PCM1770PW Datasheet

Audio D/A Converter ICs


The PCM1770PW 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 Δ-Σ architecture, which employs noise shaping and multilevel amplitude quantization to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1770PW and PCM1771 devices accept several industry standard audio data formats with 16- to 24-bit data, left-justified, I2S, etc., providing easy interfacing to audio DSP and decoder devices.Sampling rates up to 50 kHz are supported. A full set of user-programmable functions are accessible through a 3-wire serial control port, which supports register write functions. PCM1770PW 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 PCM1770PW Applications •  Portable Audio Player•  Cellular Phone•  PDA•  Other Applications Requiring Low-Voltage Operation


[{"Name":"Number of Converters","Value":"2"},{"Name":"Resolution ","Value":"24 bit "},{"Name":"Interface Type ","Value":"Serial (3-Wire) "},{"Name":"Conversion Rate ","Value":"48 KSPs "},{"Name":"SNR","Value":"98 dB"},{"Name":"Operating Supply Voltage","Value":"2.4 V "},{"Name":"Number of DAC Outputs","Value":"2"},{"Name":"Operating Temperature Range","Value":"- 25 C to + 85 C "},{"Name":"Mounting Style","Value":"SMD/SMT"},{"Name":"Package / Case","Value":"TSSOP-16"},{"Name":"Packaging","Value":"Tray"}]

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