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| plerowTM ALN2590T2 Internally Matched LNA Module Features * S21 = 23.3 dB @ 2490 MHz = 22.7 dB @ 2690 MHz * NF of 0.80 dB over Frequency * Unconditionally Stable * Single 5V Supply * High OIP3 @ Low Current * 0.35 sec Switching Time Description The plerowTM ALN-series is the compactly designed 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 communication terminals, CATV and so on. 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 application 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. Specifications (in Production) Typ. @ T = 25C, Vs = 5 V, Freq. = 2590 MHz, Zo.sys = 50 ohm Parameter Frequency Range Gain Gain Flatness Noise Figure Output IP3 S11 / S22 (1) (2) Unit MHz dB dB dB dBm dB dBm Specifications Min 2490 22 23 0.3 0.80 31 14 32 -18 / -15 15 0.35 70 5 50 C.W 29 ~ 31 (before fail) Surface Mount Type, 10Wx10Lx3.8H 80 0.4 0.85 Typ Max 2690 2-stage Single Type More Information Website: www.asb.co.kr E-mail: sales@asb.co.kr Tel: (82) 42-528-7223 Fax: (82) 42-528-7222 ASB Inc., 4th Fl. Venture Town Bldg., 367-17 Goijeong-Dong, Seo-Gu, Daejon 302-716, Korea Output P1dB Switching Time Supply Current Supply Voltage Impedance Max. RF Input Power Package Type & Size (3) sec mA V dBm mm Operating temperature is -40C to +85C. 1) OIP3 is measured with two tones at an output power of 3 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 VS. Outline Drawing (Unit: mm) plerow ALN2590T2 ASB Inc. (Top View) Solder Stencil Area (Bottom View) Pin Number 2 5 6 Others Function RF In RF Out +Vcc Ground Note: 1. The number and size of ground via holes in a circuit board is critical for thermal RF grounding considerations. 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 drawing at the left side. (Side View) O0.4 plated thru holes to ground plane (Recommended Footprint) 1/4 www.asb.co.kr December 2008 plerowTM ALN2590T2 Internally Matched LNA Module S-parameters Typical Performance (Measured) 2490~2690 +5 V S-parameters & K Factor Noise Figure OIP3 P1dB 2/4 www.asb.co.kr December 2008 plerowTM ALN2590T2 Internally Matched LNA Module Switching Time 3/4 www.asb.co.kr December 2008 plerowTM ALN2590T2 Internally Matched LNA Module Application Circuit V DC + - Tantal Capacitor IN C1 ALN C2 OUT 1) The tantal capacitor is optional and for bypassing the AC noise introduced from the DC supply. The capacitance value may be determined 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 determined by considering the application frequency. Recommended Soldering Reflow Process 260C 20~40 sec Evaluation Board Layout +Vcc Ramp-up (3C/sec) 200C Ramp-down (6C/sec) IN OUT 150C 60~180 sec Size 25 x 25mm (for ALN-AT, BT, T Series - 10x10mm) 4/4 www.asb.co.kr December 2008 |
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