TDA4443 데이터 시트보기 (PDF) - STMicroelectronics

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TDA4443

MULTISTANDARD VIDEO IF AMPLIFIER

STMicroelectronics 

TDA4443

ELECTRICAL OPERATING CHARACTERISTICS (continued)

TAMB = 25oC, VCC = 12V, unless otherwise spacified. Test Circuit Page 5.

Symbol

I

∆GIF

IAGC

∆AGC

VIF

V2IF

d

aM

∆Sync

Sync

RI

CI

V

I

Parameter

Control Current Status C (see status of mode switching) - V2 = 6.3V

IF AGC Range

Available Tuner AGC Current (10dB above the AGC starting point)

Delay Between Tuner AGC and IF AGC (pin 6 not connected)

IF residual carrier at the video o/p withing the

AGC range 38.9MHz

77.8MHz

Differential Distortion on Composite VIdeo Signal Amplitude

SIGNAL 3

Attenuation of sound to color carrier intermodulation signal (1.07MHz)

referred to the demodulated color carrier : PIcture Carrier = 0dB,

Color Carrier = -6dB, Sound Carrier = -24dB

Sync. Pulse Compression within the IF AGC Range

Input Impedance : Resistance

Capacitance

Switch off Control Voltage for VTR Mode

Switch off Current for VTR Mode

Pin Min. Typ. Max.

2

60 400

60

5 8 12

5

50

Unit

µA

dB

mA

dB

11

20

mVRMS

11

50

mVRMS

11

5

%

11

50

dB

3

%

1-16

2.5

kΩ

1-16

2

pF

49

10

V

4

150 µA

SIGNAL 1 (standard B/G)

Demodulated Signal

1000mV

IF Signal

300mV

0mV

100%

100%

10%

4/7

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