原厂三伍微电子：GSR5712 WIFI标准11ac 兼容替代 SKY85712，RTC5639，KCT8522

GSR5712 WIFI标准11ac 兼容替代 SKY85712，RTC5639，KCT8522

Product Description

The GSR5712 is a highly integrated, 5 GHz front end

module (FEM) incorporating a 5 GHz single-pole,

three-way throw (SP3T) transmit/receive (T/R) switch, a

5 GHz low noise amplifier (LNA) with bypass, and a 5

GHz power amplifier (PA) intended for 802.11ax

applications and systems.

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

Quad Flat No Lead (QFN) package. Integrated die level

filtering for 2nd and 3rd harmonics as well as 2.4 GHz

rejection for DBDC operation are included. An integrated

power detector is included to provide closed-loop power

control within the system. The small form factor and

integrated matching minimizes layout area in the

application and greatly reduce the number of external

components.

The pin configuration and package are shown in Figure 1.

A functional block diagram is shown in Figure 2. Signal

pin assignments and functional pin descriptions are

provided in Table 1.

Key Features

l Integrated 802.11ax 5 GHz PA, LNA with bypass,

and T/R switch

l Fully matched input and output

l Pout = +18 dBm MCS11 -43dB EVM

l Pout = +22.5 dBm MCS9 -35 dB EVM

l Pout= +23.5 dBm MCS7 -30 dB EVM

l Transmit gain: 31 dB

l Receive gain: 13 dB

l 2 dB Noise Figure

l Small QFN (16 pin, 3 x 3 mm) Package

Applications

l 802.11ax networking and personal computing

systems

l WLAN enabled wireless video systems

l Access points

l Wireless Routers

l Residential Gateways