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| 型号： | RF3210D |
| 厂商： | RFM |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | SAW FILTER 303.825MHZ SM3838-8 |
| 标准包装： | 500 |
| 频率： | 303.825MHz 中心 |
| 带宽： | 650kHz |
| 滤波器类型： | 带通 |
| 插入损耗： | 1.6dB |
| 应用： | 无线 |
| 封装/外壳： | 8-SMD，无引线 |
| 安装类型： | 表面贴装 |
| 包装： | 带卷 (TR) |
| 高度（最大）： | 0.055"（1.40mm） |
| 尺寸/尺寸： | 0.150" L x 0.150" W（3.80mm x 3.80mm） |
RF3210D
?
Ideal Front-End Filter for Domestic Wireless Receivers
?
?
Low-Loss, Coupled-Resonator Quartz Design
Simple External Impedance Matching
303.825 MHz
?
Complies with Directive 2002/95/EC (RoHS)
Pb
SAW Filter
The RF3210D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 303.825 MHz receivers. Receiver designs using this filter include superheterodyne with
10.7 MHz or lower IF frequencies, direct conversion receivers and superregenerative receivers.
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.
SM3838-8 Case
3.8 x 3.8
Electrical Characteristics
Characteristic
Center Frequency @ 25°C
Minimum Insertion Loss, 303.620 to 303.980 MHz
Sym
f C
IL MIN
Notes
1, 2, 3
1, 3
Minimum
Typical
303.825
1.6
Maximum
2.5
Units
MHz
dB
Passband Loss Relative to IL MIN :
303.595 to 304.025 MHz
303.535 to 304.085 MHz
1
1.0
1.5
3.0
6.0
dB
3 dB Bandwidth
BW 3
1, 3
500
650
800
kHz
Attenuation Relative to IL MIN :
10 to 260 MHz
260 to 297 MHz
45
35
55
45
297 to 302.5 MHz
304.8 to 320 MHz
320 to 400 MHz
400 to 1000 MHz
Frequency Temperature Coefficient
Frequency Aging, Absolute Value During the First Year
FTC
|fA|
1
11.5
14
37
45
15
20
40
55
0.032
≤ 10
dB
ppm/°C 2
ppm/yr
Impedance @ F C
Input Z IN =R IN llC IN
Output Z OUT =R OUT llC OUT
Z IN
Z OUT
1
11.7 K ? ll 1.8 pF
6.63 K ? ll 2.2 pF
Lid Symbolization (Y=year WW=week D=day of week)
675 // YWWS
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
9
500 Pieces/Reel
3000 Pieces/Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
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 and 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 3 dB frequencies.
Where noted specifications apply over the entire specified operating temperature range of -40 °C to +90 °C.
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.
Tape and Reel Standard Per ANSI/EIA 481.
This product complies with directive 2002/95/EC of the European Parlament and of the Council of 27 January 2003 on the restriction of the use of certain hazardous
substances in electrical and electronic equipment.
www.RFM.com E-mail: info@rfm.com
?2009 by RF Monolithics, Inc.
Page 1 of 2
RF3210D - 8/27/09
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相关代理商/技术参数 |
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|---|---|
| RF3210E | 功能描述:信号调节 303.825 MHz Narrowband Front End RoHS:否 制造商:EPCOS 产品:Duplexers 频率:782 MHz, 751 MHz 频率范围: 电压额定值: 带宽: 阻抗:50 Ohms 端接类型:SMD/SMT 封装 / 箱体:2.5 mm x 2 mm 工作温度范围:- 30 C to + 85 C 封装:Reel |
| RF3211-000 | 制造商:TE Connectivity 功能描述:FUSE 100A 16V 2PIN - Bag |
| RF3212-000 | 制造商:TE Connectivity 功能描述:FUSE 40A 16V POLYSWIT 2PIN - Bag |
| RF3220 | 制造商:RFMD 制造商全称:RF Micro Devices 功能描述:HIGH LINEARITY/DRIVER AMPLIFIER |
| RF3220_1 | 制造商:RFMD 制造商全称:RF Micro Devices 功能描述:HIGH LINEARITY/DRIVER AMPLIFIER |
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