851905 datasheet, PDF - EEWORLD Datasheet

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851905: DescriptionSAW Filter, 1 Function(s), 140MHz,; CategoryAnalog mixed-signal IC filter; File Size30KB，1 Pages; ManufacturerSawtek Inc.

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851905 Overview

SAW Filter, 1 Function(s), 140MHz,

851905 Parametric

Parameter Name	Attribute value
Maker	Sawtek Inc.
Reach Compliance Code	unknown
Center frequency or cutoff frequency (fo/fc)	140 MHz
filter type	SAW FILTER
high	5.33 mm
input resistance	50 OHM
Maximum insertion loss	26 dB
length	22.09 mm
Manufacturer's serial number	851905
Installation type	THROUGH HOLE MOUNT
Number of functions	1
Output impedance	50 OHM Ω
physical size	L22.09XB12.64XH5.33 (mm)/L0.87XB0.498XH0.21 (inch)
Base Number Matches	1

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140 MHz Bandpass Filter

Data Sheet

Typical Performance

10

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

137

137.6

138.2

1

0

-1

-2

-3

-4

-5

-6

-7

-8

-9

141.8

142.4

143

138.5

138.8

139.1

175

140

105

70

35

0

-35

-70

-105

-140

-175

140.9

141.2

26

-

3.9

0.6

3

120

-

141.5

2 MHz Bandwidth

Part Number 851905

138.8

139.4

140.6

141.2

139.4

139.7

140.3

Parameter

Center Frequency

Insertion Loss

1 dB Bandwidth

3 dB Bandwidth

40 dB Bandwidth

Passband Variation

Phase Linearity

Group Delay Variation

Absolute Delay

Ultimate Rejection

Substrate Material

Ambient Temperature

Specifications

Unit

Minimum

MHz

dB

MHz

dB

deg

nsec

µsec

dB

-

°C

139.88

-

1.65

2

-

50

-

Typical

140

23.8

1.75

2.071

3.6

0.28

1.6

45

2.7

60

Quartz

25

140.6

Horizontal: 600 kHz/Div

Vertical: 10 dB/Div

140

Horizontal: 300 kHz/Div

Vertical: 1 dB/Div

Vertical: 35 nsec/Div

140

Maximum

140.12

Package Outline

Matching Configuration

L1 = 50 nH , L2 = 63 nH

Nominal Source/Load Impedance = 50Ω

Package Style I

11/24/99

Sawtek Inc.

Telephone: (407) 886-8860

Fax: (407) 886-7061

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