Product Specification PE4257 50 SPDT Absorptive UltraCMOS Product Description DC 3.0 GHz RF Switch Features The PE4257 is a high-isolation UltraCMOS Switch designed for wireless applications, covering a broad frequency range 50 characteristic impedance from near DC up to 3000 MHz. This single-supply SPDT Integrated 50 0.25 watt terminations switch integrates a two-pin CMOS control interface. It also High input IP3 > +55 dBm provides low insertion loss with extremely low bias requirements while operating on a single 3-volt supply. In a High isolation 64 dB at 1000 MHz typical wireless application, the PE4257 provides Low insertion loss: typically 0.75 dB unprecedented isolation and integration. at 1000 MHz and 0.95 dB at 2000 MHz LV CMOS two-pin control The PE4257 is manufactured on Peregrines UltraCMOS process, a patented variation of silicon-on-insulator (SOI) Single +3 volt supply operation technology on a sapphire substrate, offering the performance Low current consumption: 8 A of GaAs with the economy and integration of conventional CMOS. Figure 1. Functional Diagram Figure 2. Package Type RFC 20-Lead 4x4 mm QFN 50 RF2 RF1 ESD ESD 50 50 CMOS Control Driver CTRL CTRL2 Table 1. Electrical Specifications +25 C, V = 3.0 V (Z = Z = 50 ) DD S L Parameter Condition Minimum Typical Maximum Units 1 Operating Frequency DC 3000 MHz 1000 MHz 0.75 0.95 Insertion Loss 2000 MHz 0.95 1.15 dB 3000 MHz 1.2 1.4 1000 MHz 61 64 Isolation Input to Output 2000 MHz 46 50 dB 3000 MHz 40 44 1000 MHz 57 63 Isolation Output to Output 2000 MHz 54 60 dB 3000 MHz 42 48 Input IP2 5 MHz - 1000 MHz 80 dBm Input IP3 5 MHz - 1000 MHz 50 55 dBm 2 Input 1dB Compression 1000 MHz 29 31 dBm Switching Time 50% CTRL to 10 / 90 RF 2 s 3 Video Feedthrough 5 MHz - 1000 MHz 15 mV pp Notes: 1. Device linearity will begin to degrade below 5 MHz. 2. Note Absolute Maximum ratings in Table 3. 3. Measured with a 1 ns risetime, 0/3 V pulse and 500 MHz bandwidth Document No. 70-0166-06 www.psemi.com 2004-2009 Peregrine Semiconductor Corp. All rights reserved. Page 1 of 7 Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: PE4257 Product Specification Figure 3. Pin Configuration (Top View) Table 3. Absolute Maximum Ratings Symbol Parameter/Condition Min Max Units V Power supply voltage -0.3 4.0 V DD V Voltage on any DC input -0.3 V + 0.3 V I DD RF power on RFC, RF1, RF2 P 33/24 dBm RF On Port/ Terminated Port GND 1 15 GND T Storage temperature -65 +150 C ST GND GND 2 14 GND T Operating temperature -40 +85 C OP ESD voltage RF1 3 13 RF2 V 1000 V ESD (Human Body Model) GND, RF1 Term. 4 12 GND, RF2 Term. Exceeding absolute maximum ratings may cause GND 5 11 GND permanent damage. Operation should be restricted to the limits in the Operating Ranges table. Operation between operating range maximum and absolute maximum for extended periods may reduce reliability. Table 4. Operating Ranges 25 C 4x4mm 20-Lead QFN Parameter Min Typ Max Unit Table 2. Pin Descriptions V Power Supply 2.7 3.0 3.3 V DD No. Name Description I Power Supply Current DD 8 20 A (V = 3V, V = 3V) DD CNTL 1 GND RF Ground Control Voltage High 0.70 V V DD 2 GND RF Ground 1 Control Voltage Low 0 0.30 V V DD 3 RF1 RF I/O 4 GND RF Ground Latch-Up Avoidance 5 GND RF Ground Unlike conventional CMOS devices, UltraCMOS 6 GND RF Ground devices are immune to latch-up. 7 GND RF Ground 1 8 RFC RF Common Electrostatic Discharge (ESD) Precautions 9 GND RF Ground When handling this UltraCMOS device, observe the 10 GND RF Ground same precautions that you would use with other ESD- 11 GND RF Ground sensitive devices. Although this device contains 12 GND RF Ground circuitry to protect it from damage due to ESD, 1 precautions should be taken to avoid exceeding the 13 RF2 RF I/O rating specified. 14 GND RF Ground 15 GND RF Ground Switching Frequency 2 16 CTRL2 Control 2 The PE4257 has a maximum 25 kHz switching rate 2 17 CTRL1 Control 1 when the internal negative voltage generator is used 3 18 VSS / GND Negative Supply Option (pin 18=GND). The rate at which the PE4257 can be 19 GND Digital Ground switched is only limited to the switching time if an 20 VDD Supply external -3 V supply is provided at (pin18=V ). SS Pad GND RF Ground Pad Table 5. Truth Table Notes: 1. RF pins 3, 8, and 13 must be at 0 VDC. The RF pins do not require DC blocking capacitors for proper operation if the CTRL1 CTRL2 RFC RF1 RFC RF2 0 VDC requirement is met. Low Low OFF OFF 2. Pins 16 and 17 are the CMOS controls that set the four Low High OFF ON operating states. High Low ON OFF 3. Connect pin 18 to GND to enable the negative voltage 1 1 generator. Connect pin 18 to V (-3 V) to bypass and SS High High N/A N/A disable internal -3 V supply generator. See paragraph Switching Frequency. Notes: 1. The operation of the PE4257 is not supported or characterized in the C1=V and C2=V state. DD DD 2004-2009 Peregrine Semiconductor Corp. All rights reserved. Document No. 70-0166-06 UltraCMOS RFIC Solutions Page 2 of 7 Logo updated under non-rev change. Peregrine products are protected under one or more of the following U.S. Patents: