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PCM5122 Datasheet(PDF) 1 Page - Texas Instruments |
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PCM5122 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 107 page  Current Segment DAC Zero Data Detector PLL Clock Charge Pump VCom POR Clock Halt Detection Advanced Mute Control MCK BCK LRCK CAPP CAPM VNEG UVP/XSMT LINE OUT DOUT (I 2S) through any GPIO PCM512x MODE1 MS/MODE2 MOSI/SDA/ATT2 MC/SCL/ATT1 GPIO6/FLT MISO/ADR1/FMT GPIO Power Supply CPVDD (3.3V) AVDD (3.3V) DVDD (1.8V or 3.3V) GND Program RAM Digital Volume Control DIN (I 2S) Current Segment DAC SPI/I 2C GPIO5/ATT0 GPIO4/MAST GPIO3/AGNS GPIO2/ADR2/DOUT UVP/ Reset PCM5121, PCM5122 www.ti.com SLAS763A – AUGUST 2012 – REVISED SEPTEMBER 2012 2VRMS DirectPath™, 112/106dB Audio Stereo DAC with 32-bit, 384kHz PCM Interface Check for Samples: PCM5121, PCM5122 1 FEATURES Typical Performance (3.3V Power Supply) 23 • Register-Selectable Audio-Processing Parameter PCM5122 PCM5121 Functions SNR 112dB 106dB – Dynamic Range Control (DRC) Dynamic Range 112dB 106dB – Equalization (EQ) THD+N @ - 1dBFS –93dB –92dB – Filtering Full Scale Output 2.1VRMS (GND center) • Market-Leading Low Out-of-Band Noise Normal 8× Oversampling Digital Filter Latency: 20/fS • Selectable Digital-Filter Latency and Low Latency 8× Oversampling Digital Filter Latency: 3.5/fS Performance Sampling Frequency 8kHz to 384kHz • No DC Blocking Capacitors Required System Clock Multiples (fSCK): 64, 128, 192, 256, 384, 512, 768, 1024, 1152, 1536, 2048, 3072; up to 50 MHz • Integrated Negative Charge Pump • Internal Pop-Free Control For Sample-Rate Changes Or Clock Halts • Intelligent Muting System; Soft Up or Down Ramp and Analog Mute For 120dB Mute SNR With Popless Operation Figure 1. PCM512x Functional Block Diagram 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 System Two Cascade, Audio Precision are trademarks of Audio Precision. 3 DirectPath is a trademark of Texas, Instruments, Inc.. PRODUCTION DATA information is current as of publication date. Copyright © 2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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