MAX44211EVKIT# Analog Devices

Evaluates: MAX44211 MAX44211 Evaluation Kit General Description Quick Start The MAX44211 evaluation kit (EV kit) provides a proven Required Equipment design to evaluate the MAX44211 high-current differential Before beginning, the following equipment is needed: line driver for powerline communications (PLC). The line MAX44211 EV kit driver is an efficient low-distortion power amplifier that provides high current to the low-impedance loads. +8V to +20V, 3A DC power supply The MAX44211 EV kit printed circuit board (PCB) comes +2.7V to +5.5V, 100mA DC power supply with a MAX44211ETP+ in a 20-pin TQFN package. +3.3V, 100mA DC power supply Refer to the ZENOPLCEVK1 for a complete microcon- Function generator (Agilent 33220A) troller and line driver evaluation platform. Artificial mains network (line impedance stabilization network) or a 50 load across OUT- and OUT- Benefits and Features On-Board Single to Differential Amplifier (MAX9626) Procedure for Single-Ended Signal Sources to Match with The MAX44211 EV kit is fully assembled and tested. MAX44211 Differential Inputs Follow the steps below to verify the board operation. Connector with Accessible Signals and Supplies for Caution: Do not turn on power supply until all con- Host Processor nections are made. Proven PCB Layout 1) Connect the positive terminal of the +8V to +20V supply to the AVDD test point and the negative termi- Fully Assembled and Tested nal of the supply to the nearest AGND test point. 2) Connect the positive terminal of the +2.7V to +5.5V supply to the DVDD test point and the negative ter- minal of the supply to the nearest DGND test point. 3) Connect the positive terminal of the +3.3V supply to the VCC U2 test point and the negative terminal of Ordering Information appears at end of data sheet. the supply to the VEE U2 test point. 4) Connect the artificial mains network to the OUT connector. 5) Connect the signal from the function generator to the SD IN BNC. 6) Set the signal generator for 100mV , 0V offset, P-P and 100kHz sine wave. 7) Enable all supplies. 8) Enable function generator. 9) Observe the output signal from the artificial mains network. 19-7648 Rev 0 6/15Evaluates: MAX44211 MAX44211 Evaluation Kit Table 1. Jumper Description SHUNT JUMPER DESCRIPTION POSITION Installed* Connects the G1 pin of the MAX44211 to DVDD for appropriate gain selection. See Table 2. JU1 Not installed Disconnects the G1 pin of the MAX44211 from DVDD for appropriate gain selection. See Table 2. Installed* Connects the G0 pin of the MAX44211 to DVDD for appropriate gain selection. See Table 2. JU2 Not installed Disconnects the G1 pin of the MAX44211 from DVDD for appropriate gain selection. See Table 2. Installed* Enables TXEN. JU3 Not installed Disables TXEN. Installed ARIB mode. JU4 Not installed* Standard mode. 1-2* Sets the output current limit to 2A. 2-3 Do not connect. JU5 Sets the output current limit as defined by a user-supplied resistor connected between the ILSET Not installed pin and GND. Installed* Connects the OUT- output of the MAX9626 to the input of the MAX44211. JU6 Not installed Disconnects the OUT- output of the MAX9626 to the input of the MAX44211. Installed* Connects the OUT+ output of the MAX9626 to the input of the MAX44211. JU7 Not installed Disconnects the OUT+ output of the MAX9626 to the input of the MAX44211. *Default configuration Table 2. Gain Settings (Jumpers JU1 Detailed Description of Hardware The MAX44211 EV kit provides a proven design to evalu- and JU2) ate the MAX44211 high-current line driver for power-line Gain (V/V) G1 (JU1) G0 (JU0) communications. The EV kit includes a MAX9626 ampli- 6 Not installed Not installed fier used to generate the differential signal required by the MAX44211 from a single-ended input. The jumpers are 12 Not installed Installed used for gain and current limit settings, transmit enabling 15 Installed Not installed (TXEN), setting modes (MODE), and removing the single 18 Installed* Installed* to differential input feature. A 12-pin connector is available to connect to a host processor. Also included are LEDs to *Default configuration indicate the status of the MAX44211. of +3.3V be applied between the VCC U2 and VEE U2 Analog Inputs test points. The single-ended signal can be applied at the Differential analog inputs can be applied to the IN+ and SD IN BNC. Shunts must be installed at jumpers JU6 and IN- BNC on the MAX44211 EV kit. JU7 to drive the MAX44211 analog inputs. Optional On-Board Single to Differential Amplifier Gain Settings When a differential input source is not available, the user The gain settings of the MAX44211 are summarized in can use the on-board single-ended to differential amplifier Table 2. (MAX9626). This option requires that a separate supply Maxim Integrated 2 www.maximintegrated.com