HFA3101B Intersil, HFA3101B Datasheet - Page 10

• Manufacturer Part Number: HFA3101B
• Description: IC TRANSISTOR ARRAY UHF 8-SOIC
• Manufacturer: Intersil

Specifications of HFA3101B

• Frequency: 0Hz ~ 10GHz
• Number Of Mixers: 1
• Noise Figure: 1.7dB
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Voltage - Supply: -
• Rf Type: -
• Gain: -
• Secondary Attributes: -

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.
OUTPUT WITHOUT EMITTER DEGENERATION
RF = 76MHz
LO = 825MHz
2LO - 10RF
890
901
825MHz
12RF
912
10
FIGURE 13. TYPICAL SPECTRUM PERFORMANCE OF UP CONVERTER
0.01
0.01
0.01
V
LO IN
CC
SPAN
50MHz
3V
0.01
110
330
220
OUTPUT WITH EMITTER DEGENERATION R
51
FIGURE 12. UP CONVERTER
47-100pF
Q
R
1
EE
HFA3101
Q
Q
5
2
27
Q
Q
3
R
6
EE
Q
Power Gain, LO = -6dBm
Power Gain, LO = 0dBm
RF Isolation, LO = 0dBm
LO Isolation, LO = 0dBm
4
390nH
TABLE 5. TYPICAL PARAMETERS FOR THE UP
0.01
51
5.2nH
PARAMETER
EE
0.1
= 4.7Ω
0.01
CONVERTER EXAMPLE
V
CC
3V
11p
RF IN
EXPANDED SPECTRUM R
900MHz
75MHz
825
I
BIAS
V
CC
15dBc
28dBc
3dB
4dB
= 8mA
= 3V,
900
EE
I
BIAS
V
= 4.7Ω
976
5.5dBm
CC
22dBc
28dBc
7.2dB
= 18mA
= 4V,