參數(shù)資料
型號(hào)： HSMS-286R
英文描述： Surface Mount RF Schottky Detector Diodes in SOT-363(表貼型射頻肖特基檢測(cè)二極管（SOT-363封裝）)
中文描述： 表面貼裝RF肖特基二極管檢測(cè)器采用SOT - 363（表貼型射頻肖特基檢測(cè)二極管（采用SOT - 363封裝））
文件頁(yè)數(shù)： 8/12頁(yè)
文件大?。?/td> 96K
代理商： HSMS-286R
8
Note that the ground strip which
runs from the two via holes at the
top to the one at the bottom not
only provides ground potential for
leads 2 and 5, but it isolates the
two input/output lines.
Tests were run on the HSMS-282K
and the conventional HSMS-2825
pair, which compare with each
other in the same way as the
HSMS-2865 and HSMS-286K, with
the results shown in Figure 18.
-35
-25
-15
-5
15
5
37 dB
47 dB
O
INPUT POWER (dBm)
0.5
1000
100
10
1
5000
Frequency = 900 MHz
HSMS-2825
RV
out
response
HSMS-282K
ref. diode
Figure 18. Comparing HSMS-282K
with HSMS-2825.
The line marked “RF diode, V
out
”
is the transfer curve for the
detector diode—both the
HSMS-2825 and the HSMS-282K
exhibited the same output voltage.
The data were taken over the
50 dB dynamic range shown. To
the right is the output voltage
(transfer) curve for the reference
diode of the HSMS-2825, showing
37 dB of isolation. To the right of
that is the output voltage due to
RF leakage for the reference diode
of the HSMS-282K, demonstrating
10 dB higher isolation than the
conventional part.
Such differential detector circuits
generally use single diode
detectors, either series or shunt
mounted diodes. The voltage
doubler (HP Application Note
956-4) offers the advantage of
twice the output voltage for a
given input power. The two
concepts can be combined into
the differential voltage doubler, as
shown in Figure 19.
matching
network
bias
differential
amplifier
Figure 19. Differential Voltage
Doubler, HSMS-286P.
Here, all four diodes of the
HSMS-286P are matched in their
V
f
characteristics, because they
came from adjacent sites on the
wafer. A similar circuit can be
realized using the HSMS-286R ring
quad.
Other configurations of six lead
Schottky products can be used to
solve circuit design problems
while saving space and cost.
Thermal Considerations
The obvious advantage of the
SOT-363 over the SOT-143 is
combination of smaller size and
two extra leads. However, the
copper leadframe in the SOT-363
has a thermal conductivity four
times higher than the Alloy 42
leadframe of the SOT-143, which
enables it to dissipate more
power.
The maximum junction tempera-
ture for these three families of
Schottky diodes is 150
°
C under all
operating conditions. The follow-
ing equation, equation 1, applies
to the thermal analysis of diodes:
T
j
= (V
f
I
f
+ P
RF
)
θ
jc
+ T
a
E quation ( 1) .
where
T
j
= junction temperature
T
a
= diode case temperature
θ
jc
= thermal resistance
V
f
I
f
= DC power dissipated
P
RF
= RF power dissipated
Note that
θ
jc
, the thermal resis-
tance from diode junction to the
foot of the leads, is the sum of two
component resistances,
θ
jc
=
θ
pkg
+
θ
chip
E quation ( 2) .
Package thermal resistance for
the SOT-363 package is approxi-
mately 100
°
C/W, and the chip
thermal resistance for these three
families of diodes is approxi-
mately 40
°
C/W. The designer will
have to add in the thermal
resistance from diode case to
ambient—a poor choice of circuit
board material or heat sink design
can make this number very high.
相關(guān)PDF資料
PDF描述
HSMS-8205 Surface Mount Microwave Schottky Mixer Diodes(表貼型微波肖特基混頻二極管（成對(duì)分離）)
HSMS-8207 Surface Mount Microwave Schottky Mixer Diodes(表貼型微波肖特基混頻二極管（四路振鈴）)
HSMS-8101 Surface Mount Microwave Schottky Mixer Diodes(表貼型微波肖特基混頻二極管（單路）)
HSMS-8202 Surface Mount Microwave Schottky Mixer Diodes(表貼型微波肖特基混頻二極管（系列成對(duì)）)
HSMS-8209 Surface Mount Microwave Schottky Mixer Diodes(表貼型微波肖特基混頻二極管（四路正交）)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HSMS286R-BLK 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:BRIDGE/RING DIODE ARRAY|TSOP
HSMS-286R-BLKG 功能描述:射頻檢測(cè)器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel
HSMS286R-TR1 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:BRIDGE/RING DIODE ARRAY|TSOP
HSMS-286R-TR1G 功能描述:射頻檢測(cè)器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 配置: 頻率范圍:650 MHz to 3 GHz 最大二極管電容: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SC-88 封裝:Reel
HSMS-286R-TR2G 功能描述:肖特基二極管與整流器 4 VBR 0.3 pF RoHS:否 制造商:Skyworks Solutions, Inc. 產(chǎn)品:Schottky Diodes 峰值反向電壓:2 V 正向連續(xù)電流:50 mA 最大浪涌電流: 配置:Crossover Quad 恢復(fù)時(shí)間: 正向電壓下降:370 mV 最大反向漏泄電流: 最大功率耗散:75 mW 工作溫度范圍:- 65 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-143 封裝:Reel
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*