CS48DV2B-CQZR Cirrus Logic Inc, CS48DV2B-CQZR Datasheet - Page 7

• Manufacturer Part Number: CS48DV2B-CQZR
• Description: IC DSP AUDIO 32BIT 2CH 48-LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Fixed Pointr

Specifications of CS48DV2B-CQZR

• Interface: I²C, SPI
• Clock Rate: 150MHz
• Voltage - I/o: 3.30V
• Voltage - Core: 1.80V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Non-volatile Memory: -
• On-chip Ram: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

4. Hardware Functional Description
4.1 DSP Core
4.1.1 DSP Memory
4.1.2 DMA Controller
DS875F2
The DSP core is a high-performance, 32-bit, user-programmable, fixed-point DSP that is capable of
performing two multiply-and-accumulate (MAC) operations per clock cycle. The DSP core has eight
72-bit accumulators, four X- and four Y-data registers, and 12 index registers.
peripherals such as the serial control port (SCP), digital audio input (DAI) and digital audio output
(DAO), or any DSP core memory, all without the intervention of the DSP. The DMA engine off loads
data move instructions from the DSP core, leaving more MIPS available for signal processing
instructions.
downloaded to the CS48DV2B from a host controller or external serial FLASH/EEPROM.
compile the image into a series of commands that are sent to the CS48DV2B through the SCP. The
processing application can either load modules (matrix-processors, virtualizers, post-processors)
from the DSPs on-board ROM, or custom firmware can be downloaded through the SCP.
head-ends, automotive amplifiers, and boom boxes.
memory for post-processing applications.
equal in size, or more memory can be allocated for Y-RAM in 2kword blocks.
has its own arbiter: X, Y, and P RAMs/ROMs and the peripheral bus. Modulo and linear addressing
The CS48DV2B DSPs are single-core DSP with separate X and Y data and P code memory spaces.
The DSP core is coupled to a flexible DMA engine. The DMA engine can move data between
CS48DV2B functionality is controlled by application codes that are stored in on-board ROM or
Users can develop their applications using DSP Composer to create the processing chain and then
The CS48DV2B is suitable for a variety of audio post-processing applications such as automotive
The DSP core has its own on-chip data and program RAM and ROM and does not require external
The Y-RAM and P-RAM share a single block of memory that can be configured to make Y and P
The powerful 8-channel DMA controller can move data between 8 on-chip resources. Each resource
CS48DV2B-CQZ
CS48DV2B-DQZ
Devices
Table 2. Device and Firmware Selection Guide
In Production Now
Availability
Copyright 2009 Cirrus Logic
32-bit Audio DSP for Dedicated Dolby Volume and Audistry by Dolby
CONFIDENTIAL
Suggested Applications
• Digital TV
• Portable DVD
• Multimedia PC
• Soundbars
• Automotive
Portable Audio
Docking Station
Players
Speakers
Entertainment
Systems
• 2.1 channels of audio
• 512 FFT Window, 20-
• Dolby Volume Native
CS48DV2B Data Sheet
input and 2.1
channels of PCM
audio output.
Bands/Channel
Processing of the
following Fs:
Specific Features
— 32 kHz
— 44.1 kHz
— 48 kHz
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