S12301

The S12301 is designed as one kind of 123.69MHz SAW filter with 2.46MHz bandwidth. The specifications of this device can be summarized as:(1)Center Frequency: 123.61 to 123.77 MHz;(2)Insertion Loss: 21 dB to 22.5 dB;(3)3dB Bandwidth: 2.46 MHz to 2.49 MHz;(4)30dB Bandwidth: 3.18 MHz to 3.26 MHz;(5)40dB Bandwidth: 3.28 MHz to 3.56 MHz;(6)50dB Bandwidth: 3.4 MHz to 3.86 MHz;(7)Passband Variation: 0.5 to 1 dB;(8)Absolute Delay: 3.13 usec to 4 usec;(9)Group Delay Variation(f0±984kHz): 120 usec to 300 usec;(10)Phase Linearity(f0±984kHz): 4 degree;(11)Ultimate Rejection(out of f0±2MHz): 44 to 47 dB;(12)Subatrate Material of the S12301: quartz;(13)Ambient Temperature: 25 °C.

And you should notice that:(1)All specifications of the S12301 are based on the test circuit shown; (2)In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over temperature; (3)Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances; (4)This is the optimum impedance in order to achieve the performance show. If you want to know more information about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .