the NDR550 is a true one-port, surface-acoustic-wave ( saw ) resonator in a surface- mount ceramic qcc8c case. it provides reliable, fundamental-mode, quartz frequency stabilization i.e. in transmitters or local oscillators operating at 433.920 mhz. 1. package dimension (qcc8c) 2. marking 3. equivalent lc model and test circuit NDR550 laser marking 4. typical application circuits 1) low-power transmitter application 2) local oscillator application 5. typical frequency response 6. temperature characteristics www.datasheet.co.kr datasheet pdf - http://www..net/ www.datasheet.co.kr datasheet pdf - http://www..net/
www.datasheet.co.kr datasheet pdf - http://www..net/ www.datasheet.co.kr datasheet pdf - http://www..net/
7. performance 7-1. maximum ratings rating value unit cw rf power dissipation p 0 dbm dc voltage between terminals v dc 30 v storage temperature range t stg -40 to +85 operating temperature range t a -10 to +60 7-2. electronic characteristics characteristic sym minimum typical maximum unit maximum unit ? ? aximum u n it ? ? ist m unit ? ? t ? ? maxi unit ? ? xim u m un it ? ? bsolute fre que n cy f c 4 3 433.995 mhz ? ? 8 4 3.995 mhz ? ? 45 43 3 .99 5 ? 95 m hz ? ? 845 433.995 mhz ? ? 3.99 5 mhz ? ? 433.995 mhz ? ? toleranc e fro m 433 . 92 mhz 75 khz ? ? insertion loss il 1.4 1.8 db ? ? . 8 db ? ? oaded q q u 9,200 ? ? ? ? loaded q q l 1,200 ? ? q q l 00 ? ? ,20 0 ? ? ded 1,200 ? ? 1,2 00 ? ? d q l 1,200 ? ? turnover temperature t 0 15 45 ? ? u r e t 0 15 45 ? ? turnover frequency f 0 f c khz ? ? ? turnover frequency f 0 f c khz ? ? z ? ? frequency temperature coefficient ftc 0.032 ppm / 2 ? ? frequency aging absolute value during the first year ? fa ? 10 ppm / yr ? ? dc insu lation resistance between any two terminals 1.0 m ? ? ? motional resistance r m 15 23 ? ? ? motion al inductance l m 50.6419 ? h ? ? motional capacitance c m 2.6592 ff ? ? shunt static capacitance c 0 2.3 2.6 2.9 pf ? ? caution: e lectrostatic sensitive device. observe precautions for handling! nedi 2003. all r s reserved. the center frequency, f c , is measured at the minimum il point with the resonator in 1. the 50 test system . unless noted otherwise , case temperature t c = + 25 c 2 c . frequency aging the change in f c with time and is s 3. pecified at +65c or less. aging may exceed the specification for prolonged temperatures above +6 c. typically, aging is greatest 3. the first year after manufacture , decreasing in subsequent years . turnover temperature , t 0 , is the temperature of maximum (or turnover) frequency, f 0 . th 4. e nominal frequency at any case temperature, t c , may be calculated from: f = f 0 [1 - ftc (t 0 - t c ) 2 ]. this equivalent rlc model approximates resonator performance near the reson 5. ant frequency and is provided for reference only. the capacitance c 0 is the measured static ( nonmotional) capa www.datasheet.co.kr datasheet pdf - http://www..net/ www.datasheet.co.kr datasheet pdf - http://www..net/
|
