NW6003 Datasheet, PDF (1/21 Pages) Integrated Device Technology – TYPE II CALLER ID DECODER

TYPE II CALLER ID DECODER
NW6003
FEATURES
• 1200 baud Bell 202 and ITU-T V.23 Frequency Shift Keying (FSK)
Demodulation
• Compliant with three specifications:
Bellcore GR-30-CORE & SR-TSV-002476
British Telecom (BT) SIN227 & SIN242
Cable Communication Association (CCA) TW/P&E/312
• Bellcore “CPE Alerting Signal (CAS)” and British Telecom “Idle
State and Loop State Tone Alert Signal” detection
• Ring and line reversal detection
• High sensitivity with -40 dBV input Tone and FSK Detection
• Serial data interface to microcontroller
• 3 V ±10% or 5 V ±10% operation
• Low power CMOS with powerdown mode
• Operating temperature range: -40 °C to +85 °C
• Packages available:
NW6003-XS 24 pin SOIC
(where ‘X’ is the revision ID)
DESCRIPTION
The NW6003 device is a single-chip, 3/5 Volt CMOS caller ID and
call waiting detection circuit. It can receive signals following Bellcore
GR-30-CORE & SR-TSV-002476, BT SIN227 & SIN242, and CCA TW/
P&E/312 specifications.
The NW6003 provides 1200 baud Bell 202 and ITU-T V.23 FSK
demodulation. It allows a microcontroller to extract data from it via a
serial interface. In addition, the NW6003 offers Idle State and Loop
State Tone Alert Signal and line reversal detection capability for BT
CLIP, ring burst detection for the CCA CLIP, and ring and CAS
detection for Bellcore CID.
The device can be used in feature or cordless phones for BT
Calling Line Identity Presentation (CLIP), CCA CLIP and Bellcore
Calling Identity Delivery (CID) systems. It can also be used in caller ID
boxes, modem, fax machines, answering machines, database query
systems and Computer Telephony Integration (CTI) systems.
FUNCTIONAL BLOCK DIAGRAM
TRIGIN
TRIGRC
TRIGOUT
OSCIN
OSCOUT
VREF
CAP
PWDN
IN +
IN -
Oscillator
3 V/5 V
Detector
Bias
Generator
+
-
Line Reverse
and
Ring Detector
Dual Tone
Detector
FSK
Demodulator
Interrupt
Generator
Guard Time
Data/Timing Recovery
INT
STD
ST/GT
EST
CD
DCLK
DATA
DR
GS
FSKEN
Figure 1. Block Diagram
MODE
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INDUSTRIAL TEMPERATURE RANGE
©2002 Integrated Device Technology, Inc.
JULY 2002
DSC-6047/2