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Architecture and circuit design techniques for VLSI implementation of a single-chip QAM modulator with continuously-variable symbol rates and digitally fle... KH Cho - University of California, Los Angeles. 被引量: 0发表: 1999年 Dual port modulator comprising a frequency synthesiser (), a first ...
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1 2 3 Description Reference pin Anode Cathode Publication date: December 2001 SFF00001CEB 1 AN1431T, AN1431M I Absolute Maximum Ratings at Ta = 25°C Parameter Symbol Rating Supply voltage Supply current Power dissipation Reference input current Operating ambient temperature AN1431T AN1431M VCC ...
SYMBOL PARAMETER VIN VOUT FB UVLO EN RT/CLK SS/TRK PG COMP INTSS INTRRT RCOMP CCOMP VSENSE+ SW Input voltage Output voltage Feedback voltage Undervoltage lockout pin voltage Enable pin Voltage Enable source current RT/CLK pin voltage RT/CLK source current SS/TRK pin voltage SS/TRK pin ...
can be made with metals where one plate is fixed & the other one is movable. The range of capacitance that is provided by the capacitor can range from 10 pF to 500 picofarads. The symbol of this capacitor is shown below where the arrow symbol in the image shows that is a variable ...
(Each Channel) NHI-1540 TABLE I: Electrical Specifications Parameter POWER SUPPLY REQUIREMENTS VCC SUPPLY CURRENT +V SUPPLY CURRENT TXVOC SUPPLY CURRENT POWER DISSIPATION OPERATING TEMPERATURES THERMAL IMPEDANCE Condition Symbol Vcc=5.0V, +V=12.0V, total hybrid Vcc=5.0V, +V=12.0V, each channel ...
HFC0300 is a variable off-time controller that uses a fixed-peak–current technique to decrease its frequency as the load lightens. As a result, it offers excellent efficiency at light-load while optimizing the efficiency under other load conditions.
A 1900 MHz W-CDMA RF signal with a 3.84 MHz symbol rate was used. The local oscillator (LO) is set at 1900 MHz to obtain a zero IF baseband signal. The gain of the AD8366 is set to maximum gain (~20.25 dB). Figure 52 shows the SNR vs. the input power of the cascaded system...
Symbol #Level (Voltage)(Outputs)Output 0−V00000 1−V/310001 2+V/311010 3+V11111 To provide a more efficient representation of the detected symbol values of the inbound wave for 4-PAM signaling, an M-bit to P-bit, where M<P, thermometer encoder350may be used as coupled to the ...