PCM69AU

® PCM67P/U PCM69AP/AU SBAS024 Advanced 1-Bit BiCMOS Dual 18-Bit DIGITAL-TO-ANALOG CONVERTER FEATURES q 18-BIT RESOLUTION DUAL AUDIO DAC q EXCELLENT THD PERFORMANCE: 0.0025% (–92dB) at F/S, K Grade 1.0% (–40dB) at –60dB, K Grade q HIGH S/N RATIO: 110dB typ (IHF-A) q DUAL, CO-PHASE q SINGLE SUPPLY +5V OPERATION q LOW POWER: 75mW typical q CAPABLE OF 16X OVERSAMPLING q AVAILABLE IN SPACE SAVING 16-PIN DIP OR 20-PIN SOIC q OPERATING TEMP RANGE: –25°C to +85°C q EXTREMELY LOW GLITCH ENERGY DESCRIPTION The PCM67 and PCM69A dual 18-bit DAC are low cost, dual output 18-bit BiCMOS digital-to-analog converters utilizing a novel architecture to achieve excellent low level performance. By combining a conventional thin-film R-2R ladder DAC, a digital offset technique with analog correction and an advanced one-bit DAC using first order noise shaping technique, the PCM67 and PCM69A achieve high resolution, minimal glitch, and low zero-crossing distortion. PCM67 digital offset occurs at...