Harman Kardon AVR240 Service Manual page 96

AVR240
Features
CS49300 Legacy Audio Decoder Support
Dolby Digital EX
TM
DTS-ES 96/24
TM
Discrete 6.1
Digital Surround
MPEG-2: AAC Multichannel 5.1
MPEG Multichannel and Musicam
MPEG-1/2, Layer III (MP3)
TM
DTS Neo:6 , LOGIC7
TM
Surround II
Cirrus Extra Surround
Surround 6.1 (C.O.S. 6.1)
THX Surround EX
12-Channel Serial Audio Inputs
Integrated 8K Byte Input Buffer
Powerful 32-bit Audio DSP
Customer Software Security Keys
Large On-chip X,Y, and Program RAM
Supports SDRAM, SRAM, FLASH
memories
16-channel PCM output
Dual S/PDIF Transmitters
SPI Serial, and Motorola
Host Control Interfaces
GPIO support for all common sub-circuits
Compressed
Digital
Interface
Digital
Audio
Input
DSP AB
PLL Clock
Manager
Multi-Standard Audio Decoder
TM
, Dolby Pro Logic II
TM
, DTS 96/24 , DTS-ES
TM
, DTS-ES Matrix 6.1
TM
and DTS Virtual 5.1
®
, SRS Circle
TM
, Cirrus Original
TM
TM
, THX Ultra2 Cinema
® ®
and Intel
Frame
Shifter Multi-Standard
Audio Decoder
Input
Parallel or Serial
Buffer
Host Interface
RAM
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
CS49400 Family DSP
Description
The CS49400 Audio Decoder DSP is targeted as a market-
TM
specific consumer entertainment processor for AV Receivers
and DVD Audio/Video Players. The device is constructed using
an enhanced version of the CS49300 Family DSP audio
, DTS
decoder followed by a 32-bit programmable post-processor
TM
DSP, which gives the designer the ability to add product
differentiation through the Cirrus Framework
structure and Framework module library. Dolby Digital Pro
Logic II, DTS Digital Surround, MPEG Multichannel, and Cirrus
Original Surround 6.1 PCM Effects Processor (capable of
generating such DSP audio modes as: Hall, Theater, Church)
are included in the cost of the CS49400 Family DSP. Additional
algorithms available through the Crystal Ware
Licensing Program, give the designer the ability to further
TM
deliver end-product differentiation.
The CS49400 contains sufficient on-chip SRAM to support
decoding all major audio decoding algorithms available today
including: AAC Multichannel, DTS 96/24, DTS-ES 96/24. The
CS49400 also supports a glueless SDRAM/SRAM for
increased all-channel delays. The SRAM interface also
supports connection to an external byte-wide EPROM for code
storage or Flash memory thus allowing products to be field-
upgradable as new audio algorithms are developed.
This chip, teamed with Crystal Ware
library, Cirrus digital interface products and mixed signal data
Parallel
converters, enables the conception and design of next
generation digital entertainment products.
SAI 0
SAI 1
SAI 2
SAI 3
DSP C
Programmable
32-Bit DSP
DSP
RAM
96
TM
External Memory
Interface
Serial
Audio
Interface
Digital
Audio
Output
GPIO and I/O
Controller
Parallel or Serial
DSP
Host Interface
ROM
harman/kardon
TM
programming
TM
Software
certified decoder
DAO 0
DAO 1