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首 页 > 新闻动态 > 公司新闻 > 供应 PCM2702E BB SSOP-28 16位立体声 供应 PCM2702E BB SSOP-28 16位立体声FEATURES
INTEGRATED USB INTERFACE: Full-Speed Transceiver Supports 12Mbps Data Transfer Fully Compliant with the USB 1.0 Specification Adaptive Mode for Isochronous Transfer Self-Powered Device ACCEPTS 16-BIT STEREO AND MONO USB AUDIO DATA STREAMS ANALOG PERFORMANCE (VCC = 5V): Dynamic Range: 100dB (typ at 16-bit) SNR: 105dB (typ) THD+N: 0.002% (typ at 16-bit) Full-Scale Output: 3.1VPP 8X OVERSAMPLING DIGITAL FILTER: Passband: 0.454fS Stopband: 0.546fS Passband Ripple: ±0.002dB Stopband Attenuation: –82dB SAMPLING RATE (FS): 32kHz, 44.1kHz, 48kHz ON-CHIP CLOCK GENERATOR WITH SINGLE 12MHz CLOCK SOURCE MULTI-FUNCTIONS: Digital Attenuator: 0dB to –64dB, 1dB/step Soft Mute Zero Flag Suspend Flag Playback Flag DUAL POWER SUPPLIES: +5V for Analog Portion +3.3V for Digital Portion PACKAGE: SSOP-28 DESCRIPTION The PCM2702 is a single chip digital-to-analog converter offering two D/A output channels and an integrated USB 1.0 compliant interface controller. The newly developed SpAct™ (Sampling Period Adaptive Controlled Tracking) system recovers a stable, low-jitter clock for internal PLL and DAC operation from the USB interface audio data. The PCM2702 is based upon Texas Instruments Enhanced Multi-level Delta-Sigma Modulator, an 8x oversampling digital interpolation filter, and an analog output low-pass filter. The PCM2702 can accept a 48kHz, 44.1kHz and 32kHz sampling rates, using either 16-bit stereo or monaural audio data. Digital attenuation and soft-mute features are included, and are controlled via USB audio class request. Patents Pending. SpAct™ is a trademark of Texas Instruments. PCM2702 PCM2702 SBAS142A – MAY 2000 – REVISED NOVEMBER 2007 www.ti.com PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2000-2007, Texas Instruments Incorporated Please |
