W91031

Features: · Compatible with Bellcore TR-NWT-000030 & SR-TSV-002476, British Telecom (BT) SIN227, U.K. Cable Communications Association (CCA) specification· Ring and line reversal detection· Bellcore CPE Alerting Signal (CAS) and BT idle State and Loop State Tone Alerting Signal detection use d...

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W91031 Picture
SeekIC No. : 004545263 Detail

W91031: Features: · Compatible with Bellcore TR-NWT-000030 & SR-TSV-002476, British Telecom (BT) SIN227, U.K. Cable Communications Association (CCA) specification· Ring and line reversal detection· Bell...

floor Price/Ceiling Price

Part Number:
W91031
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: 2024/3/28

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Product Details

Description



Features:

· Compatible with Bellcore TR-NWT-000030 & SR-TSV-002476, British Telecom (BT) SIN227, U.K. Cable Communications Association (CCA) specification
· Ring and line reversal detection
· Bellcore CPE Alerting Signal (CAS) and BT idle State and Loop State Tone Alerting Signal detection use dual tone alerting signal detector
· BELL 202 and CCITT V.23 FSK demodulation with 1200 baud rate
· Use 3.579545 MHz crystal or ceramic resonator
· Low power CMOS technology with sleep mode
· High input sensitivity
· Variable gain input amplifier
· FSK carry detect output
· Two modes for 3-wire FSK data interface
· Packaged in 24-pin 0.6 inch (600 mil) plastic DIP and 24-pin 0.3 inch (300 mil) plastic SOP



Application

· Bellcore Calling Identity Delivery (CID), and BT Calling Line Identity Presentation (CLIP), CCA CLIP systems
· Feature phones
· Phone set adjunct boxes
· FAX and answering machines
· Data base telephone system and Computer Telephony Integration (CTI) systems



Pinout

  Connection Diagram


Specifications

PARAMETER
SYMBOL
RATING
UNITS
Supply Voltage with Respect to VSS
VDD
-0.3 to 6
V
Voltage on Any Pin Other Than Supplies (Note 1)
-0.7 to VDD + 0.7
V
Current on Any Pin Other Than Supplies
0 to 10
mA
Storage Temperature
Tst
-65 to 150
°C
Notes:
1. VDD +0.7 should not exceed the maximum rating of the supply voltage.
2. Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.



Description

The Winbond Caller Identification device W91031, is a low power CMOS integrated circuit used to receive physical layer signals transmitted according to Bellcore and British Telecom (BT) specifications. There are two types of Caller Identifications, the first type is on-hook calling with caller ID message and the second type is call on waiting. The W91031 device provides all the features and functions of the Caller Identification specification for both these types, including FSK demodulation, Tone Alert Signal detection and ring detection. The FSK demodulation function can demodulate Bell 202 and CCITT V.23 Frequency Shift Keying (FSK) with 1200 baud rate. The Tone Alert Signal detect function of W91031 can detect the dual tones of the Bellcore CPE* Tone Alerting Signal (CAS) and the BT idle State and Loop State Tone Alert Signal. The line reversal for BT, ring burst for CCA or ring signal for Bellcore can be detected by the ring detector.

There are two modes of FSK W91031 data output interface. The first mode is a data transfer activated by the device, whose clock and data change depending upon the changing frequency of the FSK analog signal input. The second mode allows a microcontroller to extract 8-bit data from the device serially; the device notifies the micro-controller when 8-bit data has been received.




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