855744 Datasheet, PDF (2/5 Pages) TriQuint Semiconductor – 70 MHz SAW Filter

Preliminary Data Sheet
Part Number 855744
70 MHz SAW Filter
Electrical Specifications ⁽¹⁾
Operating Temperature Range: ⁽²⁾
0 to +70 ^oC
Parameter ⁽³⁾
Center Frequency
Minimum Insertion Loss
Lower 1 dB Bandedge ⁽⁴⁾
Upper 1 dB Bandedge
Lower 3 dB Bandedge ⁽⁴⁾
Upper 3 dB Bandedge
Lower 40 dB Bandedge ⁽⁴⁾
Upper 40 dB Bandedge
Amplitude Variation
67.9 - 72.1 MHz
Phase Linearity
67.9 - 72.1 MHz
Group Delay Variation
67.9 - 72.1 MHz
Absolute Delay
Relative Attenuation⁽⁴⁾
10 - 58 MHz
58 - 65 MHz
75 - 82 MHz
82 - 124 MHz
124 - 140 MHz
140 - 200 MHz
Source Impedance ⁽⁵⁾
Load Impedance ⁽⁵⁾
Substrate Material
Temperature Coefficient of Frequency
Minimum
-
-
-
72.1
-
72.35
66.68
-
-
-
-
-
42.0
36.5
42.0
42.5
37.5
50.0
-
-
-
-
Typical
70
24.15
67.7
72.25
67.5
72.45
66.75
73.18
0.58
3.0
67.0
2.3
51
45
47
54
46
64
50
50
LiTaO₃
-23
Maximum
-
25.5
67.9
-
67.65
-
-
73.32
1.15
5.85
135
-
-
-
-
-
-
-
-
-
-
-
Unit
MHz
dB
MHz
MHz
MHz
MHz
MHz
MHz
dB p-p
deg p-p
nsec
µsec
dB
dB
dB
dB
dB
dB
Ω
Ω
-
ppm/^oC
Notes:
1. All specifications are based on the matching schematic shown on page 4
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
Subject to change or obsolescence without notice
Rev -
03-Apr-2002
Page 2 of 5