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参数资料
| 型号： | H3101B |
| 厂商： | Intersil Corporation |
| 英文描述： | Gilbert Cell UHF Transistor Array |
| 中文描述： | 吉尔伯特细胞超高频晶体管阵列 |
| 文件页数： | 10/12页 |
| 文件大小： | 905K |
| 代理商： | H3101B |
10
Design Example: Up Converter Mixer
Figure 12 shows an example of an up converter for cellular
applications.
Conclusion
The HFA3101 offers the designer a number of choices and
different applications as a powerful RF building block.
Although isolation is degraded from the theoretical results for
the cell due to the unbalanced, nondifferential input schemes
being used, a number of advantages can be taken into
consideration like cost, flexibility, low power and small outline
when deciding for a design.
TABLE 5. TYPICAL PARAMETERS FOR THE UP
CONVERTER EXAMPLE
PARAMETER
V
CC
= 3V,
I
BIAS
= 8mA
V
CC
= 4V,
I
BIAS
= 18mA
Power Gain, LO = -6dBm
3dB
5.5dBm
Power Gain, LO = 0dBm
4dB
7.2dB
RF Isolation, LO = 0dBm
15dBc
22dBc
LO Isolation, LO = 0dBm
28dBc
28dBc
FIGURE 12. UP CONVERTER
FIGURE 13. TYPICAL SPECTRUM PERFORMANCE OF UP CONVERTER
RF IN
0.01
390nH
900MHz
5.2nH
V
CC
3V
0.1
1
2
3
4
8
7
6
5
Q
5
Q
6
Q
1
Q
2
Q
3
Q
4
11p
0.01
75MHz
27
220
R
EE
R
EE
51
LO IN
V
CC
0.01
0.01
110
330
3V
825MHz
0.01
0.01
51
47-100pF
901
912
12RF
890
2LO - 10RF
OUTPUT WITHOUT EMITTER DEGENERATION
RF = 76MHz
LO = 825MHz
SPAN
50MHz
OUTPUT WITH EMITTER DEGENERATION R
EE
= 4.7
825
900
976
EXPANDED SPECTRUM R
EE
= 4.7
HFA3101
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