SAF7741 데이터 시트보기 (PDF) - NXP Semiconductors.
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SAF7741 Datasheet PDF : 83 Pages
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NXP Semiconductors
SAF7741HV
Dual IF car radio and audio DSP (N1F)
2.2 Software Features
The following software features are available for the SAF7741HV:
Improved FM weak-signal processing
Integrated 19 kHz Multiplexed (MPX) filter and de-emphasis
Electronic adjustment of FM/AM level and FM channel separation
Variable IF bandwidth. This is controlled partly by the DSP software and depends on
the quality of the reception
Selective IF bandwidth for wideband FM, FM Weatherband and AM
Variable IF bandwidth on FM, dependent on the adjacent channel interference
Digital stereo decoder for FM and AM
Advanced digital Interference Absorption Circuit (IAC) for FM and AM
Digital Automatic Frequency Control (AFC)
RDS demodulation
Pause detection for RDS updates with audio mute during RDS updates
Baseband audio processing (treble, bass, balance, fader and volume)
Maximum of five audio SRCs
Dynamic loudness or bass boost
Audio level meter
Compact Disc (CD) dynamics compressor/expander
Improved AM processing with soft mute, high cut control, 6th order low-pass filtering
and AM audio IAC
Soft audio mute
Extended chime functions
Signal level, noise and multi-path detection for AM/FM signal quality information
AM audio AGC
AGC click suppression in AM mode
3. Applications
The SAF7741HV is designed for use in high-performance car radio systems.
4. Ordering information
Table 1. Ordering information
Type Number
Package
Name
Description
Version
SAF7741HV
HLQFP144 144 leads; plastic thermal enhanced low profile quad flat package; exposed N115F
die pad
SAF7741_5
Objective data sheet
Rev. 05 — 09 May 2008
© NXP B.V. 2008. All rights reserved.
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