User manual JRC NSVA278

[. . . ] 2004 JRC SAW FILTER NSVA278 Application Cordless telephone Electrical Specification: (Table 1) The device characteristics are measured in the circuit shown in Fig. 1. Input and Output Impedance 50 Nominal Center Frequency (f0) 903MHz Insertion Loss 901. 8~904. 2MHz 3. 5dB max. [. . . ] 1 2 3 4 5 6 7 8 Connection GND IN/OUT GND GND GND OUT/IN GND GND 1 . 0 ±0 . 2 (2 . 54) 2 (1 . 2 7 ) 6 (1. 0) [2 x ] 1 8 7 Fig. 2 Package dimensions (in mm) 4. 3 0. 8 1. 3 [6x] 0. 8 [6x] 4. 3 1. 27 1. 27 Via -Hole( 0. 3) Fig. 3 Desirable land area (in mm) NSVA278 Oct. Use this component within operating temperature range. It might not be satisfied with electrical specification without operating temperature range. When it is used less than -10ºC or more than +60ºC, it might be a cause of degradation or destruction of the component. Even if it endures during a short time, it causes degradation of qualification. When soldering iron is used, solder with the temperature at the tip of soldering iron: 350ºC max. , the time of soldering: 10 seconds max. , the power of soldering iron: 30W max. . Notice that the allowed time of soldering with soldering iron is accumulated time, when soldering is repeated. As rapid temperature change for cleaning after reflow soldering might be a cause of destruction clean this component after confirming that temperature of this component goes down to room temperature. Confirm that there are not any influence for qualification to this component in mounting on PCB when this component is cleaned. As it might be a cause of degradation of destruction to apply static electricity to this component, do not apply static electricity or excessive voltage while assembling and measuring. And do not transport this component with bare hand. As it might be a cause of degradation or destruction to apply D. C. voltage between each terminal, apply D. C. This specification specifies the quality of this component as a single unit. [. . . ] 2004 IN 50 O *27nH 11 10 , X , W , U , V OUT 50 O 39pF 12 SAW , P , Q , , T R *27nH , S 33pF 0 S21 FREQUENCY CHARACTERISTICS *murata LQW18A series 0 Insertion Loss [dB] 20 2 (1) 13. 30±0. 20 40 (a) (b) (C) (1. 26±0. 13) (2) 4 60 6 80 100 CH1 : center 903 span 200 CH2 : center 903 span 200 (R0. 3) [4×] J4Y1 VS971 S11 6. 5±0. 20 8 10 (3) S22 Marking (1) Manufacture's Mark (2) Lot Number (a) Year 2. 0 max. (b) Month *Oct. --- X Nov. --- Y Dec. --- Z (c) Date (0. 76) S11 11 9 (2. 54) (2. 54) S22 1 --- 0 -9 10 -19 --- 1 20 -31 --- 2 (3) Part Number Mark 11 9 7 5 3 VSWR 7 5 3 1 803 Frequency [MHz] 1003 VSWR (2. 54±0. 15) (1. 4) [12×] Pin No. Connection 1 2 3 4 5 6 7 8 1003 1 803 GND(PKG) GND(PKG) GND(PKG) GND(PKG) OUT/IN GND(signal) GND(PKG) GND(PKG) GND(PKG) GND(PKG) IN/OUT GND(signal) (0. 8) Frequency [MHz] 0 S21 12 1 2 3 4 5 InsertionLoss [dB] (2. 54±0. 15) 20 40 60 80 11 10 9 8 7 6 [12 ×] 9 10 11 12 (R0. 3) 100 0. 3 [12×] 3000 Fig. 2 PackageFrequency [MHz] mm) dimensions(in Insertion Loss [dB] Fig. 1 Measuring circuit [. . . ]