W91031 データシートの表示（PDF） - Winbond

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W91031

CALLING LINE IDENTIFIER

Winbond 

Preliminary W91031

Line Reversal

A/B Wires

Alert Signal

A

B

C

RNGON

Ch. Seizure Mark

Message

D

E

F

G

Ring

SLEEP

INTN

t

ALGO

REC

TE DC load

< 120 uA

TE AC load

...

...

t

ABS

15 1 mS

< 0.5 mA (optional)

Current wetting pulse (Refer to SIN227)

20 5 mS Note 1

Zss (Refer to SIN227)

Note 4

50 - 150 mS

Note 2

FSKE

Note 3

FCDN

FDRN

DCLK

DATA

...

...101010...

...

Data

A >= 100 mS

B = 88 - 110 mS

C >= 45 mS (up to 5 sec)

D = 80 - 262 mS

E = 45 - 75 mS

F <= 2.5 sec (500 mS typical)

G >= 200 mS

Figure 9-5. Input and Output Timing of BT Idle State (On-hook) Data Transmission

Notes:

1. SIN227 specifies that the AC and DC loads should be applied at 20 ±5 mS after the end of the dual tone alert signal.

2. SIN227 specifies that the AC and DC loads should be removed between 50−150 mS after the end of the FSK signal.

The W91031 may also be placed in a sleep condition.

3. The FSKE pin should be set low to disable the FSK demodulator when FSK is not expected. The tone alerting signal speech

and the DTMF tones are in the same frequency band as the FSK signal.

4. The W91031 may not be woken up at this ring signal after the FSK data has been processed.

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