plerowTM ALN1971T2 Internally Matched LNA Module Features Description · S21 = 24.1 dB @ 1960 MHz = 23.9 dB @ 1980 MHz · NF of 0.65 dB over Frequency · Unconditionally Stable · Single 5V Supply · High OIP3 @ Low Current 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 = 25°C, Vs = 5 V, Freq. = 1970 MHz, Zo.sys = 50 ohm Parameter Unit Frequency Range Min MHz 1960 Gain dB 23 Gain Flatness dB Noise Figure Output IP3 S11 / S22 Typ dBm (2) 24 33 ± 0.1 ± 0.2 0.65 0.70 dBm (3) Website: www.asb.co.kr E-mail: [email protected] Tel: (82) 42-528-7223 Fax: (82) 42-528-7222 -18 / -12 19 20 µsec - Supply Current mA 95 Supply Voltage V 5 Impedance Ω 50 Switching Time More Information 34 dB Output P1dB Max 1980 dB (1) 2-stage Single Type Specifications ASB Inc., 4th Fl. Venture Town Bldg., 367-17 Goijeong-Dong, Seo-Gu, Daejon 302-716, Korea 115 Max. RF Input Power dBm C.W 29 ~ 31 (before fail) Package Type & Size mm Surface Mount Type, 10Wx10Lx3.8H Operating temperature is -40°C to +85°C. 1) OIP3 is measured with two tones at an output power of 5 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) Pin Number plerow ALN1971T2 ASB Inc. (Top View) (Bottom View) Function 2 RF In 5 RF Out 6 +Vcc Others 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. Solder Stencil Area (Side View) Ø0.4 plated thru holes to ground plane (Recommended Footprint) 1/4 www.asb.co.kr January 2009 plerowTM ALN1971T2 Internally Matched LNA Module S-parameters Typical Performance (Measured) 1960~1980 +5 V Noise Figure S-parameters & K Factor OIP3 2/4 P1dB www.asb.co.kr January 2009 plerowTM ALN1971T2 Internally Matched LNA Module RF Performance with Voltage Change 1. S-parameter 1960 MHz 1970 MHz 1980 MHz S21 (dB) S11 (dB) S22 (dB) S21 (dB) G/F (dB) S11 (dB) S22 (dB) S21 (dB) S11 (dB) S22 (dB) 4.50 V 24.53 -26.44 -16.65 24.45 0.18 -26.87 -16.92 24.35 -26.57 -17.11 4.75 V 24.64 -27.63 -16.50 24.58 0.17 -28.09 -16.74 24.47 -27.92 -16.92 5.00 V 24.71 -28.73 -16.46 24.65 0.17 -29.34 -16.72 24.54 -29.20 -16.92 5.25 V 24.74 -29.75 -16.68 24.68 0.17 -30.30 -16.93 24.57 -30.25 -17.12 5.50 V 24.76 -30.55 -16.85 24.70 0.17 -31.31 -17.13 24.59 -31.05 -17.29 2. OIP3, P1dB & NF 1960 MHz 1970 MHz 1980 MHz OIP3 (dBm) P1dB (dBm) NF (dB) OIP3 (dBm) P1dB (dBm) NF (dB) OIP3 (dBm) P1dB (dBm) NF (dB) 4.50 V 31.59 20.26 0.619 31.61 20.20 0.613 31.62 20.15 0.613 4.75 V 33.81 20.80 0.639 33.67 20.72 0.621 33.66 20.68 0.623 5.00 V 35.33 21.23 0.634 35.17 21.20 0.626 35.32 21.17 0.621 5.25 V 36.21 21.65 0.646 35.96 21.61 0.641 36.02 21.60 0.640 5.50 V 36.25 21.98 0.644 36.31 21.95 0.653 36.41 21.95 0.650 Note: tested at room temperature. RF Performance with Operating Temperature 1. S-parameter 1960 MHz 1970 MHz 1980 MHz S21 (dB) S11 (dB) S22 (dB) S21 (dB) G/F (dB) S11 (dB) S22 (dB) S21 (dB) S11 (dB) S22 (dB) -45 °C 26.13 -31.93 -12.98 26.01 0.29 -29.88 -13.19 25.82 -29.16 -12.84 -10 °C 25.81 -30.75 -14.70 25.73 0.29 -29.29 -14.96 25.52 -28.68 -14.55 25 °C 25.50 -29.97 -16.21 25.41 0.29 -29.07 -16.25 25.21 -28.42 -16.67 60 °C 25.18 -28.21 -17.73 25.09 0.26 -27.31 -18.34 24.92 -27.24 -17.89 85 °C 24.92 -27.07 -19.20 24.83 0.24 -26.32 -19.77 24.68 -26.33 -19.08 2. OIP3, P1dB & NF 1960 MHz 1970 MHz 1980 MHz OIP3 (dBm) P1dB (dBm) NF (dB) OIP3 (dBm) P1dB (dBm) NF (dB) OIP3 (dBm) P1dB (dBm) NF (dB) -45 °C 35.27 21.69 0.232 35.26 21.58 0.235 35.09 21.80 0.241 -10 °C 35.82 21.53 0.399 35.87 21.39 0.400 35.70 21.43 0.402 25 °C 35.70 21.26 0.629 35.86 21.16 0.631 35.71 21.14 0.632 60 °C 35.21 20.64 0.778 35.34 20.52 0.797 35.25 20.53 0.804 85 °C 34.82 20.03 0.916 34.64 20.06 0.920 34.60 20.03 0.922 Note: tested at Vs= 5V. 3/4 www.asb.co.kr January 2009 plerowTM ALN1971T2 Internally Matched LNA Module Application Circuit V DC + - Tantal Capacitor IN OUT ALN C1 C2 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 Evaluation Board Layout +Vcc 20~40 sec 260°C Ramp-up (3˚C/sec) Ramp-down (6°C/sec) IN 200°C OUT 150°C 60~180 sec Size 25 x 25mm (for ALN-AT, BT, T Series – 10x10mm) 4/4 www.asb.co.kr January 2009