856638_15 Datasheet, PDF (2/6 Pages) TriQuint Semiconductor – 456 MHz SAW Filter

Data Sheet
Part Number 856638
456 MHz SAW Filter
Target Electrical Specifications ⁽¹⁾
Operating Temperature Range: ⁽²⁾
-20 to +60 ^oC
Parameter ⁽³⁾
Center Frequency
Minimum Insertion Loss
451 - 461 MHz
Amplitude Variation
451 - 461 MHz
30 dB Bandwidth ⁽⁴⁾
Relative Attenuation ⁽⁴⁾
10 - 256 MHz
256 - 360 MHz
360 - 421 MHz ⁽⁵⁾
421 - 440 MHz
472.4 - 491 MHz
491 - 552 MHz ⁽⁵⁾
552 - 656 MHz
656 - 946 MHz
Absolute Group Delay at Center Frequency
Group Delay Variation
451 - 461 MHz
Input/Output Return Loss
451 - 461 MHz
Optimal Source Impedance (Balanced) ⁽⁶⁾
Optimal Load Impedance (Balanced) ⁽⁶⁾
Minimum
-
-
-
-
45
40
45
37
39
45
40
45
-
-
9
-
-
Typical
456
8.3
0.4
20.1
70
65
50
40
42
50
55
60
0.43
35
14
200
200
Maximum
-
9.5
1.25
20.55
-
-
-
-
-
-
-
-
0.45
65
-
-
-
Unit
MHz
dB
dB
MHz
dB
dB
dB
dB
dB
dB
dB
dB
µsec
ns
dB
Ω
Ω
Notes:
1. All specifications are based on TriQuint 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. Referenced to minimum insertion loss
5. The rejection “floor” in specified ranges allows for 100KHz wide spurious responses at a max peak of 40dB below minimum
insertion loss
6. 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
200Ω
Balanced
Input
200Ω
3nH
1
18nH
5
15nH
6pF
2 3,4,7,8 6
3nH
18nH
200Ω
200Ω
Balanced
Output
Subject to change or obsolescence without notice
Rev A
08-07 TriQuint Semiconductor, Inc. ©
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