Overview
The SAA7706H/N210,557 is a car radio Digital Signal Processor (DSP) manufactured by NXP Semiconductors (formerly Philips Semiconductors). This integrated circuit is designed to perform a wide range of signal processing functions essential for high-end car radio systems. It integrates various functionalities such as analog-to-digital conversion, digital-to-analog conversion, FM and AM signal processing, and RDS demodulation, making it a comprehensive solution for automotive audio systems.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | NXP Semiconductors / Freescale |
| Description | IC CAR RADIO DSP 80-QFP |
| Voltage - I/O | 3.30V |
| Voltage - Core | 3.30V |
| Package / Case | 80-BQFP (14x20) |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Interface | I²C, I²S, LSB, SPDIF |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
Key Features
- 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
- Noise generator for frequency response measurements
- Boot-up ROM for fast start-up
- Signal level, noise, and multipath detection for AM or FM signal quality information
Applications
The SAA7706H/N210,557 is primarily used in high-end car radio systems. It performs all the signal functions in front of the power amplifiers and behind the car radio tuner, including AM and FM outputs, and CD, tape, and phone inputs. The chip handles interference absorption, stereo decoding for FM and AM, RDS demodulation, and weak signal processing.
Q & A
- What is the primary function of the SAA7706H/N210,557? The primary function is to perform signal processing for car radio systems, including AM and FM signal processing, RDS demodulation, and audio signal handling.
- Who is the manufacturer of the SAA7706H/N210,557? The manufacturer is NXP Semiconductors (formerly Philips Semiconductors).
- What is the package type of the SAA7706H/N210,557? The package type is 80-BQFP (14x20).
- What are the operating temperature ranges for the SAA7706H/N210,557? The operating temperature ranges are -40°C to 85°C.
- What interfaces does the SAA7706H/N210,557 support? The chip supports I²C, I²S, LSB, and SPDIF interfaces.
- Is the SAA7706H/N210,557 RoHS compliant? Yes, it is lead-free and RoHS compliant.
- What type of ADCs does the SAA7706H/N210,557 use? It uses 5-bitstream 3rd-order sigma-delta ADCs and 1-bitstream 1st-order sigma-delta ADCs.
- Does the SAA7706H/N210,557 require external post filters for DACs? No, it has an integrated semi-digital filter.
- What is the purpose of the noise generator in the SAA7706H/N210,557? The noise generator is used for frequency response measurements.
- Does the SAA7706H/N210,557 support dual media sources? Yes, it supports separate front-seat and rear-seat signal sources and separate control.
