HOPERF HF418TO-39

HF4 18
418MHz SAW Filter
Approved by:
Checked by:
Issued by:
SPECIFICATION
PRODUCT:
SAW FILTER
MODEL:
HF418
TO-39
HOPE MICROELECTRONICS CO.,LIMITED
Tel:+86-755-82973806
Fax:+86-755-82973550
E-mail: [email protected]
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SAW Filter
HF418
The HF418 is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter in a
low-profile metal TO-39 case designed to provide front-end selectivity in 418.000 MHz receivers.
Receiver designs using this filter include superhet with 10.7 MHz or 500 kHz IF, direct conversion
and superregen.
1.Package Dimension (TO-39)
2.Marking
Pin
Configuration
1
Input / Output
2
Output / Input
3
Case Ground
Dimension
Data (unit: mm)
A
9.30±0.20
B
5.08±0.10
C
3.40±0.20
D
3±0.20∕5±0.20
E
0.45±0.20
3.Test Circuit
HF418
Color: Black or Blue
4.Typical Frequency Response
Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com
SAW Filter
HF418
5.Performance
5-1.Maximum Rating
Rating
Value
Unit
P
+10
dBm
DC Voltage Between Any Two Pins
VDC
±30
V
Storage Temperature Range
Tstg
-40 to +85
℃
Operating Temperature Range
TA
-10 to +60
℃
CW RF Power Dissipation
5-2.Electronic Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
TA= 25℃
ZS= 50Ω and matching network
ZL= 50Ω and matching network
Characteristic
Minimum
Center Frequency
(center frequency between 3dB points)
fC
Insertion Loss
IL
3dB Bandwidth
BW3
Temperature
Maximum
Unit
418.000
--
MHz
3.5
5.0
dB
600
800
kHz
±1.0
dB
∆α
Passband Ripple
Rejection
Typical
at fC -21.4MHz (Image)
40
50
--
at fC -10.7MHz (LO)
20
30
--
Ultimate
--
60
-℃
Turnover Temperature
TO
Turnover Frequency
fO
fC
MHz
FTC
0.032
ppm/℃
|fA|
10
ppm/yr
Frequency Temperature Coefficient
Frequency Aging Absolute Value during the First Year
25
dB
55
2
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling!
C
○
1.
2.
3.
4.
5.
6.
7.
8.
9.
2003. All Rights Reserved.
The frequency fC is defined as the midpoint between the 3dB frequencies.
Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture that is
connected to a 50Ω test system with VSWR≤1.2:1. The test fixture L and C are adjusted for minimum
insertion loss at the filter center frequency, fC. Note that insertion loss, bandwidth, and passband shape are
dependent on the impedance matching component values and quality.
Unless noted otherwise, specifications apply over the entire specified operating temperature range.
Frequency aging is the change in fC with time and is specified at +65°C or less. Aging may exceed the
specification for prolonged temperatures above +65°C. Typically, aging is greatest the first year after
manufacture, decreasing in subsequent years.
Turnover temperature, T0, is the temperature of maximum (or turnover) frequency, f0. The nominal frequency
at any case temperature, TC, may be calculated from: f = f0 [1 - FTC (T0 - TC)2].
The specifications of this device are based on the test circuit shown above and subject to change or
obsolescence without notice.
All equipment designs utilizing this product must be approved by the appropriate government agency prior to
manufacture or sale.
Our liability is only assumed for the Surface Acoustic Wave (SAW) component(s) per se, not for applications,
processes and circuits implemented within components or assemblies.
For questions on technology, prices and delivery, please contact our sales offices or e-mail [email protected].
Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: [email protected] http://www.hoperf.com