Evaluates: MAX3522B MAX3522B Evaluation Kit General Description Quick Start The MAX3522B evaluation kit (EV kit) simplifies the Required Equipment testing and evaluation of the MAX3522B DOCSIS 3.1 MAX3522B EV Kit Board (included) upstream amplifier. The EV kit is fully assembled and One power supply capable of supplying at least tested at the factory. Standard 50 SMA connectors are 2000mA at +5V included on the EV kit for the inputs and outputs to allow quick and easy evaluation on the test bench. One RF signal generator capable of delivering at least -10dBm of output power at up to 204MHz This document provides a list of equipment required to frequency (HP8482A or equivalent) evaluate the device, a straightforward test procedure to verify functionality, a description of the EV kit circuit, the One RF spectrum analyzer capable of covering the circuit schematic, a list of components for the EV kit, and operating frequency range of the device artwork for each layer of the PCB. One Windows PC with available USB port Two 50 SMA cables Features Mini-USB type A-to-type B cable Easy Evaluation of the MAX3522B (Optional) One network analyzer to measure return loss 50 SMA Connectors (Optional) One ammeter to measure supply current All Critical Peripheral Components Included Reference Design Ready Layout Procedure Fully Assembled and Tested This section provides a step-by-step guide to testing the basic functionality of the EV kit. PC Control Software (Available at www.maximintegrated.com) 1) With its output disabled, set the DC power supply to +5V. If available, set the power supplys current limit Ordering Information appears at end of data sheet. to 2000mA. Connect the power supply to the +5V (through an ammeter if desired) and GND terminals on the EV kit, as shown in Figure 1. 2) With its output disabled, set the RF signal generator to 85MHz and a power level of -20dBm. Connect the output of the RF signal generator to the SMA connector labeled J1 RF IN on the evaluation board, as shown in Figure 1. 3) Connect the SMA connector labeled J2 RFOUT1 or J3 RFOUT2 on the evaluation board to a spectrum analyzer, as shown in Figure 1. 4) Connect the USB cable from FT4232 modules USB mini-B port to PC USB port, as shown in Figure 1. 5) Download the MAX3522B control software (MAX3522 SetupXXXX.zip), at Evaluates: MAX3522B MAX3522B Evaluation Kit 7) Turn on the +5V power supply. 11) On the MAX3522B GUI, Turn on the TX ENABLE switch (see Figure 2). The supply current from the 8) Run MAX3522.exe. MAX3522B GUI should be +5V supply should read approximately 1100 mA. Be launched as shown in Figure 2. Please notice that sure to adjust the power supply to account for the sequence of first turning on the power supply then any voltage drop across the ammeter. starting the GUI is very important. This sequence ensures proper initialization of the MAX3522B. If the 12) Depending on which output SMA is connected, user setup is successful, GUI should indicate interface needs to set PASELECT bit accordingly. On the connected, in the lower right corner of the GUI (see MAX3522B GUI, click 01 CTRL and then set PASELECT Figure 2). (see Figure 3) by clicking the register value (default = 0b). PASLECT = 0 enables OUTPUT1 (J2), PASLECT = 1 9) On the MAX3522B GUI, hit Refresh ROM button, enables OUTPUT2 (J3). located in the upper portion of the GUI (see Figure 2). 13) Enable the RF signal generators output. 10) On the MAX3522B GUI, set Power Code = 3, Gain Code = 63, (located in the upper-left section of the 14) Check the output level on the spectrum analyzer. GUI) by using the up/down arrow buttons or typing the Expected power level is about -7dBm at 85MHz. value (see Figure 2). Figure 1. EV Kit Hardware Setup Maxim Integrated 2 www.maximintegrated.com