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| 型号： | RF1432C |
| 厂商： | RFM |
| 文件页数： | 1/3页 |
| 文件大小： | 0K |
| 描述： | NARROWBAND SAW FILTER, SM5050-8 |
| 标准包装： | 1 |
| 频率： | 319.5MHz 中间 |
| 带宽： | 600kHz |
| 滤波器类型： | 带通 |
| 插入损耗： | 1.8dB |
| 应用： | 无线 |
| 封装/外壳： | 8-SMD，无引线 |
| 安装类型： | 表面贴装 |
| 包装： | 标准包装 |
| 高度（最大）： | 0.067"（1.70mm） |
| 尺寸/尺寸： | 0.197" L x 0.197" W（5.00mm x 5.00mm） |
| 其它名称： | 583-1195-6 |
RF1432C
?
Ideal Front-End Filter for European Wireless Receivers
?
?
?
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
Complies with Directive 2002/95/EC (RoHS)
Pb
319.500 MHz
SAW Filter
The RF1432C is a low-loss, compact and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 319.500 MHz receivers. Recevier designs using this filter include superhet with
10.7 MHz or 500 kHz IF, direct conversion and superregen.
This coupled-resonator filter (CRF) uses selective null placement to provide suppression, typically greater
than 40 dB, of the LO and image spurious responses of superhet receivers with 10.7 MHz IF. RFM’s
advanced SAW design and fabrication technology is utilized to achieve high performance and very low loss
with simple external impedance matching (not included). Quartz construction provides excellent frequency
stability over a wide temperature range.
SM5050-8 Case
5x5
Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
Maximum
Units
Center Frequency at 25°C
Insertion Loss
Absolute Frequency
Tolerance from 319.500 MHz
f C
? f C
IL
1, 2
1
319.420
1.8
319.580
±80
2.8
MHz
kHz
dB
3 dB Bandwidth
BW 3
1, 2
500
600
800
kHz
Rejection
at f c - 21.4 MHz (Image)
40
50
at f c - 10.7 MHz (LO)
1
40
50
dB
Ultimate
80
Temperature
Operating Case Temperature
T C
-40
+85
°C
Turnover Temperature
Turnover Frequency
T O
f O
3, 4
25
40
f C
55
°C
MHz
Frequency Temperature Coefficent
FTC
0.032
ppm/°C 2
Frequency Aging
Impedance @ FC
Absolute Value during the First Year
INPUT Z IN = R IN // C IN
OUTPUT Z OUT = R OUT // C OUT
IfAI
Z IN
Z OUT
5
1
1
≤ 10
3.97k ? // 4.37pF
2.56k ? // 4.27pF
ppm/yr
Lid Symbolization (in addition to Lot and/or Date Codes)
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
621 // DATECODE
1.
2.
3.
4.
5.
6.
7.
8.
Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50 ? 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.
The frequency f c is defined as the midpoint between the 3dB frequencies.
Where noted, specifications apply over the entire specified operating temperature range.
The turnover temperature, T O , is the temperature of maximum (or turnover) frequency, f o . The nominal frequency at any case temperature, T c , may
be calculated from: f = f o [1 - FTC (T o - T c ) 2 ].
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 significantly in subsequent years.
The design, manufacturing process, and specifications of this device are subject to change without notice.
One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 1 of 3
RF1432C - 3/21/08
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