JRC NSVA278 Bedienungsanleitung

NSVA278 Oct. 2004

Application

Cordless telephone

Electrical Specification: (Table 1)

The device characteristics are measured in the circuit shown in Fig.1.

Maximum Rating: (Table 2)

Mechanical Specifications: (Fig.2)

Package is designed as small as 3.5x3.5x1.0[mm3] for SMD (Surface Mount Device) type.

Notice:

This part is electrostatic discharge sensitive and may be damaged by improper handling.

Table 1. Electrical Specifications

Item Spec. Typ.

Input and Output Impedance - 50Ω

Nominal Center Frequency (f0) - 903MHz

Insertion Loss 901.8~904.2MHz 3.5dB max. 2.5dB

Response Variation 901.8~904.2MHz 1.5dB max. 0.5dB

Input and Output VSWR 901.8~904.2MHz 2.5 max. 1.8

DC ~<823MHz 55dB min. 60dB min.

823~861MHz 45dB min. 50dB min.

926~928MHz 20dB min. 25dB min.

945~963MHz 30dB min. 32dB min.

Out of Band Rejection

(Relative to

Through Level)

<963~1500MHz 55dB min. 60dB min.

(Operating Temperature Range: -10~+60ºC)

Table 2. Maximum Ratings

Item Rating

Maximum Input Power +20dBm

Maximum DC Voltage 7.5V

Operating Temperature Range -10~+60ºC

Storage Temperature -20~+70ºC

JRC SAW FILTER

NSVA278

Communications and Device Group

Communications Equipment Marketing Department

10-1, Nishi-Shinjuku 6-chome, Shinjuku-ku,

Tokyo, 160-8328 Japan

Tel. +81 3-3348-3845

Fax. +81 3-3348-3935

http://www.jrc.co.jp/jp/product/device/saw/index.html (Japanese)

http://www.jrc.co.jp/eng/product/saw/index.html (English)

NSVA278 Oct. 2004

Marking

(1) Manufacture’s Mark

(2) Lot Number

(a) Year

(b) Month

*Oct.--- X

Nov.--- Y

Dec.--- Z

(3) Part number Mark

Pin no. Connection

1 GND

2 IN/OUT

3 GND

4 GND

5 GND

6 OUT/IN

7 GND

8 GND

3.5±0.2

1.0±0.2

(0.95) (0.8)

[5x]

(2.54)

(1.27)

(0.6)

[8x]

(0.6)

(1.0)

(3)

(2)

(b)

(a)

(1)

[2x]

Fig.1 Measuring circuit

Fig.2 Package dimensions (in mm)

Fig.3 Desirable land area (in mm)

J4X

345

SAW

50ΩOUT

50Ω

Via-Hole(

0.3)

1.27

1.3 0.8

4.3

0.8

[6x]

NSVA278 Oct. 2004

Notice

1. 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.

2. 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..

3. Notice that the allowed time of soldering with soldering iron is accumulated

time, when soldering is repeated.

4. 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.

5. Confirm that there are not any influence for qualification to this component in

mounting on PCB when this component is cleaned.

6. 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.

7. As it might be a cause of degradation or destruction to apply D.C. voltage

between each terminal, apply D.C. voltage 7.5V max. in actual circuit.

Note

1. This specification specifies the quality of this component as a single unit. Make

sure that this component is evaluated and confirmed against this specification

when it is mounted to your products.

2. The information contained herein may be changed without prior notice. It is

therefore advisable to contact Japan Radio Company before proceeding with

the design of equipment incorporating this product.

3. The products are designed to be used with ordinary electronic equipment (data

and communications equipment, office equipment, audio-video equipment,

measuring instruments, etc). Japan Radio Company does not assume any

liability for the case using the products with the application required high

reliability or safety extremely (such as space equipment, sea-bottom equipment,

medical equipment etc). When intending to use any our product please

contact our sales representatives in advance.

100

S21

Insertion Loss [dB]

CH1 : center 903 span 200

CH2 : center 903 span 200

Insertion Loss [dB]

FREQUENCY CHARACTERISTICS

NSVA278 Oct. 2004

S11 S22

1 1

3 3

5 5

7 7

9 9

11 11

803 8031003 1003

Frequency [MHz] Frequency [MHz]

VSWR

InsertionLoss [dB]

100

0.3 3000

S21

Frequency [MHz]

NSVS971 Dec-04

Fig.1 Measuring circuit

13.30±0.20

6.5±0.20

(R0.3)

[4×]

(0.76)

(2.54)

(1.4)

(0.8)

[12×]

(2.54±0.15)

Pin No. Connection

1GND(PKG)

2GND(PKG)

3 GND(PKG)

4GND(PKG)

5OUT/IN

6 GND(signal)

7GND(PKG)

8GND(PKG)

9GND(PKG)

10 GND(PKG)

11 IN/OUT

12 GND(signal)

2.0 max.

(1)

(a) (b)

(3)

Marking

(1) Manufacture's Mark

(2) Lot Number

(a) Year

(b) Month

*Oct.--- X

Nov.--- Y

Dec.--- Z

1-9--- 0

10-19--- 1

20-31--- 2

(3) Part Number Mark

(1.26±0.13)

[12×]

(2.54)

(R0.3)

(2.54±0.15)

(2)

12345

910

(C)

Fig.2 Package dimensions(in mm)

J4Y1

VS971

１２３４

９８７

６

５

OUT

50O

SAW

*27nH

39pF

33pF

*murata LQW18A series

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