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WM9708 Datasheet(PDF) 5 Page - Wolfson Microelectronics plc |
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WM9708 Datasheet(HTML) 5 Page - Wolfson Microelectronics plc |
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5 / 28 page  Advanced Information WM9708 WOLFSON MICROELECTRONICS LTD AI Rev 2.0 April 2001 5 Test Characteristics: AVDD = 5V, GND = 0V …………..TA = 0 oC to +70oC, unless otherwise stated DVDD = 3.3V, GND = 0V …………..TA = 0 oC to +70oC, unless otherwise stated PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Mixer Circuit Specifications (AVDD = 5V) 48kHz sampling SNR CD path A-weighted (Note 1) 90 100 dB SNR Other paths A-weighted (Note 1) 85 95 dB Maximum input voltage AGND 1.0 AVDD Vrms Maximum output voltage on LINEOUT 1.0 1.8 Vrms THD 0dBv input 74 90 dB Frequency response (+/-1dB) 20 20,000 Hz Input impedance (CD inputs) At any gain 15 kohm At max gain 10 20 kohm Input impedance (other mixer inputs) At 0db gain 50 100 kohm At max gain 10 30 kohm Input impedance MIC inputs At 0db gain 55 110 kohm PSRR 20 to 20kHz 50 dB DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling SNR A-weighted (Note 1) 92 dB Full scale output voltage VREF = 1.65V 0.7 Vrms THD -3dBFS input 85 dB Frequency response 20 19,200 Hz Transition band 19,200 28,800 Hz Stop band 28,800 Hz Out of band rejection -40 dB Spurious tone reduction -100 dB PSRR 20 to 20kHz 40 dB ADC Circuit Specifications (AVDD = 3.3V) 48kHz sampling SNR A-weighted (Note 1) 85 dB ADC input for full scale output VREF = 1.65V 0.7 Vrms THD -6dBv input 80 dB Frequency response 20 19,200 Hz Transition band 19,200 28,800 Hz Stop band 28,800 Hz Stop band rejection -74 dB PSRR 20 to 20kHz 40 dB |
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