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PCM5121 Datasheet(PDF) 5 Page - Texas Instruments |
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PCM5121 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 121 page  CPVDD CAPP CPGND CAPM VNEG OUTL OUTR AVDD AGND VCOM SDA SCL GPIO5 GPIO4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DVDD DGND LDOO XSMT ADR1 LRCK DIN BCK SCK GPIO6 MODE2 MODE1 ADR2 GPIO3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 CPVDD CAPP CPGND CAPM VNEG OUTL OUTR AVDD AGND VCOM MOSI MC GPIO5 GPIO4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DVDD DGND LDOO XSMT MISO LRCK DIN BCK SCK GPIO6 MS MODE1 GPIO2 GPIO3 28 27 26 25 24 23 22 21 20 19 18 17 16 15 CPVDD CAPP CPGND CAPM VNEG OUTL OUTR AVDD AGND DEMP ATT2 ATT1 ATT0 MAST 1 2 3 4 5 6 7 8 9 10 11 12 13 14 DVDD DGND LDOO XSMT FMT LRCK DIN BCK SCK FLT MODE2 MODE1 DOUT AGNS 28 27 26 25 24 23 22 21 20 19 18 17 16 15 5 PCM5121, PCM5122 www.ti.com SLAS763C – AUGUST 2012 – REVISED OCTOBER 2018 Product Folder Links: PCM5121 PCM5122 Submit Documentation Feedback Copyright © 2012–2018, Texas Instruments Incorporated 6 Pin Configuration and Functions RHB Package I2C Mode (MODE1 tied to DGND and MODE2 tied to DVDD) Top View RHB Package SPI Mode (MODE1 tied to DVDD) Top View RHB Package Hardwired Mode (MODE1 tied to DGND, MODE2 tied to DGND) Top View Table 3. Gain and Attenuation in Hardwired Mode ATT PIN CONDITION (ATT2 : ATT1 : ATT0) GAIN AND ATTENUATION LEVEL ( 0 0 0 ) 0 dB ( 0 0 1 ) 3 dB ( 0 1 0 ) 6 dB ( 0 1 1 ) 9 dB ( 1 0 0 ) 12 dB ( 1 0 1 ) 15 dB ( 1 1 0 ) –6 dB ( 1 1 1 ) –3 dB 6.1 Pin Functions PIN I/O DESCRIPTION NAME MODE, NO. I2C SPI HW CPVDD 1 1 1 - Charge pump power supply, 3.3 V CAPP 2 2 2 O Charge pump flying capacitor terminal for positive rail CPGND 3 3 3 - Charge pump ground CAPM 4 4 4 O Charge pump flying capacitor terminal for negative rail VNEG 5 5 5 O Negative charge pump rail terminal for decoupling, –3.3 V OUTL 6 6 6 O Analog output from DAC left channel OUTR 7 7 7 O Analog output from DAC right channel AVDD 8 8 8 - Analog power supply, 3.3 V AGND 9 9 9 - Analog ground VCOM 10 10 – O I2C, SPI VCOM output (optional mode selected by register; default setting is VREF mode.) When in VREF mode (default), this pin ties to GND. When in VCOM mode, decoupling capacitor to GND is required. DEMP – – 10 I HW DEMP: De-emphasis control for 44.1-kHz sampling rate: Off (Low) / On (High) |
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