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參數資料
| 型號： | RO2135A |
| 廠商： | RF Monolithics, Inc. |
| 英文描述： | 319.508 MHz SAW Resonator |
| 中文描述： | 319.508兆赫聲表面波諧振器 |
| 文件頁數： | 1/2頁 |
| 文件大小： | 100K |
| 代理商： | RO2135A |
RF Monolithics, Inc.
RFM Europe
1999 by RF Monolithics, Inc. The stylized RFM logo are registered trademarks of RF Monolithics, Inc.
Phone: (972) 233-2903
Phone: 44 1963 251383
Fax: (972) 387-8148
Fax: 44 1963 251510
E-mail: info@rfm.com
http://www.rfm.com
RO2135A-060205
Page 1 of 2
Electrical Characteristics
Characteristic
Absolute Frequency
Tolerance from 319.508 MHz
Sym
f
C
f
C
IL
Q
U
Q
L
T
O
f
O
FTC
|fA|
Notes
Minimum
Typical
319.508
Maximum
Units
MHz
kHz
dB
Center Frequency at +25 °C
2, 3, 4, 5
±75
2.2
Insertion Loss
Quality Factor
2, 5, 6
1.1
Unloaded Q
50
Loaded Q
Turnover Temperature
Turnover Frequency
Frequency Temperature Coefficient
Absolute Value during the First Year
5, 6, 7
19,200
1,500
25
f
C
0.032
≤
10
Temperature Stability
6, 7, 8
10
40
°C
ppm/°C
2
ppm/yr
M
μH
fF
pF
nH
Frequency Aging
DC Insulation Resistance between Any Two Terminals
RF Equivalent RLC Model
1
5
1.0
8.768
Motional Resistance
Motional Inductance
Motional Capacitance
Transducer Static Capacitance
R
M
L
M
C
M
C
O
L
TEST
5, 7, 9
8.4
9.27
80.9629
3.06
3.5
69.85
176
5, 6, 9
2, 7
3.4
3.56
Test Fixture Shunt Inductance
Lid Symbolization (in Addition to to Lot and/or Date Code)
Ideal for 319 MHz Transmitters
Very Low Series Resistance
Quartz Stability
Surface-Mount, Ceramic Case with 21 mm
2
Footprint
Complies with Directive 2002/95/EC (RoHS)
The RO2135A is a one-port, surface-acoustic-wave (SAW) resonator in a surface-mount ceramic case. It
provides reliable, fundamental-mode, quartz frequency stabilization of fixed-frequency transmitters operating
at 319 MHz. Applications include remote-control and wireless security receivers operating in the USA under
FCC Part 15 and in Canada under DoC RSS-210.
Absolute Maximum Ratings
Rating
Value
+10
±30
-40 to +85
+250
Units
dBm
VDC
°C
°C
CW RF Power Dissipation
DC Voltage Between Terminals (Observe ESD Precautions)
Case Temperature
1
Soldering Temperature
319.508 MHz
SAW
Resonator
RO2135A
CAUTION: Electrostatic Sensitive Device. Observe precautions for handling.
Notes:
1.
2.
Lifetime (10 year) frequency aging.
The center frequency, f
C
, is measured at the minimum insertion loss point,
IL
MIN
, with the resonator in the 50
test system (VSWR
≤
1.2:1). The shunt
inductance, L
TEST
, is tuned for parallel resonance with C
O
at f
C
.
One or more of the following United States patents apply: 4,454,488 and
4,616,197.
Typically, equipment utilizing this device requires emissions testing and gov-
ernment approval, which is the responsibility of the equipment manufacturer.
Unless noted otherwise, case temperature T
C
= +25°C±2°C.
The design, manufacturing process, and specifications of this device are sub-
ject to change without notice.
Derived mathematically from one or more of the following directly measured
parameters: f
C
, IL, 3 dB bandwidth, f
C
versus T
C
, and C
O
.
Turnover temperature, T
O
, is the temperature of maximum (or turnover) fre-
quency, f
O
. The nominal frequency at any case temperature, T
C
, may be cal-
culated from: f = f
O
[1 - FTC (T
O
-T
C
)
2
].
3.
4.
5.
6.
7.
8.
9.
This equivalent RLC model approximates resonator performance near the
resonant frequency and is provided for reference only. The capacitance C
O
is
the static (nonmotional) capacitance between the two terminals measured at
low frequency (10 MHz) with a capacitance meter. The measurement
includes parasitic capacitance with”NC” pads unconnected. Case parasitic
capacitance is approximately 0.05 pF. Transducer parallel capacitance can
by calculated as: C
P
≈
C
O
- 0.05 pF.
SM-2 Case
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相關代理商/技術參數 |
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| RO2136A | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:432.920 MHz SAW Resonator |
| RO2138A | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:407.300 MHz SAW Resonator |
| RO2144A | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:916.5 MHz SAW Resonator |
| RO2144A-1 | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:916.5 MHz SAW Resonator |
| RO2144A-2 | 制造商:RFM 制造商全稱:RF Monolithics, Inc 功能描述:916.5 MHz SAW Resonator |
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