1 / 5 www.asb.co.kr june 2017 p lerow tm ALN0925 internally matched lna module the plerow tm aln - series is the compactly de signed surface - mount module for the use of the lna with or without the following gain blocks in the infrastructure equipment of the mobile wireless (cdma, gsm, pcs, phs, wcdma, dmb, wlan, wibro, wimax), gps, satellite commun i- cation terminals , catv and so o n. it has an exceptional performance of low noise figure, high gain, high oip3, and low bias current. the stability factor is always kept more than unity over the application band in order to ensure its unconditionally stable implementation to the applicat ion system environment. the surface - mount module package including the completed matching circuit and other components necessary just in case allows very simple and convenient implementation onto the system board in mass production level. parameter unit specifications min typ max frequency range mhz 890 960 gain db 36.5 37.5 gain flatness db ? 0.5 ? 0.7 noise figure db 1.1 1.15 output ip3 (1) dbm 34 35 s11 / s22 (2) db - 14 / - 14 output p1db dbm 18 19 switching time (3) ? sec - supply current ma 80 100 supply voltage v 5 impedance ? 50 package type & size mm surface mount type, 13wx13lx3.8h operating temperature is - 40 ? c to +85 ? c. 1) oip3 is measured wit h two tones at an output power of 10 dbm / tone separated by 1 mhz. 2) s11/s22 (max) is the worst value within the frequency band. 3) switching time means the time that takes for output power to get stabilized to its final level after switching dc voltage from 0 v to v s . pin number function 3 rf in 8 rf out 10 +vcc other s ground ou t line drawing (unit: mm) feature s s 21 = 38 db @ 890 mhz = 37 db @ 960 mhz nf of 1.1 db over fr e quency unconditionally stable single 5v supply high oip3 @ low current note: 1. the number and size of ground via holes in a circuit board is critical for thermal rf grounding consi der a tions. 2. we recommend that the ground via holes be placed on the bottom of all ground pins for better rf and thermal performance, as shown in the dra w ing at the left side. description ALN0925 asb inc. (top view) (bottom view) solder stencil area ? 0.4 plated thru holes to ground plane plerow (side view) (recommended footprint) website: www.asb.co.kr e - mail: sales@asb.co.kr tel: (82) 42 - 528 - 722 3 f ax : (82) 42 - 528 - 7222 more inform a tion 2 - stage single t ype typ. @ t = 25 ? c, v s = 5 v, freq. = 925 mhz, z o.sys = 50 ohm specifications (in pr o duction)
2 / 5 www.asb.co.kr june 2017 p lerow tm ALN0925 internally matched lna module s - param e ters noise figure oip3 p1db 890~960 mhz +5 v stability fa c tor (k) typical performance (measured)
3 / 5 www.asb.co.kr june 2017 p lerow tm ALN0925 internally matched lna module gain, p1db, and oip3 with te m perature ( - 40 ~ 100 )
4 / 5 www.asb.co.kr june 2017 p lerow tm ALN0925 internally matched lna module nf, p1db, oip3, and s - parameters with voltage change (4.5 v ~ 5.5 v)
5 / 5 www.asb.co.kr june 2017 p lerow tm ALN0925 internally matched lna module 1) the tantal capacitor is opti onal and for bypassing the ac noise introduced from the dc supply. the capacitance value may be dete r mined by customer s dc supply status. 2) so - called dc blocking capacitors are always necessarily placed at the input and output port for allowing only the rf signal to pass and blocking the dc component in the signal. the dc blocking capacitors are included inside the lna module. therefore, c1 & c2 capacitors may not be necessary, but can be added just in case that the customer wants. the value of c1 & c2 is de termined by considering the application fr e quency. copyright ? 2007 - 2017 asb inc. all rights reserved. datasheet subject to change without notice. asb assumes no re- sponsibility for any errors which may appear in this datasheet. no part of the datasheet may be copied or reproduced in any form or by any means without the prior written consent of asb. application circuit recommended soldering reflow process evaluation board layout + - aln out in c1 c2 tantal c a pacitor v dc 20~40 sec 260 ? c 200 ? c 150 ? c 60~180 sec ramp - up (3 ? c/sec) ramp - down (6 ? c/sec) size 25 x 25mm in out +vcc (for aln series C 13x13mm)
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