Part Number 854666
70 MHz SAW Filter
Data Sheet
Features
Usable bandwidth of 12 MHz
Typical 3 dB bandwidth of 12.5 MHz
Low loss
High attenuation
Single-ended operation, 50
Ceramic Surface Mount Package (SMP)
Hermetic
Package Pin Configuration
Surface Mount 13.30 x 6.50 x 1.75 mm Bottom View
1 2 3 4
1.75 NOM.
12 5
1.96 MAX.
11
6
0.76
10 9 8 7
13.3
2.54
2.18
Pin No. Description
6.50 2.54
5 Output
11 Input
6,12 Ground
1,2,3,4 Case Ground
1.17 x 3.76
0.79 1.50
7,8,9,10 Case Ground
Dimensions shown are nominal in millimeters
All tolerances are 0.15mm except overall
length and width 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 - 14-Mar-2005 Page 1 of 5 Part Number 854666
70 MHz SAW Filter
Data Sheet
(1)
Electrical Specifications
(2) o
Operating Temperature: +25 C
Parameter Minimum Typical Maximum Unit
Center Frequency 69.8 70 70.2 MHz
Insertion Loss at F - 11.5 12.5 dB
O
1 dB Bandwidth 11.45 11.65 - MHz
3 dB Bandwidth 12 12.5 - MHz
40 dB Bandwidth - 17.35 18.25 MHz
Passband Ripple
64.6 - 75.4 MHz - 0.6 1 dB
Phase Linearity
64.6 - 75.4 MHz - 9 11.5 deg
Group Delay Variation
64.6 - 75.4 MHz - 70 90 nsec
Absolute Delay - 1.08 - sec
o
Temperature Coefficient - -94 - ppm/ C
(3)
Source Impedance - 50 -
(3)
Load Impedance - 50 -
Notes:
1. All specifications are based on the test circuit shown below
2. All specifications are tested at room temperature only
3. 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
120nH 120nH
11
5
50 50
Single-ended Single-ended
1,2,3,4,6,
50
50
Input Output
7,8,9,10,12
Subject to change or obsolescence without notice Rev - 14-Mar-2005 Page 2 of 5