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data sheet, version 1.2, december 2003 prescaler circuit 2.1 ghz pmb 2314t version 1.5 never stop thinking. wireless infrastructure
edition 2003-12-04 published by infineon technologies ag, st.-martin-strasse 53, 81669 mnchen, germany ? infineon technologies ag 2003. all rights reserved. attention please! the information herein is given to describe certain components and shall not be considered as a guarantee of characteristics. terms of delivery and rights to technical change reserved. we hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. information for further information on technology, delivery terms and conditions and prices please contact your nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements components may contain dangerous substances. for information on the types in question please contact your nearest infineon technologies office. infineon technologies components may only be used in life-support devices or systems with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered.
prescaler circuit 2.1 ghz revision history: 2003-12-04 version 1.2 previous version: none page subjects (major changes since last revision) all updated format we listen to your comments any information within this document that you feel is wrong, unclear or missing at all? your feedback will help us to continuously improve the quality of this document. please send your proposal (including a reference to this document) to: mcdocu.comments@infineon.com
data sheet 4 version 1.2, 2003-12-04 pmb 2314t version 1.5 table of contents 1overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 ac/dc characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 7test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 8 application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1 9diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 - definition of modulus set-up time - input dynamic range 10 package outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
pmb 2314t version 1.5 overview data sheet 5 version 1.2, 2003-12-04 1 overview 1.1 functional descri ption/ application the ic is designed for use in mobile radio communication devices up to 2100 mhz and upconversion systems up 2500 mhz. due to low power consumption and low phase noise generation, the PMB2314t is suitable for use in battery powered handheld systems, e.g. gsm, cordless telephones and cordless consumer products, as well as in basestations. low supply voltage down to 2.7v. it can be switched to a low-power standby mode. internal current source at the emitter follower output. no external resistor needed in typical applications. the divide ratio is 1:64/65 or 1:128/129 depending on the external circuit configuration. 1.2 circuit description the differential inputs of the ic may be connected either balanced or single ended. in the latter case the unused input must be rf-grounded with a capacitor (about 10 pf) with a low serial inductance. depending on the logic level at sw input the basic divide ratio of the ecl-stages is fixed to 1:64/65 or 1:128/129. the mod input determines whether modulus 1:n or 1:n+1 (n=64 or 128 according to sw-level) is active. the ic can be switched to a low-power standby mode (input stb). the mod input is ttl/cmos compatible. the emitter follower output is cmos compatible according to the application circuit on page 12. the minimum logic swing is 0.8 v pp . table 1 function table input pin logic level prescaler function sw high = u s -0.1 v to u s low = gnd to 0.8 v or open 1:64/65 1:128/129 mod high = 2.0 v to u s or open low = gnd to 0.8 v 1:64/1:128 1:65/1:129 stb high = u s -0.1 v to u s low = gnd to 0.8 v divider q=high, standby-mode ? prescalar circuit 2.1 ghz
data sheet 6 version 1.2, 2003-12-04 pmb 2314t version 1.5 pin assignment 2 pin assignment 1 2 3 4 5 6 7 8 i1 us sw q i2 stb mod gnd pin 1 rf-input i1 pin 2 supply voltage u s pin 3 divide ratio 1:64/65 - 1:128/129 control input (sw) pin 4 output q pin 5 gnd pin 6 modulus 1:n/n+1 (n=64 or 128) control input (mod) pin 7 standby mode control input (stb) pin 8 rf-input i2
