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參數(shù)資料
| 型號(hào)： | CX65104-11 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 700 - 1000 MHz Linear Power Amplifier |
| 中文描述： | 700 - 1000 MHz的線性功率放大器 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大?。?/td> | 166K |
| 代理商： | CX65104-11 |
DATA SHEET CX65104
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
July 15, 2004 Skyworks Proprietary and Confidential Information Products and Product Information are Subject to Change Without Notice 101475F
6
A
B
A
B
B
A
1.75 ± 0.10
8
o
Max
5
o
Max
1.50 ± 0.25
2.00 ± 0.10
4.00 ± 0.10
12.00 ± 0.10
16.00 +0.30/-0.10
7.50 ± 0.10
0.318 ± 0.013
8.89 ± 0.10
8.88 ± 0.10
2.14 ± 0.10
1.50± 0.10
Pin #1
C1221
Notes:
1. Carrier tape: black conductive polycarbonate
or polystyrene.
2. Cover tape material: transparent conductive PSA.
3. All measurements are in millimeters.
Figure 10. CX65104 8-Pin LCC Tape and Reel Dimensions
Evaluation Board Description
Skyworks CX65104 Evaluation Board is used to test the
performance of the CX65104 PA. The Evaluation Board schematic
diagram is shown in Figure 11. The schematic shows the basic
design of the board for the 700 to 1000 MHz range. Figure 12
provides the Evaluation Board assembly diagram. Figure 13
provides the Evaluation Board layer detail.
Circuit Design Considerations
The following design considerations are general in nature and
must be followed regardless of final use or configuration
1. Paths to ground should be made as short as possible.
2. The ground pad of the CX65104 PA has special electrical and
thermal grounding requirements. This pad is the main thermal
conduit for heat dissipation. Since the circuit board acts as the
heat sink, it must shunt as much heat as possible from the
amplifier. As such, design the connection to the ground pad to
dissipate the maximum wattage produced to the circuit board.
Multiple vias to the grounding layer are required.
3. Two external output bypass capacitors (0.01
μ
F, and 4.7
μ
F)
are required on the VCC1 (pin 8) supply input. The same three
capacitors are also required on the VCC2 (pin 4) supply input.
All three capacitors should be placed in parallel between the
supply line and ground. See Figure 11 for a detailed diagram.
4. VCC1 (pin 8) and VCC2 (pin 4) may be connected together at
the supply.
5. The RF output includes an onboard internal DC blocking
capacitor. All impedance matching is provided internally.
Therefore, the application only needs to provide a good 50
load.
Testing Procedure
Use the following procedure to set up the CX65104 Evaluation
Board for testing. Refer to Figure 14 for guidance:
1. Connect a +5.0 V supply voltage to VCC1 and VCC2. If
available, enable the current limiting function of the power
supply to 1.0 A.
2. Connect a signal generator to the RF signal input port. Set it to
the desired RF frequency at a power level of 3 dBm or less to
the Evaluation Board but do NOT enable the RF signal.
3. Connect a spectrum analyzer to the RF signal output port.
4. Enable the power supply.
5. Enable the RF signal.
6. Take measurements.
CAUTION
: If the input signal exceeds the rated power, the
CX65104 Evaluation Board can be permanently
damaged.
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