nw6003 Integrated Device Technology, nw6003 Datasheet - Page 13

• Manufacturer Part Number: nw6003
• Description: Type Ii Caller Id Decoder
• Manufacturer: Integrated Device Technology

NW6003 TYPE II CALLER ID DECODER
Notes:
1) A= 40 - 50 ms, B= 80 - 85 ms, C 100 ms, D= 65 - 75 ms, E= 5- 100ms, F = 45 - 75 ms, G depends on data length, H 100 ms.
2) If AC power is not available, the designer may use the line power when the TE goes into loop state (off-hook) and use battery power while on-hook.
3) If the end office fails to send the FSK signal, the TE should disable FSKEN to unmute the handset and enable the keypad after this interval.
4) When FSK signal is not expected, the FSKEN pin should be set low to disable the FSK demodulator.
5) FSKEN should be high as soon as the TE has finished sending the acknowledgement signal ACK.
6) FSKEN should be low when CD become inactive.
A/B wires
FSKEN
PWDN
DCLK
DATA
STD
INT
CD
DR
TE in loop state (off-hook)
Note 2
Figure 16. BT Loop State (Off-hook) Data Transmission Timing Diagram
Start Point
A
Alert Signal
B
Note 4
C
Speech path disabled
ACK
D
13
Note 3
Note 5
E
Mark
F
Message
Data
G
...
...
INDUSTRIAL TEMPERATURE RANGE
Note 6
H
Speech path restored
Note 1