PROGRAMMABLE DIGITAL
AUDIO PROCESSOR
Solutions
Zoran Corporation
3112 Scott Boulevard
Santa Clara, CA 95054-3317
T e l 408.919.4 1 1 1
Fax 408.919.4122
www.zoran.com
on a
Chip
ZR38601
Product Brief
Benefits Overview
The Zoran
®
(ZR38601) is a high-performance, programmable digital audio
sig-nal processor capable of real-time, single-chip decoding of Dolby Digital
5.1- channel and MPEG-2 digital surround algorithms. It is the fourth genera-
tion decoder made by Zoran, based on the proven ZR38600 architectures.
The hardware block floating-point makes it optimum for Dolby Digital and
complex digital audio signal processing applications.
Due to its programmable high-performance and high level of integration, the
ZR38601 is unusually flexible in meeting a wide range of system require-
ments at the lowest possible system cost. At the low end, it can provide stan-
dard fixed decoding functions 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 pro-
vide eight channels of output, analog input, long-delay memories, custom
operating features, and the ability to be upgraded with downloaded
SiliconSoftware
®
product enhancements. Yet all of this flexibility comes with-
out design complexity. Highly configurable standard functions with a simple
command structure minimize software development, while a full set of devel-
opment tools are available for the highly-custom product developer.
The ZR38601 is suitable primarily for audio applications such as Audio/Visual
home theater receivers, Digital Audio Broadcast (DAB), 3-D audio, six-chan-
nel speaker systems, and Karaoke processors; video applications like SDTV
and HDTV stereo television receivers and digital cable, and satellite TV set-
top boxes; and multimedia PC applications such as DVD players.
Encoded Data Input
XTAL
Host
Processor
(Optional)
Decoded Audio Outputs
SPI or Z2C Serial Interface
Left
Right
Left Surround
Right Surround
Center
Subwoofer
Left Center
Right Center
DAC
S/PDIF
Optical
Interface
DAC
ZR38601
DAC
DAC
(Optional)
S/PDIF Input
General Purpose Control I/O
Figure 1. A typical Low-Parts-Count ZR38601 System
Key Features
Standard High Performance Functions in ROM
- Dolby Digital, 5.1-channel and 2-channel decoding
up to 640 Kbits per second
- Dolby Pro Logic encoding and decoding
- MPEG-1 and MPEG-2 two channel decoding with MPEG-2
- PES stream parsing, PTS decoding and SCR handling
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
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 Dolby Digital and MPEG transmitter output
Low System Cost
- Host less operation without glue chips
- Separate internal PLLs for DSP core and audio I/O
- No external RAM required for 5.1 Dolby Digital/MPEG-2
- 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
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
12/00-LD1500
ZR38601-PB-3.0
ZORAN [ ZORAN CORPORATION ]
