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CS4237B Datasheet(PDF) 1 Page - Cirrus Logic |
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CS4237B Datasheet(HTML) 1 Page - Cirrus Logic |
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1 / 114 page  • Integrated SRS® 3D Sound Technology • Compatible with Sound BlasterTM, Sound Blaster Pro TM, and Windows Sound SystemTM • Advanced MPC3-Compliant Input and Output Mixer • Enhanced Stereo Full Duplex Operation • Dual Type-F DMA Support • Industry Leading Delta-Sigma Data Converters • Fully Plug-and-Play ISA Compatible • 3.3 V or 5 V ISA Bus Operation • Programmable Power Management • Hardware Master Volume Control • Enhanced Digital Gameport • CS9236 Wavetable Digital Audio Interface • MPU-401 MIDI Interface • Consumer IEC-958 Digital Output (S/PDIF) • CS4236/CS4232/CS4231 Register Compatible General Description The CS4237B is a single chip multimedia audio system that provides compatibility with the Microsoft Windows Sound System standard and will run software written to the Sound Blaster and Sound Blaster Pro interfaces. The CS4237B is fully compliant with Microsoft’s PC’ 97 and WHQL audio requirements. The product includes an internal FM synthesizer and Plug-and-Play external interfaces for Wavetable, CD-ROM, and modem de- vices. In addition, the CS4237B includes hardware master volume control pins as well as extensive power management and SRS 3D sound technology. ORDERING INFORMATION: CS4237B-JQ 100 pin TQFP, 14x14x1.4mm CS4237B-KQ 100 pin TQFP, 14x14x1.4mm SEP ’97 DS213PP4 1 Cirrus Logic, Inc. P.O. Box 17847, Austin, TX 78760 (512) 445 7222 Fax: (512) 445 7581 http://www.cirrus.com CrystalClear ™ Advanced Audio System with 3D Sound This document contains information for a new product. Cirrus Logic, Inc. reserves the right to modify this product without notice. Advanced Product Information Copyright © Cirrus Logic, Inc. 1997 (All Rights Reserved) GAIN GAIN GAIN GAIN ATTN. L/RAUX1 L/RLINE L/RAUX2 L/RMIC MIN Σ GAIN OSCILLATOR VREF GAIN CMAUX2 MOUT L/ROUT INPUT MIXER OUTPUT MIXER VREF REFFLT XTALI XTALO L/RFILT LINEAR µ-LAW A-LAW ADPCM LINEAR µ-LAW A-LAW ADPCM ISA BUS INTERFACE PLUG AND PLAY CODEC REG I/F Config IO IRQ DMA CD-ROM, Modem, or Upper Address Bits Decode Logic DACK<A:C> DRQ<A:C> IRQ<A:F> IOCHRDY AEN IOW IOR SA<11:0> SD<7:0> FM Synthesizer SERIAL SHIFT DIGITAL/ ANALOG JOYSTICK LOGIC MPU-401 UART with FIFOS WSS SBPRO Registers Synth. Interface or Hardware Volume Control Peripherals & EEPROM Interface XIOW XIOR XD<7:0> XA<2:0> JOYSTICK MIDI SCS/ UP BRESET SINT/ DOWN S/PDIF DSP SERIAL PORT GAIN DSP SERIAL PORT CS9236 SERIAL PORT SA<12:15> (CDROM) (Modem) MUTE WAVETABLE SERIAL PORT Σ Σ Loopback Monitor Attenuation Σ DIGITAL MIXER CS4237B |
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