5 GHz Front-End Module
Description
DATA SHEET
SE5012T: 5 GHz Front-End Module with Power Detector
Applications
5 GHz WLAN (IEEE 802.
11a/g/n) Access points, PCMCIA, PC cards
Features
5 GHz front-end module with PA, LNA, and T/R switch Integrated power amplifier enable pin (VEN) Buffered, temperature-compensated power detector 5 V or direct-to-battery operation 3% EVM, 64 QAM, 54 Mbps: +17 dBm @ 3.
3 V or +21 dBm
@5V 30 dB typical gain Lead free, halogen-free, ROHS compliant QFN
(16-pin, 3 mm 3 mm 0.
55 mm) package (MSL1, 260 C per JEDEC J-STD-020)
Skyworks GreenTM products are compliant with all applicable legislation and are halogen-free.
For additional information, refer to Skyworks Definition of GreenTM, document number SQ04–0074.
Description
The SE5012T is a 5 GHz front-end module offering high linear power for wireless LAN applications.
It incorporates a power detector for control of the output power.
The SE5012T offers a high level of integration for a simplified design, providing quicker time to market and higher application board production yield.
The device integrates the input match, inter-stage match, a temperature-compensated, load-insensitive power detector with 20 dB of dynamic range, a 3.
8 GHz notch filter, a T/R switch, and LNA.
For wireless LAN applications, the device meets the requirements of IEEE 802.
11a and delivers approximately +17 dBm of linear output power at VCC = 3.
3 V or 21 dBm at VCC = 5.
0 V.
The SE5012T integrates the reference voltage generator, allowing for a true 1.
8 V CMOS compatible digital EN (enable) function to turn the power amplifier on and off.
A block diagram of the SE5012T is shown in Figure 1.
The device package and pinout for the 16-pin QFN are shown in Figure 2.
Signal pin assignments and functional pin descriptions are described in Table 1.
VCC1, 2 VDD H/L Lin
C0 C1
EN TXIN
Bias, Enable, Detector Circuits
Match
Match and Filter
ANT
RX
Note: The TXIN has a DC short to ground.
An external blocking capacitor is recommended at th...
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