DATA SHEET SKY65366-21: 400 MHz Transmit/Receive Front-End Module Applications Digital Control Control Automated meter reading Logic VPC Advanced metering infrastructure Matching PA Network ISM systems Harmonic TX Filter Range extender ANT Matching Matching Harmonic LNA Features RX0 Network Network Filter Bias Transmit output power: +30.2 dBm High-efficiency PA 203146D-001 Analog power control RX1 RX2 RBIAS Receive path NF < 2.2 dB Figure 1. SKY65366-21 Block Diagram PA bypass mode LNA low current mode with external resistor Description LNA bypass mode The SKY65366-21 is a high-performance, transmit/receive (T/R) Integrated control logic range extender. The device provides a complete T/R chain with Internal RF match and bias circuits T/R switches. All RF ports internally DC blocked The device transmit chain features +30.2 dBm output. The device Shutdown mode receive chain features a low-noise amplifier (LNA) with a 1.8 dB noise figure (NF) and 21 dB gain. The cascaded NF and gain, Small footprint, MCM (28-pin, 6 x 6 mm) package taking into account the 0.4 dB insertion loss transmit/receive (MSL3, 260 C per JEDEC J-STD-020) antenna switch, are 2.2 dB and 20.6 dB, respectively. The module also has a shutdown mode, PA bypass mode, and TM Skyworks Green products are compliant with LNA bypass mode to minimize power consumption. all applicable legislation and are halogen-free. The device is mounted in a 28-pin, 6 x 6 mm Multi-Chip Module For additional information, refer to Skyworks TM (MCM) surface-mount technology (SMT) package, which allows Denition of Green , document number for a highly manufacturable low-cost solution. SQ040074. A block diagram of the SKY65366-21 is shown in Figure 1. The device package and pinout for the 28-pin MCM are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 203146E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice October 24, 2020 1 PRELIMINARY DATA SHEET SKY65366-11 T/R RANGE EXTENDER GND 1 22 GND 28 27 26 25 24 23 2 21 TR GND 3 20 EN TX BYP 4 19 GND 5 18 VPC RXO GND 6 17 VCC RX 7 16 ANT VDD1 8 9 10 11 12 13 14 15 GND GND 203146D-002 Figure 2. SKY65366-21 Pinout (Top View) Table 1. SKY65366-21 Signal Descriptions Pin Name Description Pin Name Description 1 GND Ground 15 GND Ground 2 TR Digital control input: transmit/receive mode 16 VDD1 3.3 V power supply 3 EN Digital control input: shutdown mode 17 VCC RX 3.3 V power supply 4 BYP Digital control input: receive bypass mode 18 RXO Receive output 5 VPC Transmit output power adjustment 19 GND Ground 6 GND Ground 20 TX Transmit path input port. Internally matched to 50 . 7 ANT Antenna switch common port. Internally matched to 50 . 21 GND Ground 8 GND Ground 22 GND Ground 9 GND Ground 23 VDD2 3.9 V power supply 10 RX1 Receive arm of antenna switch. Internally matched to 50 . 24 VCC TX1 3.9 V power supply 11 GND Ground 25 VCC TX2 3.9 V power supply 12 GND Ground 26 VCC TX3 3.9 V power supply 13 RX2 LNA and bypass switch output port. Internally matched to 50 . 27 GND Ground 14 RBIAS LNA bias setting resistor 28 GND Ground Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 203146E Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice October 24, 2020 2 GND GND RX1 GND GND VCC TX3 GND VCC TX2 RX2 VCC TX1 RBIAS VDD2