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Details, datasheet, quote on part number:NW6006
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| Part: | NW6006 |
| Category: | Communication => Telephony => Caller ID |
| Description: | Enhanced Type ii Caller id Decoder With Stutter Tone Detection |
| Company: | Integrated Device Technology, Inc. |
| Datasheet: | Download NW6006 datasheet File size : 315 kB |
| Request For quote: | Find where to buy NW6006
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Datasheet text preview:
ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR
FEATURES
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NW6006
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. The NW6006 provides 1200 baud Bell 202 and ITU-T V.23 FSK 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 C A S ) 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. The device can be used in feature or cordless phones with voice mail for BT Calling Line Identity Presentation (CLIP), CCA CLIP and Bellcore Calling Identity Delivery (CID) systems. It can also be used in c a l l e r ID boxes, modem, fax machines, answering machines, database query systems and Computer Telephony Integration (CTI) systems.
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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)
FUNCTIONAL BLOCK DIAGRAM
OSCOUT OSCIN CB0 CB1 CB2
SDTEN
Oscillator Bias Generator
PWDN GS1EN SDTEN
Control Bit Decoder
FSKEN PWDN GS1EN CASEN GS2EN MODE
VREF
Stutter Dial Tone Detector
IN1+ IN1GS1 IN2+ IN2GS2
G u a r d Time Tone Alert Detector
CASEN
+ -
ST/GT DR/STD EST CD/STRDT DCLK DATA
Mux
Mux
+ GS2EN
FSK Demodulator
FSKEN
Data/Timing Recovery
MODE
Figure 1. Block Diagram
The IDT logo is a registered trademark of Integrated Device Technology, Inc
INDUSTRIAL TEMPERATURE RANGE
©2002 Integrated Device Technology, Inc.
JULY 2002
DSC-6049/3
NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR
INDUSTRIAL TEMPERATURE RANGE
PIN INFORMATION
VREF IN1+ IN1GS1 GND OSCIN OSCOUT CB0 DCLK DATA
1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11
IN2+ IN2GS2 CB2 CB1 VCC CD/STRDT ST/GT EST DR/STD
Figure 2. Pin Assignment
Name VREF IN1+ IN1GS1 GND OSCIN OSCOUT
Type O I I O I O
Pin No. 1 2 3 4 5 6 7
CB0
I
8
DCLK
I/NC
9
DATA
O
10
Description Reference Voltage. This output is used to bias the input OP amp. It is typically VCC/2. Non-inverting Input of the gain adjustable Tip/Ring OP amp. Inverting Input of the gain adjustable Tip/Ring OP amp. Gain Select Output of the gain adjustable Tip/Ring OP amp. The Tip/Ring signal can be attenuated or amplified at GS1 by adjusting the feedback resistor between GS1 and IN1-. The FSK signal is always detected by Tip/Ring OP amp while DT-AS(CAS) signal can be detected by either Tip/Ring or Hybrid OP amp. The OP amp selection is controlled by CB1 and CB2 bits. Ground. 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. Oscillator Output. A 3.579545 MHz crystal or ceramic resonator should be connected between this pin and the OSCIN. When an external clock drives OSCIN, this pin can be left floating. Control Bit 0 (FSK Data Interface Mode Select). This pin can select the 3-wire FSK data interface mode. A `0' on this pin indicates interface mode 0; while a `1' on this pin indicates interface mode 1. (The FSK data interface is consisted of DATA, DCLK and DR/STD pins.) When CB0 is high and CB1, CB2 are both low, the device is set into the power down state. Data Clock of the Serial FSK Interface. In mode 0 (CB0 is low), this pin is unused; In mode 1 (CB0 is high), this pin is an input which clock the FSK data byte out to the DATA pin. Data Output of the Serial FSK Interface. In mode 0 (CB0 is low), the FSK serial bit stream is output to the DATA pin directly. In mode 1 (CB0 is high), the start bit is stripped off, the data byte and the stop bit is stored in a 9-bit buffer. At the end of each word signaled by the DR/STD pin, the microcontroller should shift the byte out onto the DATA pin by applying 8 read pulses to the DCLK pin. A 9 th DCLK pulse will shift out the stop bit for framing error checking.
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NW6006 ENHANCED TYPE II CALLER ID DECODER WITH STUTTER DIAL TONE DETECTOR
INDUSTRIAL TEMPERATURE RANGE
PIN INFORMATION (CONTINUED)
Name Type Pin No. Description 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. If DCLK starts during DR low, the first rising edge of the DCLK input will return DR to high. In this way, reading of the first DATA bit can clear the interrupt requested by a low going DR. When DT-AS detection is enabled, this pin is the Delayed Steering Output. An active low signal on this output indicates the detection of a `guard time qualified' DT-AS. DT-AS Early Steering Output. This pin is an active high output to indicate the detection of a raw DT-AS signal. It is used with the ST/GT pin and external components to time qualify the detection. DT-AS Detection Steering Input/Guard Time Output. It's a CMOS output and an input of voltage comparator. It is used in conjunction with the EST pin and external components to time qualify a raw DT-AS signal detection. If the voltage at this pin is greater than the voltage threshold, DR/STD pin is asserted low to indicate that a DT-AS has been detected. A voltage less than the threshold enable the device to accept a new DT-AS and return the DR/ STD pin to high. FSK Carrier Detector or Stutter Dial Tone Detector Output. This is an active low CMOS output signal to indicate the presence of in-band FSK signal or valid Stutter Dial Tone signal. 3/5 V Power Supply. Control Bit 1 (Function Select 1). This pin is used with CB2 to select FSK demodulation, Tip/Ring DT-AS/Dial Tone detection, Hybrid DT-AS/Dial Tone detection with or without Stutter Dial Tone Detection. See Table 1. When CB0 is high, CB1 and CB2 pins are both low, the device is set into the power down state. Control Bit 2 (Function Select 0). This pin is used with CB2 to select FSK demodulation, Tip/Ring DT-AS/Dial Tone detection, Hybrid DT-AS/Dial Tone detection with or without Stutter Dial Tone Detection. See Table 1. When CB0 is high, CB1 and CB2 pins are both low, the device is set into the power down state. Gain Select Output of the gain adjustable Hybrid OP amp. The hybrid receive signal can be amplified or attenuated at GS2 by adjusting the feedback resistor between GS2 and IN2-. When the CPE is off-hook, DT-AS detection of the GS2 signal should be enabled via the CB1 and CB2 pins. Inverting Input of the gain adjustable Hybrid OP amp. Non-inverting Input of the gain adjustable Hybrid OP amp.
DR/ STD
O/NC
11
EST
O
12
ST/GT
I/O
13
CD/ STRDT VCC CB1
O I
14 15 16
CB2
I
17
GS2 IN2IN2+
O I I
18 19 20
Abbreviation Index
CAS CDS CID CIDCW CLIP CNAM CND CNIC CO DT-AS MEI SDT TE ----------------------------------------------------------- CPE Alerting Signal ---------------------------------------------------------- Caller Display Service ---------------------------------------------------------- Calling Identity Delivery ---------------------------------------------------------- Calling Identity Delivery on Call Waiting ---------------------------------------------------------- Calling Line Identity Presentation --------------------------------------------------------- Calling Name Delivery --------------------------------------------------------- Calling Number Delivery ---------------------------------------------------------- Calling Number Identification Circuit ---------------------------------------------------------- Central Office ---------------------------------------------------------- Dual Tone Alert Signal ---------------------------------------------------------- Multiple Extension Interworking ---------------------------------------------------------- Stutter Dial Tone ---------------------------------------------------------- Terminal Equipment
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