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INTEGRATED CIRCUITS
DATA SHEET
TEA6880H Up-level Car radio Analog Signal Processor (CASP)
Product specification File under Integrated Circuits, IC01 2000 May 08
Philips Semiconductors
Product specification
Up-level Car radio Analog Signal Processor (CASP)
CONTENTS 1 1.1 1.2 1.3 1.4 2 3 4 5 6 7 7.1 7.2 7.3 7.4 7.5 7.5.1 7.5.2 7.5.3 7.5.4 7.5.5 7.5.6 7.5.7 7.5.8 8 9 10 11 11.1 11.2 11.3 11.4 11.5 11.6 11.7 11.8 11.9 11.10 11.11 11.12 11.13 11.14 11.15 11.16 FEATURES General Stereo decoder and noise blanking Weak signal processing Audio pre-amplifier GENERAL DESCRIPTION ORDERING INFORMATION QUICK REFERENCE DATA BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Stereo decoder FM noise blanker AM noise blanker Multipath/fading detection and weak signal control Tone/volume control Source selector Loudness Volume 1 Treble Bass Volume 2 RSA selector Chime adder LIMITING VALUES THERMAL CHARACTERISTICS CHARACTERISTICS I2C-BUS PROTOCOL Read mode: 1st data byte Read mode: 2nd data byte Subaddress byte for write Write mode: subaddress 0H Write mode: subaddress 1H Write mode: subaddress 2H Write mode: subaddress 3H Write mode: subaddress 4H Write mode: subaddress 5H Write mode: subaddress 6H Write mode: subaddress 7H Write mode: subaddress 8H Write mode: subaddress 9H Write mode: subaddress AH Write mode: subaddress BH Write mode: subaddress CH 15 16 17 18 12 13 14 14.1 14.2 14.3 14.4 14.5 INTERNAL CIRCUITRY PACKAGE OUTLINE SOLDERING
TEA6880H
Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering Suitability of surface mount IC packages for wave and reflow soldering methods DATA SHEET STATUS DEFINITIONS DISCLAIMERS PURCHASE OF PHILIPS I2C COMPONENTS
2000 May 08
2
Philips Semiconductors
Product specification
Up-level Car radio Analog Signal Processor (CASP)
1 1.1 FEATURES General
TEA6880H
• I2C-bus compatible • Digital alignment/adjustment via I2C-bus: – FM noise blanker sensitivity – FM stereo noise canceller – FM High Cut Control (HCC) – FM stereo separation. • FM audio processing hold for RDS updating; holds the detectors for the FM weak signal processing in their present state • FM bandwidth limiting; limits the bandwidth of the FM audio signal with external capacitors • AM stereo input; AM stereo audio can be fed in at the pins for the de-emphasis capacitors; this will provide 8 dB of gain to the AM audio. 1.2 Stereo decoder and noise blanking • Volume 1 control from +20 to −56 dB in 1 dB steps; programmable 20 dB loudness control included • Volume 2 control from 0 to −56 dB in 1 dB steps, −56, −58.5, −62, −68 dB and mute • Programmable loudness control with bass boost as well as bass and treble boost • Treble control from −14 to +14 dB in 2 dB steps • Bass control from −18 to +18 dB in 2 dB steps with selectable characteristic • Analog Step Interpolation (ASI) minimizes pops by smoothing out the transitions in the audio signal when a switch is made • Audio Blend Control (ABC) minimizes pops by automatically incrementing the volume and loudness controls through each step between their present settings and the new settings • Rear Seat Audio (RSA) can select different sources for the front and rear speakers • Chime input: can be sent to any audio output, at any volume level • Chime adder circuit: chime input can also be summed with left front and/or right front audio, or be turned off. 2 GENERAL DESCRIPTION
• FM stereo decoder • Accepts FM multiplex signal and AM audio at input • Pilot detector and pilot canceller • De-emphasis selectable between 75 and 50 µs • AM noise blanker: impulse noise detector and an audio hold. 1.3 Weak signal processing
• FM weak signal processing: six signal condition detectors, soft mute, stereo noise canceller (blend), and High Cut Control (roll-off). 1.4 Audio pre-amplifier
• Source selector for 6 sources: 2 stereo inputs external (A and B), 1 symmetrical stereo input (C), 1 symmetrical mono input (D), 1 internal stereo input (AM or FM), and 1 chime/diagnostic mono input 3 ORDERING INFORMATION TYPE NUMBER TEA6880H
The TEA6880H is a monolithic bipolar integrated circuit providing the stereo decoder function and ignition noise blanking facility combined with source selector and tone/volume control for AM/FM car radio applications. The device operates with a power supply voltage range of 7.8 to 9.2 V and a typical current consumption of 40 mA.
PACKAGE NAME QFP64 DESCRIPTION plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 × 20 × 2.8 mm VERSION SOT319-2
2000 May 08
3
Philips Semiconductors
Product specification
Up-level Car radio Analog Signal Processor (CASP)
4 QUICK REFERENCE DATA SYMBOL VCC ICC S/N THD αcs Vo(rms) PARAMETER supply voltage supply current CONDITIONS MIN. 7.8 32 − − 40 840
TEA6880H
TYP. 8.5 40
MAX. 9.2 48 − − − 1060
UNIT V mA
Stereo decoder path signal-to-noise ratio total harmonic distortion channel separation output voltage level at pins ROPO and FM: 91% modulation; LOPO AM: 100% modulation; fmod.