nw6006 Integrated Device Technology, nw6006 Datasheet

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nw6006

Manufacturer Part Number
nw6006
Description
Enhanced Type Ii Caller Id Decoder With Stutter Dial Tone Detector
Manufacturer
Integrated Device Technology
Datasheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc
INDUSTRIAL TEMPERATURE RANGE
2002 Integrated Device Technology, Inc.
1200 baud Bell 202 and ITU-T V.23 Frequency Shift Keying
(FSK) Demodulation
Stutter dial tone detection
Compliant with following specifications:
Bellcore GR-30-CORE & SR-TSV-002476
TIA/EIA-716, TIA/EIA-777 Draft
TIA/EIA PN-4195 Draft
British Telecom (BT) SIN227 & SIN242
ETSI ETS 300 778-1 and -2
Bellcore “CPE Alerting Signal (CAS)”, British Telecom “Idle State
and Loop State Tone Alert Signal” and ETSI “Dual Tone Alerting
Signal (DT-AS)” detection
Two seperate OP amps with adjustable gain for Tip/Ring and
Telephone Hybrid connections
Monitoring of the stop bit for framing error check
Serial FSK data interface with selectable output of bit stream or 1
byte buffer
FSK carrier detection
3 V or 5 V operation
Low power CMOS with intelligent powerdown mode
Operating temperature range: -40 °C to +85 °C
Packages available:
NW6006-XS 20 pin SOIC
(where ‘X’ is the revision ID)
VREF
GS2
GS1
IN2-
IN1+
IN2+
IN1-
OSCOUT
+
+
-
-
Oscillator
Generator
PWDN
Bias
OSCIN
ENHANCED TYPE II CALLER ID DECODER
WITH STUTTER DIAL TONE DETECTOR
GS1EN
GS2EN
Figure 1. Block Diagram
SDTEN
CB0
Control Bit Decoder
PWDN
Demodulator
Tone Alert
Detector
CASEN
FSKEN
FSK
CB1 CB2
FSKEN
CASEN
DESCRIPTION
call waiting detection circuit. It can receive signals following Bellcore
GR-30-CORE & SR-TSV-002476, BT SIN227 & SIN242, and ETSI
ETS 300 788-1/-2 specifications.
demodulation, detection in stutter dial tone mode and CAS/DT-AS
detection. Two seperate differential input amplifiers allow the device to
be connected with both Tip/Ring and Telephone Hybrid receive pair.
FSK demodulation is implemented only on Tip/Ring, while DT-AS(or
CAS) detection can be on either Tip/Ring or Hybrid Receive. In
addition, NW6006 provides a serial FSK data interface via which the
data can be selected to be processed as a bit stream or extracted
from a 1 byte built-in buffer. An on-chip Stutter Dial Tone Detector is
provided to support the voice mail applications.
mail 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.
MODE
The NW6006 device is a single-chip, 3/5 Volt CMOS caller ID with
The NW6006 provides 1200 baud Bell 202 and ITU-T V.23 FSK
The device can be used in feature or cordless phones with voice
GS1EN
GS2EN
Guard Time
Stutter Dial Tone
Data/Timing Recovery
Detector
SDTEN
MODE
ST/GT
DR/STD
EST
CD/STRDT
DCLK
DATA
JULY 2002
NW6006
DSC-6049/3

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nw6006 Summary of contents

Page 1

... Integrated Device Technology, Inc. ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR DESCRIPTION The NW6006 device is a single-chip, 3/5 Volt CMOS caller ID with call waiting detection circuit. It can receive signals following Bellcore GR-30-CORE & SR-TSV-002476, BT SIN227 & SIN242, and ETSI ETS 300 788-1/-2 specifications. ...

Page 2

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR PIN INFORMATION Name Type Pin No. Reference Voltage. VREF O 1 This output is used to bias the input OP amp typically VCC/2. Non-inverting Input of the gain adjustable Tip/Ring OP amp. IN1 Inverting Input of the gain adjustable Tip/Ring OP amp. ...

Page 3

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR PIN INFORMATION (CONTINUED) Name Type Pin No. Data Ready or DT-AS Detection Delayed Steering Output. This pin is active low. When FSK demodulation is enabled, this pin is the Data Ready output. In FSK interface mode 0, this pin is unused and reads ‘1’. While in mode 1, this pin is normally high and goes low for half a bit time at the end of a word ...

Page 4

... When CB0 is low (‘0’): Stutter Dial Tone Detection is disabled STRDT Tip/Ring DT-AS detection is required for Bellcore MEI and BT on-hook CLIP When CB0 is high (‘1’): the NW6006 will be powered down. It draws minimal power supply current. When CB0 is low (‘0’): for factory testing only. also defines standards. TIA specification TIA/EIA-716 CPE requirements ...

Page 5

... CPE is on-hook, either the hybrid is non-functional or the signal level is severely attenuated. Thus, an on-hook CPE must be able to detect DT-AS from Tip/Ring. The NW6006 provides two input OP amps via which the device can be connected both to Tip/Ring and to the Hybrid Receive pairs. Both connection can be differential or single-ended. FSK demodulation is implemented only on Tip/Ring, while DT-AS detection can be on either Tip/Ring or Hybrid Receive ...

Page 6

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR DUAL TONE ALERT SIGNAL DETECTION The Dual Tone Alert Signal is used only in off-hook signalling in Bellcore system and ETSI system, but in BT system it is used in both on and off-hook signalling. The low and high tone frequencies of three ...

