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TLV320AIC21 Datasheet(PDF) 6 Page - Texas Instruments |
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TLV320AIC21 Datasheet(HTML) 6 Page - Texas Instruments |
6 / 53 page www.ti.com Digital Inputs and Outputs ADC PATH FILTER ADC DYNAMIC PERFORMANCE TLV320AIC20, TLV320AIC21 TLV320AIC24, TLV320AIC25 TLV320AIC20K, TLV320AIC24K SLAS363D – MARCH 2002 – REVISED APRIL 2005 FS = 8 KHz, outputs not loaded PARAMETER MIN TYP MAX UNIT VOH High-level output voltage, DOUT 0.8 IOVDD V VOL Low-level output voltage, DOUT 0.1 IOVDD V IIH High-level input current, any digital input 5 µA IIL Low-level input current, any digital input 5 µA Ci Input capacitance 3 pF Co Output capacitance 5 pF FS = 8 KHz (1)(2) TEST PARAMETER MIN TYP MAX MIN TYP MAX UNIT CONDITIONS PATH FILTER FIR FILTER IIR FILTER 0 Hz to 60 Hz -27 / 0.07 -27 / 0.15 60 Hz to 200 Hz -1 / 0.07 -0.75 / 0.15 200 Hz to 300 Hz -0.03 / 0.05 0. 11 / 0.15 300 Hz to 2.4 KHz -0.1 0.15 -0.1 0.25 Filter gain relative to gain 2.4 kHz to 3 kHz -0.05 0.15 -0.5 0.2 dB at 1020 Hz 3 kHz to 3.4 KHz -0.5 0.1 -0.5 0.2 3.4 kHz to 3.6 KHz -0.4 0.15 4 KHz -26 -42 4.5 KHz to 72 kHz -52 -52 (1) The filter gain outside of the passband is measured with respect to the gain at 1020 Hz. The analog input test signal is a sine wave with 0 dB = 4 VI(PP) as the reference level for the analog input signal. The pass band is 0 to 3600 Hz for an 8-KHz sample rate. This pass band scales linearly with the sample rate. (2) The filter characteristics are specified by design and are not tested in production. In places where more than one value is specified, the first value is with the High Pass Filter on and the second value is with the HPF off With FIR Filter, FS = 8 KHz (1) TEST PARAMETER MIN TYP MAX MIN TYP MAX UNIT CONDITIONS Line In Driver AIC20/21/24/25 AIC20k/24k VI = -3 dB 81 84 70 84 SNR Signal-to-noise ratio VI = -9 dB 73 76 76 VI = -3 dB 83 90 70 90 THD Total harmonic distortion dB VI = -9 dB 81 88 88 VI = -3 dB 80 83 83 Signal-to-harmonic THD+N distortion + noise VI = -9 dB 73 76 76 (1) The test condition is a differential 1020-Hz input signal with an 8-KHz conversion rate. Input and output common mode is 1.35 V. 6 |
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