document no. 70-0350-02 www.psemi.com page 1 of 9 ?2010-2012 peregrine semiconductor corp. all rights reserved. product description the PE42551 rf switch is designed to support the requirements of the test equipment and ate market. this broadband general purpose switch maintains excellent rf performance and linearity from 9 khz through 6000 mhz. the PE42551 integrates on-board cmos control logic driven by a single-pin, low voltage cmos control input. it also has a logic select pin which enables changing the logic definition of the control pin. additional features include a novel user defined logic table, enabled by the on-board cmos circuitry. the PE42551 also exhibits outstanding isolation that approaches 21 db at 6000 mhz and is offered in a small 4x4x0.85 mm qfn package. the PE42551 is manufactured on peregrine?s ultracmos ? process, a patented variation of silicon-on-insulator (soi) technology on a sapphire substrate, offering the performance of gaas with the economy and integration of conventional cmos. product specification spdt ultracmos ? rf switch 9 khz - 6000 mhz figure 1. functional diagram PE42551 features ? harp?-technology ?enhanced ? eliminates gate and phase lag ? no insertion loss nor phase drift ? fast settling time ? high linearity 50 dbm iip3 ? low insertion loss: 0.65 db at 3000 mhz, 0.90 db at 6000 mhz ? high isolation of 29 db at 3000 mhz, 21 db at 6000 mhz ? high power 1 db compression point of +34 dbm ? esd: 500 v hbm ? single-pin 2.75v cmos logic control ? logic select pin to change definition of logic control ? reflective switch design ? 20-lead 4x4x0.85 mm qfn package 20-lead 4x4x0.85 mm qfn figure 2. package type table 1. electrical specifications @ +25c, v dd = 2.75v (z s = z l = 50 ? ) parameter conditions typical units operation frequency mhz insertion loss 9 khz 3000 mhz 6000 mhz 0.55 0.65 0.90 db db db isolation ? rf1 to rf2 3000 mhz 6000 mhz 29 21 db db return loss rf1, rf2 and rfc 3000 mhz 6000 mhz 18 14 db db switching time 50% ctrl to 0.1 db final value 7 s input 1 db compression 6000 mhz 34 dbm input ip3 6000 mhz +50 dbm min 9 khz 28 14 32 max 6000 0.65 0.75 peregrine specification 71-0065 note: device linearity will begin to degrade below 10 mhz.
product specification PE42551 page 2 of 9 ?2010-2012 peregrine semiconductor corp. all rights reserved. document no. 70-0350-02 ultracmos ? rfic solutions table 3. absolute maximum ratings figure 3. pin configuration (top view) note: 1. human body model (hbm, mil_std 883 method 3015.7) table 2. pin descriptions notes: 1. all rf pins must be held at 0 vdc or the dc must be blocked with an external series capacitor 2. use v ss (pin 13, v ss = -v dd ) to bypass and disable internal negative voltage generator. connect v ss (pin 13) to gnd (v ss = 0v) to enable internal negative voltage generator. pin no. pin name description 13 rf2 rf2 port. 1 1, 2, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 19 gnd ground connection. traces should be physically short and connected to the ground plane. this pin is connected to the exposed solder pad that also must be soldered to the ground plane for best performance. 3 rf1 rf1 port. 1 16 ctrl cmos level (see table 5 ) 8 rfc common rf port for switch 1 17 ls logic select - used to determine the definition for the ctrl pin (see table 5 ) 18 v ss negative power supply. apply nominal -2.75v supply 2 20 v dd nominal 2.75v supply connection paddle gnd exposed ground paddle symbol parameter/conditions min max units v dd power supply voltage -0.3 4.0 v v i voltage on any input except for ctrl and ls inputs -0.3 v dd + 0.3 v v ctrl voltage on ctrl input 4.0 v v ls voltage on ls input 4.0 v t st storage temperature range -65 150 c t op operating temperature range -40 85 c p in input power 50 ? : 9 khz 4 mhz 4 mhz 6 ghz fig. 4 31 dbm dbm v esd esd voltage hbm 1 500 v exceeding absolute maximum ratings may cause 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. electrostatic discharge (esd) precautions when handling this ultracmos ? device, observe the same precautions that you would use with other esd-sensitive devices. although this device contains circuitry to protect it from damage due to esd, precautions should be taken to avoid exceeding the rating specified. moisture sensitivity level the moisture sensitivity level rating for the PE42551 in the 20-lead 4x4x0.85 mm qfn package is msl1. latch-up avoidance unlike conventional cmos devices, ultracmos ? devices are immune to latch-up.
