IDTNW6005ASG【PDF 5/20 页】IC CALLER ID DECODER 20SOIC

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INDUSTRIAL TEMPERATURE RANGE

NW6005 ENHANCED TYPE II CALLER ID DECODER

Alerting

Signal

Ch. Seizure

Mark

Message

Ring

..101010..

Data

...

Line Reversal

A/B Wires

PWDN

STD

TE DC load

TE AC load

FSKEN

DCLK

DATA

15 ±1 ms

20 ±5 ms

<120

50 - 150 ms

< 0.5 mA (optional)

Current Wetting Pulse

Zss

Tip/Ring

DT-ASEN

Note 1

Note 2

Note 3

Note 4

Notes:

1) A

≥ 100ms, B=88 - 110 ms, C≥ 45 ms (up to 5 sec), D= 80 -262 ms, E= 45 - 75 ms, F≤ 2.5 sec (typ. 500 ms), G≥ 200 ms.

2) By choosing t

GA=15 ms, tABS will be 15-25 ms (refer to Fig. 8). Current wetting pulse and AC/DC load should be applied right after the

STD rising edge.

3) AC and DC loads should be removed between 50-150 ms after the end of the FSK signal. The NW6005 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.

6) When CB0 is low, both DR and DCLK pins are unused.

Figure 13. BT Idle State (on-hook) Data Transmission Timing Diagram

Note 5

Note 6

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