W91510 Просмотр технического описания (PDF) - Winbond

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Компоненты Описание

производитель

W91510

TONE/PULSE DIALER WITH HANDFREE AND SAVE FUNCTIONS

Winbond 

W91510N SERIES

Pin Description, continued

SYMBOL 18-PIN 20-PIN I/O

MODE

13

15

I

HKS

10

12

I

DP

11

13

O

VDD, VSS 14, 6 16, 6 I

KT

5

5

O

DTMF

12

14

O

FUNCTION

Pulling mode pin to VSS places the dialer in tone mode.

Pulling mode pin to VDD places the dialer in pulse mode

(10 ppS; 20 ppS for W91511N/511AN, M/B = 40:60).

Floating mode pin places the dialer in pulse mode

(10 ppS; 20 ppS for W91511N/511AN, M/B = 33.3:66.7).

Hook switch input.

HKS = VDD: On-hook state. Chip in sleeping mode, no

operation.

HKS = VSS: Off-hook state. Chip is enabled for normal

operation.

HKS pin is pulled to VDD by an internal resistor.

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).

Power input pins.

Key-tone signal output. The key tone is generated for all

valid keys. Frequency is 600 Hz and duration is 35 mS.

In pulse mode, this pin remains in low state at all times.

In tone mode, it will output a dual or single tone.

Detailed timing diagram for tone mode is shown in Figure

2(a, b, c).

Output Frequency

Specified

R1

697

Actual

699

Error %

+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

Publication Release Date: May 1997

-3-

Revision A2

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