ltc5583 Linear Technology Corporation, ltc5583 Datasheet
ltc5583
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ltc5583 Summary of contents
Page 1
... Each AC signal’s power in decibel-scaled value is precisely converted voltage on a linear scale, independent of the crest factor of the input signal waveforms. The LTC5583 is suitable for precision power measurement and level control for a variety of RF standards, including LTE, EDGE, W-CDMA, CDMA2000, TD-SCDMA, and WiMAX. ...
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... ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL LTC5583IUF#PBF LTC5583IUF#TRPBF Consult LTC Marketing for parts specified with wider operating temperature ranges. Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: For more information on tape and reel specifications, go to: ...
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... Frequency Separation = 10MHz l Frequency Separation = 0Hz Frequency Separation = 1MHz Frequency Separation = 10MHz l Frequency Separation = 0Hz Frequency Separation = 1MHz Frequency Separation = 10MHz Frequency Separation = 0Hz Frequency Separation = 1MHz Frequency Separation = 10MHz LTC5583 MIN TYP MAX UNITS 40 to 6000 MHz 400//0.5 Ω// – ...
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... LTC5583 ELECTRICAL CHARACTERISTICS temperature range, –40°C to 85°C, otherwise specifications are at T Figures 1 and 2 (Note 2). PARAMETER CONDITIONS f = 2700MHz (Single-Ended Inputs) RF Linear Dynamic Range CW, 50Ω, ±1dB Linearity Error (Note 5) RF Input Power Range CW, 50Ω, ±1dB Linearity Error (Note 5) Output Slope ...
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... Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LTC5583 is guaranteed functional over the temperature range from –40°C to 85°C. Note 3: Logarithmic Intercept is an extrapolated input power level from the best-fit log-linear straight line, where the output voltage is 0V ...
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... LTC5583 TYPICAL PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V 25°C, unless otherwise noted. Test circuits shown in Figures 1 and Output Voltage vs RF Input Power CW Input at Various Frequencies 2.6 450MHz, CHA 880MHz, CHA 2.2 2140MHz, CHA 2700MHz, CHA 3600MHz, CHA 1.8 5800MHz, CHA 1.4 1.0 0.6 0.2 –70 –60 –50 –40 –30 ...
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... CW Inputs, Single-Ended Drive 0.09 2.5 0.06 2.0 0.03 1.5 0 1.0 –0.03 0.5 –0.06 85°C 25°C –40°C 0 –0.09 –45 –15 –5 5 5583 G11 LTC5583 2.5 = 1.2V, INV = 0V OS 2.0 SWEEP CH B INPUT HOLD CH A INPUT = –26dBm 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 SWEEP CH A INPUT 85°C HOLD CH B 25°C –2.0 INPUT = –26dBm –40°C –2.5 – ...
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... LTC5583 TYPICAL PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V 25°C, unless otherwise noted. For temperature compensation of logarithmic intercept at 2140MHz set R = Open 9.76kΩ Output Voltage and Linearity Error vs RF Input Power, 2140MHz CW Inputs, Single-Ended Drive 2.5 2.0 1.5 1.0 0.5 0 –65 –55 –45 –35 –25 ...
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... G23 LTC5583 2 1.2V, INV = 0V OS 2.0 SWEEP CH B INPUT HOLD CH A INPUT = –25dBm 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 SWEEP CH A INPUT 85°C HOLD CH B –2.0 25°C INPUT = –25dBm –40°C –2.5 –45 –35 –25 – ...
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... LTC5583 TYPICAL PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V 25°C, unless otherwise noted. For temperature compensation of logarithmic intercept at 3600MHz set R = Open 10.2kΩ Output Voltage and Linearity Error vs RF Input Power, 3600MHz CW Inputs, Differential Drive 2.5 2.0 1.5 1.0 85° 85° 25° 0.5 25° – ...
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... G35 LTC5583 2 1.2V, INV = 0V OS 2.0 SWEEP CH B INPUT HOLD CH A INPUT = –20dBm 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 SWEEP CH A INPUT 85°C HOLD CH B –2.0 25°C INPUT = –20dBm –40°C –2.5 –45 – ...
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... LTC5583 TYPICAL PERFORMANCE CHARACTERISTICS V = 3.3V 3.3V 25°C, unless otherwise noted. Test circuits shown in Figures 1 and Input A to Input B Isolation, Single-Ended Inputs –40 –50 –60 –70 –80 –90 0 0.5 1 1.5 FREQUENCY (GHz) Output Response to RF Burst Input, 100MHz CW Input 8.2nF FLTRA FLTRB 3 ...
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... CREST FACTOR = 6 1.90 OSCILLOSCOPE 85°C WAVEFORM 1.85 25°C ACQUIRED IN –40°C AVERAGE MODE 1. 5583 G47 LTC5583 Envelope Detector Peak Output Voltage vs Crest Factor, 2140MHz Input AVERAGE INPUT POWER –10dBm –20dBm –30dBm –40dBm PEAK TO AVERAGE POWER RATIO ...
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... LTC5583 PIN FUNCTIONS DECA, DECB (Pins 1, 6): Input Common Mode Decou- pling Pins for Channel A and Channel B. These pins are internally biased to 1.6V. The input impedance is 1.75kΩ in parallel with a 40pF internal shunt capacitor to ground. The impedance between DECA and IN The pin can be connected to the center tap of an external balun capacitor to ground ...
