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NW6003 Datasheet

TYPE II CALLER ID DECODER

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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
The IDT logo is a registered trademark of Integrated Device Technology, Inc
INDUSTRIAL TEMPERATURE RANGE
©2002 Integrated Device Technology, Inc.
JULY 2002
DSC-6047/2


Integrated Device Technology Electronic Components Datasheet

NW6003 Datasheet

TYPE II CALLER ID DECODER

No Preview Available !

NW6003 TYPE II CALLER ID DECODER
PIN INFORMATION
IN+
IN-
GS
VREF
CAP
TRIGIN
TRIGRC
TRIGOUT
MODE
OSCIN
OSCOUT
GND
1
2
3
4
5
6
7
8
9
10
11
12
INDUSTRIAL TEMPERATURE RANGE
24 VCC
23 ST/GT
22 EST
21 STD
20 INT
19 CD
18 DR
17 DATA
16 DCLK
15 FSKEN
14 PWDN
13 TM
Figure 2. Pin Assignment
Name
IN+
IN-
GS
VREF
CAP
TRIGIN
TRIGRC
TRIGOUT
MODE
OSCIN
OSCOUT
GND
TM
Type Pin No.
Description
I 1 Non-inverting Input of the gain adjustable op amp.
I 2 Inverting Input of the gain adjustable op amp.
O 3 Gain Select Output of the gain adjustable op amp.
Select the op amp gain by adjusting the resistor ratio in the feed-back resistor network.
O 4 Reference Voltage.
This output is used to bias the input op amp. It is typically VCC/2.
O 5 Capacitor Connector.
A 0.1µF decoupling capacitor should be connected between this pin and GND.
I 6 Trigger Input.
This is a Schmitt trigger input used for ring detection and line reversal detection.
I/O 7 Trigger Resistor and Capacitor Connector.
This pin is connected to VCC and GND through resistor and capacitor. The RC value
decides the time delay from TRIGIN going inactive (low) to TRIGOUT becoming inactive
(high). See Fig.6 for reference.
O 8 Trigger Output.
This is a Schmitt trigger buffer output indicating the detection of line reversal and/or ringing.
I 9 Serial FSK Interface MODE Select.
A low level on this pin sets the interface to mode '0', while a high level sets it to mode '1'.
I 10 Oscillator Input.
A 3.579545 MHz crystal or ceramic resonator should be connected between this pin and
the OSCOUT. It can also be driven by an external clock source.
O 11 Oscillator Output.
A 3.579545 MHz crystal or ceramic resonator should be connected between this pin and
and OSCIN. When OSCIN is driven by an external clock, this pin should be left floating.
-- 12 Ground.
I 13 Test Mode. Must be connected to GND for normal operation.
2


Part Number NW6003
Description TYPE II CALLER ID DECODER
Maker Integrated Device Technology
Total Page 21 Pages
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