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AD6459 데이터시트(PDF) 2 Page - Analog Devices |
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AD6459 데이터시트(HTML) 2 Page - Analog Devices |
2 / 12 page –2– REV. 0 AD6459–SPECIFICATIONS Model AD6459ARS Parameter Conditions Min Typ Max Units DYNAMIC PERFORMANCE MIXER Maximum RF and LO Frequency 500 MHz AGC Conversion Gain Variation 0.2 V < VGAIN < 2.25 V –3 to +16 dB Input 1 dB Compression Point @ VGAIN = 0.2 V –11 dBm Input Third-Order Intercept @ VGAIN = 0.2 V 0 dBm SSB Noise Figure 1 @ ZS = 50 Ω, FRF = 240 MHz, FLO = 229.3 MHz at –16 dBm 10 dB Mixer Output Bandwidth at MXOP @ –3 dB 80 MHz IF AMPLIFIERS AGC Gain Variation 0.2 V < VGAIN <2.25 V –13 to +46 dB Input Referred Noise AC Short Circuit Input 3 nV/ √Hz Input Resistance @ VGAIN = 0.2 V 5 k Ω Bandwidth @ –3 dB 50 MHz I AND Q DEMODULATORS Demodulation Gain 17 dB Output Voltage Range Differential, IRXP, IRXN, QRXP, QRXN 0.3 VP – 0.2 V Output Voltage Common-Mode Level (Not Power Supply Dependent) 1.5 V Output Offset Voltage Differential, VGAIN = GREF –150 150 mV Error in Quadrature Differential from I to Q, IF = 13 MHz 1.5 3.5 Degree Amplitude Match I to Q 0.25 dB I/Q Output Bandwidth CLOAD = 10 pF 2 MHz Output Resistance Each Pin 4.7 k Ω GAIN CONTROL Total Gain Control Range Mixer + IF + Demod, 0.2 V < VGAIN <2.25 V 76 dB Control Voltage Range at GAIN 0.2 2.4 V Gain Scaling 23 27 32 mV/dB Gain Law Conformance ±0.5 dB Bias Current at GREF 0.5 µA Input Resistance at GAIN 20 k Ω PLL Frequency Range 5 50 MHz Phase Noise 0.5 Degree rms Acquisition Time IF = 19.5 MHz, Using Suggested Filter 80 µs Input Drive Level (FREF) 100 VPOS mV POWER-DOWN INTERFACE Logical Threshold Power Up on Logical High 1.5 V Input Current for Logical High 75 µA Turn-On Response Time To Fully Meet Specifications (PLL Lock) 80 µs Turn-Off Response time To 200 µA Supply Current 1 µs Standby Current 2 µA POWER SUPPLY Supply Range 2.7 5.5 V Supply Current @ VGAIN = 1.2 V 8 mA OPERATING TEMPERATURE TMIN to TMAX Operation to 3.3 V Minimum Supply Voltage –40 +85 °C Operation to 2.7 V Minimum Supply Voltage –25 +85 °C NOTES 1Including IF noise and using suggested filter, at V GAIN = 0.2 V. Specifications subject to change without notice. (@ TA = +25 C, VP = 3.0 V, GREF = 1.2 V, unless otherwise noted) |
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