DATA SHEET SKY65344-21: 2.4 GHz Transmit/Receive Front-End Module with Integrated Low-Noise Amplifier Applications 2.4 GHz ISM band radios PA Tx Input ZigBee FEMs Differential RF Port Harmonic 1.8 V Bias IEEE 802.15.4 applications Filter 2 50 Single-Ended Port to Antenna Rx Output LNA 1 Differential T/R Switch RF Port Features 1.8 V Bias Transmit output power > +20 dBm S1293 Receive path NF < 2.2 dB Figure 1. SKY65344-21 Block Diagram High efficiency PA Programmable transmit power levels Description Configurable transmit/bidirectional paths The Skyworks SKY65344-21 is a high-efficiency front-end Internal switching and control circuits module (FEM) for ZigBee and other 2.4 GHz ISM band Internal RF match and bias circuits applications. The small, 6 x 6 mm Multi-Chip Module (MCM) contains a 2400 to 2500 MHz high-efficiency transmit path and a Single DC supply = 3.3 V low-loss bidirectional path. The bidirectional path can be used to Interfaces seamlessly with Ember EM250, EM260, and EM35x directly connect the antenna port to a directional RF port. ZigBee transceivers The transmit path consists of an harmonic filter and high All RF ports are internally DC blocked efficiency power amplifier (PA) capable of providing +20 dBm of Small footprint, MCM (20-pin, 6 x 6 mm) SMT package power at the antenna port. Also included is an internal balun to (MSL3, 260 C per JEDEC J-STD-020) allow use of differential input signals. The receive path contains a high isolation transmit/receive (T/R) TM Skyworks Green products are compliant with switch, low-noise amplifier (LNA), and balun for low-noise all applicable legislation and are halogen-free. differential output. For additional information, refer to Skyworks The device is mounted in a 20-pin, 6 x 6 mm MCM TM Denition of Green , document number surface-mount technology (SMT) package, which allows for a SQ040074. highly manufacturable low-cost solution. A block diagram of the SKY65344-21 is shown in Figure 1. The device package and pinout for the 20-pin MCM are shown in Figure 2. Signal pin assignments and functional pin descriptions are described in Table 1. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 201181G Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice September 15, 2017 1 DATA SHEET SKY65344-21: TRANSMIT/RECEIVE FRONT-END MODULE WITH LNA 20 19 18 17 1 16 BIAS1 GND 2 TX P 15 GND 3 14 TX N GND 4 13 BIAS2 ANT 5 12 RX P GND 6 RX N 11 GND 789 10 S1618 Figure 2. SKY65344-21 Pinout (Top View) 1 Table 1. SKY65344-21 Signal Descriptions Pin Name Description Pin Name Description 1 BIAS1 Transmit port bypass voltage 11 GND Ground 2 TX P Positive transmit input port 12 GND Ground 3 TX N Negative transmit input port 13 ANT Antenna port 4 BIAS2 Receive port bypass voltage 14 GND Ground 5 RX P Positive receive output port 15 GND Ground 6 RX N Negative receive output port 16 GND Ground 7 GND Ground 17 TX VCC Transmit DC supply, +3.3 V 8 SDN Shut down enable 18 GND Ground 9 RX VCC Receive DC supply, +3.3 V 19 N/C No connection 10 GND Ground 20 T R Transmit/receive control 1 The bottom ground pad must be connected to RF ground. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 September 15, 2017 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 201181G GND T R SDN N/C RX VCC GND GND TX VCC