Active Filters BPF Tunable 4 - 8 GHz

The LTC1064-4 is an 8th order, clock sweepable Cauer lowpass switched capacitor filter. An external TTL or CMOS clock programs the value of the filters cutoff frequency. With Pin 10 at V+, the fCLK to fCUTOFF ratio is 50:1; the filter has a Cauer response and with compensation the passband ripple is ±0.1dB. The stopband attenuation is 80dB at 2 × fCUTOFF. Cutoff frequencies up to 100kHz can be achieved. With Pin 10 at V-, the fCLK to f-3dB ratio is 100:1, the filter has a transitional Butterworth-Cauer response with lower noise and lower delay nonlinearity than the Cauer response. The stopband attenuation at 2.5 × f-3dB is 92dB. Cutoff frequencies up to 50kHz can be achieved.The LTC1064-4 features low noise and low harmonic distortion even when input voltages up to 3VRMS are applied. The LTC1064-4 overall performance competes with equivalent multiple op amp active realizations. The LTC1064-4 is pin compatible with the LTC1064-1, LTC1064-2 and LTC1064-3.The LTC1064-4 is manufactured using our enhanced LTCMOSTM silicon gate process.Applications Antialiasing Filters Telecom Filters Sinewave Generators

Wideband VCO SMT w/Buffer Amplifier SMT, 6 - 12 GHz Features: Wide Tuning Bandwidth Pout: +1 dBm Low SSB Phase Noise: -95 dBc/Hz @100 kHz No External Resonator Needed Single Positive Supply: +5V @ 57 mA 24 Lead 4x4mm SMT Package: 16mm2

Wideband VCO SMT w/Buffer Amplifier SMT, 6 - 12 GHz Features: Wide Tuning Bandwidth Pout: +1 dBm Low SSB Phase Noise: -95 dBc/Hz @100 kHz No External Resonator Needed Single Positive Supply: +5V @ 57 mA 24 Lead 4x4mm SMT Package: 16mm2

VCO with Divide-by-4, 8.6 - 10.2 GHz Features: Dual Output: Fo = 8.6 - 10.2 GHz Fo/4 = 2.15 - 2.55 GHz Pout: +18 dBm Phase Noise: -100 dBc/Hz @ 100 kHz Typ. No External Resonator Needed 32 Lead 5×5 mm QFN Package: 25 mm2

VCO SMT with Fo/2, 7.3 - 8.2 GHz Features: Dual Output: Fo = 7.3 - 8.2 GHz Fo/2 = 3.65 - 4.1 GHz Phase Noise: -116 dBc/Hz @100 kHz Typ. Pout: +15 dBm No External Resonator Needed QFN Leadless SMT Package, 25 mm2

VCO SMT with Fo/2 & Divide-by-4, 8.45 - 9.55 GHz Features: Dual Output: Fo = 8.45 - 9.55 GHz Fo/2 = 4.225 - 4.775 GHz Phase Noise: -116 dBc/Hz @100 kHz Typ. Pout: +13 dBm No External Resonator Needed QFN Leadless SMT Package, 25 mm2

11.90 GHz to 18.30 GHz Quadband VCO Features: Set of 4 narrow-band VCOs with consistent sensitivity vs. frequency RF and tuning ports common to all 4 VCOs RF output operates from fundamental oscillators with no subharmonic oscillations Up to 8 dBm RF output power Power mute capability No external resonator required 40-lead, 6 mm × 6 mm LFCSP

VCO, W/BUFFER AMP, 3.55GHZ-3.9GHZ, QFN24;

Signal Conditioning