PCM1770

BurrĆBrown Products from Texas Instruments PCM1770, PCM1771 SLES011E – SEPTEMBER 2001 – REVISED MARCH 2007 LOW-VOLTAGE AND LOW-POWER STEREO AUDIO DIGITAL-TO-ANALOG CONVERTER WITH HEADPHONE AMPLIFIER FEATURES Multilevel DAC Including Headphone Amplifier Analog Performance (VCC, VHP = 2.4 V): – Dynamic Range: 98 dB Typ – THD+N at 0 dB: 0.1% Typ – THD+N at –20 dB: 0.04% Typ – Output Power at RL = 16 Ω: 13 mW (Stereo), 26 mW (Monaural) 1.6-V to 3.6-V Single Power Supply Low Power Dissipation: 6.5 mW at VCC, VHP = 2.4 V System Clock: 128 fS, 192 fS, 256 fS, 384 fS Sampling Frequency: 5 kHz to 50 kHz Software Control (PCM1770): – 16-, 20-, 24-Bit Word Available – Left-, Right-Justified, and I2S – Slave/Master Selectable – Digital Attenuation: 0 dB to –62 dB, 1 dB/Step – 44.1-kHz Digital De-Emphasis – Zero Cross Attenuation – Digital Soft Mute – Monaural Analog-In With Mixing – Monaural Speaker Mode Hardware Control (PCM1771): – Left-Justified and I2S – 44.1-kHz Digital De-Emphasis – Monaural Analog-In With Mixing Pop-Noise-Free Circuit 3.3-V Tolerant Packages: TSSOP-16 and VQFN-20 APPLICATIONS Portable Audio Player Cellular Phone PDA Other Applications Requiring Low-Voltage Operation DESCRIPTION The PCM1770 and PCM1771 devices are CMOS, monolithic, integrated circuits which include stereo digital-to-analog converters, headphone circuitry, and support circuitry in small TSSOP-16 and VQFN-20 packages. The data converters use TI's enhanced multilevel ...