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TLV320AIC28IRGZR Datasheet(PDF) 6 Page - Texas Instruments |
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TLV320AIC28IRGZR Datasheet(HTML) 6 Page - Texas Instruments |
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6 / 85 page  TLV320AIC28 SLAS418B − FEBRUARY 2004 − REVISED MAY 2005 www.ti.com 6 ELECTRICAL CHARACTERISTICS (continued) At +25 °C, AVDD1, AVDD2, DRVDD, IOVDD = 3.3 V, BVDD = 3.9 V, DVDD = 1.8 V, Vref = 2.5 V, Fs (Audio) = 48 kHz, unless otherwise noted (continued) PARAMETER TEST CONDITIONS MIN TYP MAX UNITS DAC HEADPHONE OUTPUT Load = 16 Ω (single-ended), 50 pF Full-scale output voltage (0dB) 0.848 Vrms Output common mode 1.5 V SNR Measured as idle channel noise, A-weighted 85 95 dBA THD −1 dBFS Input, 0-dB gain −80 −60 dB PSRR 217 Hz, 100 mV on AVDD1/AVDD2/DRVDD(1) 55 dB PSRR 1020 Hz, 100 mV on AVDD1/AVDD2/DRVDD(1) 55 dB Interchannel isolation Coupling from ADC to DAC 80 dB Mute attenuation 100 dB Maximum output power Per channel 44 mW Digital volume control −63.5 0 dB Digital volume control step size 0.5 dB Channel separation Between SPK1 and SPK2 −75 dB DAC SPEAKER OUTPUT Load = 8 Ω (differential), 50 pF Full-scale output voltage (0 dB) 1.838 Vrms Output common mode 1.75 V SNR Measured as idle channel noise, A-weighted 90 98 dBA THD −1 dBFS Input, 0-dB gain −74 −55 dB 217 Hz, 100 mV on AVDD1/2 70 PSRR 217 Hz, 100 mV on BVDD 70 dB PSRR 1020 Hz, 100 mV on AVDD1/2 70 dB 1020 Hz, 100 mV on BVDD 70 Interchannel isolation Coupling from ADC to DAC 90 dB Mute attenuation 100 dB Maximum output power 400 mW CELLPHONE MIC INPUT TO CPOUT 1020-Hz Sine wave input on MICIN_HND, load on CP_OUT = 10 k Ω, 50 pF Full-scale input voltage (0 dB) 0.707 Vrms Input common mode 1.5 V Full-scale output voltage (0 dB) 0.707 Vrms Output common mode 1.5 V SNR Measured as idle channel noise, A-weighted 80 89 dBA THD 0 dBFS Input, 0-dB gain −73 −60 dB 217 Hz, 100 mV on AVDD1/AVDD2/DRVDD 43 PSRR 1020 Hz, 100 mV on AVDD1/AVDD2/DRVDD 43 dB Interchannel isolation CP_IN to CP_OUT 75 dB Mute attenuation CP_OUT muted 100 dB (1) DAC PSRR measurement is calculated as: PSRR + 20 log 10 VSIGsup V SPK1 2 |
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