product specification PE42551 page 3 of 9 document no. 70-0350-02 www.psemi.com ?2010-2012 peregrine semiconductor corp. all rights reserved. table 4. operating specifications parameter min typ max units v dd positive power supply voltage 2.5 2.75 3.0 v v dd negative power supply voltage -2.5 -2.75 -3.0 v i dd power supply current (v dd = 3v, v cntl = 3v) 20 a control voltage high 0.7xv dd v control voltage low 0.3xv dd v rf power in 50 ? : 9 khz 4 mhz 4 mhz 6 ghz fig. 4 31 dbm dbm ls ctrl rfc-rf1 rfc-rf2 0 0 off on 0 1 on off 1 0 on off 1 1 off on table 5. control logic truth table spurious performance the typical spurious performance of the PE42551 is -116 dbm when v ss = 0v. if further improvement is desired, the internal negative voltage generator can be disabled by externally applying a negative voltage to the v ss pin such that v ss = -v dd . logic select (ls) the logic select feature is used to determine the definition for the ctrl pin. switching frequency the PE42551 has a maximum 25 khz switching rate when the internal negative voltage generator is used. in the event a customer applies v ss external (-v dd ) to pin 18, the switching rate is limited to the reciprocal of the switching time in table 1 . figure 4. power handling vs frequency and vdd
product specification PE42551 page 4 of 9 document no. 70-0350-02 www.psemi.com ?2010-2012 peregrine semiconductor corp. all rights reserved. 50 ohm t-line 50 ohm t-line 50 ohm t-line 50 ohm t-line j2 smasm j2 smasm 1 2 j5 smasm j5 smasm 1 2 r1 1m r1 1m j6 header 7x2 j6 header 7x2 1 1 3 3 5 5 7 7 2 2 4 4 6 6 8 8 10 10 12 12 14 14 13 13 9 9 11 11 r2 1m r2 1m j3 smasm j3 smasm 1 2 j4 smasm j4 smasm 1 2 u1 PE42551 gnd 7 gnd 2 rf1 3 gnd 4 gnd 5 gnd 6 gnd 1 rfc 8 gnd 9 gnd 10 gnd 12 gnd 11 rf2 13 gnd 14 gnd 15 c2 16 c1 17 vss/gnd 18 gnd 19 vdd 20 j1 smasm j1 smasm 1 2 c3 dni c3 dni c2 dni c2 dni c1 dni c1 dni evaluation kit the spdt switch evaluation kit board was designed to ease customer evaluation of the PE42551 spdt switch. the rf common port is connected through a 50 ? transmission line to j2. port 1 and port 2 are connected through 50 ? transmission lines to j1 and j3. a through transmission line connects sma connectors j4 and j5. this transmission line can be used to estimate the loss of the pcb over the environmental conditions being evaluated. the board is constructed of a two metal layer fr4 material with a total thickness of 0.032?. the transmission lines were designed using a coplanar waveguide with ground plane (28 mil core, 47.6 mil width, 30 mil gap). good rf layout and prudent use of vias is critical for obtaining the specified isolation performance for the device shown in this datasheet. j6 provides a means for controlling dc and digital inputs to the device. the provided jumpers short the package pin to ground for logic low. when the jumper is removed, the pin is pulled up to v dd for logic high. when the jumper is in place, 3 a of current will flow through the 1m ? pull up resistor. this extra current should not be attributed to the requirements of the device. figure 5. evaluation board layouts figure 6. evaluation board schematic peregrine specification 102-0198 peregrine specification 101-0151
product specification PE42551 page 5 of 9 ?2010-2012 peregrine semiconductor corp. all rights reserved. document no. 70-0350-02 ultracmos ? rfic solutions typical performance data figure 9. insertion loss: rfc-rf2 @ 25c figure 8. insertion loss: rfc-rf1@ 2.75v figure 7. insertion loss: rfc-rf1@ 25c figure 10. insertion loss: rfc-rf2 @ 2.75v
product specification PE42551 page 6 of 9 document no. 70-0350-02 www.psemi.com ?2010-2012 peregrine semiconductor corp. all rights reserved. typical performance data figure 13. isolation: rfc-rf2 @ 25c figure 12. isolation: rfc-rf1@ 2.75v figure 11. isolation: rfc-rf1@ 25c figure 14. isolation: rfc-rf2 @ 2.75v
product specification PE42551 page 7 of 9 ?2010-2012 peregrine semiconductor corp. all rights reserved. document no. 70-0350-02 ultracmos ? rfic solutions typical performance data figure 15. return loss: rf1 @ 25c (rfc-rf1 active path) figure 16. return loss: rf1 @ 2.75v (rfc-rf1 active path) figure 17. return loss: rf2 @ 25c (rfc-rf2 active path) figure 18. return loss: rf2 @ 2.75v (rfc-rf2 active path)
product specification PE42551 page 8 of 9 document no. 70-0350-02 www.psemi.com ?2010-2012 peregrine semiconductor corp. all rights reserved. figure 19. package drawing figure 20. marking specifications 42551 yyww zzzzz yyww = date code zzzzz = last five digits of lot number peregrine specification 19-0106 20-lead 4x4x0.85 mm qfn peregrine specification 17-0009
product specification PE42551 page 9 of 9 ?2010-2012 peregrine semiconductor corp. all rights reserved. document no. 70-0350-02 ultracmos ? rfic solutions figure 21. tape and reel drawing tape feed direction table 6. ordering information order code part marking description package shipping method 42551-00 PE42551-ek PE42551-20qfn 4x4 mm-ek evaluation kit 1/box 42551-51 42551 PE42551g-20qfn 4x4 mm green 20-lead 4x4 mm qfn cut tape 42551-52 42551 PE42551g-20qfn 4x4 mm-3000c green 20-lead 4x4 mm qfn 3000 units/t&r advance information : the product is in a formative or design stage. the datasheet contains design target specifications for product development. specifications and features may change in any manner without notice. preliminary specification: the datasheet contains preliminary data. additional data may be added at a later date. peregrine reserves the right to change specifications at any time without notice in order to supply the best possible product. product specification: the datasheet contains final data. in the event peregrine decides to change the specifications, peregrine will notify custom ers of the intended changes by issuing a cnf (customer notification form). the information in this datasheet is believed to be reliable. however, peregrine assumes no liability for the use of this information. use shall be entirely at the user?s own risk. no patent rights or licenses to any circuits described in this datasheet are implied or granted to any third party. peregrine?s products are not designed or intended for use in devices or systems intended for surgical implant, or in other applications intended to support or sustain life, or in any application in which the failure of the peregrine product could create a situation in which personal injury or death might occur. peregrine assumes no liability for damages, including consequential or incidental damages, arising out of the use of its products in such applications. the peregrine name, logo, ultracmos and utsi are registered trademarks and harp, multiswitch and dune are trademarks of peregrine semiconductor corp. sales contact and information for sales and contact information please visit www.psemi.com .
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