CS4239
Advanced Product Databook
FEATURES
s
Compatible with Sound Blaster™, Sound Blaster
Pro™, and Windows Sound System™
s
Integrated CrystalClear™ 3D Stereo
Enhancement
s
Enhanced Stereo Full Duplex Operation
s
Dual Type-F DMA Support
s
Industry Leading Delta-Sigma Data Converters
(86 dB FS A)
s
Default Internal PnP Resources
s
3.3 V or 5 V ISA Bus Operation
s
APM and ACPI Compliant Power Management
s
Asynchronous Digital Serial Interface (ZVPORT)
s
CS4610 Audio Accelerator Interface
s
CS9236 Wavetable Interface
s
CS4236B/CS4237B/CS4238B Register
Compatible
CrystalClear™
Portable ISA Audio System
DESCRIPTION
The CS4239 is a single chip multimedia audio system
that is a pin-compatible upgrade to the CS423xB for
many designs. The product includes an integrated FM
synthesizer and a Plug-and-Play interface. In addition,
the CS4239 includes hardware master volume control
pins as well as extensive power management and 3D
sound technology. The CS4239 adds a Zoom-Video
asynchronous digital serial interface to the industry
standard CS423xB. The CS4239 is compatible with the
Microsoft
®
Windows Sound System standard and will
run software written to the Sound Blaster and Sound
Blaster Pro interfaces. The CS4239 is fully compliant
with Microsoft’s PC ’97 and PC ’98 audio requirements.
ORDERING INFO
CS4239-JQ 100 pin TQFP, 14x14x1.4mm
CS4239-KQ 100 pin TQFP, 14x14x1.4mm
XTALI
XTALO
VREF
VREF
INPUT MIXER
OSCILLATOR
SD<7:0>
SA<11:0>
IOR
IOW
AEN
IOCHRDY
IRQ<A:G>
DRQ<A:C>
DACK<A:C>
ISA
BUS
INTERFACE
FIFO
Stereo
ADC1
Σ
GAIN
L/RAUX1
GAIN
PLUG
AND
PLAY
CODEC
REG
I/F
GAIN
FIFO
Stereo
DAC1
ATTN
OUTPUT MIXER
FM
Synthesizer
Stereo
DAC2
L/RAUX2
CMAUX2
MIC
Config
IO
IRQ
DMA
MIN
Decode
Logic
Σ
MPU-401
UART
with
FIFOS
WSS
SBPRO
Registers
3D
Enhancement
ATTN
L/ROUT
SA<12:15)
(CDROM)
CD-ROM or
Upper Address Bits
ANALOG
JOYSTICK
LOGIC
CS4610/
CS9236
SERIAL
PORT
UP
EEPROM
Interface
Hardware
Volume Control
DOWN
MUTE
ZVPORT
INTERFACE
BRESET
JOYSTICK
SERIAL PORT
ZVPORT
MIDI
SCL
SDA
DEC ‘97
Copyright
©
Cirrus Logic, Inc. 1997
(All Rights Reserved)
DS253PP2
CIRRUS [ CIRRUS LOGIC ]
