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SA9401

Features: · Generates PBX supervisory tones in PCM format· Integrated time slot allocation circuitry· No noticeable level changes in tones· Frame synch. signal source (internal/ external) selectable· Eight tone programs· Eight independent PCM tone streams within each program· Each of these tone st...

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SeekIC No. : 004483843 Detail

SA9401: Features: · Generates PBX supervisory tones in PCM format· Integrated time slot allocation circuitry· No noticeable level changes in tones· Frame synch. signal source (internal/ external) selectable...

SA9401 Data Sheet

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Part Number:
SA9401
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

· Generates PBX supervisory tones in PCM format
· Integrated time slot allocation circuitry
· No noticeable level changes in tones
· Frame synch. signal source (internal/ external) selectable
· Eight tone programs
· Eight independent PCM tone streams within each program
· Each of these tone streams selectable from 16 tone blocks
· Seperate Intrude Tone for each program
· Choice of clock frequencies
· Watchdog facility
· Low power CMOS technology


Pinout

Connection Diagram


Specifications

Parameter Symbol Min Max Unit
Supply Voltage VDD -0.3 7.0 V
Voltage on any I/O pin VI/V0 -0.3 VDD +0.3 V
Current on any I/O pin II/I0 -10 +10 mA
Storage Temperature TSIG -55 +125 °C
Package Power Dissipation PD   1000 mW


* Stress above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This a stress rating only. Functional operation of the device at these or any other condition above those inidcated in the operational sections of this specification, is not implied. Exposure to Absolute Maximum Ratings for extended periods may effect device reliability.




Description

The SA9401 operates in conjunction with a standard EPROM to generate the system tone plans for the PABX systems of most major countries.

The high level of programmability allows the SA9401 to satisfy a wide variety of tone plans. Furthermore by providing three inputs to select between one of eight tone programs during initialisation, the device effectively facilitates the design of a universally programmable "PABX Processor Card". Because the tone program inputs are latched at the start of each PCM frame the SA9401 minimises the possibility of glitches.

The SA9401 can also generate the PCM Frame synchronising reference signal if required.




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