QFQ1772S

The QFQ1772S is designed as one kind of antialiasing filter device that can be used for systems using sampling rates of four times the 4.43 MHz sub carrier. Sinx correction for a sampling frequency of 17.72 MHz is applied to the post filter passband.

The electrical characteristics of the QFQ1772S can be summarized as:(1)Filter Shape: Lowpass;(2)Passband Shape: Sinx/x;(3)Sampling Frequency: 17.72 MHz;(4)Insertion Loss at 100 kHz: < 3.0 dB;(5)End Of Passband: 6.19 MHz;(6)Passband Amplitude Ripple: < +/- 0.1 dB;(7)Start Of Stopband: 8.79 MHz;(8)Stopband Attenuation: > 40 dB;(9)Group Delay Ripple: < 15 ns;(10)Group Delay Bandwidth: 5.75 MHz;(11)Delay Time at 200 kHz: 245 ns nom;(12)Impedance: 75 ohms;(13)Temperature Range: 0 to 70 ;(14)Aqueous washable: No;(15)Package Type: DR00009B. If you want to know more information about the QFQ1772S, please download the datasheet in www.seekic.com or www.chinaicmart.com .