Approved by: Checked by: Issued by: SPECIFICATION PRODUCT: SAW FILTER MODEL: HF738902M (K7252M) SIP5K HOPE MICROELECTRONICS CO.,LIMITED Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com Page 1 of 1 1.Construction 1.1 Dimension and materials Type : F738901M 1.2. Circuit construction, measurement circuit 2.Characteristics Standard atmospheric conditions Unless otherwise specified , the standard rang of atmospheric conditions for making measurements and tests is as follows; Ambient temperature : 15℃ to 35℃ Relative humidity : 25% to 85% Air pressure : 86kPa to 106kPa 1 Operating temperature rang Operating temperature rang is the rang of ambient temperatures in which the filter can be operated continuously. -10℃ ~ +60℃ Storage temperature rang Storage temperature rang is the rang of ambient temperatures at which the filter can be stored without damage. Conditions are as specified elsewhere in these specifications. -40℃ ~ +70℃ Reference temperature +25℃ 2.1 Maximum Rating DC voltage AC voltage VDC Vpp 12 10 V V Between any terminals Between any terminals 2.2 Electrical Characteristics Characteristics in B/G, D/K mode (switching pin 2 connected to ground) Source impedance Zs=50Ω Load impedance ZL=2kΩ//3pF TA=25℃ Item Freq min typ max Insertion attenuation 37.40MHz 14.9 16.9 18.9 dB Reference level 38.90MHz 4.1 5.6 7.1 dB 34.47MHz 0 1.2 2.4 dB 32.40MHz 17.2 19.2 21.2 dB 33.40MHz 15.5 17.5 dB Relative attenuation 30.90MHz 42.0 55.0 dB 31.90MHz 37.0 50.0 dB 40.40MHz 41.0 50.0 dB 41.40MHz 40.0 16.0 dB 25.00~30.90MHz 35.0 42.0 dB Sidelobe 40.40~45.00MHz 32.0 39.0 dB Reflected wave signal suppression 1.2 us … 6.0 us after main pulse 40.0 50.0 dB (test pulse 250 ns , carrier frequency 37.40 MHz) Feedthrough signal suppression 1.2 us … 6.0 us after main pulse 42.0 52.0 dB (test pulse 250 ns , carrier frequency 37.40 MHz) Group delay predistortion： (reference frequency 38.90 MHz) 36.80 MHz -40 ns 34.47 MHz 50 ns Temperature coefficient -72 ppm/k 2 Characteristics in M/N mode (switching input pin 2 connected to input pin 1 ) Source impedance Load impedance Item Insertion attenuation Reference level Zs=50Ω ZL=2kΩ//3pF TA=25℃ Freq min Typ max 37.40MHz 15.0 17.0 19.0 dB 38.90MHz 35.32MHz Relative attenuation 34.40MHz 32.90MHz 40.40MHz 25.00~32.90MHz Sidelobe 40.40~45.00MHz Reflected wave signal suppression 1.2 us … 6.0 us after main pulse (test pulse 250 ns , carrier frequency 37.40 MHz) Feedthrough signal suppression 1.2 us … 6.0 us after main pulse (test pulse 250 ns , carrier frequency 37.40 MHz) Temperature coefficient 4.4 0.6 16.5 40.0 40.0 35.0 30.0 5.9 1.8 18.5 52.0 48.0 41.0 37.0 7.4 3.0 20.5 - dB dB dB dB dB dB dB 40.0 50.0 dB - 48.0 dB -72 ppm/k 2.3 Environmental Performance Characteristics Item Test condition Allowable change of absolute Level at center frequency(dB) High temperature test < 1.0 70℃ 1000H Low temperature test < 1.0 -40℃ 1000H Humidity test < 1.0 40℃ 90-95% 1000H Thermal shock < 1.0 -20℃==25℃==80℃ 20 cycle 30M 10M 30M Solder temperature test < 1.0 Sold temp.260℃ for 10 sec. Soldering More then 95% of total Immerse the pins melt solder area of the pins should be covered with solder at 260℃+5/-0℃ for 5 sec. 2.4 Mechanical Test Item Test condition Vibration test Allowable change of absolute Level at center frequency(dB) <1.0 3 600-3300rpm amplitude 1.5mm 3 directions 2 H each Drop test On maple plate from 1 m high 3 times Lead pull test Pull with 1 kg force for 30 seconds Lead bend test 90o bending with 500g weigh 2 times 2.5 Voltage Discharge Test Item Test condition Surge test Between any two electrode <1.0 <1.0 <1.0 Allowable change of absolute Level at center frequency(dB) <1.0 4