TDA1579T datasheet(4/13 Pages) PHILIPS

부품명	TDA1579T

상세설명	Decoder for traffic warning VWF radio transmissions

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제조업체	PHILIPS [NXP Semiconductors]

홈페이지	http://www.nxp.com

Logo

4 / 13 page

May 1992

4

Philips Semiconductors

Product speciﬁcation

Decoder for trafﬁc warning (VWF) radio

transmissions

TDA1579

TDA1579T

BK circuit

Switch-on threshold level

pin 3 high-Z

Vo5BKon

600

670

750

mV

Switch hysteresis

3

3.5

4

dB

BK switch threshold level

for BK-off (SK-off)

pin 3

conducting

V4-18off

0.8

0.88

0.97

V

(typ. value = 0.21V8-18)

SK output (pin 3)

allowable load current

I3

−−

1.5

mA

saturation voltage

I3 = 1.5 mA

V3-18sat

−−

0.35

V

rejection voltage

I3 < 5 µAV3-18

18

−−

V

Indicator driver (pin 1)

allowable load current

I1

−−

40

mA

saturation voltage

I1 = 20 mA

V1-18sat

−−

0.8

V

rejection voltage

I1 < 10 µAV1-18

23

−−

V

DK circuit

Switch-on threshold level

pin 2 high-Z

V15DKon

600

670

750

mV

Switch hysteresis

3.1

3.6

4.1

dB

DK switch threshold level

for DK-off (Schmitt

pin 2

trigger output)

conducting

V16-18off

−

0.6

−

V

(typ. value 1

× VBE)

DK output (pin 2)

allowable load current

I2

−−

1.5

mA

saturation voltage

I2 = 1.5 mA

V2-18sat

−−

0.35

V

rejection voltage

I2 < 5 µAV2-18

18

−−

V

BK and DK ﬁlter ampliﬁers

Open loop gain

f = 100 Hz

Go

84

−−

dB

Current gain

Gi

120

−−

dB

Input bias current

± Ii

−−

50

nA

Output offset voltage

R5-6 = R14-15

= 680 k

Ω± Vo5-8

−−

50

mV

± V

15-8

Available output current

± Io

1

−−

mA

Output resistance

Ro

−

2

3.5

k

Ω

Allowable load

capacitance

CL

−−

50

pF

PARAMETER

CONDITIONS

SYMBOL

MIN.

TYP.

MAX.

UNIT

V

o5BKon

V

o5BKoff

----------------------

V

15DKon

V

15DKoff

----------------------

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