nw6006 Integrated Device Technology, nw6006 Datasheet - Page 11

• Manufacturer Part Number: nw6006
• Description: Enhanced Type Ii Caller Id Decoder With Stutter Dial Tone Detector
• Manufacturer: Integrated Device Technology

NW6006 ENHANCED TYPE II CALLER ID DECODER
WITH STUTTER DIAL TONE DETECTOR
Note:
1. Resistors are 1%, 0.1Watt; Unless stated, capacitors are 5%, 6.3 V.
2. 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.
5. For 1000 Vrms, 60 Hz isolation from Tip to Earth and Ring to Earth:
6. For BT application, R3=R4= 422k;
For Bellcore application, R3=825k, R4=226k.
R1, R2 = 430 k, 0.5 W, 5%, 500 V min.
RING
TIP
Figure 10. Typical Application Circuit For Bellcore MEI Compatible Type II Telephone
FSK Interface Mode 1 is selected
C1, C2 = 2n2, 250 V min.
C2
C1
R2
B
with Stutter Dial Tone Detection, 3 V Operation
R1
A
39k
GND
39k
Xtal
282k
TIP
RING
VREF
IN1+
IN1-
GS1
GND
OSCIN
OSCOUT
CB0
DCLK
DATA
11
Telephone
NW6006
Hybrid
CD/STRDT
ST/GT
DR/STD
IN2+
VCC
GS2
CB2
CB1
EST
Rx+
IN2-
Tx+
Rx-
Tx-
INDUSTRIAL TEMPERATURE RANGE
200k
R3
To Microcontroller
From Microcontroller
R4
470k
470k
VCC= 3V +/-10%
Microphone
2n2
2n2
Speaker