the actf8037-868.95-qcc8c is a low-loss, compact, and ec onomical surface-acoustic-wave ( saw ) filter in a surface-mount ceramic qcc8c case designed to provide front-end selectivity in 868.950 mhz receivers. receiver desi gns using this filter include s uperhet with 10.7 mhz or 500 khz if, direct conversion and superregen. 1. package dimension (qcc8c) pin connection 1 input / output 5 output / input 2, 3, 6, 7 to be grounded 4,8 case ground sign data (unit: mm) sign data (unit: mm) a 2.08 e 1.20 b 0.60 f 1.35 c 1.27 g 5.00 d 2.54 h 5.00 2 . marking 3. test circuit laser printing 4. t ypical frequency response iss 1 c1u date 23-6-2011
iss 1 c1u date 23-6-2011 5. performance 5-1. maximum ratings rating value unit input power level p in 10 dbm dc voltage v dc 12 v storage temperature range t stg -40 to +125 c operating temperature range t a -40 to +125 c 5-2. electronic characteristics characteristic minimum typical maximum unit center frequency f c (center frequency between 3db points) 868.950 mhz insertion loss il -- 3.5 5.0 db 3db pass band bw 3 1,200 khz at f c 21.4mhz (image) 30 42 -- at f c 10.7mhz (lo) 20 37 -- rejection ultimate -- 60 -- db turnover temperature t o 25 55 c turnover frequency f o fc mhz temperature frequency temperature coefficient ftc 0.032 ppm/ c 2 frequency aging absolute value during the first year | fa | 10 ppm/yr ? caution: electrostatic sensitive device. observe precautions for handling! note: 1. the frequency f c is defined as the midpoint between the 3db frequencies. 2. unless noted otherwise, all measurements are made with the filter installed in the spec ified test fixture that is connected to a 50 ? test system with vswr 1.2:1. the test fixtur e 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. 3. unless noted otherwise, specifications apply over the entire specified oper ating temperature range. 4. frequency aging is the change in f c with time and is specified at +65c or less. aging may exceed the specification for prolonged temperatures above +65c. typically, aging is great est the first year after manufacture, decreasing in subsequent years. 5. turnover temperature, t 0 , is the temperature of maximum (or turnover) frequency, f 0 . the nominal frequency at any case temperature, t c , may be calculated from: f = f 0 [1 - ftc (t 0 - t c ) 2 ]. 6. the specifications of th is device are based on the test circuit show n above and subject to change or obsolescence without notice. 7. all equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale. 8. our liability is only assumed for the surface acousti c wave (saw) component(s) per se, not for applications, processes and circuits implemented within components or assemblies.
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