www.rfm.com e-mail: info@rfm.com page 1 of 3 ?2008 by rf monolithics, inc. RF1432C - 3/21/08 electrical characteristics characteristic sym notes minimum typical maximum units center frequency at 25c absolute frequency f c 1, 2 319.420 319.580 mhz tolerance from 319.500 mhz d f c 80 khz insertion loss il 1 1.8 2.8 db 3 db bandwidth bw 3 1, 2 500 600 800 khz rejection at f c - 21.4 mhz (image) 1 40 50 db at f c - 10.7 mhz (lo) 40 50 ultimate 80 temperature operating case temperature t c 3, 4 -40 +85 c turnover temperature t o 25 40 55 c turnover frequency f o f c mhz frequency temperature coefficent ftc 0.032 ppm/c 2 frequency aging absolute value during the first year ifai 5 10 ppm/yr impedance @ fc input z in = r in // c in z in 1 3.97k w // 4.37pf output z out = r out // c out z out 1 2.56k w // 4.27pf lid symbolization (in addition to lot and/or date codes) 621 // datecode ? ideal front-end filter for european wireless receivers ? low-loss, coupled-resonator quartz design ? simple external impedance matching ? complies with directive 2002/95/ec (rohs) the RF1432C is a low-loss, compact and economical surface-acoustic-wave (saw) filter designed to provide front-end selectivity in 319.500 mhz receivers. recevier designs using this filter include superhet with 10.7 mhz or 500 khz if, direct conversion and superregen. this coupled-resonator filter (crf) uses selective null placement to provide suppression, typically greater than 40 db, of the lo and image spurious responses of superhet receivers with 10.7 mhz if. rfms advanced saw design and fabrication technology is utilized to achieve high performance and very low loss with simple external impedance matching (not included). quartz construction provides excellent frequency stability over a wide temperature range. 319.500 mhz saw filter RF1432C caution: electrostatic sensitive device. observe precautions for handling. notes: 1. unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 w test system with vswr 1.2:1. the test fixture l and c are adjusted for minimum insertion loss at the filter center frequency, f c . note that insertion loss, bandwidth, and passband shape are dependent on the impedance matching component values and quality. 2. the frequency f c is defined as the midpoint between the 3db frequencies. 3. where noted, specifications apply over the entire specified operating temperature range. 4. the turnover temperature, t o , is the temperature of maximum (or turnover) frequency, f o . the nominal frequency at any case temperature, t c , may be calculated from: f = f o [1 - ftc (t o -t c ) 2 ]. 5. frequency aging is the change in fc with time and is specified at +65c or less. aging may exceed the specification for prolo nged temperatures above +65c. typically, aging is greatest the first year after manufacture, decreasing significantly in subsequent years. 6. the design, manufacturing process, and specifications of this device are subject to change without notice. 7. one or more of the following u.s. patents apply: 4,54,488, 4,616,197, and others pending. 8. all equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sa le. pb sm5050-8 case 5 x 5
www.rfm.com e-mail: info@rfm.com page 2 of 3 ?2008 by rf monolithics, inc. RF1432C - 3/21/08 ch1 s 11 1 u fs cor prm ch2 s 22 1 u fs center 319.500 000 mhz span 2.000 000 mhz cor prm 13 jun 2006 05:48:35 1 1_ 47.43 0.877 436.84 ph 319.500 000 mhz 1 1_: 49.184 -3.6387 136.9 pf 319.500 000 mhz RF1432C sn2 r7 full full ch1 s 21 log mag 1 db/ ref -4 db ch1 center 319.500 000 mhz span 2.000 000 mhz cor prm ch2 s 21 log mag ref -3 db 10 db/ ch2 center 319.500 000 mhz span 50.000 000 mhz cor prm 13 jun 2006 05:49:08 1 2 3 4 1_: 0 db 0.000 000 mhz max ref=1 bw: .608 859 mhz cent: 319.496746 mhz q: 524.75 1_ loss: -1.8101 db 1 2 3 1_ 0 db 0.000 000 mhz ref=1 2_ -58.838 db -10.7 mhz 3_ -58.007 db -21.4 mhz RF1432C sn2 r7 resp resp
www.rfm.com e-mail: info@rfm.com page 3 of 3 ?2008 by rf monolithics, inc. RF1432C - 3/21/08 a 1 2 3 b 7 6 5 4 c d 7 6 5 4 e f g 1 2 3 8 8 absolute maximum ratings rating value units input power level 10 dbm dc voltage 12 vdc storage temperature 5 -40 to +85 c soldering temperature (10 seconds / 5 cycles max.) 260 c pin connection 1 input 2 input ground 3 ground 4 case ground 5 output 6 output ground 7 ground 8 case ground matching circuit to 50 w electrical connections dimension mm inches min nom max min nom max a 4.8 5.0 5.2 0.189 0.197 0.205 b 4.8 5.0 5.2 0.189 0.197 0.205 c 1.30 1.50 1.7 0.050 0.060 0.067 d 1.98 2.08 2.18 0.078 0.082 0.086 e 1.07 1.17 1.27 0.042 0.046 0.05 f 0.50 0.64 0.70 0.020 0.025 0.028 g 2.39 2.54 2.69 0.094 0.100 0.106 case dimensions 1 2 3 8 input output 7 6 5 4 82nh 82nh pin connection 1 input ground 2 input 3 ground 4 case ground 5 output ground 6 output 7 ground 8 case ground optional electrical connections matching circuit to 50 w 7 6 5 4 1 2 3 8 input output 82 nh 82 nh
|
