TEA6823 Просмотр технического описания (PDF) - Philips Electronics

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TEA6823

In Car Entertainment (ICE) car radio

Philips Electronics 

Philips Semiconductors

In Car Entertainment (ICE) car radio

Preliminary specification

TEA6823T; TEA6825T

FEATURES

General

• FM mixer for conversion from FM-IF1 = 72.2 MHz to

FM-IF2 = 10.7 MHz

• AM mixer for conversion from AM-IF1 = 10.7 MHz to

AM-IF2 = 450 kHz

• FM-IF gain stage

• Crystal oscillator providing mixer frequencies and

references for IF-count and stereo decoder

• FM quadrature demodulator with automatic centre

frequency adjustment and THD compensation

• Level, multi-path and noise detectors

• Soft mute

• Stereo noise cancelling and variable de-emphasis

• PLL stereo decoder

• Noise blanker

• AM IF-amplifier and demodulator

• I2C-bus transceiver with interface to enable direct data

transfer to radio front-end

• IF-count for AM and FM

• Reference frequency generation for PLL synthesizer.

Stereo decoder

• Adjustment-free PLL VCO

• Pilot depending mono/stereo switching

• Analog control of mono/stereo blend

• Adjacent channel noise suppression (114 kHz)

• Pilot cancelled

• Analog control of de-emphasis

• Integrated low-pass filters for 190 kHz adjacent channel

interferences and signal delay for interference

absorption circuit.

GENERAL DESCRIPTION

The TEA6823T together with the TEA6811T and the

TEA6825T together with the TEA6810T form an AM/FM

electronic tuned car radio in a double conversion receiver

concept.

ORDERING INFORMATION

TYPE NUMBER

TEA6823T

TEA6825T

NAME

VSO56

VSO56

PACKAGE

DESCRIPTION

plastic very small outline package; 56 leads

plastic very small outline package; 56 leads; face down

VERSION

SOT190-1

SOT190-2

1998 Mar 24

2

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