- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383289 > LT5526 (Linear Technology Corporation) High Linearity, Low Power Downconverting Mixer PDF資料下載
參數(shù)資料
| 型號(hào)： | LT5526 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | High Linearity, Low Power Downconverting Mixer |
| 中文描述： | 高線性度，低功耗下變頻混頻器 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 224K |
| 代理商： | LT5526 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
10
LT5526
5526f
The external inductance is split in half (1.4nH), with each
half connected between the pin and C1 as shown in
Figure 4. The inductance may be realized with short, high
impedance printed transmission lines, as in Figure 3,
which provides a compact board layout and reduced
component count. A 1:1 transformer (T1 in Figure 3)
converts the 50
differential impedance to a 50
single-
ended input.
Table 1. RF Input Differential Impedance
FREQUENCY
(MHz)
IMPEDANCE
70
140
28.2 + j2.46
240
360
450
750
900
1500
1900
INPUT REFLECTION COEFFICIENT
MAG
28.0 + j1.34
0.282
0.280
28.4 + j3.30
0.278
28.4 + j4.75
0.282
28.6 + j5.42
0.280
29.9 + j7.39
0.268
31.3 + j8.41
0.251
38.3 + j17.9
0.237
42.5 + j24.6
0.269
ANGLE
176
172
169
164
162
155
150
112
92.2
An alternative method of driving the RF input is to use a
lumped-element balun configuration, as shown in Fig-
ure 5. This type of network may provide a more cost-
effective solution for narrow band applications (fractional
bandwidths < 30%). The actual balun is composed of
components C7, C9, L1 and L4, and their values may be
estimated as follows:
Figure 6. Input Return Loss with Lumped Element Baluns
Using Values from Table 2
APPLICATIU
W
U
U
2
3
R
RF
R
S
50
RF
+
LT5526
RF
–
C1
5526 F04
1/2 X
RF
1/2 X
RF
1/2 X
EXT
1/2 X
EXT
Figure 4. RF Input Impedance Matching Topology
2
3
R
RF
RF
+
LT5526
RF
–
C9
L1
C7
RF
IN
50
L4
5526 F05
1/2 X
RF
1/2 X
RF
L5
Figure 5. Schematic of Lumped Element Input Balun
L
L
R
R
C
C
R
R
S
RF
S
RF
1
4
7
9
1
=
=
=
=
ω
ω
Where R
S
is the source resistance (50
) and R
RF
is the
mixer input resistance from Table 1.
The computed values are only approximate, as they don’t
factor in the effects of X
RF
or the parasitics of the external
components. Actual component values for several fre-
quencies are listed in Table 2, and measured return loss
vs. frequency is plotted for each example in Figure 6.
FREQUENCY (MHz)
100
–25
R
–20
–15
–10
–5
0
300
500
700
900
5526 F06
1100
1300
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT5526EUF | High Linearity, Low Power Downconverting Mixer |
| LT6551 | 3.3V Triple and Quad Video Amplifiers |
| LT6550IMS | 3.3V Triple and Quad Video Amplifiers |
| LT6550 | LCD MOD 24X2 CHAR STN SILVER |
| LT6550CMS | 3.3V Triple and Quad Video Amplifiers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT5526EUF | 制造商:Linear Technology 功能描述:Up/Down Conv Mixer 5V 2GHz 16-Pin QFN EP |
| LT5526EUF#PBF | 功能描述:IC MIXER DOWNCONVERTER LP 16QFN RoHS:是 類別:RF/IF 和 RFID >> RF 混頻器 系列:LT5526 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- RF 型:W-CDMA 頻率:2.11GHz ~ 2.17GHz 混頻器數(shù)目:1 增益:17dB 噪音數(shù)據(jù):2.2dB 次要屬性:- 電流 - 電源:11.7mA 電源電壓:2.7 V ~ 3.3 V 包裝:托盤 封裝/外殼:12-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:12-QFN-EP（3x3） |
| LT5526EUF#TR | 制造商:Linear Technology 功能描述:Up/Down Conv Mixer 5V 2GHz 16-Pin QFN EP T/R |
| LT5526EUF#TRPBF | 功能描述:IC MIXER DOWNCONV LP 16QFN RoHS:是 類別:RF/IF 和 RFID >> RF 混頻器 系列:LT5526 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:100 系列:- RF 型:W-CDMA 頻率:2.11GHz ~ 2.17GHz 混頻器數(shù)目:1 增益:17dB 噪音數(shù)據(jù):2.2dB 次要屬性:- 電流 - 電源:11.7mA 電源電壓:2.7 V ~ 3.3 V 包裝:托盤 封裝/外殼:12-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:12-QFN-EP（3x3） |
| LT5526EUFPBF | 制造商:Linear Technology 功能描述:Downconverter Mixer,LT5526 2GHz QFN |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。