ZR38601 Datasheet PDF - Zoran
| Part Number | ZR38601 | |
| Description | PROGRAMMABLE DIGITAL AUDIO PROCESSOR | |
| Manufacturers | Zoran | |
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DATA SHEET
ZR38601
PROGRAMMABLE DIGITAL AUDIO PROCESSOR
FEATURES
s Standard High Performance Functions in ROM
- Dolby Digital AC-3, 5.1 channel and 2 channel decoding
up to 640 Kbits per second
- Dolby Pro Logic encoding and decoding
- MPEG1 and MPEG2 two channel decoding with MPEG2
PES stream parsing, PTS decoding and SCR handling
s Downloadable SiliconSoftware™ Functions
- Aureal A3D, Dolby Virtual Surround, Harman VMAx
- QSound QSurround™, Spatializer N-2-2™, Home THX
- SRS TruSurround, Music Modes
- Bass Management and multi-channel downmix
s Flexible Input/Output
- Serial and/or parallel data stream I/O
- Serial SPI, serial Z2C or 8-bit parallel host interface
- 3 serial input data ports and 4 serial data output ports
- Formatted S/PDIF receiver with up to 96 kHz sample rate
- Sample rates: 32 kHz, 44.1 kHz, 48 kHz or 96 kHz
- Formatted S/PDIF AC-3 and MPEG transmitter output
s Low System Cost
- Host-less operation with no glue chips
- Separate internal PLLs for DSP core and audio I/O
- No external RAM required for 5.1 Dolby AC-3/MPEG2
- Wait-state generation for low-cost external memory
- 100-pin Plastic Quad Flat Pack (PQFP) packaging
- 3.3 V supply with 5 V compatible I/O for low power
s Software and Hardware PC Development Environment
- Assembler/Linker/Simulator
- On-chip ICE support with direct PC connection
- ZR38600DB Demonstration Board with 6 analog outputs,
microphone and line inputs, and optional PC connection
DESCRIPTION
The Zoran ZR38601 is a high performance programmable digital
audio signal processor capable of real-time single-chip decoding
of Dolby Digital AC-3 5.1-channel and MPEG2 digital surround
algorithms. It is the fourth generation decoder made by Zoran,
being based on the proven ZR38000, ZR38500 and ZR38600
architectures. Hardware block floating-point makes it optimum
for Dolby AC-3 and complex digital audio signal processing
applications.
Because of its programmable high performance and high level of
integration, the ZR38601 is unusually flexible in meeting a wide
range of system requirements at the lowest possible system
cost. At the low end it can provide standard fixed decoding func-
tions with only a DAC and an optical interface for the S/PDIF
input in addition to the oscillator crystal. At the high end it can
provide eight channels of output, analog input, long-delay mem-
ories, custom operating features and the ability to be upgraded
with downloaded SiliconSoftware™ product enhancements. Yet
all of this flexibility comes without design complexity. Highly con-
figurable standard functions with a simple command structure
minimize software development, while a full set of development
tools are available for the highly-custom product developer.
The ZR38601 is suitable for primarily audio applications such as
Audio/Visual home theater receivers, Digital Audio Broadcast
(DAB), 3-D audio, six-channel speaker systems and Karaoke
processors; primarily video applications like SDTV and HDTV
stereo television receivers, digital cable and satellite TV set-top
boxes; and multimedia applications with both audio and video
like Multimedia PCs and the Digital Video Disk (DVD) players.
Encoded Data
Input
S/PDIF Input
S/PDIF
Optical
Interface
XTAL
Host
Processor
(Optional)
SPI or Z2C Serial Interface
ZR38601
Decoded Audio
Outputs
DAC
DAC
DAC
DAC
(Optional)
Left
Right
Left Surround
Right Surround
Center
Subwoofer
Left Center
Right Center
General Purpose Control I/O
Figure 1. A Typical Low-Parts-Count ZR38601 System
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ZR38601
Table 1: Standard Function Command and Response Summary
Class
Name
Write Command
Primary Decoding
And Test
Functions
AC3
PCMPROL
MPEG
PNG
USER
Operation
Functions
PLAY
MUTE
UNMUTE
STOP
STOPF
STAT
SPDIFSTAT
GETPTC
NOP
Set-Up Functions
PLLTAB
PLLCFG
CFG
SETSTC
VER
BOOT
SPDIFCS
PARAM
INTRP
SETIO
POKE
PEEK
Read Command
READ
Reply Response
AC3STATR
PCMPROLR
MPEGSTATR
PNGSTATR
VERR
SETIOR
PLLR
PEEKR
SPDIFSTATR
GETPTCR
Progress Response
EXPECT
ISTATUS
Description
Commands to ZR38601 to perform a specific function
Select AC-3 or AC-3 + Pro Logic decoder function
Select PCM or Pro Logic decoder functions with PCM input and mixer function
Select MPEG or MPEG + Pro Logic decoder function
Select pink noise generator function
Select user defined function
Resume selected function operation and unmute audio output
Mute audio output without stopping the selected operation
Restore muted audio output while continuing the selected operation
Stop operation, retain data in input buffer and mute audio output
Stop operation, flush the data in the input buffer and mute audio output
Return decoder status information using the READ command
Return the S/PDIF input channel status
Return the PTC and STC values for timing synchronization
Not a command, does not affect operation. Will return a Progress response.
Set the PLL programmable registers
Define the PLL configuration
Configure the ZR38601 I/O to the specific system hardware
Set the system time clock and video delay
Return 32-bit ROM version number using the READ command
Load and execute the N parameter words of bootstrap program
Write the S/PDIF output channel status
Define parameters for special functions
Interpret: load and execute four parameter words as a ZR38001 instruction
Set, test and return general purpose single-bit I/O registers
Load N 32-bit words to the core processor RAM at the given start address
Read N 32-bit words from core processor RAM at the given start address
Commands to ZR38601 to return Reply words to the host
Command to ZR38601 to return a Reply word after specific commands
Data words returned to the host as the result of sending specific commands followed by READ commands
Status and information about the AC-3 stream
Status and information about the PCM or Pro Logic stream
Status and information about the MPEG stream
Status and information about the PNG stream
Four byte version number of ROM read by VER command
Two words of GPIOC and GPIO registers
Two bits which indicate the PLL lock status
N 32-bit words from core processor RAM specified by PEEK command
S/PDIF input channel status
PTC and STC values of 32 bits each
Data words returned to host in the normal process of sending any command
Expected number of parameter words still to be received from host
Interpreter status
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| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ ZR38601.PDF Datasheet ] | |
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