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SM8222B

Features: · Conforms to TR-NWT-000030 and SR-TSV- 002476 (Bellcore) standards· Call waiting· FSK demodulator· Ring signal detect circuit built-in· High input sensitivity· Input gain adjust circuit built-in· Power-down mode· Crystal oscillator circuit built-in· Single supply operation· Microcontrol...

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SeekIC No. : 004494066 Detail

SM8222B: Features: · Conforms to TR-NWT-000030 and SR-TSV- 002476 (Bellcore) standards· Call waiting· FSK demodulator· Ring signal detect circuit built-in· High input sensitivity· Input gain adjust circuit b...

SM8222B Data Sheet

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Part Number:
SM8222B
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: 2025/12/7

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Product Details

Description



Features:

·  Conforms to TR-NWT-000030 and SR-TSV- 002476 (Bellcore) standards
·  Call waiting
·  FSK demodulator
·  Ring signal detect circuit built-in
·  High input sensitivity
·  Input gain adjust circuit built-in
·  Power-down mode
·  Crystal oscillator circuit built-in
·  Single supply operation
·  Microcontroller I/O interface
·  Molybdenum-gate CMOS process
·  24-pin SOP and 24-pin DIP packages
·  SM8222A : 2.7 to 3.3V operation
·  SM8222B : 4.5 to 5.5V operation


Application

·  Telephones that display dialer number before and during conversation
·  Adapters to display dialer number before and during conversation


Pinout

Connection Diagram


Specifications

Parameter
Symbol
 Condition
Rating
Unit
Supply voltage range
VDD
 SM8222A
-0.5 to 5.0
V
SM8222B
-0.5 to 7.0
V
Input voltage range
VIN
  
− 0.3 to VDD + 0.3
V
Input current
IIN
  
40
mA
Power dissipation
PD
  
44
mW
Storage temperature range
Tstg
  
-40to 125



Description

The SM8222A/SM8222B is a calling number identification (caller ID) and call waiting signal (dual tone signal) receiver decoder IC that conforms with the TRNWT- 000030 and SR-TSV-002476 (Bellcore) dialer telephone number display standards. It is implemented in CMOS and incorporates a power-down function for low power operation.




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