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AD1985JST Datasheet(PDF) 6 Page - Analog Devices |
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AD1985JST Datasheet(HTML) 6 Page - Analog Devices |
6 / 48 page AD1985 Rev. A | Page 6 of 48 ANALOG OUTPUT Table 9. Parameter Min Typ Max Unit FULL-SCALE OUTPUT VOLTAGE: LINE OUT, MONO OUT, CENTER, LFE 1 V rms 2.83 V p-p Output Impedance1 300 500 Ω External Load Impedance1 2 10 kΩ Output Capacitance1 15 pF External Load Capacitance 1000 pF FULL-SCALE OUTPUT VOLTAGE: HP_OUT 1 V rms 2.83 V p-p External Load Capacitance1 1000 pF External Load Impedance1 32 Ω VREF 2.1 2.25 2.4 V VREFOUT (VREFH, VREFD = 00 in REGISTER 0x76) 2.25 V VREFOUT (VREFH, VREFD = 10) 3.70 V VREFOUT (VREFH, VREFD = 11) 0.0 V VREFOUT CURRENT DRIVE 5 mA MUTE CLICK (MUTED OUTPUT UNMUTED MIDSCALE DAC OUTPUT) ±5 mV Note that setting VREFOUT to 0 V reduces crosstalk when Center/LFE is sharing the MIC jack. The Center/LFE crosstalk should be better than −60 dB at 100 Hz when sharing with a stereo microphone application circuit. STATIC DIGITAL SPECIFICATIONS Table 10. Parameter Min Typ Max Unit DIGITAL INPUTS/OUTPUTS High Level Input Voltage (VIH) 0.65 × DVDD V Low Level Input Voltage (VIL) 0.35 × DVDD V High Level Output Voltage (VOH), IOH = 2 mA 0.9 × DVDD V Low Level Output Voltage (VOL), IOL = 2 mA 0.1 × DVDD V INPUT LEAKAGE CURRENT –10 +10 µA OUTPUT LEAKAGE CURRENT –10 +10 µA INPUT/OUTPUT PIN CAPACITANCE 7.5 pF POWER SUPPLY Table 11. Parameter Min Typ Max Unit POWER SUPPLY RANGE—ANALOG (AVDD) 4.5 5.5 V POWER SUPPLY RANGE—DIGITAL (DVDD) 2.97 3.63 V POWER DISSIPATION—5 V/3.3 V 465 mW POWER SUPPLY REJECTION (100 mV p-p SIGNAL @ 1 kHz)1 40 dB 1 Guaranteed, not tested. |
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