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WM9704M Datasheet(PDF) 4 Page - Wolfson Microelectronics plc |
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WM9704M Datasheet(HTML) 4 Page - Wolfson Microelectronics plc |
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4 / 37 page  WM9704M Production Data WOLFSON MICROELECTRONICS LTD PD Rev 3.2 January 2001 4 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 DAC Circuit Specifications (AVDD = 5V) 48kHz sampling SNR A-weighted (Note 1) 85 96 dB Full scale output voltage VREF = 2.5V 1.0 Vrms THD -3dB output 74 90 % 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 = 5V) 48kHz sampling SNR A-weighted (Note 1) 75 85 dB ADC input for full scale output VREF = 2.5V 1.0 Vrms THD -6dBFS input 74 90 % 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 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 AVSS 1.0 AVDD Vrms Maximum output voltage on LINEOUT 1.0 1.8 Vrms THD 74 90 % Frequency response (+/-1dB) 20 20,000 Hz Input impedance (CD inputs) At any gain 10 15 kohm At max gain 10 20 kohm Input impedance (other mixer inputs) At 0db gain 100 kohm At max gain 80 kohm Input impedance MIC inputs At 0db gain 10 15 kohm PSRR 20 to 20kHz 40 dB DAC Circuit Specifications (AVDD = 3.3V) 48kHz sampling SNR A-weighted (Note 1) 96 dB Full scale output voltage VREF = 1.65V 0.7 Vrms THD -3dBFSsp output 90 % 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 |
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