TEA6880H

Features:

1.1 General

` I<sup>2</sup>C-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

` FM stereo decoder
` Accepts FM multiplex signal and AM audio at input
` Pilot detector and pilot canceller
` De-emphasis selectable between 75 and 50 ms
` 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
` 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.



Pinout




Specifications

SYMBOL	PARAMETER	CONDITIONS	MIN.	MAX.	UNIT
VCC	supply voltage		-0.3	+10	V
Vi	voltage at pins (except pins 4 and 5)	VCC 10 V	VSS - 0.3	VCC	V
	voltage at pins 4 and 5		VSS - 0.3	9.7	V
Ptot	total power dissipation		-	480	mW
Tstg	storage temperature		-65	+150
Tamb	storage temperature		-40	+85
Ves	electrostatic handling for all pins	note 1	-200	+200	V
		note 2	-2000	+2000	V

Description

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.