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... R 20pF 1nF RT1 RT2 INPUT RETURN LOSS 11.5kΩ 1.13kΩ 21dB 11.5kΩ 1.13kΩ 14dB 9.76kΩ 1.10kΩ 14dB 8.87kΩ 1.21kΩ 14dB LTC5583 100pF C FLTRA V CC 100nF 1nF FLTA ENVA V CCN 1nF 18 V OUTA R T1 ...
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... Open 0 TDK_HHM1727D1 Open 0 TDK_HHM1733B1 Open 0 C FLTRA R1 100pF 100nF 1Ω 1nF 1μ RP1 FLTA ENVA V CCN 1nF 18 LTC5583 V OUTA RT1 16 V ODF 1nF RT2 OUTB 1nF RP2 FLTB ENVB INV ...
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... TEST CIRCUITS Figure 3. Top Side of Evaluation Board for Single-Ended Input Configuration LTC5583 5583f 17 ...
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... The differential impedance is about 400Ω. These pins should be DC blocked when connected to ground or other matching components. The LTC5583 can be driven in a single-ended configuration. The single-ended input impedance vs frequency is given in Table 1. Figure 4 shows the simplified circuit of this single-ended configuration for each channel. The DECA pin can be either left floating or AC-coupled to ground via an external capacitor ...
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... Figure 4. Single-Ended Input Configuration LTC5583 + 200Ω DECA 1 R1 62Ω 200Ω – 20pF 1nF Figure 5. Differential Input Configuration MATCHING NETWORK CS1 RF INPUT LM CS1 5583 F06 Figure 6. Single-Ended to Differential Conversion LTC5583 40pF 5583 F04 40pF 5583 F05 + TO IN – 5583f 19 ...
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... LTC5583 APPLICATIONS INFORMATION The LTC5583 differential inputs can also be driven from a fully balanced source as shown in Figure 5. When the two input sources are single-ended, conversion to differential signals can improve channel-to-channel isolation to obtain accurate outputs from the dual channels, particularly at very high frequencies (i.e. 3.6GHz and above). This can be achieved using a 1:1 balun to match the chip’ ...
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... When the output is resistively terminated or open, the fastest output transient response is achieved when a large signal is applied to the RF input. The rise time of the LTC5583 is about 140ns and the fall time is 3.5μs, respectively, for full-scale pulsed RF input power with 8.2nF filtering capacitors. The speed of the output transient response is dictated mainly by the filtering capacitors (at least 8nF) at the FLTA and FLTB pins ...
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... A NOM LTC5583 V CC RP1 OR RP2 22.2k 5583 F08 Figure 8. Simplified Interface Circuit Schematic of the Polarity Pins RP1 and RP2 LTC5583 V CC RT1 OR 250k RT2 5583 F09 Figure 9. Simplified Interface Circuit Schematic of the Control Pins RT1 and RT2 is the reference NOM and R are not set to zero ...
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... F10 450 880 2140 2700 3600 200 5800 150 100 detV2 50 0 detV2 –50 –100 –150 –200 5583 F11 LTC5583 and R T1 values at various RF frequencies for the best T2 and R Values for Optimal Temperature (kΩ Open 11.5 0 Open 11.5 0 Open 9 ...
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... Enable simplified schematic of the EN pin interface is shown in Figure 13. The enable voltage necessary to turn on the LTC5583 is 2V. To disable or turn off the chip, set this volt- age below 0.3V important that the voltage applied to OA the EN pin should never exceed V Otherwise, the supply current may be sourced through the upper ESD protection diode connected at the EN pin ...
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... A supply voltage ramp time of greater than 1ms is recommended. In case this voltage ramp time is not controllable, a small (i.e. 1Ω) series resistor can be inserted between V to mitigate the problem and protect the IC. The R1 shown in Figures 1 and 2 serves this purpose. LTC5583 pin interface is shown OS is from 50mV to ODF – V ...
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... APPLICATIONS INFORMATION 26 LTC5583 15k V CC – + 5583 F14 Figure 14. Simplified Schematic of the V LTC5583 V CC 10k INV 5583 F15 Figure 15. Simplified Schematic of the INV Pin LTC5583 V CC 30k 5583 F16 Figure 16. Simplified Schematic of the V V ODF Pin ODF IF INV = LOW INV = HIGH ...
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... Plastic QFN (4mm × 4mm) (Reference LTC DWG # 05-08-1697) 0.70 ±0.05 PACKAGE OUTLINE 0.25 ±0.05 0.50 BSC 0.75 ± 0. 0.115 2.45 ± 0.10 (4-SIDES) 0.200 REF 0.00 – 0.05 LTC5583 BOTTOM VIEW—EXPOSED PAD PIN 1 NOTCH R = 0.20 TYP OR 0.35 × 45° CHAMFER TYP 23 24 0.40 ± 0. (UF24) QFN 0105 0.25 ± 0.05 ...
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... LTC5583 TYPICAL APPLICATION LTC5583 VSWR DIFFERENCE AMPLIFIER RELATED PARTS PART NUMBER DESCRIPTION Infrastructure LT5527 400MHz to 3.7GHz, 5V Downconverting Mixer LT5557 400MHz to 3.8GHz, 3.3V Downconverting Mixer LTC6400-X 300MHz Low Distortion IF Amp/ADC Driver LTC6401-X 140MHz Low Distortion IF Amp/ADC Driver LTC6416 2GHz 16-Bit ADC Buffer LTC6412 ...