AD1871 Datasheet | Analog Devices

a Features 5.0 V Stereo Audio ADC with 3.3 V Tolerant Digital Interface Supports 96 k Hz Sample Rates Supports 16-/20-/24-Bit Word Lengths Multibit Sigma-Delta Modulators with “Perfect Differential Linearity Restoration” for Reduced Idle Tones and Noise Floor 105 d B (Typ) Dynamic Range Supports 256/512 and 768 ؋ f S Master Clocks Flexible Serial Data Port Allows Right-Justified, Left-Justified, I2S patible and DSP Serial Port Modes Cascadable (up to Four Devices) from a Single DSP SPORT Device Control via SPI patible Serial Port or Optional Control Pins On-Chip Reference 28-Lead SSOP Package APPLICATIONS Professional Audio Mixing Consoles Musical Instruments Digital Audio Recorders, Including CD-R, MD, DVD-R, DAT, HDD Home Theater Systems Automotive Audio Systems Multimedia Stereo Audio, 24-Bit, 96 k Hz, Multibit ⌺-⌬ ADC AD1871 PRODUCT OVERVIEW The AD1871 is a stereo audio ADC intended for digital audio applications requiring high performance analog-to-digital conversion. It Features two 24-bit conversion channels each with programmable gain amplifier (PGA), multibit sigma-delta modulator, and decimation filters. Each channel provides 105 db of dynamic range, making the AD1871 suitable for applications such as digital audio recorders and mixing consoles. Each of the AD1871’s input channels (left and right) can be configured as either differential or single-ended (two inputs muxed with internal single-ended-to-differential conversion). The input PGA Features a gain range of 0 d B to 12 d B in steps of 3 d B. The Σ-∆ modulator Features a proprietary multibit architecture that realizes optimum performance over an audio bandwidth with standard audio sampling rates of 32 k Hz up to 96 k Hz. The decimation filter response Features very low passband ripple and excellent stop-band attenuation. The AD1871’s audio data interface supports all mon interface formats such as I2S, left-justified, right-justified as well as other modes that allow for convenient connection to...