ALN1912_13 ASB | Alldatasheet
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1/3 www.asb.co.kr August 2010 plerowTM ALN1912 Internally Matched LNA Module The plerow TM 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 commun i- cation 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 packag e 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 1900 1920 Gain dB 26 27 Gain Flatness dB 0.1 0.3 Noise Figure dB 0.65 0.70 Output IP3 (1) dBm 33 34 S11 / S22 (2) dB -18/-10 Output P1dB dBm 20 21 Switching Time (3) sec - Supply Current mA 120 150 Supply Voltage V 5 Impedance 50 Max. RF Input Power dBm C.W 29~31 (before fail) Package Type & Size mm Surface Mount Type, 13Wx13Lx3.8H Operating temperature is –40 C to +85 C. 1) OIP3 is measured with 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 VS. Pin Number Function
3 RF In
8 RF Out
Outline Drawing (Unit: mm)
- S21 = 27.1 dB@1900 MHz = 26.9 dB@1920 MHz
- NF of 0.65 dB over Frequency
- Unconditionally Stable
- Single 5V Supply
- High OIP3@Low Current Note: 1. The number and size of ground via holes in a circuit board is criti cal 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. ALN1912 ASB Inc. (Top View) (Bottom View) Solder Stencil Area Ø 0.4 plated thru holes to ground plane plerow (Side View) (Recommended Footprint) C o u pl er Website: www.asb.co.kr E-mail: sales@asb.co.kr Tel: (82) 42-528-7223 Fax: (82) 42-528-7222 More Information C o u pl er C o u pl er C o u pl er C o u pl er 2-stage Single Type Features Description Specifications (in Production) Typ.@T = 25 C, Vs = 5 V, Freq. =1910 MHz, Zo.sys = 50 ohm
2/3 www.asb.co.kr August 2010 plerowTM ALN1912 Internally Matched LNA Module S-parameters Noise Figure OIP3 P1dB 1900~1920 MHz +5 V Stability Factor (K) Typical Performance (Measured)
3/3 www.asb.co.kr August 2010 plerowTM ALN1912 Internally Matched LNA Module 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 th e 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. Application Circuit Recommended Soldering Reflow Process Evaluation Board Layout + - ALN OUT IN C1 C2 Tantal Capacitor 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 25 mm IN OUT +Vcc (for ALN Series – 13x13 mm)