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CS8420 Datasheet(PDF) 5 Page - Cirrus Logic |
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CS8420 Datasheet(HTML) 5 Page - Cirrus Logic |
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5 / 80 page  CS8420 DS245PP2 5 1. CHARACTERISTICS/SPECIFICATIONS PERFORMANCE SPECIFICATIONS (T A = 25 °C; VA+ = VD+ = 5V ±5%) DIGITAL FILTER CHARACTERISTICS (T A = 25 °C; VA+ = VD+ = 5V ±5%) Notes: 1. The value shown is for Fsi = Fso = 48 kHz. The group delay scales with input and output sample rate according to the following formula: tgd = 41/Fsi + 43/Fso POWER AND THERMAL CHARACTERISTICS (AGND, DGND = 0V, all voltages with respect to ground) Notes: 2. ‘-CS’ parts are specified to operate over -10°C to 70 °C but are tested at 25 °C only. * Parameter Definitions are given at the end of this data sheet Parameter* Symbol Min Typ Max Units Dynamic Range 120 128 - dB Input Sample Rate (serial input port) Fsi 8 - 108 kHz Output Sample Rate Fso 8 - 108 kHz Output to Input Sample Rate Ratio 0.33 - 3 Total Harmonic Distortion + Noise 1 kHz, -1dBFS, 0.33 < Fso/Fsi < 1.7 1 kHz, -1dBFS, 0.33 < Fso/Fsi < 3 10 kHz, -1dBFS, 0.33 < Fso/Fsi < 1.7 10 kHz, -1dBFS, 0.33 < Fso/Fsi < 3 THD+N - - - - - - - - -117 -112 -110 -107 dB dB dB dB Peak idle channel noise component - - -140 dBFS Input Jitter Tolerance of SRC - - TBD ns Resolution 16 - 24 bits Gain Error -0.12 - 0 dB Parameter* Symbol Min Typ Max Units Passband Upsampling Downsampling 0 0 - - 0.4535*Fsi 0.4535*Fso Hz Hz Passband Ripple - - ±0.007 dB Stopband (Downsampling) 0.5465*Fso - Fsi/2 Hz Stopband Attenuation 110 - - dB Group Delay (Note 1) tgd - - 1.75 ms Group Delay Variation vs. Frequency ∆t gd -- 0.0 µs Interchannel Phase Deviation - - 0.0 ° Parameter Symbol Min Typ Max Units Power Supply Voltage VD+,VA+ 4.75 5.0 5.25 V Power Consumption at 96 kHz Fso and Fsi Power Consumption at 48 kHz Fso and Fsi - - 660 350 TBD TBD mW mW Supply Current at 96 kHz Fso and Fsi VA+ VD+ - - 7.0 125 TBD TBD mA mA Supply Current in power down (RST high, VD+ & VA+) -0.5 - mA Ambient Operating Temperature (Note 2) TA -10 25 70 °C Junction Temperature TJ - - 135 °C Junction to Ambient thermal impedance (28 pin SOIC) θ JA -65 - °C/W |
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