Page 7

... The DCLK pin is the data clock which is used in Mode ‘1’ and is generated by an external device. The DR pin is the data ready signal used in Mode ‘1’, also an output from the NW6006 to external devices. DR/STD pin is a dual purpose output pin, when FSK function is selected it is DR. Two modes are selectable via control of the device’ ...

Page 8

... If DCLK is clocked, DATA is undefined. Since signals such as DT-AS, DTMF tones and speech are within the FSK frequency band and thus may activate the carrier detector. The NW6006 should be put into DT-AS or power down mode when FSK is not expected to avoid false carrier detection and false demodulation. ...

Page 9

... In FSK mode 1, the received byte is stored in an on-chip register. The microcontroller supplies read pulses (DCLK) to shift the register contents serially out of the NW6006, onto the DATA pin. The DR pin is also used to indicate the word boundary. VALID DT-AS EVALUATION DT-AS output will generate false detection if being interfered by speech ...

Page 10

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR APPLICATION INFORMATION TIP RING FSK Interface Mode 1 is selected Note: 1. Resistors are 1%, 0.1Watt; Unless stated, capacitors are 5%, 6 All diodes in the circuit are 1N4148 or equivalent. 3. Xtal is 3.579545 MHz, 0.1% crystal or ceramic resonator. ...

Page 11

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR TIP RING C2 FSK Interface Mode 1 is selected Note: 1. Resistors are 1%, 0.1Watt; Unless stated, capacitors are 5%, 6 All diodes in the circuit are 1N4148 or equivalent. 3. Xtal is 3.579545 MHz, 0.1% crystal or ceramic resonator. 4. Tip/Ring op amp gain = 0 dB; Hybrid Receive op amp gain = -3 dB. ...

Page 12

... A= 2 sec typ., B= 250 - 500 ms, C= 250 ms, D= 150ms, E depends on data length, Max C+D+E = 2.9 - 3.7 sec, F 200 ms battery operated CPE, NW6006 may be enabled only after the end of ringing to conserve power. 3) The microcontroller in the CPE powers down the NW6006 after CD goes inactive. ...

Page 13

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR CPE off-hook Note 2 A/B wires PWDN Note7 FSKEN Note7 STD Hybrid DT-ASEN Note7 CD DR Note8 DCLK Note8 DATA Figure 12. Bellcore Off-hook Data Transmission Timing Diagram Notes ms -100 ms ms 500 ms 75ms, F depends on data length ms. ...

Page 14

... GA ABS 3) AC and DC loads should be removed between 50-150 ms after the end of the FSK signal. The NW6006 may go to power down mode to save power. 4) FSKEN should be set low to disable the FSK demodulator, when the FSK signal is not expected. 5) Tip/Ring DT-ASEN, PWDN and FSKEN are internal signals decoded from Control Bits CB2-0. ...

Page 15

... IL DCLK, DATA, EST STD , CD , ST/GT Test 1: All inputs are VCC/GND except for oscillator pins. No analog input. Output unloaded. NW6006 in power down mode. Test 2: All inputs are VCC/GND except for oscillator pins. No analog input. Ouput unloaded. FSK is enabled Description Min Power Supply Standby ...

Page 16

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR DC ELECTRICAL CHARACTERISTICS (CONTINUED) Parameter Pin DCLK, DATA DR / STD , EST, ST/GT IN1+, IN1- Iin1 IN2+, IN2- DCLK Iin2 CB0, CB1, CB2 I 1 ST/GT OZ VREF VREF RREF V ST/GT TGT AC ELECTRICAL CHARACTERISTICS DUAL TONE ALERT SIGNAL DETECTION ...

Page 17

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR AC ELECTRICAL CHARACTERISTICS (CONTINUED) GAIN ADJUSTABLE OP AMP Parameter Description I Input Leakage Current IN R Input Resistance IN V Input Offset Voltage OS PSRR Power Supply Rejection Ratio CMRR Common Mode Rejection A DC Open Loop Voltage Gain ...

Page 18

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR AC TIMING CHARACTERISTICS POWER UP/DOWN AND FSK DETECTION Parameter Description t1 Power Up Time t2 Power Down Time Input FSK to CD low delay t3 Input FSK to CD high delay t4 t5 Hysteresis DUAL TONE ALERT SIGNAL Parameter ...

Page 19

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR AC TIMING CHARACTERISTICS (CONTINUED) SERIAL INTERFACE (MODE ‘1’) Parameter Description t11 DCLK Cycle Time t12 DCLK High Time DCLK Low Time t13 t14 DCLK Rise Time t15 DCLK Fall Time DCLK Low Setup to DR ...

Page 20

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR AC TIMING CHARACTERISTICS (CONTINUED) SERIAL INTERFACE (MODE ‘0’) Parameter Description D Data Rate R t21 Input FSK to DATA Delay t22 DATA Rise Time t23 DATA Fall Time Test conditions: 1. FSK input data at 1200 ± 12 buad. ...

Page 21

... NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR STUTTER DIAL TONE SIGNAL Parameter Description Stutter Dial Tone Signal Present Detect t18 Time Stutter Dial Tone Signal Absent Detect t19 Time t20 Stutter Dial Tone Signal Duration Time Tip/Ring or Hybrid ...

Page 22

... PHYSICAL DIMENSIONS CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 in Millimeters Symbol A1 Figure 23. NW6006-XS 20 Pin SOIC Package Diagram for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 22 Dimension in MM Dimension in Inch Min Max Min A 2.35 2.65 0.093 0.10 0.30 0.004 B 0.33 0.51 0.013 C 0.23 0.32 0.009 E 7.40 7.60 0.291 e 1.27 BSC 0.050 BSC H 10.00 10.65 0.394 h 0 ...

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