RC2798G Fairchild Semiconductor, RC2798G Datasheet
RC2798G
Specifications of RC2798G
Related parts for RC2798G
RC2798G Summary of contents
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... C2 B1 PRELIMINARY INFORMATION describes products that are not in full production at the time of printing. Specifications are based on design goals and limited characterization. They may change without notice. Contact Fairchild Semiconductor for current information. Description The RC2798 is an integrated solution for the down- conversion of QAM IF signals in the front-end design of cable modem and set-top receivers ...
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RC2798 Absolute Maximum Ratings Parameter Video Amplifier 5V Operation Vcc_Mix Supply voltage 1 (for AGC amplifier, oscillator, and mixer) VccVamp Supply voltage 2 ( for video amplifier) P Power dissipation D T Operation temperature range A Tstg Storage temperature range ...
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PRODUCT SPECIFICATION Electrical Characteristics Parameter AGC Amplifier, Oscillator, and Mixer Blocks (Vcc = 5V) Icc1 Supply current input frequency range RF f OSC frequency range OSC f IF output frequency range IF CG Maximum conversion gain MAX ...
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RC2798 Typical Characteristics -10 0 5.00 E-01 4.50E-02 4.00E-02 3.50E-02 3.00E-02 2.50E-02 2.00E-02 1.50E-02 1.00E-02 5.00E-03 0.00E+00 -5.00E-03 0 4.00 8.00 1.2 1.6 E-01 E- 1.5 2 2.5 3 3.5 ...
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PRODUCT SPECIFICATION 10nF AGC_IN1 RF input AGC_IN2 51 10nF 10K VAGC (1.0–4.0V) 10K 0.22µF Vcc_Mix(+5V) FB VCC MIX + 0.1µF + 0.1µF 10µF 10µF OSC_OUT 10nF Oscillator O/P 10nF Ext. LO I/P 10nF 51 Figure 3. Measurement Circuit 1—AGC + ...
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RC2798 AGC_IN1 1 AGC_IN2 2 VAGC 3 VCC MIX 4 OSC_OUT 5 GND Figure 4. Measurement Circuit 2—Video Amplifier Block 6 RC2798 GND 20 MIX_OUT2 19 AGC + MIX MIX_OUT1 ...
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PRODUCT SPECIFICATION Applications Discussion GND Figure 5. Application Circuit RC2798 7 ...
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RC2798 Crystal Oscillator Implementation + .1µF + .1µF 10µF 10µF Oscillator O/P 220pF XTL 38.886 MHz Fundamental mode Series Resonant Figure 6. Fundamental Mode—Series Resonant XTL + .1µF .1µF 10µF 10µF Oscillator O/P 220pF XTL ...
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PRODUCT SPECIFICATION Overtone Mode—Series Resonant XTL desired to operate a XTL at non-fundamental or overtone frequency coupled parallel resonant network should be connected to feedback input pin, B1. The typical impedance looking into B1 with ...
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RC2798 + .1µF 10µF Oscillator O/P XTL 38.886 MHz Parallel Resonant Cc: 15pF for Fundamental 2pF for Overtone Figure 9. Fundamental or Overtone Mode with Improved Duty Cycle—Parallel Resonant XTL 10 RC2798 AGC_IN1 1 AGC_IN2 2 VAGC 3 ...
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PRODUCT SPECIFICATION Package Dimensions 20-pin TSSOP package Inches Millimeters Symbol Min. Max. Min. A — .047 — A1 .002 .006 0.05 A2 .031 .041 0.80 B .007 0.19 .012 C .004 .008 0.09 D .250 .257 6.40 E .240 .264 ...
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... RC2798 Ordering Information Product Number Package RC2798G 20 pin TSSOP LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems ...