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4431-T-B1 D 434

4431-T-B1 D 434 electronic component of Silicon Labs

Datasheet
Sub-GHz Development Tools Single Tied Antenna 4431 Rev B1 TRx Testcard 434
Manufacturer: Silicon Labs
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1: USD 68.2123 ea
Line Total: USD 68.21

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4431-T-B1 D 434
Silicon Labs

1 : USD 68.2123

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Additional Infomation About Product

AN414 EZRADIOPRO LAYOUT DESIGN GUIDE 1. Introduction The purpose of this application note is to help users design EZRadioPRO PCBs using design practices that allow for good RF performance. This application note also help designers by separating TX and RX concerns. The RF performance and the critical maximum peak voltage on the output pin strongly depend on the PCB layout as well as the design of the matching networks. For optimal performance, Silicon Labs recommends the use of the PCB layout design hints described in the following sections. 2. Design Recommendations when Using EZRadioPRO RF ICs Extensive testing has been completed using reference designs provided by Silicon Labs. It is recommended to designers to use the reference designs as-is since they minimize detuning effects caused by parasitics, component placement, and PCB routing. When layouts cannot be followed as shown by the reference designs (due to PCB size and shape limitations), the following layout design rules are recommended. 2.1. Guidelines for Layout Design when Using the Si4430/31 The Si4430/31 devices use a Class-E type TX matching network with a typical output power level of +13 dBm at VDD = 3.3 V. Two basic types of board layout configurations exist at all frequency bands: the Split TX/RX type and the Direct Tie type. In the Split TX/RX type, the TX and RX paths are separated, and individual SMA connectors are provided for each path. In the Direct Tie type, the TX and RX paths are connected together directly, without any additional RF switch. The operating principle of both types and the reference designs with element values are given in AN436: Si4030/4031/4430/4431 PA Matching for wirewound and multilayer type 0402 size SMD inductances as well. The Split and Direct Tie type boards have slightly different PCB layouts, which are described in separate sections. 2.1.1. Split Type Matching Network Layout Based upon the 4431-T-B1 B Test Card (Separate TX and RX Paths with Two Antennas) Examples shown in this section of the guide are based upon the layout of the 4431-T-B1 B test cards. These cards contain two separate antennas for the TX and RX paths. This type of test card is best suited for demonstrating the output power and sensitivity of the EZRadioPRO RFICs. For this purpose, the TX and RX path layouts are separated and isolated as much as possible to minimize the mutual coupling effects. This type of test card is recommended for laboratory evaluation and not for range tests because the presence of two closely-spaced antennas may cause shadowing when receiving a radiated signal. The main layout design concepts are reviewed through this layout to demonstrate the basic principles. However, for an actual application, the layouts of the test cards with a single antenna (or with antenna diversity) should be used as references. The schematic of the Split type matching network for Si4431 RevB1 is shown in Figure 1. Rev. 0.2 12/10 Copyright 2010 by Silicon Laboratories AN414AN414 Figure 1. Schematic of the Split Type Matching Network for the Si4431 RevB1 The layout structure of the Split type matching network is shown in Figure 2. 2 Rev. 0.2

HS Compliance

Tariff Desc

8543.70.00 Other machines and apparatus Free
13 Signal processors (graphic equalisers, crossovers etc.) 91 Other Free

9027.10.00 Instruments and apparatus for physical or chemical analysis (eg, polarimeters, refractometers, spectrometers, gas or smoke analysis apparatus); instruments and apparatus for measuring or checking viscosity, porosity, expansion, surface tension or the like; instruments and apparatus for measuring or checking quantities of heat, sound or light (including exposure meters); microtomes Free

9031.80.00 MEASURING OR CHECKING INSTRUMENTS, APPLIANCES AND MACHINES, NOT SPECIFIED OR INCLUDED ELSEWHERE IN THIS CHAPTER; PROFILE PROJECTORS Other instruments, appliances and machines Free

9030.31.00 Oscilloscopes, spectrum analysers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, x-ray, cosmic or other ionising radiations.
Other instruments and apparatus, for measuring or checking voltage, current, resistance or power Multimeters without a recording device Free

8473.30.00 Parts and accessories of the machines of 8471 AUTOMATIC DATA PROCESSING MACHINES AND UNITS THEREOF; MAGNETIC OR OPTICAL READERS, MACHINES FOR TRANSCRIBING DATA ONTO DATA MEDIA IN CODED FORM AND MACHINES FOR PROCESSING SUCH DATA, NOT ELSEWHERE SPECIFIED OR INCLUDED:
.Other 71 No Weighing less than 1kg Free

8537 BOARDS, PANELS, CONSOLES, DESKS, CABINETS AND OTHER BASES, EQUIPPED WITH TWO OR MORE APPARATUS OF 8535 OR 8536, FOR ELECTRIC CONTROL OR THE DISTRIBUTION OF ELECTRICITY, INCLUDING THOSE INCORPORATING INSTRUMENTS OR APPARATUS OF CHAPTER 90, AND NUMERICAL CONTROL APPARATUS, OTHER THAN SWITCHING APPARATUS OF 8517:
8538 PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE APPARATUS OF 8535, 8536 OR 8537:
8538.10.10 22 For programmable controllers Free

Silicon Labs may also be referenced as

BLUEGIGA
Bluegiga Technologies
Energy Micro
Redpine
Redpine Signals
REDPINE SIGNALS INC.
Redpine Signals, Inc.
RPS
Silicon
SILICON LABORATORIES
Silicon Laboratories Inc
SILICON LABS
Silicon Labs Bluegiga
Silicon Labs / Bluegiga
SL4
Telegesis
TELEGESIS (UK) LIMITED
Touchstone
Touchstone Semiconductor
TOUCHSTONE TECH.
TOUCHSTONE TECHNOLOGY
Zentri / ACKme Networks

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