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CS4221 データシート(PDF) 4 Page - Cirrus Logic |
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CS4221 データシート(HTML) 4 Page - Cirrus Logic |
4 / 32 page CS4220 CS4221 4 DS284PP3 1. CHARACTERISTICS AND SPECIFICATIONS ANALOG CHARACTERISTICS (T A = 25° C; VA, VD = +5 V; Full Scale Input Sine wave, 997 Hz; Fs = 48 kHz; Measurement Bandwidth is 20 Hz to 20 kHz; Local components as shown in Figures 4 and 5; SPI® mode, Format 0, unless otherwise specified.) Notes: 1. Referenced to typical full-scale differential input voltage (2 Vrms). 2. Filter characteristics scale with output sample rate. For output sample rates, Fs, other than 48 kHz, the 0.01 dB passband edge is 0.4535x Fs and the stopband edge is 0.625x Fs. 3. The analog modulator samples the input at 6.144 MHz for an Fs equal to 48 kHz. There is no rejection of input signals which are multiples of the sampling frequency (n x 6.144 MHz ±21.8 kHz where n = 0,1,2,3...). 4. Group delay for Fs = 48 kHz, tgd = 15/48 kHz = 312 µs. Parameter Symbol CS4220/1 - KS Unit Min Typ Max Analog Input Characteristics ADC Resolution - - 24 Bits Total Harmonic Distortion THD - 0.003 - % Dynamic Range A-weighted unweighted 95 92 100 97 - - dB Total Harmonic Distortion + Noise (Note 1) THD+N - -92 -87 dB Interchannel Isolation (1 kHz) - 90 - dB Interchannel Gain Mismatch - - 0.1 dB Offset Error with High Pass Filter - - 0 LSB Full Scale Input Voltage (Differential) 1.9 2.0 2.1 Vrms Gain Drift - 100 - ppm/°C Input Resistance 10 - - k Ω Input Capacitance - - 15 pF Common Mode Input Voltage - 2.3 - V A/D Decimation Filter Characteristics Passband (Note 2) 0 - 21.8 kHz Passband Ripple - - ±0.01 dB Stopband (Note 2) 30 - 6114 kHz Stopband Attenuation (Note 3) 80 - - dB Group Delay (Fs = Output Sample Rate) (Note 4) tgd -15/Fs - s Group Delay Variation vs. Frequency ∆t gd -- 0 µs High Pass Filter Characteristics Frequency Response -3 dB (Note 2) -0.1 dB - - 3.7 20 - - Hz Phase Deviation @ 20 Hz (Note 2) - 10 - Degree Passband Ripple - - 0 dB |
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同様の説明 - CS4221 |
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