TDA4481中文资料

Rev. A1: 23.02.1995

1 (10)

Multistandard quasi parallel-sound processor for Mono-TV-Sets

Technology: Bipolar Features

D High signal sensitivity D High signal to noise ratio

D Easy alignment of the multistandard filters D Converter for different intercarrier frequencies D AF output level matched to SIMA VELEC condition D Few external components

D Alignment free AM demodulator for standard L D Standardized SCART interface

D Standard-, SCART- and Mute-switch TTL compatible D AF attenuator D ESD protected

Case: 20-pin dual inline plastic

Figure 1 Block diagram

Function

FM demod. circuit 5.5 MHz

FM deemphasis capacitor

Intercarrier output 5.5 MHz

Intercarrier input 5.5 MHz

Sound-IF-carrier input

amplifier with increased level and the AF standard switch

Absolute Maximum Ratings Reference point Pin 11, unless otherwise specified

Supply voltage

Supply current

External voltages

Power dissipation

(in soldered position)

Junction temperature

Ambient temperature range

Storage temperature range

Thermal Resistance

Max.Unit

m V 30mV

mV

%

dB 1)

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Figure 2 Test circuit

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Rev. A1: 23.02.1995

10 (10)Dimensions in mm

Package: DIP 20