nw6006 Integrated Device Technology, nw6006 Datasheet - Page 13

• 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
Notes:
1) A= 75 - 85 ms, B= 0 -100 ms, C= 55 - 65 ms, D= 0 - 500 ms, E= 58 - 75ms, F depends on data length, G 50 ms.
2) If AC power is not available, the designer may use the line power when the CPE goes off-hook and use battery power while on-hook. The CPE should also be CID (on-hook) capable .
3) If the end office fails to send the FSK signal, the CPE should disable FSKEN and unmute the handset and enable the keypad after this interval.
4) When FSK signal is not expected, the FSKEN should be set low to disable the FSK demodulator.
5) FSKEN should be high as soon as the CPE has finished sending the acknowledgement signal ACK.
6) FSKEN should be low when CD become inactive.
7) PWDN, FSKEN and Hybrid DT-ASEN are internal signals decoded from Control Bits CB2-0.
8) When CB0 is low, both DR and DCLK pins are unused.
A/B wires
Note7
DT-ASEN
Note7
Note7
FSKEN
Hybrid
PWDN
DCLK
DATA
Note8
Note8
STD
CD
DR
Note 2
CPE off-hook
Figure 12. Bellcore Off-hook Data Transmission Timing Diagram
Note 4
CAS
A
B
CPE mutes handset and
disable keypad
CPE sends
ACK
C
13
Note 5
Note 3
D
Mark
E
Message
Data
F
...
INDUSTRIAL TEMPERATURE RANGE
Note 6
G
CPE unmutes handset and
enable keypad
Note 1