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Specification for a Connectorized Crystal Filter
MtronPTI P/N: XF9370
I. General & Electrical Requirements
1. Center Frequency (FON): 73.0MHz
2. 1dB Bandwidth:  80.0kHz
3. Insertion Loss (@ peak of transmission within the 1dB bandwidth): ≤ 3.0dB
4. Passband Ripple (peak-valley): ≤ 1dB
5. Input/Output VSWR: ≤ 1.4:1
6. Group Delay
Absolute Delay: 2.74µsec ±0.25 µsec
Delay Variation (any 5kHz increment within FON ±35kHz): ≤ 0.75ηsec
7. Rejection:
≥ 25dBc: 59.5MHz to 72.6MHz
≥ 25dBc: 73.57MHz to 74.63MHz
8. Input Signal Level: ≤ 0dBm
9. ZS/ZL: 50 nominal
II. Environmental & Physical Requirements:
1. Temperature Range
Operating: -40C to +85C
Storage: -45C to +90C
2. Package: Connectorized (ref drawing Figure 1)
Figure 1 – Filter Package Outline Drawing
Rev. - 11/15/11
Page 1 of 2
Proprietary Document Information contained herein is proprietary to MtronPTI and is submitted in confidence.
Information may not be copied or divulged without written permission from MtronPTI.
Specification for a Connectorized Crystal Filter
MtronPTI P/N: XF9370
III. Design Simulation Plots:
Pass Band
Stop Band
0
-1
-15
-2
-30
S21(dB) Ref. 4.5 dB I. Loss
S21 (dB) Ref. 4.5 dB I. Loss
0
-3
-4
-5
-6
-45
-60
-75
-90
-105
-7
-120
-8
-135
-9
-150
70.6 71.08 71.56 72.04 72.52 73 73.48 73.96 74.44 74.92 75.4
Frequency (MHz)
-10
72.85 72.88 72.91 72.94 72.97 73 73.03 73.06 73.09 73.12 73.15
Frequency (MHz)
Extended Stopband
0
S21 (dB) Ref. 4.5 dB I. Loss
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
71
5
71.4
71.8
72.2
72.6
73
73.4
Frequency (MHz)
S21 Group delay (nsec)
2.5
2
1.5
1
74.6
75
1) 72.9652 MHz
2.918691 us
4
3
74.2
Group Delay
4.5
3.5
73.8
1
v
2
v
4
v
3
v
2) 72.97 MHz
2.879081 us
Delta to "MaxL"
ΔX= 4.8e-3 MHz
ΔY= -39.61002 ns
3) 73.03 MHz
2.876955 us
Delta to "MaxU"
ΔX= -4.8e-3 MHz
ΔY= -32.75867 ns
0.5
4) 73.0348 MHz
0
2.909714 us
72.8572.8872.91 72.94 72.97 73 73.0373.0673.0973.1273.15
Frequency (MHz)
Rev. - 11/15/11
Page 2 of 2
Proprietary Document Information contained herein is proprietary to MtronPTI and is submitted in confidence.
Information may not be copied or divulged without written permission from MtronPTI.