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CONFIDENTIAL DS875F2

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CS48DV2B Data Sheet

CONFIDENTI

DRA

DELPHI

FEATURES

 World’s most cost-effective 32-bit DSP featuring Dolby

Volume and Audistry

by Dolby

— Supports native processing at input Fs up to 48kHz

— Single download image enables support for 32 KHz,

44.1 kHz, and 48 kHz audio input

 CS48DV2B supports up to 2.0 channels of audio input

and up to 2.1 channels of output

 Enables concurrent processing features beyond Dolby

Volume including Tone Control, Multiband Parametric EQ,

Bass Management, Delays.

 Configurable Serial Audio Inputs/Outputs

— Configurable for all input/output digital audio types

S/LJ/RJ)

— 32-bit data path delivers uncompromised dynamic

range

— 192 kHz capable integrated S/PDIF transmitter

— DAO can operate in master or slave mode (SCLK &

LRCLK)

 Integrated Clock Manager/PLL

— Capable of operating from a wide variety of external

crystals or external oscillators

 Slave Host Boot Capability via Serial Interface

— SPI

™

interface capable of running up to 25 MHz

during run time

 1.8V Core and 3.3V I/O that is tolerant to 5V input

 Low-power Mode enabled

—Energy Star

Design Compliance Capability via low-

power mode, 268 µW in Standby mode

32-bit

DSP

P X Y

Serial

Control 1

Up to 2.1 Ch

Audio Out

GPIO Debug

Watchdog

TMR1

TMR2

PLL

S/PDIF

2.0 Ch.

Audio In

The new CS48DV2B supports a host of signal processing

applications concurrently, including the mass production-ready

Dolby Volume solution. See Section 3. for details about

firmware concurrency on the CS48DV2B. The target

applications for the CS48DV2B DSP are:

— Digital Televisions

— Soundbars / DTVs with Integrated Soundbars

—PMD/iPod

Docking Stations

— Automotive Head Units

— Automotive Outboard Amplifiers

— Blu-ray Disc

& DVD Receivers / HTiBs

— PC Speakers

All of these applications and many more that use volume

control and are subject to playback from sources that do not

have consistent volume levels will benefit from the CS48DV2B

Dolby Volume solution.

Ordering Information:

See page 21 for ordering information.

Summary of content (26 pages)

