CS4238B Datasheet | Cirrus Logic

Description The CS4238B is a single chip multimedia audio system that provides patibility with the Microsoft Windows Sound System standard and will run software written to the Sound Blaster and Sound Blaster Pro interfaces. The CS4238B is fully pliant 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 devices. In addition, the CS4238B includes hardware master volume control pins as well as extensive power management and QSOUND 3D sound technology. ORDERING INFORMATION: CS4238B-KQ 100 pin TQFP, 14x14x1.4mm XTALI XTALO OSCILLATOR VREF REFFLT VREF SD<7:0> SA<11:0> IOR IOW AEN IOCHRDY IRQ<A:F> DRQ<A:C> DACK<A:C> ISA BUS INTERFACE LINEAR µ-LAW A-LAW ADPCM PLUG AND PLAY CODEC REG I/F SERIAL SHIFT Config IO IRQ Decode Logic FM Synthesizer LINEAR µ-LAW A-LAW ADPCM 16 SAMPLE FIFO Sample Rate Converters Stereo A/D L/RFILT INPUT MIXER GAIN Σ Loopback Monitor Attenuation DIGITAL MIXER Σ OUTPUT MIXER Σ GAIN GAIN L/RLINE GAIN GAIN GAIN L/RAUX1 L/RAUX2 CMAUX2 L/RMIC GAIN...