LT5515 LINER [Linear Technology], LT5515 Datasheet
LT5515
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LT5515 Summary of contents
Page 1
... The LT5515 incorporates balanced I and Q mixers, LO buffer amplifiers and a precision, high frequency quadra- ture generator receiver, the high linearity of the LT5515 provides excellent spur-free dynamic range, even with fixed gain front end amplification. This direct conversion receiver can eliminate the need for intermediate frequency (IF) signal processing, as well as the corresponding require- ments for image filtering and IF filtering ...
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... Consult LTC Marketing for parts specified with wider operating temperature ranges 25° 5V CONDITIONS Voltage Gain, Load Impedance = 1k 2-Tone, –10dBm/Tone, ∆f = 200kHz 2-Tone, –10dBm/Tone, ∆f = 200kHz (Note 4) (Note 4) Differential U W TOP VIEW ORDER PART NUMBER LT5515EUF – PART ...
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... ENABLE f = 1901MHz –5dBm LO LO – 40°C to 85°C Note 3: Specifications over the – 40°C to 85°C temperature range are assured by design, characterization and correlation with statistical process control. Note 4: Measured at P LT5515 MIN TYP MAX 4 5.25 95 125 160 20 120 650 1 ...
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... LT5515 W U TYPICAL PERFOR A CE CHARACTERISTICS (Test circuit optimized for 1.9GHz operation as shown in Figure 2) Supply Current vs Supply Voltage 170 150 T = 85°C A 130 T = 25°C A 110 T = – 40° 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) 5515 ¥ G01 I/Q Output Power, IM3 vs RF Input Power 1901MHz ...
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... Supply Current, IIP2 vs R1 150 130 SUPPLY CURRENT 110 f = 1901MHz –5dBm 25° IIP2 (Ω) LT5515 RF-LO Isolation vs RF Input Power 25° 2.4GHz 2.2GHz 1.9GHz 1.7GHz – – ...
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... LT5515 CTIO S GND (Pins 1, 4): Ground Pin. + – (Pins 2, 3): Differential RF Input Pins. These pins are internally biased to 1.54V. They must be driven with a differential signal. An external matching network is required for impedance transformation. V (Pins 12): Power Supply Pins. These pins CC should be decoupled using 1000pF and 0.1µ ...
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... AVX 04025C102JAT C3 0.1µF 0402 AVX 0402ZD104KAT C4 2.2µF 3216 AVX TPSA225M010R1800 L1 10nH 0402 Murata LQP15M R1 4.3Ω 0402 R2 100k 0402 R3 1k 0402 T1 1:4 Murata LDB311G9020C-452 T2 1:1 Murata LDB311G9005C-300 LT5515 + Q OUT – Q OUT T2 LDB311G9005C-300 (OPT 1nF 100pF C16 100pF ...
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... LT5515 U U APPLICATIO S I FOR ATIO The LT5515 is a direct I/Q demodulator targeting high linearity receiver applications, including wireless infra- structure. It consists amplifier, I/Q mixers, a quadrature LO carrier generator and bias circuitry. The RF signal is applied to the inputs of the RF amplifier and is then demodulated into I/Q baseband signals using quadrature LO signals. The quadrature LO signals are internally generated by precision 90° ...
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... LOAD LT5515 LDB311G9020C-452 10nH 3 4 – 1nF NOTE: NO CONNECTION REQUIRED ACCORDING TO BALUN TRANSFORMER MANUFACTURER LT5515 + – lead (or OUT OUT + – 90°. OUT OUT , assuming LOAD – 0.85V. The I 1.54V 5515 F05 5515fa 9 ...
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... LT5515 U U APPLICATIO S I FOR ATIO LDB311G9010C-440 12nH 3 4 – 1nF NOTE: NO CONNECTION REQUIRED ACCORDING TO BALUN TRANSFORMER MANUFACTURER Figure 6. LO Input Equivalent Circuit with External Matching at 1.9GHz CC 60Ω 60Ω 60Ω 60Ω 5pF 5pF Figure 7 ...
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... UF Package 16-Lead Plastic QFN (4mm × 4mm) (Reference LTC DWG # 05-08-1692) 0.72 ±0.05 PACKAGE OUTLINE 0.30 ±0.05 0.65 BSC 0.75 ± 0.05 2.15 ± 0.10 (4-SIDES) 0.200 REF 0.00 – 0.05 LT5515 BOTTOM VIEW—EXPOSED PAD PIN 1 NOTCH R = 0.20 TYP OR 0.35 × 45° CHAMFER R = 0.115 TYP 15 16 0.55 ± 0. (UF16) QFN 1004 0.30 ± ...
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... LT5515 RELATED PARTS PART NUMBER DESCRIPTION RF Power Controllers LTC1757A RF Power Controller LTC1758 RF Power Controller LTC1957 RF Power Controller LTC4400 SOT- Controller LTC4401 SOT- Controller LTC4403 RF Power Controller for EDGE/TDMA LT5500 RF Front End LT5502 400MHz Quadrature Demodulator with RSSI LT5503 1.2GHz to 2.7GHz Direct IQ Modulator and ...