ALN0450_13 ASB | Alldatasheet

Document overview

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  • PDF pages: 3

Technical content

Features

  • S21 = 36.6 dB@400 MHz = 35.4 dB@500 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 for better RF and thermal performance, as shown in the drawing at the left side.

Description

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 Specifications (in Production) Typ.@T = 25 C, Vs = 5 V, Freq. = 450 MHz, Zo.sys = 50 ohms

2/3 www.asb.co.kr March 2010 plerowTM ALN0450 Internally Matched LNA Module S-parameters Noise Figure OIP3 P1dB 400~500 MHz +5 V Typical Performance (Measured) S-parameters & K Factor

3/3 www.asb.co.kr March 2010 plerowTM ALN0450 Internally Matched LNA Module 1) The tantal or MLC (Multi Layer Ceramic) 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. The ca- pacitor should be placed as close as possible to Vs pin and be connected directly to the ground plane for the best electrical performance. 2) 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 inclu d- ed inside the ALN module. Therefore, C1 & C2 capaci tors 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 fr e- quency. Application Circuit Recommended Soldering Reflow Process + - ALN OUT IN C1 C2 VS Tantal or MLC (Multi Layer Ceramic) Capacitor 20~40 sec 260C 200C 150C 60~180 sec Ramp-up (3˚C/sec) Ramp-down (6C/sec) IN OUT Vs Size 25x25mm (for ALN Series – 13x13mm) Evaluation Board Layout