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参数资料
| 型号： | SKY77324 |
| 厂商： | SKYWORKS SOLUTIONS INC |
| 元件分类： | 放大器 |
| 英文描述： | iPAC PAM for Quad-Band GSM / GPRS |
| 中文描述： | 824 MHz - 849 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封装： | 6 X 6 MM, 1.2MM HEIGHT, LEAD FREE, LEADLESS PACKAGE-22 |
| 文件页数： | 9/23页 |
| 文件大小： | 1218K |
| 代理商： | SKY77324 |
iPAC PA MODULE FOR QUAD-BAND GSM / GPRS
DATA SHEET SKY77324
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
103123D Skyworks Proprietary and Confidential information. Products and product information are subject to change without notice. June 9, 2005
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components generated by switching transients. Ramping at high
rates will result in components that violate these spectral limits. A
ramp control signal must be applied to the VAPC pin, which results
in the desired power ramp response. The log relationship of VAPC
to POUT, along with the finite bandwidth and potential slew rate
limitations of the feedback loop, results in a complex mapping of
the ramp profile to the actual output power. Careful attention is
required in generating the input waveform which results in the
desired output response.
Figure 9 shows an example of the Skyworks PAM test setup for
evaluation of RF performance with various ramp profiles. The
user’s test setup may also include a TX/RX switch and a diplexer
in the output signal path. Alternatively, the SKY77324 PAM may
be installed in a phone board.
Figure 10 shows an example Skyworks software interface for the
setup in Figure 9 that can be used to create a recommended DAC
ramp profile. This profile is loaded from the computer into the
Skyworks emulator board during test. The software also handles
the required PAC Enable and TX_RX control signal timing.
Figure 11 and Figure 12 show the GSM and DCS/PCS calibration
screens, respectively, called up from the ramp profile interface in
Figure 10. These calibrations, done for each PAM, generate an
output power versus VAPC curve from sample data. Points from this
curve are combined with the ramp coefficients to generate the
DAC ramp during handset operation or test.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SKY77325 | 制造商:SKYWORKS 制造商全称:SKYWORKS 功能描述:iPAC⑩ PAM for Quad-Band GSM / GPRS |
| SKY77325-12 | 制造商:Skyworks Solutions Inc 功能描述:Part Number Only |
| SKY77328 | 制造商:SKYWORKS 制造商全称:SKYWORKS 功能描述:iPAC PAM for Quad-Band GSM/GPRS |
| SKY77331 | 制造商:SKYWORKS 制造商全称:SKYWORKS 功能描述:Power Amplifier Module with Integrated Coupler for Quad-Band GSM / EDGE |
| SKY77336 | 制造商:SKYWORKS 制造商全称:SKYWORKS 功能描述:Power Amplifier Module for Quad-Band GSM/GPRS/EDGE |
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