CS4237B Datasheet | Cirrus Logic

Description The CS4237B 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 CS4237B 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 CS4237B includes hardware master volume control pins as well as extensive power management and SRS 3D sound technology. patible with Sound Blaster , Sound Blaster Pro TM, and Windows Sound System TM Advanced MPC3-pliant 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 patible 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 patible XTALI XTALO VREF REFFLT VREF ORDERING INFORMATION: CS4237B-JQ 100 pin TQFP, 14x14x1.4mm CS4237B-KQ 100 pin TQFP, 14x14x1.4mm L/RFILT OSCILLATOR INPUT MIXER ISA BUS INTERFACE LINEAR µ-LAW A-LAW ADPCM Sample Rate Converters 16 SAMPLE FIFO GAIN SD<7:0> SA<11:0> IOR IOW AEN IOCHRDY IRQ<A:F> DRQ<A:C> DACK<A:C> Σ Stereo A/D GAIN L/RLINE GAIN PLUG AND PLAY CODEC REG I/F SERIAL SHIFT Loopback Monitor Attenuation GAIN L/RAUX1 L/RAUX2 CMAUX2 L/RMIC GAIN FM Synthesizer GAIN ATTN. Sample Rate Converters LINEAR µ-LAW A-LAW ADPCM 16 SAMPLE FIFO Config IO IRQ DMA Decode Logic MIN MOUT L/ROUT DIGITAL MIXER DSP OUTPUT MIXER Σ Σ MPU-401 UART with FIFOS Σ GAIN Stereo D/A SA<12:15> (CDROM) (Modem) CD-ROM, Modem, or Upper Address Bits DIGITAL/ ANALOG JOYSTICK LOGIC CS9236 SERIAL PORT DSP SERIAL PORT S/PDIF Synth. Interface or Hardware Volume...