CB5309

DESCRIPTION

The CB5309 is a highly integrated, 2.4 GHz front-end module (FEM) incorporating a 2.4 GHz single-pole, double-throw (SPDT) 

transmit/receive (T/R) switch, a 2.4 GHz low-noise amplifier (LNA) with bypass, and a 2.4 GHz power amplifier (PA) intended 

for high-power 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 device is provided in a compact, 24-pin 3 x 5 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. 

FEATURES

 Integrated high-performance 2.4 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: 14 dB

 Output power: 22.5 dBm @ 1.8% EVM, VHT40,

MCS9, 5 V

 Output power: 23.5 dBm @ 3% EVM, HT40,

MCS7, 5 V

 Small QFN (24-pin, 3 x 5 mm) package (MSL3,

260℃ per JEDEC J-STD-020)

APPLICATIONS

 802.11ac networking and personal computing

systems

 PC cards, PCMCIA cards, mini - cards, and half

mini-cards

 WLAN-enabled wireless video systems

规格书CB5309_Datasheet_A3