RF3404D
•
•
•
•
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)
10
Pb
433.92 MHz
SAW Filter
The RF3404D is a low-loss, compact, and economical surface-acoustic-wave (SAW) filter designed to provide
front-end selectivity in 433.92 MHz receivers. Receiver designs using this filter include superhet with
10.7 MHz or 500 kHz IF, direct conversion and superregen. Typical applications of these receivers are
wireless remote-control and security devices operating in Europe under ETSI I-ETS 300 220.
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 at 25°C
Insertion Loss
Passband Ripple (Relative to IL
MIN
) Fc ±200kHz
3 dB Bandwidth
Rejection Attenuation: (relative to ILmin)
10 - 414 MHz
414 - 424 MHz
424 - 431 MHz
431 - 432 MHz
432 - 433 MHz
434.92 - 442 MHz
442 - 550 MHz
550 - 1000 MHz
FTC
Temperature
Frequency Aging
Impedance @ fc
Freq. Temp. Coefficient
Absolute Value during the First Year
Input Z
IN
= R
IN
llC
IN
Output Z
OUT
= R
OUT
llC
OUT
Lid Symbolization (Y=year WW=week S=shift)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
9
|fA|
Z
IN
Z
OUT
5
1
0.032
≤10
2853Ω // 1.66pf
2411Ω // 1.73pf
539 // YWWS
500 Pieces/Reel
3000 Pieces/Reel
1, 3
BW
3
Absolute Frequency
Sym
f
c
IL
MIN
Notes
1, 2, 3
1, 3
1, 3
1, 3
Minimum
Typical
433.92
1.6
1.2
Maximum
2.5
1.8
800
Units
MHz
dB
dB
kHz
500
50
45
30
18
12
11
35
50
600
55
50
34
22
17
14
38
55
dB
ppm/
°C
2
ppm/yr
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50
Ω
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 band-
width 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 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
2.
3.
4.
be calculated from: f = f
o
[1 - FTC (T
o
- T
c
)
2
].
5. 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.
6. The design, manufacturing process, and specifications of this device are subject to change.
7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
8. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
9. Tape and Reel Standard Per ANSI / EIA 481.
10. 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 hazadous substances in electrical and electronic equipment.
www.RFM.com
E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 1 of 5
RF3404D - 3/21/08
Absolute Maximum Ratings
Characteristic
Input Power Level
DC Voltage
Storage Temperature
Operable Temperature Range
Soldering Temperature (10 seconds / 5 cycles max.)
Value
10
12
-40 to +125
-40 to +125
260
Units
dBm
VDC
°C
°C
°C
Electrical Characteristics
Characteristic
Center Frequency at 25°C
Insertion Loss
Passband Ripple (Relative to IL
MIN
) Fc ±200kHz
3 dB Bandwidth
Rejection Attenuation: (relative to ILmin)
10 - 414 MHz
414 - 424 MHz
424 - 431 MHz
431 - 432 MHz
432 - 433 MHz
434.92 - 442 MHz
442 - 550 MHz
550 - 1000 MHz
Temperature
Frequency Aging
Impedance @ fc
Freq. Temp. Coefficient
Absolute Value during the First Year
Input Z
IN
= R
IN
llC
IN
Output Z
OUT
= R
OUT
llC
OUT
Lid Symbolization (Y=year WW=week S=shift)
Standard Reel Quantity
Reel Size 7 Inch
Reel Size 13 Inch
9
FTC
|fA|
Z
IN
Z
OUT
5
1
1, 3
BW
3
Absolute Frequency
Sym
f
c
IL
MIN
Notes
1, 2, 3
1, 3
1, 3
1, 3
Minimum
Typical
433.92
2.3
1.2
Maximum
3.0
2.0
800
Units
MHz
dB
dB
kHz
500
50
45
30
18
12
11
35
50
600
53
50
34
22
14
14
37
55
0.032
≤10
2853Ω // 1.66pf
2411Ω // 1.73pf
539 // YWWS
dB
ppm/°C
2
ppm/yr
500 Pieces/Reel
3000 Pieces/Reel
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
Unless noted otherwise, all measurements are made with the filter installed in the specified test fixture which is connected to a 50
Ω
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 band-
width 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 of -40°C to +125°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
2.
3.
4.
be calculated from: f = f
o
[1 - FTC (T
o
- T
c
)
2
].
5. 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.
6. The design, manufacturing process, and specifications of this device are subject to change.
7. One or more of the following U.S. Patents apply: 4,54,488, 4,616,197, and others pending.
8. All equipment designs utilizing this product must be approved by the appropriate government agency prior to manufacture or sale.
9. Tape and Reel Standard Per ANSI / EIA 481.
10. 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 hazadous substances in electrical and electronic equipment.
www.RFM.com
E-mail: info@rfm.com
©2008 by RF Monolithics, Inc.
Page 2 of 5
RF3404D - 3/21/08
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