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TEA6840 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - New In Car Entertainment NICE car radio - NXP

भाग संख्या TEA6840
समारोह New In Car Entertainment NICE car radio
मैन्युफैक्चरर्स NXP 
लोगो NXP लोगो 
पूर्व दर्शन
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<?=TEA6840?> डेटा पत्रक पीडीएफ

TEA6840 pdf
Philips Semiconductors
New In Car Entertainment (NICE) car radio
Preliminary specification
TEA6840H
FEATURES
FM mixer for conversion of FM RF from 65 to 108 MHz
to IF of 10.7 MHz; the mixer provides inherent image
rejection
FM RF mixer can be set to receive weather band radio
up to 162.55 MHz; weather band radio flag output
AM mixer 1 for conversion of AM RF to AM IF1
10.7 MHz
LC tuner oscillator providing mixer frequencies for FM
mixer and AM mixer 1
AM mixer 2 for conversion of AM IF1 to AM IF2 450 kHz
Crystal oscillator providing mixer frequencies for AM
mixer 2 and reference for synthesizer PLL, IF count,
timing for Radio Data System (RDS) update and
reference frequency for car audio signal processor IC
Fast synthesizer PLL tuning system with local control for
inaudible RDS updating
Timing function for RDS update algorithm and control
signal output for car audio signal processor ICs
(TEA688x, SAA77xx)
Digital alignment circuit for conversion of LC oscillator
tuning voltage to controlled alignment voltage of FM
antenna tank circuit
AGC pin diode drive circuit for FM RF AGC; AGC
detection at FM mixer input; the AGC pin diode drive can
be activated by the I2C-bus as a local/distance function;
AGC threshold is a programmable and keyed function
switchable via the I2C-bus
FM IF linear amplifiers with high dynamic input range
FM quadrature demodulator with automatic centre
frequency adjustment and Total Harmonic Distortion
(THD) compensation
Level detector for AM and FM with temperature
compensated output voltage; starting point and slope of
level output is programmable via the I2C-bus
AM RF pin diode drive circuit; AGC threshold detection
at AM mixer 1 and IF2 AGC input; threshold is
programmable via the I2C-bus; AM IF2 AGC and
demodulator
AM AF output switchable to provide AM IF2 for AM
stereo decoder
AM noise blanker with blanking at AM IF2
Several test modes available for fast IC and system
tests.
GENERAL DESCRIPTION
The TEA6840H is a single chip car radio tuner for AM and
FM intended for microcontroller tuning with the I2C-bus
providing the following functions:
AM double conversion receiver for LW/MW/SW (31 m,
41 m and 49 m bands) with IF1 = 10.7 MHz and
IF2 = 450 kHz
FM single conversion receiver with integrated image
rejection for IF = 10.7 MHz capable of selecting US FM,
US weather, Europe FM, East Europe FM and Japan
FM bands.
ORDERING INFORMATION
TYPE
NUMBER
TEA6840H
NAME
QFP64
PACKAGE
DESCRIPTION
plastic quad flat package; 64 leads (lead length 1.95 mm);
body 14 × 20 × 2.8 mm
VERSION
SOT319-2
1999 Jul 12
2

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