SAW Filter
5.Performance
5-1.Maximum Rating
Rating
CW RF Power Dissipation
DC Voltage Between Any Two Pins
Storage Temperature Range
Operating Temperature Range
P
V
DC
T
stg
T
A
Value
+10
±30
-40 to +85
-10 to +60
Unit
dBm
V
℃
℃
HF318
5-2.Electronic Characteristics
Reference temperature:
Terminating source impedance:
Terminating load impedance:
Characteristic
Center Frequency
(center frequency between 3dB points)
Insertion Loss
3dB Bandwidth
Passband Ripple
at f
C
-21.4MHz (Image)
Rejection
at f
C
-10.7MHz (LO)
Ultimate
Turnover Temperature
Temperature
Turnover Frequency
T
A
= 25℃
Z
S
= 50Ω and matching network
Z
L
= 50Ω and matching network
Minimum
f
C
IL
BW
3
∆α
40
20
--
T
O
f
O
FTC
|fA|
25
f
C
0.032
10
50
30
60
--
Typical
318.000
3.0
600
4.5
800
±1.0
--
--
--
55
℃
MHz
ppm/℃
2
Maximum
Unit
MHz
dB
kHz
dB
dB
Frequency Temperature Coefficient
Frequency Aging Absolute Value during the First Year
ppm/yr
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling
!
C
○
1.
2.
2003. All Rights Reserved.
The frequency f
C
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, f
C
. 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 f
C
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, T
0
, is the temperature of maximum (or turnover) frequency, f
0
. The nominal frequency
at any case temperature, T
C
, may be calculated from: f = f
0
[1 - FTC (T
0
- T
C
)
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
sales@hoperf.com.
3.
4.
5.
6.
7.
8.
9.
Tel:+86-755-82973806 Fax:+86-755-82973550 E-mail: sales@hoperf.com http://www.hoperf.com
HOPERF [ Hope Microelectronics co., Ltd ]
