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LTC1758-2 Datasheet(PDF) 3 Page - Linear Technology |
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LTC1758-2 Datasheet(HTML) 3 Page - Linear Technology |
3 / 16 page 3 LTC1758-1/LTC1758-2 ELECTRICAL C C HARA TERISTICS The q denotes specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, SHDN = TXEN = VIN, unless otherwise noted. PARAMETER CONDITIONS MIN TYP MAX UNITS SHDN, TXEN, BSEL Input Current SHDN, TXEN or BSEL = 3.6V q 10 25 50 µA PCTL Input Voltage Control Range VIN = 3V to 6V, RLOAD = 400Ω q 02 V PCTL Input Voltage Range VIN = 3V, RLOAD = 400Ω (Note 7) q 2.4 V PCTL Input Resistance SHDN = LO, TXEN = LO q 50 90 140 k Ω PCTL Input Filter 350 kHz Autozero Range VIN = 2.7V, RLOAD = 400Ω (Note 4) q 400 mV Autozero Settling Time (tS)tS, Shutdown to Enable (Autozero), VIN = 2.7V (Note 10) q 50 µs RF Input Frequency Range (Note 6) q 850 2000 MHz RF Input Power Range 900MHz (Note 6) – 26 16 dBm 1800MHz (Note 6) –24 16 dBm RF Input Impedance Referenced to VIN, SHDN = LO, TXEN = LO q 100 200 350 Ω BSEL Timing t1, Setup Time Prior to TXEN Asserted High 200 ns t2, Hold Time After TXEN is Asserted Low 200 ns Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: The LTC1758-1 and LTC1758-2 are guaranteed to meet performance specifications from 0 °C to 70°C. Specifications over the –30 °C to 85°C operating temperature range are assured by design, characterization and correlation with statistical process controls. Note 3: Slew rate is measured open loop. The slew time at VPCA or VPCB is measured between 1V and 2V. Note 4: Maximum DAC zero-scale offset voltage that can be applied to PCTL. Note 5: This is the time from TXEN rising edge 50% switch point to VPCA/B = 1V. Note 6: Guaranteed by design. This parameter is not production tested. Note 7: Includes maximum DAC offset voltage and maximum control voltage. Note 8: Bandwidth is calculated using the 10% to 90% rise time: BW = 0.35/rise time Note 9: Measured 1 µs after TXEN = HI. Note 10: 50% switch point, SHDN HI = VIN, TXEN HI = VIN. TYPICAL PERFOR A CE CHARACTERISTICS RF Detector Characteristics at 900MHz RF Detector Characteristics at 1800MHz RF INPUT POWER (dBm) 10 100 1000 10000 –26 –14 –8 –2 4 10 1 –20 16 1758 G01 VIN = 3V TO 4.4V –30 °C 75 °C 25 °C RF INPUT POWER (dBm) 10 100 1000 10000 –24 –16 –12 –8 –4 0 4 8 1 –20 12 16 1758 G02 VIN = 3V TO 4.4V –30 °C 75 °C 25 °C |
Similar Part No. - LTC1758-2_15 |
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Similar Description - LTC1758-2_15 |
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