JRC NSVS778 User Manual

NSVS778 Apr. 2005

JRC SAW FILTER

NSVS778

Application

2488.32MHz Data Communications

Electrical Specification: (Table 1)

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

Table 1. Electrical Specifications			(at Room Temperature)
Item			Spec.	Typ.
Nominal Center Frequency (f0)			2487.92~2488.72MHz	2488.32MHz
Insertion Loss at	f0		6.0dB max.	5.0dB
Loaded Q			-	1250
Attenuation		f0±10MHz	20dB	25dB
Insertion Phase		2488.32MHz	-	Reference(*1)
Turnover Temperature			37~57ºC	47ºC
Phase Slope			-	0.082deg/kHz
Frequency Temperature Coefficient			-	-0.044ppm/ºC2
Substrate Material			-	Quartz
			*1: Nominal	Phase = 0ºType

Maximum Rating: (Table 2)

Table 2. Maximum Ratings

Item	Rating
Maximum Input Power	0dBm
Operating Temperature Range	-30~+85ºC
Storage Temperature	-30~+85ºC

Mechanical Specifications: (Fig.2)

Package is designed as small as 3.2x2.5x1.1[mm3] for SMD (Surface Mount Device) type.

Notice:

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

Communications Equipment Division

Communications Equipment Marketing Department

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

Tokyo, 160-8328 Japan

Tel. [phone]

Fax. [phone] http://www.jrc.co.jp/jp/product/device/saw/index.html (Japanese) http://www.jrc.co.jp/eng/product/saw/index.html(English)

NSVS778 Apr. 2005

IN

5

4

50Ω

6 SAW 3

OUT

50Ω

1 2

(b)	Fig.1 Measuring circuit
	3.2±0.1

2 . 5 ± 0 . 1

1 . 1 ± 0 . 1

0 . 6 ) [2 x ]
(
. 5 5 )	4 x]
0	[
(

33 HS (2)

(a)(1)

			Marking
			(1) Lot Number
			(a) Year
(1.35)			(b) Month
[4x]	1	2		*Oct.---	X
				Nov.---	Y
				Dec.---	Z
			(2) Part number Mark
(0.8)
[2x]			Pin no.	Connection
6		3
			1	GND
			2	IN/OUT
			3	GND
			4	GND
			5	OUT/IN
	5	4	6	GND

Fig.2 Package dimensions (in mm)

	4.0
1.75	1.75

	0.95
	1.2
3.3	0.6
	0.95

Fig.3 Desirable land area (in mm)