DATA SHEET
SKY65364-11: 900 MHz Transmit/Receive Front-End Module
Applications
• Automated meter reading • Advanced metering infrastructure • ISM systems
Description
Skyworks SKY65364-11 is a high performance, transmit/receive (T/R) Front-End Module (FEM). The device provides a complete T/R chain with T/R switches. The device transmit chain features +30.5 dBm output power and a 40 percent Power Added Efficiency (PAE). The device receive chain features a Low Noise Amplifier (LNA) with a 1.7 dB Noise Figure (NF) and 16.0 dB gain. The cascaded NF and gain, taking into account the 0.5 dB insertion loss transmit/receive antenna switch, are 2.2 dB and 15.5 dB, respectively, which makes the SKY65364-11 ideal for medium power microwave links such as 900 MHz Industrial, Scientific, and Medical (ISM) band applications. The module also has a shut-down mode, PA bypass mode, and LNA bypass mode to minimize power consumption. The device is mounted in a 28-pin, 6 x 6 mm Multi-Chip Module (MCM) Surface-Mounted Technology (SMT) package, which allows for a highly manufacturable low-cost solution. The device package and pinout for the 28-pin MCM are shown in Figure 1. A block diagram of the SKY65364-11 is shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1.
Features
• Transmit output power > +30.5 dBm • High efficiency PA • Analog power control • Receive path NF <2.1 dB • PA bypass mode • LNA low current mode with external resistor • LNA bypass mode • Integrated control logic • Internal RF match and bias circuits • All RF ports internally DC blocked • Shutdown mode • Small footprint, MCM (28-pin, 6 x 6 mm) package (MSL3, 260 °C per JEDEC J-STD-020)
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Figure 1. SKY65364-11 Pinout – 28-Pin MCM (Top View)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 •
[email protected] • www.skyworksinc.com
201576B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • July 3, 2012 1
datasheet pdf - http://www.DataSheet4U.net/
DATA SHEET • SKY65364-11 T/R FRONT-END MODULE
Figure 2. SKY65364-11 Block Diagram Table 1. SKY65364-11 Signal Descriptions
Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 GND TR EN BYP VPC GND ANT GND GND RX1 GND GND RX2 RBIAS Name Ground Digital control input: transmit/receive mode Digital control input: shutdown mode Digital control input: receive bypass mode Transmit output power adjustment Ground Antenna switch common port. Internally matched to 50 Ω. Ground Ground Receive arm of antenna switch. Internally matched to 50 Ω. Ground Ground LNA and bypass switch output port. Internally matched to 50 Ω. LNA bias setting resistor Description Pin # 15 16
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Name GND VDD1 VCC_RX RXO GND TX GND GND VDD2 VCC_TX1 VCC_TX2 VCC_TX3 GND GND Ground
Description 3.3 V power supply 3.3 V power supply Receive output Ground Transmit path input port. Internally matched to 50 Ω. Ground Ground 3.6 V power supply 3.6 V power supply 3.6 V power supply 3.6 V power supply Ground Ground
17
18 19 20 21 22 23 24 25 26 27 28
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 •
[email protected] • www.skyworksinc.com
2 July 3, 2012 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • 201576B
datasheet pdf - http://www.DataSheet4U.net/
DATA SHEET • SKY65364-11 T/R FRONT-END MODULE
Technical Description
The SKY65364-11 consists of a complete T/R chain with T/R switches contained in the module. A Single-Pole Triple-Throw (SP3T) switch selects between the receive, transmit, and transmit bypass paths. The module has a shut-down mode to minimize power consumption. Three digital input pins (EN, TR, and BYP) are used to select between transmit, transmit bypass, receive, receive bypass, or shutdown mode. Transmit Path The transmit path contains a Power Amplifier (PA) optimized for saturated performance. The PA output is internally matched for optimum output power and efficiency into a 50 Ω load impedance. The PA output is passed through an harmonic filter before being fed through the SP3T switch. The PA input provides a good return loss into a 50 Ω source impedance. Transmit output power is controlled by the VPC pin, which is normally set to 2.25 V DC voltage. The nominal DC input impedance into the VPC pin is 50 kΩ.
Receive Path The receive path contains an LNA with bypass switch. The LNA impedance matching networks are internal to the module and have been optimized for a low NF while maintaining good return losses into a 50 Ω source and load impedance. The receive arm of the SP3T switch and the LNA input are connected to module pins to allow an external filter to be inserted into the receive path. LNA biasing can be independently lowered with an external bias resistor between the RBIAS pin and ground. Operation Mode Control The five SKY65364-11 operating modes are controlled by the three digital p.