TEF6623 데이터 시트보기 (PDF) - NXP Semiconductors.
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TEF6623 Datasheet PDF : 2 Pages
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NXP low-IF analog car radio
tuners TEF662x
Easy-to-use, cost-effective tuners
for analog car radios
Building on the success of NXP’s TEF660x and TEF661x families, the TEF662x uses a low-IF
architecture to ensure high integration with low complexity. The result is easy design-in and
best-in-class price/performance ratios.
Key features
`` Highly integrated tuners with low-IF conversion
`` PLL synthesizer with integrated VCO
`` Integrated AM LNA with AGC and RF selectivity`
(TEF6623 is FM-only)
`` Integrated FM LNA with AGC
`` Stereo decoder with output for interfacing with external
analog or digital audio processor
`` Advanced weak signal processing (soft mute, stereo blend,
high cut control)
`` PACS
`` FM noise blanker
`` Signal quality detection
`` I2C-bus control
`` RDS demodulator (TEF6623 & 24 only)
`` Single 8.5 V supply
`` SO32 package
`` Very low external component count
`` Allows for fast software development because of`
integrated radio knowledge and easy interface
`` Very good strong signal behavior`
Key applications
`` Aftermarket car radios
`` Consumer radio
These tuners integrate all the critical RF components, so
they’re easy to design onto the main radio board. There’s no
need for a tuner module, and no alignments are required.
The performance, feature set, and quality of the TEF662x
family are optimized to enable complementary pricing and
product positioning for the cost-sensitive aftermarket car
radio and consumer segments. All the devices in the family
are software- and hardware- (pin-to-pin and application)
compatible with each other as well with devices from the
TEF660x and TEF661x families. This allows a single reference
tuner design to address a range of requirements.
Low-IF architecture
Many existing solutions require double IF (intermediate
frequency) conversion. NXP’s low-IF architecture eliminates
the 10.7 MHz and 450 kHz IF transformer coils and ceramics,
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