pmb 2314t version 1.5 block diagram data sheet 7 version 1.2, 2003-12-04 3 block diagram 1:64/65 1:128/129 5 6 4 q mod gnd 2 u s 7 stb 8 1 3 sw i1 i2 i u ref
data sheet 8 version 1.2, 2003-12-04 pmb 2314t version 1.5 absolute maximum ratings 4 absolute maximum ratings t a = -40 to 85 c parameter symbol limit values unit remarks min. max. supply voltage u s -0.3 6 v input level (pin 1; pin 8) u i 2v u s =0v voltage swing (pin 1 to 8) u i18 -2 2 v input level (pin 3; pin 6; pin 7) u sw, u mod, u stb, -0.3 u s +0.7v or 5.5v if u s +0.7v > 5.5v v u s =2.7...5.5v output level (pin 4) u q u s v output current (pin 4) -i q 5ma junction temperature t j 125 c storage temperature t s -65 125 c thermal resistance system-ambient r thsa 185 k/w 5 operating range parameter symbol limit values unit remarks min. max. supply voltage u s 2.7 5.5 v input frequency ? 100 2300 mhz ambient temperature t a -40 85 c within the operational range the ic operates as described in the circuit description. the ac / dc characteristic limits are not guaranteed. the maximum ratings may not be exceeded under any circumstances, not even momentarily and individually, as permanent damage to the ic will result. esd-integrity ( according mil-std 883d, meth. 3015.7): 500v
pmb 2314t version 1.5 ac/dc characteristics data sheet 9 version 1.2, 2003-12-04 6 ac/dc characteristics supply voltage v s =2.7 to 5.5v ambient temperature t a = -20 to 85 c (refered to the test circuit) parameter symbol limit va lues unit test condition min. typ. max. supply current supply current normal operation i s 2.7 3.3 ma inputs rf-grounded, u s =2.7, t a = 25 c, stb= v s output open i s 2.8 3.4 ma inputs rf-grounded, u s =4.0, t a = 25 c, stb= v s output open i s 2.9 3.5 ma inputs rf-grounded, v s =5.5, t a = 25 c, stb= v s output open supply current standby-mode i stb 0.1 ma inputs rf-grounded, output open, stb = gnd rf input i1,i2 input level dynamic range p in -20 4 dbm 100-1500mhz (sine wave) p in -20 -3 dbm 2100 mhz ( diagram 2 ) output q output logic swing u q 1 1.1 vpp c l <= 12pf, r l =2k ? u q 0.8 1.1 vpp c l <= 8pf internal current source i 400 a see block diagram divider ratio control input sw age high v swh v s -0.1 v s v voltage low v swl gnd 0.8 v input current high i swh 60 asw= v s input current low -i swl 30 asw=gnd modulus control input mod voltage high v modh 2.3 v s v voltage low v modl gnd 0.8 v input current high i modh 50 amod= v s input current low -i modl 120 amod=gnd standby mode control input stb voltage high v stbh u s -0.1 v s v voltage low v stbl gnd 0.8 v input current high i stbh 30 astb= v s input current low -i stbl 60 astb=gnd delay times mod setup time (diagram 1) t set 814 ns ac /dc characteristics involve the spread of values guaranteed within the specified suply voltage and ambient temperature range . typical cha- racteristics are the median of the production.
data sheet 10 version 1.2, 2003-12-04 pmb 2314t version 1.5 test circuit 7test circuit u s spectrum analyser 50 ? input sensitivity and output logic swing measurement signal generator (50 ?) 1 2 3 4 5 6 7 8 pmb 2314 frequency counter scope c load r l u s 1n u i u sw u q u s u mod gnd u stb 1n u i2 c load <= 8pf inc. jig and instrument input capacitance r l only needed for enhanced driving capability. 1n
pmb 2314t version 1.5 application circuit data sheet 11 version 1.2, 2003-12-04 8 application circuit 1 2 3 4 5 6 7 8 pmb 2314 mod cmos-pll tbb 206 pmb 2304 pd f lf vco u s ca. 1nf 1n i1 u s sw q i2 1nf stb mod gnd (sw connected for 1:64/65 divider ratio) pmb 2307
data sheet 12 version 1.2, 2003-12-04 pmb 2314t version 1.5 diagrams t set i mod q changes of the mod-level made up to this time will still affect the q-output 9diagrams diagram 1 - definition of modulus set-up time diagram 2 - input dynamic range -50 -40 -30 -20 -10 0 10 20 0 500 1000 1500 2000 2500 pin / [ dbm ] f / [ mhz ] pmb 2314 t v1.3 dynamic range 2.7v ratio 65 operating window
pmb 2314t version 1.5 package outlines data sheet 13 version 1.2, 2003-12-04 10 package outlines plastic package, p-dso-8, dual-in-line-package, 20 a 8 din 41870 t16 (smd) 5,2 max 4 -0,2 1,75 max 0,7 60,2 0,19 +0,06 5 1,45 -0,2 0,7 max 3,81 1,27 0,35 +0,15 8 5 4 1
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