TDA4570 データシートの表示（PDF） - Philips Electronics

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TDA4570

NTSC decoder

Philips Electronics 

Philips Semiconductors

NTSC decoder

Product specification

TDA4570

PARAMETER

Colour switching output

(open n-p-n emitter)

output current

colour-ON voltage

colour-OFF voltage

HUE control and service switches

Phase shift of reference carrier

relative to the input signal

V11−3 = 3 V

Phase shift of reference carrier

relative to phase at V11−3 = 3 V

V11−3 = 2 V

V11−3 = 4 V

Internal source (open pin)

First service position

(PLL is inactive for oscillator

adjustment, colour ON, HUE OFF)

Second service position

(colour ON, HUE OFF)

Demodulator part

Colour difference signals output

voltage (peak-to-peak value)

−(R-Y) signal

−(B-Y) signal

Ratio of colour difference

output signals (R-Y)/(B-Y)

D.C. voltage at colour

difference outputs

Residual carrier at colour difference

outputs (peak-to-peak value)

(1 x subcarrier frequency)

(2 x subcarrier frequency)

SYMBOL

−I16

V16-3

V16-3

φ

−φ

+φ

V11-3

V11-3

V1−3(p-p)

V2-3(p-p)

VV-----12---––----33-

V1,2-3

V1, 2-3(p-p)

V1, 2-3(p-p)

MIN.

−

−

−

−5

30

30

−

0

5

0,84

1,06

0,71

−

−

−

TYP.

MAX.

UNIT

−

5, 0

mA

6,0

−

V

0

−

V

0

+5

deg

−

−

deg

−

−

deg

3

−

V

−

1

V

−

VP

V

1,05

1,32

V

1,33

1,67

V

0,79

0,87

7,7

−

V

−

20

mV

−

30

mV

August 1986

5

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