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PCM5142 Datasheet(PDF) 2 Page - Texas Instruments |
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PCM5142 Datasheet(HTML) 2 Page - Texas Instruments |
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2 / 111 page  PCM5141, PCM5142 SLAS759A – AUGUST 2012 – REVISED SEPTEMBER 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. OTHER KEY FEATURES The PCM514x provides 2.1VRMS ground centered • PCM Data Formats: I2S, Left-Justified, Right- outputs, allowing designers to eliminate DC blocking Justified, TDM capacitors on the output, as well as external muting circuits traditionally associated with single supply line • SPI or I2C Control drivers. • Software or Hardware Configuration The integrated line driver surpasses all other charge- • Automatic Power-Save Mode When LRCK And pump based line drivers by supporting loads down to BCK Are Deactivated 1k Ω. By supporting loads down to 1kΩ, the PCM514x • 1.8V or 3.3V Failsafe LVCMOS Digital Inputs can essentially drive up to 10 products in parallel, • Single Supply Operation: such as LCD TV, DVDR, AV Receivers. – 3.3V Analog, 1.8V or 3.3V Digital The integrated PLL on the device removes the • Integrated Power-On Reset requirement for a system clock (commonly known as master clock), allowing a 3-wire I2S connection and • Small 28-pin TSSOP Package reducing system EMI. APPLICATIONS In addition, the PLL is completely programmable, allowing the device to become the I2S clock master • A/V Receivers and drive a DSP serial port as a slave. The PLL also • DVD, BD Players accepts a non-standard clock (up to 50MHz) as a • HDTV Receivers source to generate the audio related clock (for example 24.576MHz). • Applications Requiring 2VRMS Audio Output Intelligent clock error and PowerSense undervoltage DESCRIPTION protection utilizes a two level mute system for pop- free performance. Upon clock error or system power The PCM514x devices are a family of monolithic failure, the device digitally attenuates the data (or last CMOS integrated circuits that include a stereo digital- known good data), then mutes the analog circuit. to-analog converter and additional support circuitry in a small TSSOP package. The PCM514x uses the Compared with existing DAC technology, the latest generation of TI’s advanced segment-DAC PCM514x family offers up to 20dB lower out-of-band architecture to achieve excellent dynamic noise, reducing EMI and aliasing in downstream performance and improved tolerance to clock jitter. amplifiers/ADCs. (from traditional 100kHz OBN measurements all the way to 3MHz). Members of the PCM514x family integrate a fully programmable miniDSP core, allowing developers to The PCM514x accepts industry-standard audio data integrate filters, dynamic range controls, custom formats with 16- to 32-bit data. Sample rates up to interpolators and other differentiating features to their 384kHz are supported. products. Table 1. Differences Between PCM514x Devices Part Number Dynamic Range SNR THD PCM5142 112dB 112dB –93dB PCM5141 106dB 106dB –92dB 2 Submit Documentation Feedback Copyright © 2012, Texas Instruments Incorporated Product Folder Links: PCM5141 PCM5142 |
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