lt5500 Linear Technology Corporation, lt5500 Datasheet
lt5500
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lt5500 Summary of contents
Page 1
... All other trademarks are the property of their respective owners. GAIN SELECT 100pF 2V 100pF × LNA_OUT C4 – INTERSTAGE C17 + LO FILTER LO INPUT L9 MIX_IN C23 – IF 5500 F01 LT5500 1.8GHz to 2.7GHz Receiver Front End U LNA Gain (High Gain Mode) and Mixer Conversion Gain 14 2.5GHz 25°C 13.9 A 13.8 13.7 13.6 13.5 13.4 13.3 13.2 13.1 13.0 1 ...
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... Terminated 50Ω Source No External Matching With External Matching Two Tone Test, ∆f = 2MHz Two Tone Test, ∆f = 2MHz Terminated 50Ω Source Two Tone Test, ∆f = 2MHz U W ORDER PART TOP VIEW NUMBER GND LT5500EGN 22 LNA_OUT GND – ...
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... GS = 1.35V (Note 6) Note 4: Specifications over the –40°C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 5: When EN ≤ 0.3V, enable current is <10µA. Note 6: When GS ≤ 0.3V, gain select current is <10µA. LT5500 = 3V DC, CC MIN TYP MAX UNITS 0 ...
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... LT5500 W U TYPICAL PERFOR A CE CHARACTERISTICS LNA Gain vs Supply Voltage and Temperature (High Gain Mode) 20 –40°C, 1.8GHz 19 25°C, 1.8GHz 18 85°C, 1.8GHz 25°C, 2.5GHz –40°C, 2.5GHz 14 85°C, 2.5GHz 13 12 3.5 4 1.5 2 2.5 3 4.5 5 5.5 SUPPLY VOLTAGE (V) 5500 G01 ...
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... I vs Supply Voltage CC (High Gain Mode 85° 25° –40°C 15 3.5 1.5 2.5 4.5 5.5 V (V) CC 5500 G17 LT5500 Mixer SSB Noise Figure vs LO Power 280MHz 25° 2.5GHz 10 9 1.8GHz –5 –10 –15 –20 – ...
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... Power Supply Pins. See Figure 6 CC for recommended power supply bypassing. LNA_IN (Pin 3): LNA Input Pin. The LT5500 has better than 10dB input return loss from 1.8GHz to 2.7GHz. This pin is internally biased to 0.8V and must be AC coupled. GND (Pin 4, 11, 14, 16, 20, 23): Ground Pins. These pins should be connected directly to ground ...
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... U U APPLICATIONS INFORMATION The LT5500 consists of an LNA, a Mixer buffer and the associated bias circuitry. The chip is designed to be compatible with IEEE802.11b wireless local area network (WLAN), MMDS and other wireless applications. The LNA and Mixer are designed to operate over an input frequency range of 1 ...
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... V CC 100pF 100pF LNA_OUT RF OUT C4 – C17 + LO LO INPUT L9 MIX_IN MIXER RF INPUT C23 – IF *REFER TO FIGURE 6 FOR POWER SUPPLY PINS BYPASSING RECOMMENDATION 5500 F03 TX1 4:1 19 – INPUT LT5500 5500 F05 LO INPUT 2.22GHz L3 3.3nH TX1 TOKO-BF4 5500f ...
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... U U APPLICATIONS INFORMATION Modes of Operation The LT5500 has three operating modes: 1. Shutdown 2. LNA High Gain 3. LNA Low Gain For shutdown, the EN pin and the GS pin must be at logic Low. Logic Low is defined as a control voltage below 0.3V. LNA High gain mode requires that both EN and GS pins be at logic High ...
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... R4 0Ω J2 LNA_IN C6 1µF C9 100pF L5 4.7nH CC2 5.1k SW1 C24 5. 100pF C2 C25 100pF CC1 LT5500 GND LNA_IN LNA_OUT 4 21 GND 100pF LNA_GND GND C4 220pF 6 19 – LNA_GND LNA_GND LNA_GND ...
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... However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights Figure 8. Component Side Layout of Evaluation Board Figure 10. Routing (Layer 3) Layout of Evaluation Board Figure 12. Bottom Side Layout of Evaluation Board LT5500 5500f 11 ...
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... LT5500 PACKAGE DESCRIPTION .254 MIN .0165 ± .0015 RECOMMENDED SOLDER PAD LAYOUT .007 – .0098 (0.178 – 0.249) .016 – .050 (0.406 – 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) 3. DRAWING NOT TO SCALE *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" ...