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CS47048C-CQZ Datasheet(PDF) 1 Page - Cirrus Logic |
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CS47048C-CQZ Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 40 page Preliminary Product Information This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. Copyright 2009 Cirrus Logic AUG ’09 CONFIDENTIAL DS787PP1 CS470xx Data Sheet http://www.cirrus.com FEATURES Cost-effective, High-performance 32-bit DSP — 300,000,000 MAC/S (multiply accumulates per second) — Dual MAC cycles per clock — 72-bit accumulators are the highest precision in the industry — 32K x 32-bit SRAM with three 2K blocks assignable to either Y data or program memory Integrated DAC & ADC Functionality —8† Channels of DAC output: 108dB DR, -98dB THD+N —4† Channels of ADC input: 105dB DR, -98dB THD+N — Integrated 5:1 analog mux feeds one stereo ADC Configurable Serial Audio Inputs/Outputs — Integrated 192 kHz S/PDIF Rx† — Integrated 192 kHz S/PDIF Tx — Supports 32-bit Serial Data @ 192 kHz — Supports 32-bit audio sample I/O between DSP chips —TDM I/O† modes (Up to 10/8 channels per line) Supports Different Fs Sample Rates —Three† integrated hardware SRC blocks — Output can be master or slave — Supports dual-domain Fs on S/PDIF vs. I2S inputs DSP Tool Set w/ Private Keys Protect Customer IP Integrated Clock Manager/PLL — Flexibility to operate from internal PLL, external crystal, external oscillator Input Fs Auto Detection w/ µC Acknowledgement Host Control & Boot via I2C™ or SPI™ Serial Interface Configurable GPIOs and External Interrupt Input 1.8V Core and a 3.3V I/O that is tolerant to 5V input Low-power Mode The CS470xx family is a new generation of audio system-on- a-chip (ASOC) processors targeted at high fidelity, cost sensitive designs. Derived from the highly successful CS48500 32-bit fixed point audio enhancement processor family, the CS470xx further simplifies system design and reduces total system cost by integrating the S/PDIF Rx, S/PDIF Tx, analog inputs, analog outputs, and SRCs. For example, a hardware SRC can down-sample a 192 kHz S/PDIF stream to a lower Fs to reduce memory and MIPS requirements for processing. This integration effectively reduces the chip count from 3 to 1 which allows smaller, less expensive board designs. Target applications are: — Automotive Head Units & Outboard Amplifiers — Automotive Processors & Automotive Integration Hubs — Digital TV — MP3 Docking Stations — AVR and DVD RX — DSP Controlled Speakers (e.g. Subwoofers, Sound Bars) The CS470xx is programmed using the simple yet powerful Cirrus proprietary DSP Composer™ GUI development and pre-production tuning tool. Processing chains may be designed using a drag-and-drop interface to place/utilize functional macro audio DSP primitives and custom audio filtering blocks. The end result is a software image that is downloaded to the DSP via serial control port. The Cirrus Framework™ programming environment offers Assembly and C language compilers and other software development tools for porting existing code to the CS470xx family platform. The CS470xx is available in a 100-pin LQFP package with exposed pad for better thermal characteristics. Both Commercial (0 °C to +70°C) and Automotive (-40°C to +85 °C) temperature grades. Ordering Information: See p. 33 for ordering information. x8 x4 x2 x2 DAC0 text Crystal ® 32-bit Core in the CS47048 DSP DMA SPI / I 2C Control I 2S / TDM ADC0/1 I 2S / TDM I 2S / TDM / SPDIF PLL ROM S R C 2 Clock Manager Timers RAM GPIO DAC1 DAC2 DAC3 DAC4 DAC5 DAC6 DAC7 S R C 1 ROM RAM ROM RAM P Y 32K x 32-bit SRAM with three 2K blocks Assignable to Program or Y Data memory I 2S / TDM / SPDIF Stereo Inputs On Analog in ADC2/3 DBC (I 2C Slave) PIC ADC’s & DAC’s operate in Single ended or Differential mode S R C 3 8ch 8ch SRC3 has 8 independent Channels for In or Out 4ch “†” Feature may differ on CS47024 or CS47028, see p. 8. |
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