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SAA7706H

Features: 1.1 Hardware· 5-bitstream 3rd-order sigma-delta Analog-to-Digital Converters (ADCs) with anti-aliasing broadband input filter· 1-bitstream 1st-order sigma-delta ADC with anti-aliasing broadband input filter· 4-bitstream Digital-to-Analog Converters (DACs) with 128-fold oversampling and n...

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SeekIC No. : 004484081 Detail

SAA7706H: Features: 1.1 Hardware· 5-bitstream 3rd-order sigma-delta Analog-to-Digital Converters (ADCs) with anti-aliasing broadband input filter· 1-bitstream 1st-order sigma-delta ADC with anti-aliasing broa...

SAA7706H Data Sheet

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Part Number:
SAA7706H
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

1.1 Hardware
· 5-bitstream 3rd-order sigma-delta Analog-to-Digital Converters (ADCs) with anti-aliasing broadband input filter
· 1-bitstream 1st-order sigma-delta ADC with anti-aliasing broadband input filter
· 4-bitstream Digital-to-Analog Converters (DACs) with 128-fold oversampling and noise shaping
· Integrated semi-digital filter; no external post filter required for DAC
· Dual media support: allowing separate front-seat and rear-seat signal sources and separate control
· Simultaneous radio and audio processing
· Digital FM stereo decoder
· Digital FM interference suppression
· RDS demodulation via separate ADC; with buffered output option
· Two mono Common-Mode Rejection Ratio (CMRR) input stages for voice signals from phone and navigation inputs
· Phone and navigation mixing at DAC front outputs
· Two stereo CMRR input stages (CD-walkman and CD-changer etc.)
· Analog single-ended TAPE and AUX input
· Separate AM-left and AM-right inputs in the event of use of external AM stereo decoder
· One digital input: I2S-bus or LSB-justified format
· Two digital inputs: SPDIF format
· Co-DSP support via I2S-bus or LSB-justified format
· Audio output short-circuit protected
· I2C-bus controlled (including fast mode)
· MOST bus interfacing (details in separate manual)
· Phase-locked loop derives the internal clocks from one common fundamental crystal oscillator
· Combined AM/FM level input
· Pin compatible with SAA7705 and SAA7708
· All digital inputs are tolerant of 5 V input levels
· All analog inputs have high GSM immunity
· Low number of external components required
· -40 to +85 °C operating temperature range
· Easy applicable.
1.2 Software
· Improved FM weak signal processing
· Integrated 19 kHz MPX filter; de-emphasis and stereo detection
· Electronic adjustments: FM or AM level, FM channel separation, Dolby®(1) level
· Baseband audio processing (treble, bass, balance, fader and volume)
· Four channel 5-band parametric equalizer
· 9-bands mono audio spectrum analyzer
· Extended beep functions with tone sequencer for phone rings
· Large volume jumps e-power interpolated to prevent  zipper noise
· Dual media support; allowing separate front-seat and rear-seat signal sources and separate control
· Dynamic loudness or bass boost
· Audio level monitor
· Tape equalization and Music Search System (MSS) detection for tape
· Dolby-B tape noise reduction (at 44.1 kHz only)
· Dynamics compression available in all modes
· CD de-emphasis processing
· Voice-over possibility for phone and navigation signals
· Improved AM signal processing
· Digital AM CQUAM stereo decoder (not in all rom_codes available)
· Digital AM interference suppression
· Soft audio mute
· RDS update processing: pause detection, mute and signal-quality sensor-freeze
· General purpose tone generator
· Noise generator allows for frequency response measurements
· Boot-up ROM for fast start-up
· Signal level, noise and multipath detection for AM or FM signal quality information
· AM co-channel and adjacent channel detection (not in all rom_codes available).


Application

· High-end car radio systems.


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
VDD

Vn

IIK

IOK

IO(sink/source)

IDD,ISS

Tamb

Tstg

VESD



Ilu(prot)

Ptot		 supply voltage

input voltage on any pin

DC input clamping diode current

DC output clamping diode
current

DC output source or sink current

supply current per supply pin

ambient operating temperature

storage temperature range

ESD voltage
human body model
machine model

latch-up protection current

total power dissipation





VI < -0.5 V or VI > VDD + 0.5 V

VO < -0.5 V or VO > VDD + 0.5 V

-0.5 V < VO < VDD + 0.5 V






100 pF; 1500

200 pF; 0.5 mH; 10

CIC spec/test method




 -0.5

-0.5

-

-

-

-

-40

-65

2000

200

100

-		 +3.6

+5.5

±10

±20

±20

±50

+85

+125

-

-

-

890		 V

V

mA

mA

mA

mA

°C

°C

V

V

mA

mW



Description

The SAA7706H performs all the signal functions in front of the power amplifiers and behind the car radio tuner AM and FM outputs and the CD, tape and phone inputs.

These functions of SAA7706H are:
` Interference absorption
` Stereo decoding for FM and AM (stereo)
` RDS-demodulation
` FM and AM weak signal processing (soft mute, sliding stereo and high cut)
` Dolby-B tape noise reduction
` CD de-emphasis function
` Audio controls for volume, balance, fader, tone and dynamics compression.

Some functions of SAA7706H have been implemented in hardware (FM stereo decoder, RDS-demodulator and FM Interference Absorption Circuit (IAC) and are not freely programmable.

Digital audio signals of SAA7706H from external sources with the Philips I2S-bus and the LSB-justified 16, 18, 20 and 24 bits format or SPDIF format are accepted.

The big advantage of this SAA7706H device is the 'dual media support'; this enables independent front seat and rear seat audio sources and control.




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