Datasheets SF480-2 Datasheet

480.00 MHz SAW Filter

 Ideal for DBS Receivers, IF Filter
 Constant Group Delay
 Improved ESD capability by integrated shunt resistors
 Rugged, Hermetic, Low Profile TO-39 Package

Absolute Maximum Rating (Ta=25°C)

Parameter Rating Unit
AC Voltage Between Any Two Pins VPP 5 V
DC Voltage Between Any Two Pins VDC 0 V
Operating Temperature Range TA -25 ~ +85
Storage Temperature Range T

Parameter Sym Minimum Typical Maximum Unit

Center Frequency (25°C) Between 3dB point
Tolerance from 480.00 MHz

Insertion Attenuation
3dB Bandwidth BW
Relative Attenuation

466.00 MHz

493.00 MHz
Lower Sidelobe 430.00 … 452.00 MHz
Upper Sidelobe 507.00 … 530.00 MHz
Reflected Wave Signal Suppression

0.13µs … 2.0µs after main pulse
Amplitude Ripple (p-p) 471.00 … 488.00 MHz
Group Delay Ripple (p-p) 466.00 … 493.00 MHz
Temperature Coefficient of Frequency

Parameter Sym Minimum Typical Maximum Unit

Center Frequency (25°C) Between 3dB point
Tolerance from 480.00 MHz

Insertion Attenuation
3dB Bandwidth BW
Relative Attenuation

475.50 MHz

488.50 MHz
Lower Sidelobe 430.00 … 457.50 MHz
Upper Sidelobe 500.50 … 530.00 MHz
Reflected Wave Signal Suppression

0.13µs … 2.0µs after main pulse
Amplitude Ripple (p-p) 476.00 … 483.00 MHz
Group Delay Ripple (p-p) 470.50 … 488.50 MHz
Temperature Coefficient of Frequency

NS = Not Specified

-40 ~ +85

stg

Electronic Characteristics of Channel 1

f

C

∆

fC

α

3

α

rel

- 40.0 49.0 - dB

∆α

∆τ

FTC

Electronic Characteristics of Channel 2

f

C

∆

fC

α

3

α

rel

- 40.0 44.0 - dB

∆α

∆τ

FTC

NS

32
30

NS

32
30

-

- 21.0 22.5 dB

- 27 - MHz

-

-

- 0.6 1.2 dB

- 11.0 18.0 ns

- -86 - ppm/K

-

- 21.0 22.5 dB

- 18 - MHz

-

-

- 0.6 1.2 dB

- 11.0 18.0 ns

- -86 - ppm/K

SF480-2

480.00

-

3.3

2.5
38
36

480.00

-

3.5

2.3
38
36

°C
°C

NS

1.0

4.5

4.5

-

-

NS

1.0

4.5

4.5

-

-

MHz
MHz

dB
dB
dB
dB

MHz
MHz

dB
dB
dB
dB

Phone: [phone] Fax: [phone] Email: [email protected] Web: http://www.vanlong.com
© 2003 by Vanlong Technology Co., Ltd. SF480-2

480.00 MHz SAW Filter

Notes:

1. The frequency fC is defined as the midpoint between the 3dB
frequencies.

2. Unless noted otherwise, all measurements are made with the filter
installed in the specified test fixture that is connected to a 50Ω test
system with VSWR ≤ 1.2:1. The test fixture L and C are adjusted
for minimum insertion loss at the filter center frequency, fC. Note
that insertion loss, bandwidth, and passband shape are dependent
on the impedance matching component values and quality.

3. Unless noted otherwise, specifications apply over the entire
specified operating temperature range.

Package Dimensions (TO-39-4)

4. The specifications of this device are based on the test circuit
shown above and subject to change or obsolescence without
notice.

5. All equipment designs utilizing this product must be approved by
the appropriate government agency prior to manufacture or sale.

6. Our liability is only assumed for the Surface Acoustic Wave (SAW)
component(s) per se, not for applications, processes and circuits
implemented within components or assemblies.

7. For questions on technology, prices and delivery please contact
our sales offices or e-mail [email protected].

Electrical Connections

Terminals Connection

1 Input / Output
2 Output 2 / Input 2
3 Output 1 / Input 1
4 Case Ground

Package Dimensions

Dimensions Nom. (mm) Tol. (mm)

A
B
C
D
E

F
G 1.0
H 0.6

9.35

3.40

3.00

0.45

5.08

2.54

±0.10
±0.10
±0.20
±0.10
±0.10
±0.20

Marking Equivalent LC Model

SF480-2

480.00

Ink Marking
Color: Black or Blue

Typical Frequency Response

Channel 1 Channel 2

Phone: [phone] Fax: [phone] Email: [email protected] Web: http://www.vanlong.com

© 2003 by Vanlong Technology Co., Ltd. SF480-2