled by the VOL key (+4dB) or by the +/- keys (+6dB/-4dB in 5 steps).

The versatility of the  SA2531  circuit is provided by on chip programmability and a few external components. This allows easy adaption to different PTT requirements without changing the PCB of the telephone.




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