TDA4455 datasheet(4/12 Pages) TEMIC

Numer części	TDA4455

Szczegółowy opis	Multistandard VIF Amplifier and PLL Demodulator

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Producent	TEMIC [TEMIC Semiconductors]

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TELEFUNKEN Semiconductors

TDA4455

Preliminary Information

Rev. A1: 08.05.1995

4 (12)

Electrical Characteristics

Vs = 8 V, Tamb = 25°C, reference point Pin 5, unless otherwise specified

Parameters

Test Conditions / Pins

Symbol

Min.

Typ.

Max.

Unit

DC-supply

Pin 15

Supply voltage

Vs

6.8

8.0

13.0

V

Supply current

Is

50

60

mA

IF-amplifier

Pins 1–2 or Pins 17–18

Input sensitivity

sync peak value, B/G

Vin

80

120

µVeff

Input impedance

Rin

1.2

k

W

Input capacitance

Cin

2

pF

IF-AGC

Pins 6 and 8

IF gain control range

Gv

60

66

dB

Response time, standard L

Note 1

tAGC

10

µsec

AGC capacitor

C6

4,7

µF

Average capacitor

C8

68

nF

Tuner-AGC

Pins 3 and 4

Available tuner-AGC

current

I4

4

mA

Automatic turn over point

Gv,tun

65

dB

PLL

Pins 9–10, 12, 13

see note 2

PLL capture range

Dfcap

±1.5

MHz

VCO-tuning range

Dfvco

3.0

MHz

VCO-tuning sensitivity

Df / Du

3.0

4.5

kHz/mV

Video demodulator output

Pin 7

see note 3

Composite video output

signal standard B/G

Note 4

Vout

1.8

2.0

2.2

Vpp

Video output signal

standard L

Note 5

Vout

1.2

1.4

1.6

Vpp

Difference of the video

signals

Standard B/G and L

DVout

10

%

Ultra white level,

standard B/G

Zero carrier level

V7

4.2

V

Ultra black level, Stand. L

Zero carrier level

V7

1.9

V

Supply voltage influence

on the ultra black level

(B /G)

DV/V

0.5

%/V

Supply voltage influence

on the ultra black level (L)

DV/V

0.5

%/V

Video bandwidth (–3 dB)

B

12

MHz

Video frequency response

over the AGC range

DB

2.0

dB

Differential gain error

DG

3

%

Differential phase error

DF

3

deg

Video demodulator output

Pin 7

Sound chroma beat

(1.07 MHz intermodu-

lation) related to demodu-

lated auxiliary colour

carrier.

Picture carrier = 0 dB

Colour carrier = –6 dB

Sound carrier = –24 dB

aIM

52

dB

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