TEA0677T Datasheet | NXP Semiconductors

FEATURES - Head pre-amplifiers - Reverse head switching - Equalization with electronically switched time constants - 0 d B = 387.5 m V - Pin patible to TEA0675 Dolby B, music search IC. GENERAL DESCRIPTION The TEA0677T is a monolithic bipolar integrated circuit intended for applications in car radios. It includes head and equalization amplifiers with electronically switchable time constants. Furthermore it includes electronically switchable inputs for tape drives with reverse heads. The device is intended to replace the regular TEA0675T in low-cost car radios using the same PCB. External ponents that are necessary for Dolby B and music search features can be omitted. The device will operate with power supplies in the range of 7.6 V to 12.0 V, output overload level increasing with increase in supply voltage. Current drain varies with supply voltage, so it is advisable to use a regulated power supply or a supply with a long time constant. QUICK REFERENCE DATA SYMBOL VCC ICC (S + N)/N supply voltage supply current signal-plus-noise to noise ratio PARAMETER 7.6 - 68 MIN. 10 23 74 TYP. 12 26 - MAX. V m A d B UNIT ORDERING INFORMATION EXTENDED TYPE NUMBER TEA0677T Note 1. SOT137-1; 1996 August 27. PACKAGE PINS 24 PIN POSITION SO MATERIAL plastic CODE SOT137A(1) August 1993 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... August 1993 3 Product specification Instead of potentiometers at EQ AMP fixed resistors may be used. The value depends on applied heads. Philips Semiconductors Dual pre-amplifier and equalizer for reverse tape decks TEA0677T Fig.1 Block and...