ALN1750AT ASB | Alldatasheet

Document overview

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Technical content

Features

  • S 21 = 15.8 dB @ 1700 MHz = 15.2 dB @ 1800 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 critical for thermal RF grounding considerations. 2. We recommend that the ground via holes be placed on the bottom of all ground pins fo r better RF and thermal performance, as shown in the drawing at the left side.

Description

(Recommended Footprint) ALN1750AT ASB Inc. (Top View) (Bottom View) Ø0.4 plated thru holes to ground plane plerow (Side View) 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 More Information 1-stage Single Type Typ. @ T = 25°C, Vs = 5 V, Freq. = 1750 MHz, Zo.sys = 50 ohm Solder Stencil Area Specifications (in Production)

2/3 www.asb.co.kr November 2008 plerowTM ALN1750AT Internally Matched LNA Module S-parameters Noise Figure OIP3 P1dB 1700~1800 +5 V Stability Factor (K) Typical Performance (Measured)

3/3 www.asb.co.kr November 2008 plerowTM ALN1750AT Internally Matched LNA Module 1) The tantal capacitor is optional and for bypa ssing 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 bl ocking 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. 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 25mm IN OUT +Vcc (for ALN-AT, BT, T Series – 10x10mm)