睿希电子（深圳）有限公司

Features   SKY85703-11

• Integrated high performance 5 GHz PA, LNA with bypass, and

T/R switch

• Fully-matched input and output

• Integrated power detector and directional coupler

• Transmit gain: 30 dB

• Receive gain: 12 dB

• Output power: +16 dBm @ 1.8% EVM, HT80, MCS9

• Output power: +17 dBm @ 3% EVM, HT40, MCS7 • Small, QFN (16-pin, 3 x 3 mm) package (MSL3, 260 °C per

JEDEC J-STD-020)

SKY85703-11

Description

The SKY85703-11 is a highly-integrated, 5 GHz Front-End Module

(FEM) incorporating a 5 GHz Single-Pole, Double-Throw (SPDT)

transmit/receive (T/R) switch, a 5 GHz Low-Noise Amplifier (LNA)

with bypass, and a 5 GHz Power Amplifier (PA) intended for

mobile/portable 802.11ac applications and systems.

The LNA and PA disable functions ensure low leakage current in

off mode. An integrated power detector is included to provide

closed-loop power control within the system. The power detector

also acts as a directional coupler to enhance detector accuracy

over temperature and load mismatches.

The device is provided in a compact, 16-pin 3 x 3 mm Quad Flat

No-Lead (QFN) package. A functional block diagram is shown in

Figure 1. The pin configuration and package are shown in

Figure 2. Signal pin assignments and functional pin descriptions

are provided in Table 1.

SKY85703-11