PAGE 1
CS48DV2B Data Sheet FEATURES World’s most cost-effective 32-bit DSP featuring Dolby® Volume and Audistry® by Dolby — — Supports native processing at input Fs up to 48kHz Single download image enables support for 32 KHz, 44.1 kHz, and 48 kHz audio input The new CS48DV2B supports a host of signal processing applications concurrently, including the mass production-ready Dolby Volume solution. See Section 3. for details about firmware concurrency on the CS48DV2B.
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EN D TI EL A L PH D I RA FT CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby Contacting Cirrus Logic Support For all product questions and inquiries contact a Cirrus Logic Sales Representative. To find the one nearest to you go to www.cirrus.com. IMPORTANT NOTICE D Cirrus Logic, Inc. and its subsidiaries (“Cirrus”) believe that the information contained in this document is accurate and reliable.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby Table of Contents 1. Documentation Strategy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby List of Figures List of Tables EN D TI EL A L PH D I RA FT Figure 1. RESET Timing ......................................................................................................................................... 12 Figure 2. XTI Timing ............................................................................................................................................... 12 Figure 3.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 1. Documentation Strategy The CS48DV2B Data Sheet describes CS48DV2B multichannel audio processors. This document should be used in conjunction with the following documents when evaluating or designing a system around the CS48DV2B processors. Table 1.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 3. Code Overlays The suite of software available for the CS48DV2B DSP consists of an operating system (OS) and a library of overlays. The overlays have been divided into three main groups called Matrix-processors, Virtualizer-processors, and Post-processors. All software components are defined below: 1.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby Table 2. Device and Firmware Selection Guide Devices Availability CS48DV2B-CQZ In Production Now • Digital TV Portable Audio Docking Station • Portable DVD Players • Multimedia PC Speakers • Soundbars • Automotive Entertainment Systems Specific Features • 2.1 channels of audio input and 2.1 channels of PCM audio output.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby modes are supported, with flexible start address and increment controls. The service intervals for each DMA channel, as well as up to 6 interrupt events, are programmable. 4.2 On-chip DSP Peripherals 4.2.1 Digital Audio Input Port (DAI) EN D TI EL A L PH D I RA FT The DAI port supports a wide variety of data input formats at sample rates (Fs) as high as 192 kHz. The port is capable of accepting PCM or DSD formats.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 4.2.6 Hardware Watchdog Timer The CS48DV2B has an integrated watchdog timer that acts as a “health” monitor for the DSP. The watchdog timer must be reset by the DSP before the counter expires, or the entire chip is reset. This peripheral ensures that the CS48DV2B will reset itself in the event of a temporary system failure. In stand-alone mode (that is, no host MCU), the DSP will reboot from external FLASH.
PAGE 10
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5. Characteristics and Specifications Note: All data sheet minimum and maximum timing parameters are guaranteed over the rated voltage and temperature. All data sheet typical parameters are measured under the following conditions: T = 25 °C, CL = 20 pF, VDD = VDDA = 1.8 V, VDDIO = 3.3 V, GNDD = GNDIO = GNDA = 0 V. 5.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.
PAGE 12
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.6 Switching Characteristics— RESET Parameter Symbol Min Max Unit Trstl 1 - ms All bidirectional pins high-Z after RESET low Trst2z - 100 ns Configuration pins setup before RESET high Trstsu 50 - ns Configuration pins hold after RESET high Trsthld 20 - ns EN D TI EL A L PH D I RA FT RESET minimum pulse width low RESET HS[3:0] All Bidirectional Pins Trstsu Trsthld Trst2z Trstl Figure 1.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.8 Switching Characteristics — Internal Clock Parameter Internal DCLK frequency1 Symbol Min Max Fdclk Fxtal Fxtal 150 150 6.7 6.7 1/Fxtal 1/Fxtal CS48DV2B-CQZ CS48DV2B-DQZ Internal DCLK period1 DCLKP CS48DV2B-CQZ CS48DV2B-DQZ Unit MHz ns C O N FI D EN D TI EL A L PH D I RA FT 1. After initial power-on reset, Fdclk = Fxtal.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.9 Switching Characteristics — Serial Control Port - SPI Slave Mode.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.
PAGE 16
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.11 Switching Characteristics — Serial Control Port - I2C Slave Mode Parameter Symbol Min Max Units SCP_CLK frequency fiicck - 400 kHz SCP_CLK low time tiicckl 1.25 - µs SCP_CLK high time tiicckh 1.25 - µs tiicckcmd 1.25 START condition to SCP_CLK falling tiicstscl 1.25 - µs SCP_CLK falling to STOP condition tiicstp 2.
PAGE 17
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.12 Switching Characteristics — Serial Control Port - I2C Master Mode Parameter Symbol Min Max Units fiicck - 400 kHz SCP_CLK low time tiicckl 1.25 - µs SCP_CLK high time tiicckh 1.25 - µs tiicckcmd 1.25 START condition to SCP_CLK falling tiicstscl 1.25 - µs SCP_CLK falling to STOP condition SCP_CLK frequency1 SCP_SCK rising to SCP_SDA rising or falling for START or STOP condition µs 2.
PAGE 18
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.13 Switching Characteristics — Digital Audio Slave Input Port Parameter Symbol Min Max Unit Tdaiclkp 40 - ns - 45 55 % Setup time DAI_DATAn tdaidsu 10 - ns Hold time DAI_DATAn tdaidh 5 - ns DAI_SCLK period DAI_SCLK duty cycle EN D TI EL A L PH D I RA FT DAI_SCLK tdaidsu tdaidh DAI_DATAn Figure 7. Digital Audio Input (DAI) Port Timing Diagram 5.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 5.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby Figure 9. Digital Audio Output Port Timing, Master Mode tdaosstlr tdaosclk DAO_LRCLK DAO_LRCLK DAO_SCLK tdaosclk tdaoslrts EN D TI EL A L PH D I RA FT DAOn_DATAn DAO_SCLK tdaosdv Note: In these diagrams, Falling edge is the inactive edge of DAO_SCLK C O N FI D Figure 10.
PAGE 21
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 6. Ordering Information The CS48DV2B part number is described as follows: CS48DVNI-XYZR where N - Product Number Variant I - ROM ID Number X - Product Grade Z - Lead (Pb) Free EN D TI EL A L PH D I RA FT Y - Package Type R - Tape and Reel Packaging Table 3. Ordering Information Part No. CS48DV2B-CQZ CS48DV2B-DQZ Grade Temp.
PAGE 22
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 7. Environmental, Manufacturing, & Handling Information Table 4. Environmental, Manufacturing, & Handling Information Model Number Peak Reflow Temp MSL Rating* Max Floor Life 260 °C 3 7 Days CS48DV2B-CQZ CS48DV2B-CQZR CS48DV2B-DQZ CS48DV2B-DQZR C O N FI D EN D TI EL A L PH D I RA FT * MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020.
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CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 8.
PAGE 24
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 8.2 48-pin LQFP Package Drawing D Number of Leads 48 MIN NOM MAX 1.60 0.05 0.15 1.35 1.40 1.45 0.17 0.22 0.27 9.00 BSC 7.00 BSC 0.50 BSC 9.00 BSC 7.00 BSC 0 7 0.45 0.60 0.75 1.00 REF C O N FI A A1 A2 b D D1 e E E1 theta L L1 EN D TI EL A L PH D I RA FT 48 LD LQFP (7 x 7 x 1.4 mm body) NOTES: 1) Reference document: JEDEC MS-026 2) All dimensions are in millimeters and controlling dimension is in millimeters.
PAGE 25
CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 9. Revision History Date Changes F1 December 3, 2008 Initial Release of CS48DV2B Data Sheet F2 February 16, 2009 Updated Section 5.5, adding Junction Temperature specification.
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C O N FI D EN D TI EL A L PH D I RA FT CS48DV2B Data Sheet 32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby 26 Copyright 2009 Cirrus Logic CONFIDENTIAL DS875F2