Part Number 856065
140 MHz SAW Filter
Preliminary Data Sheet
Features
For broadband applications
Typical 3 dB bandwidth of 3.0 MHz
High attenuation
Single-ended operation
Ceramic Surface Mount Package (SMP)
Replaces Sawtek P/N 851907 (BW 3dB=3.0 MHz)
Hermetic
RoHS compliant (2002/95/EC), Pb-free
Pb
Package Pin Configuration
Surface Mount 19.00 x 6.50 x 1.75 mm Bottom View
1 2 3 4 5
1.75 NOM.
1.96 MAX.
10 9 8 7 6
0.76
19.0
1.91
1.80
Pin No. Description
R0.51
5 RF output
6.50
10 RF input
1,6 Ground
2.31
1.02 2,3,4 Case ground
7,8,9 Case ground
Dimensions shown are nominal in millimeters
All tolerances are 0.15mm except overall
length and width +0.15mm/-0.10mm
Body: Al O ceramic
2 3
Lid: Kovar, Ni plated
Terminations: Au plating 0.5 - 1.0m,
over a 2 - 6m Ni plating
Subject to change or obsolescence without notice Rev B 10-Oct-2005 Page 1 of 5 Part Number 856065
140 MHz SAW Filter
Preliminary Data Sheet
(1)
Electrical Specifications
(2) o
Operating Temperature Range: 0 to +70 C
(3)
Parameter Minimum Typical Maximum Unit
Center Frequency - 140 - MHz
Minimum Insertion Loss - 22.4 24 dB
(4)
Lower 1 dB Bandedge - 138.60 138.71 MHz
Upper 1 dB Bandedge 141.31 141.43 - MHz
(4)
Lower 3 dB Bandedge - 138.43 138.505 MHz
Upper 3 dB Bandedge 141.495 141.61 - MHz
(4)
Lower 40 dB Bandedge 137.57 137.70 - MHz
Upper 40 dB Bandedge - 142.36 142.43 MHz
Amplitude Variation
138.71 - 141.31 MHz - 0.52 1.0 dB
Phase Linearity
138.71 - 141.31 MHz - 1.84 4.35 deg
Group Delay Variation
138.71 - 141.31 MHz - 42 115 nsec
Absolute Delay - 2.02 -
sec
(4)
Relative Attenuation
10 - 80 MHz 50 66 -
dB
80 - 136 MHz 50 61 -
dB
144 - 200 MHz 50 55 -
dB
200 - 300 MHz 50 58 -
dB
(5)
Source Impedance: - 50 -
(5)
Load Impedance: - 50 -
Substrate Material - Quartz - -
Notes:
1. All specifications are based on the test circuit shown below
2. In production, devices will be tested at room temperature to a guardbanded specification to ensure electrical compliance over
temperature
3. Electrical margin has been built into the design to account for the variations due to temperature drift and manufacturing tolerances
4. All attenuation measurements are measured relative to minimum insertion loss
5. This is the optimum impedance in order to achieve the performance shown
Test Circuit:
Actual matching values may vary due to PCB layout and parasitics
240nH 8pF 120nH
10 5
50
10pF 33pF 50
50
Single-ended
1,2,3,4
6,7,8,9,11
Subject to change or obsolescence without notice Rev B 10-Oct-2005 Page 2 of 5