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ADAU1772BCPZ-R7 数据表(PDF) 8 Page - Analog Devices |
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ADAU1772BCPZ-R7 数据表(HTML) 8 Page - Analog Devices |
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8 / 117 page  Data Sheet ADAU1772 Rev. C | Page 7 of 116 Parameter Test Conditions/Comments Min Typ Max Unit Dynamic Range1 Headphone mode, 20 Hz to 20 kHz, −60 dB input With A-Weighted Filter (RMS) AVDD = 1.8 V 104 dB AVDD = 3.3 V 107 dB With Flat 20 Hz to 20 kHz Filter AVDD = 1.8 V 102 dB AVDD = 3.3 V 104 dB Signal-to-Noise Ratio2 Headphone mode, 20 Hz to 20 kHz With A-Weighted Filter (RMS) AVDD = 1.8 V 105 dB AVDD = 3.3 V 108 dB With Flat 20 Hz to 20 kHz Filter AVDD = 1.8 V 103 dB AVDD = 3.3 V 106 dB Interchannel Gain Mismatch Headphone mode 75 mdB Total Harmonic Distortion + Noise Headphone mode 32 Ω Load −1 dBFS, AVDD = 1.8 V, PO = 27 mW −75 dB −1 dBFS, AVDD = 3.3 V, PO = 90 mW −83 dB 24 Ω Load −2 dBFS, AVDD = 1.8 V, PO = 28 mW −75 dB −1 dBFS, AVDD = 3.3 V, PO = 118 mW −77 dB 16 Ω Load −3 dBFS, AVDD = 1.8 V, PO = 33 mW −75 dB −1 dBFS, AVDD = 3.3 V, PO = 175 mW −83 dB Headphone Output Power 32 Ω Load AVDD = 1.8 V, <0.1% THD + N 32.5 mW AVDD = 3.3 V, <0.1% THD + N 111.8 mW 24 Ω Load AVDD = 1.8 V, <0.1% THD + N 37.6 mW AVDD = 3.3 V, <0.1% THD + N 148.3 mW 16 Ω Load AVDD = 1.8 V, <0.1% THD + N 41.5 mW AVDD = 3.3 V, <0.1% THD + N 189.2 mW Gain Error Headphone mode ±0.25 % Offset Error ±0.1 mV Interchannel Isolation 1 kHz, 0 dBFS input signal 100 dB Power Supply Rejection Ratio CM capacitor = 22 μF 100 mV p-p at 1 kHz 73 dB CM REFERENCE CM pin Common-Mode Reference Output AVDD/2 V Common-Mode Source Impedance 5 kΩ REGULATOR Line Regulation 1 mV/V Load Regulation 6 mV/mA 1 Dynamic range is the ratio of the sum of noise and harmonic power in the band of interest with a −60 dBFS signal present to the full-scale power level in decibels . 2 SNR is the ratio of the sum of all noise power in the band of interest with no signal present to the full-scale power level in decibels. 3 These specifications are with 4.7 µF decoupling and 5.0 kΩ load on pin. CRYSTAL AMPLIFIER SPECIFICATIONS Supply voltages AVDD = IOVDD = 1.8 V, DVDD = 1.1 V, unless otherwise noted. Table 2. Parameter Test Conditions/Comments Min Typ Max Unit Jitter 270 500 ps Frequency Range 8 27 MHz Load Capacitance 20 pF |
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