TDA1581 Просмотр технического описания (PDF) - Philips Electronics

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TDA1581

Decoder for traffic warning (VWF) radio transmissions

Philips Electronics 

Philips Semiconductors

Decoder for traffic warning (VWF) radio

transmissions

PINNING

SYMBOL PIN

DESCRIPTION

n.c.

1 not connected

DKout

SKout

τBK

V5BK

V6BK

VP

VP / 2

V9SK

n.c.

2 DK output current

3 SK output current

4 time delay BK

5 filter output BK

6 filter input BK

7 supply voltage

8 half supply voltage

9 SK detector output

10 not connected

n.c.

11 not connected

V12SK

VAGC

I14

VMPX

V16DK

V17DK

τDK

I19

GND

12 57 kHz band pass filter

13 AGC

14 prestage biasing current

15 MPX input

16 filter input DK

17 filter output DK

18 time delay DK

19 reference current for BK, DK detector

20 ground

Preliminary specification

TDA1581T

Fig.2 Pin configuration.

March 1992

4

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