JRC NSVS681 Manuel utilisateur

NSVS681 Jan. 2005

Application

314.35MHz R.K.E.

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) 314.35MHz -

Insertion Loss 313.85~314.85MHz 3.0dB max. 1.8dB

Response Variation 313.85~314.85MHz 1.5dB max. 0.6dB

Input and Output VSWR 313.85~314.85MHz 2.5 max. 1.5

292.95MHz 50dB min. 67dBOut of Band Rejection

(Relative to Through Level) 335.75MHz 45dB min. 51dB

(Operating Temperature Range: -20~+70ºC)

Table 2. Maximum Ratings

Item Rating

Maximum Input Power +20dBm

Maximum DC Voltage 7.5V

Operating Temperature Range -20~+70ºC

Storage Temperature -30~+80ºC

JRC SAW FILTER

NSVS681

Communications Equipment Division

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)

NSVS681 Jan. 2005

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)

J18

345

SAW

50ΩOUT

50Ω

Via-Hole(

0.3)

1.27

1.3 0.8

4.3

0.8

[6x]

NSVS681 Jan. 2005

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 -20ºC or more than +70ºC, 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.

Japan Radio Co.,Ltd.

100

S21

Insertion Loss [dB]

CH1 : center 314.35 span 100

CH2 : center 314.35 span 100

Insertion Loss [dB]

FREQUENCY CHARACTERISTICS

NSVS681 Jan. 2005

S11 S22

1 1

3 3

5 5

7 7

9 9

11 11

264.3 264.3364.3 364.3

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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