Philips TDA3843-V3 Datasheet

DATA SH EET

Product specification
File under Integrated Circuits, IC02

March 1991

INTEGRATED CIRCUITS

TDA3843

Sound-IF circuit for TV AM-sound
standard L and L’

March 1991 2

Philips Semiconductors Product specification

Sound-IF circuit for TV AM-sound
standard L and L’

TDA3843

GENERAL DESCRIPTION

The TDA3843 performs the AM-sound demodulation for the L- and L’-standard.

Features

• 5 to 8 V power supply and an alternative 12 V power supply

• Low power consumption (200 mW) at 5 V supply voltage

• New AC-coupled wideband IF-amplifier (high dynamic ranges, less intermodulation)

• In-phase wideband AM demodulator without external reference circuit

• Reduced THD figures even for low AF frequencies (typical 1%)

• Stabilizer circuit for ripple rejection and constant output signals

• All pins are ESD protected

QUICK REFERENCE DATA

PACKAGE OUTLINE

16-lead DIL; plastic (opposite bent leads) (SOT38WBE); SOT38-1; 1996 December 4.

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

Supply voltage (pin 14) V

P1

4.5 5 8.8 V

Supply voltage (pin 11) V

P2

10.8 12 13.2 V

Supply current I

11, 14-13

− 40 48 mA

Minimum IF input (RMS value) V

1-16

− 70 100 µV

IF control range ∆G

V

60 63 − dB

AF output signal (RMS value) V

6-13

− 550 − mV

Signal plus weighted-noise to

weighted-noise ratio
(CCIR 468-3) S + W/W 50 56 − dB

March 1991 3

Philips Semiconductors Product specification

Sound-IF circuit for TV AM-sound
standard L and L’

TDA3843

Fig.1 Block diagram.