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3.3 FEM with integrated Power Amplifier Module (RF7182)
3.3 FEM with integrated Power Amplifier Module (RF7182)
3.3.1 Internal Block Diagram
3.3.1 Internal Block Diagram
1
GND
RFIN HB
2
3
GND
4
RFIN LB
GND
5
GND
6
3.3.2 General Description
The RF7182 is a quad-band GSM/GPRS Class 12 compliant transmit module (GSM850 / EGSM900 /
DCS1800 / PCS1900) with two symmetrical receive ports. This transmit module builds upon RFMD's leading
power amplifier with PowerStar® integrated power control technology, pHEMT switch technology, and
integrated transmit filtering for best-in-class harmonic performance. The results are high performance, a
reduced solution size, and ease of implementation. The device is designed for use as the final
portion of the transmitter section in aGSM850 / EGSM900 / DCS1800 / PCS1900 handset and eliminates
the need for PA-to-antenna switch module matching network.
The RF7182 features RFMD's latest integrated power-flattening circuit, which significantly reduces current and
power variation into load mismatch. The RF7182 also integrates an ESD filter to provide excellent ESD
protection at the antenna port. TheRF7182 is designed to provide maximum efficiency at rated POUT.
LGE Internal Use Only
LGE Internal Use Only
22
21
20
Amplifier
CMOS Controller
7
8
9
Figure. 3.3.1 RF7182 FUNCTIONAL BLOCK DIAGRAM
Figure. 3.3.1 RF7182 FUNCTIONAL BLOCK DIAGRAM
19
18
17
Protection
Switch
10
12
11
Copyright © 2007 LG Electronics. Inc. All right reserved.
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Only for training and service purposes
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Copyright © 2013 LG Electronics. Inc. All right reserved.
3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
16
NC
ESD
15
ANTENNA
14
GND
13
GND
Only for training and service purposes
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