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CS4298-KQ Fiches technique(PDF) 5 Page - Cirrus Logic |
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CS4298-KQ Fiches technique(HTML) 5 Page - Cirrus Logic |
5 / 52 page CS4298 DS315PP2 5 1. CHARACTERISTICS AND SPECIFICATIONS AUDIO ANALOG CHARACTERISTICS (Standard test conditions unless otherwise noted: Tambient = 25° C, AVdd = 5.0 V ±5%, DVdd = 3.3 V ±5%; 1 kHz Input Sine wave; Sample Frequency, Fs = 48 kHz; ZAL=10 kΩ/680 pF load CDL = 18 pF load (Note 1); Measurement bandwidth is 20 Hz - 20 kHz, 18-bit linear coding for ADC, 20-bit linear coding for DAC; Mixer registers set for unity gain. Notes: 1. ZAL refers to the analog output pin loading and CDL refers to the digital output pin loading. 2. Parameter definitions are given in the Parameter and Term Definitions section. 3. Path refers to the signal path used to generate this data. These paths are defined in the Parameter and Term Definition section. 4. Typical measured with ZAL =47kΩ/680 pF load. 5. This specification is guaranteed by silicon characterization, it is not production tested. Parameter (Note 2)Symbol Path (Note 3) CS4298-KQ CS4298-JQ Unit Min Typ Max Min Typ Max Full Scale Analog Input Voltage Line Inputs Mic Inputs (20 dB=0) Mic Inputs (20 dB=1) A-D A-D A-D 0.91 0.91 0.091 1.00 1.00 0.10 - - - 0.91 0.91 0.091 1.00 1.00 0.10 - - - VRMS VRMS VRMS Full Scale Output Voltage (Note 4) Line and Alternate Line Outputs D-A 0.91 1.0 1.13 0.91 1.0 1.13 VRMS Frequency Response Analog Ac = ± 0.5 dB DAC Ac = ± 0.5 dB ADC Ac = ± 0.5 dB FR A-A D-A A-D 20 20 20 - - - 20,000 20,000 20,000 20 20 20 - - - 20,000 20,000 20,000 Hz Hz Hz Dynamic Range Stereo Analog inputs to LINE_OUT Mono Analog inputs to LINE_OUT DAC Dynamic Range ADC Dynamic Range DR A-A A-A D-A A-D 90 85 85 85 95 90 90 90 - - - - - - - - 90 85 87 85 - - - - dB FS A dB FS A dB FS A dB FS A DAC SNR (-20 dB FS input w/ CCIR-RMS filter on output) SNR D-A - 63 - - - - dB Total Harmonic Distortion + Noise (-3 dB FS input signal): Line/Alternate Line Output DAC ADC (all inputs except phone/mic) ADC (phone/mic) THD+N A-A D-A A-D A-D - - - - -94 -86 -87 -87 -80 -80 -80 -74 - - - - - - - - -74 -74 -74 -74 dB FS A dB FS A dB FS A dB FS A Power Supply Rejection Ratio (1 kHz, 0.5 VRMS w/ 5 V DC offset)(Note 5) 40 60 - - 40 - dB Interchannel Isolation 70 87 - - 87 - dB Spurious Tone (Note 5) - -100 - - -100 - dB FS Input Impedance (Note 5) 10 - - 10 - - k Ω External Load Impedance 10 - - 10 - - k Ω Output Impedance (Note 5) - 730 - - 730 - W Input Capacitance (Note 5) - 5 - - 5 - pF Vrefout 2.0 2.3 2.4 2.0 2.3 2.4 V |
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