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TEA6880H Datasheet(PDF) 3 Page - NXP Semiconductors |
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TEA6880H Datasheet(HTML) 3 Page - NXP Semiconductors |
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3 / 88 page  2000 May 08 3 Philips Semiconductors Product specification Up-level Car radio Analog Signal Processor (CASP) TEA6880H 1 FEATURES 1.1 General • 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 • 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 • 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 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. 3 ORDERING INFORMATION TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TEA6880H QFP64 plastic quad flat package; 64 leads (lead length 1.95 mm); body 14 × 20 × 2.8 mm SOT319-2 |
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