W91320 Ver la hoja de datos (PDF) - Winbond

Número de pieza

componentes Descripción

Fabricante

W91320

TONE/PULSE DIALER WITH REDIAL FUNCTION

Winbond 

W91320N SERIES

Pin Description, continued

SYMBOL 18-PIN

DP / C5

11

VDD, VSS

14, 6

H/P

5

MUTE

NC

-

DTMF

12

20-PIN

13

(12,

W91320LN

only)

16, 6

(16, 7

W91320LN

only)

5

(6,

W91320LN

only)

15

(W91320LN

only)

14

(13,

W91320LN

only)

22-PIN

14

18, 7

6

17

15

I/O

FUNCTION

O N-channel open drain dialing pulse

output.

Flash key will cause DP to be active in

either tone mode or pulse mode.

The timing diagram for pulse mode is

shown in Figure 1(a, b, c, d).

I Power input pins.

O The H/P MUTE is a conventional

inverter output. During pulse dialing,

flash break, one-key redial break, and

hold period, this output is active high;

otherwise, it remains in low state.

- No connection.

O In pulse mode, this pin remains in low

state at all time.

In the tone mode, it will output a dual or

single tone.

Detailed timing diagram for tone mode

is shown in Figure 2(a, b, c, d).

Output Frequency

Specified Actual Error %

R1

697

699

+0.28

R2

770

766

-0.52

R3

852

R4

941

C1

1209

848

948

1216

-0.47

+0.74

+0.57

C2

1336

C3

1477

1332

1472

-0.30

-0.34

-4-

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