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| 型号： | AD8344 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Active Receive Mixer 400 MHz to 1.2 GHz |
| 中文描述： | 有源接收混频器400 MHz到1.2 GHz的 |
| 文件页数： | 17/20页 |
| 文件大小： | 429K |
| 代理商： | AD8344 |
AD8344
Rev. 0 | Page 17 of 20
25
–5
0
5
10
15
20
10
100
1000
0
IF LOADING (
)
2
MEASURED
MODELED
15
0
15
12
9
6
3
0
3
6
9
12
10
15
20
25
30
35
40
45
50
0
IF FREQUENCY (MHz)
C
I
Figure 45. Conversion Gain vs. IF Loading
Figure 46. Conversion Gain, Input IP3, and P1dB vs.
IF Frequency, F
RF
= 450 MHz
LOW IF FREQUENCY OPERATION
The AD8344 may be used down to arbitrarily low IF frequen-
cies. The conversion gain, noise, and linearity characteristics
remain quite flat as IF frequency is reduced, as indicated in
Figure 46 and Figure 47. Larger value pull-up inductors need to
be used at the lower IF frequencies. A 1 μH choke inductor
would present a common-mode loading impedance of 63 at
an IF frequency of 10 MHz, severely loading down the mixer
outputs, reducing conversion gain, and sacrificing output power.
At low IF frequencies, choke inductors of several hundred μH
should be used for biasing the IF outputs.
8
7
2
28.0
24.5
21.0
17.5
14.0
10.5
7.0
3
4
5
6
10
15
20
25
30
35
40
45
50
0
IF FREQUENCY (MHz)
C
I
Figure 47. Conversion Gain, Input IP3, and P1dB vs.
IF Frequency, F
RF
= 890 MHz
相关PDF资料 |
PDF描述 |
|---|---|
| AD8344-EVAL | Active Receive Mixer 400 MHz to 1.2 GHz |
| AD8344ACPZ-REEL7 | Active Receive Mixer 400 MHz to 1.2 GHz |
| AD8344ACPZ-WP | Active Receive Mixer 400 MHz to 1.2 GHz |
| AD8345ARE-REEL | 250 MHz.1000 MHz Quadrature Modulator |
| AD8345ARE-REEL7 | 250 MHz.1000 MHz Quadrature Modulator |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD8344ACPZ | 制造商:Analog Devices 功能描述:UP/DOWN CONV MIXER 5V 1.2GHZ 16LFCSP EP - Tape and Reel 制造商:Analog Devices 功能描述:IC SM RF MIXER 800MHZ |
| AD8344ACPZ | 制造商:Analog Devices 功能描述:IC RF MIXER 800MHZ SMD LFCSP-16 |
| AD8344ACPZ-REEL7 | 功能描述:IC MIXER 400MHZ-1.2GHZ 16-LFCSP RoHS:是 类别:RF/IF 和 RFID >> RF 混频器 系列:AD8344 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:100 系列:- RF 型:W-CDMA 频率:2.11GHz ~ 2.17GHz 混频器数目:1 增益:17dB 噪音数据:2.2dB 次要属性:- 电流 - 电源:11.7mA 电源电压:2.7 V ~ 3.3 V 包装:托盘 封装/外壳:12-VFQFN 裸露焊盘 供应商设备封装:12-QFN-EP（3x3） |
| AD8344ACPZ-WP | 制造商:Analog Devices 功能描述:UP/DOWN CONV MIXER 5V 1.2GHZ 16LFCSP EP - Waffle Pack |
| AD8344-EVAL | 制造商:Analog Devices 功能描述:Evaluation Kit For Active Receive Mixer 制造商:Analog Devices 功能描述:EVAL KIT FOR ACTV RECEIVE MIXER - Bulk |
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