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LTC1566-1 Datasheet(PDF) 1 Page - Linear Technology |
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LTC1566-1 Datasheet(HTML) 1 Page - Linear Technology |
1 / 8 page LTC1566-1 1 15661fa APPLICATIO S FEATURES DESCRIPTIO TYPICAL APPLICATIO The LTC ®1566-1 is a 7th order continuous time lowpass filter with 12dB of passband gain. The selectivity, linearity and dynamic range makes the LTC1566-1 suitable for filtering in data communications or data acquisition systems. The filter attenuation is 40dB at 1.5 × fCUTOFF and at least 60dB for frequencies above 10MHz. The LTC1566-1 has an input referred noise of 62µVRMS in a 2MHz bandwidth. In receiver applications where the signal levels are small, the filter features 71dB of spurious free dynamic range. With 5% accuracy of the cutoff frequency, the LTC1566-1 can be used in applications requiring pairs of matched filters, such as transceiver I and Q channels. The differential inputs and outputs provide a simple inter- face for wireless systems. The high impedance inputs are easily coupled to differential demodulators or D/A con- verters. The output DC common mode voltage and output DC offset voltage are adjustable so the signal path can be optimized for driving an A/D converter or differential modulator. Other cutoff frequencies and single-ended I/O can be provided upon request. Please contact LTC Marketing. ■ WCDMA Basestations ■ Communication Filters ■ Antialiasing Filters ■ Smoothing or Reconstruction Filters ■ Matched Filter Pairs ■ Replacement for LC Filters , LTC and LT are registered trademarks of Linear Technology Corporation. ■ 7th Order, 2.3MHz Lowpass Filter in an SO-8 ■ 62µVRMS Input Referred Noise ■ Operates on a Single 5V or a ±5V Supply ■ Differential Inputs and Outputs ■ Low Offset (3mV typical, 10mVMAX) ■ Adjustable Output Common Mode Voltage ■ 40dB Attenuation at 1.5 × fCUTOFF ■ Requires No External Components Low Noise 2.3MHz Continuous Time Lowpass Filter Frequency Response Single 5V Supply, Differential 2.3MHz Lowpass Filter LTC1566-1 1 2 3 4 OUT + OUT – V + VODC IN + IN – GND V – 8 7 6 5 VIN VOUT + – + – 5V 10k 10k 0.1µF 0.1µF 1566-1 TA01 FREQUENCY (MHz) 0.1 20 10 0 –10 –20 –30 –40 –50 –60 –70 –80 1000 900 800 700 600 500 400 300 200 100 0 1.0 10 100 1566-1 G01 DELAY GAIN |
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