MAX9716EVKIT

Click here to ask about the production status of specific part numbers. Evaluates: MAX9716/MAX9717A/B/C/D MAX9716 Evaluation Kit General Description The MAX9716 evaluation kit (EV kit) is a fully assembled and tested circuit board that uses the MAX9716, a lowcost, mono, 1.4W, bridge-tied-load (BTL) audio power amplifier with adjustable gain. Designed to operate from a 2.7V to 5.5V DC power supply, the EV kit is capable of delivering 1.4W into a 4Ω load with less than 1% THD+N. The EV kit can be used to evaluate the MAX9717A/B/C/D. To evaluate the MAX9717A with the EV kit, replace the MAX9716 IC with a MAX9717A. To evaluate the MAX9717B/C/D with the EV kit, replace the MAX9716 IC with a MAX9717B/C/D, remove resistors R1 and R2, and short the R1 pads. Features ●● Single Power Supply: 2.7V to 5.5V ●● 10nA (typ) IC Shutdown Current ●● 1.4W into 4Ω at 1% THD+N ●● 1.1W into 8Ω ●● Resistor Adjustable Gain (MAX9716/MAX9717A) ●● Surface-Mount Construction ●● Fully Assembled and Tested Ordering Information PART TYPE MAX9716EVKIT# EV Kit Note: To evaluate the MAX9717A/B/C/D, request a MAX9717AETA/MAX9717BETA/MAX9717CETA/MAX9717DETA free sample with the MAX9716 EV kit. Component List DESIGNATION QTY C1 C2 C3 C4 C5 DESCRIPTION 1 10µF ±20%, 6.3V X5R ceramic capacitor (0805) TDK C2012X5R0J106M 1 0.1µF ±10%, 16V X7R ceramic capacitor (0603) TDK C1608X7R1C104K 1 0.47µF ±20%, 10V tantalum capacitor (0402) AVX TACK474M010 1 1µF ±10%, 10V X5R ceramic capacitor (0603) TDK C1608X5R1A105K 1 DESIGNATION QTY 10µF ±20%, 6.3V tantalum capacitor (A case) AVX TAJA106M006 DESCRIPTION JU1 1 4-pin header JU2 1 3-pin header OUT 1 3.5mm SMT stereo headphone jack R1, R2 2 10kΩ ±1% resistors (0603) U1 1 Audio power amplifier Maxim MAX9716ETA (8 TDFN) U2 0 Not installed, MAX9716EUA (8 µMAX®) U3 0 Not installed, MAX9716EBL (9 UCSP™) — 2 Shunts — 1 PCB: MAX9716/7 EVALUATION KIT μMAX is a registered trademark and UCSP is a trademark of Maxim Integrated Products, Inc. Component Suppliers SUPPLIER PHONE WEBSITE AVX Corporation 843-946-0238 www.avxcorp.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX9716/MAX9717 when contacting these component suppliers. 19-3233; Rev 2; 10/20 Evaluates: MAX9716/MAX9717A/B/C/D MAX9716 Evaluation Kit Quick Start The MAX9716 EV kit is fully assembled and tested. Follow these steps to verify board operation. Do not turn on the power supply until all connections are completed. Recommended Equipment Detailed Description Jumper Selection Jumper JU1 controls the IN+ pin (MAX9716) or BTL/SE pin (MAX9717). See Table 1 for JU1 function. ●● 2.7V to 5.5V, 1A power supply Jumper JU2 controls the SHDN pin of the MAX9716/ MAX9717 IC. See Table 2 for JU2 functions. ●● Audio source (i.e., CD player, cassette player) ●● 4Ω/8Ω speaker Gain Settings (MAX9716/MAX9717A) ●● Headphone with 3.5mm plug (MAX9717 only) 1) Verify that JU2 has a shunt across pins 1 and 2 (SHDN = high). 2) Verify that JU1 has a shunt across pins 1 and 3 (IN+ = BIAS). 3) Connect the speaker across OUT+ and OUT-. 4) Connect the 5.0V power supply to the VCC pad and the power-supply ground to the GND pad. 5) Connect the audio source to VIN- pad. 6) Turn on the power supply, and then turn on the audio source. 7) Plug in the headphone for the headphone mode (MAX9717 only). R1 and R2 set the gain of the EV kit. The EV kit comes with R1 and R2 equal to 10kΩ, setting the BTL gain to 2V/V. To change the output-voltage gain, choose R2 between 10kΩ to 50kΩ. The BTL output gain is determined by the following equation: AV = 2 x (R2/R1) where AV is the desired BTL output-voltage gain. For the MAX9717A, the gain of single-ended mode is set by AV = R2/R1. Evaluating MAX9717A/B/C/D To evaluate the MAX9717A with the MAX9716 EV kit, replace the MAX9716ETA with a MAX9717AETA. Change jumper JU1 position according to Table 1. To evaluate the MAX9717B/C/D with the MAX9716 EV kit, replace the MAX9716ETA with a MAX9717BETA/ MAX9717CETA/MAX9717DETA, remove input and feedback resistors R1 and R2, then short the R1 pads. The MAX9717B/C/D has internally fixed BTL gains of 6dB, 9dB, and 12dB, respectively. Change jumper JU1 position according to Table 1. Table 1. JU1 Functions JU1 SHUNT POSITION IN+ PIN (MAX9716) BTL/SE PIN (MAX9717) Pins 1 and 2 Not allowed BTL/SE = VCC, single-ended output mode Pins 1 and 3 (default) IN+ = BIAS Not allowed Pins 1 and 4 Not allowed BTL/SE = GND, BTL output mode Table 2. JU2 Functions JU2 SHUNT POSITION SHDN PIN EV KIT OUTPUT Pins 1 and 2 (default) Connected to VCC Enabled Pins 2 and 3 Connected to GND Disabled www.maximintegrated.com Maxim Integrated │  2 MAX9716 Evaluation Kit Evaluates: MAX9716/MAX9717A/B/C/D Figure 1. MAX9716 EV Kit Schematic www.maximintegrated.com Maxim Integrated │  3 Evaluates: MAX9716/MAX9717A/B/C/D MAX9716 Evaluation Kit 1” 1” Figure 2. MAX9716 EV Kit Component Placement Guide— Component Side Figure 3. MAX9716 EV Kit PC Board Layout—Component Side 1” Figure 4. MAX9716 EV Kit PC Board Layout—Solder Side www.maximintegrated.com Maxim Integrated │  4 Evaluates: MAX9716/MAX9717A/B/C/D MAX9716 Evaluation Kit Revision History REVISION NUMBER REVISION DATE 0 3/04 Initial release 1 8/09 Updated figures 2 10/20 Updated Ordering Information table DESCRIPTION PAGES CHANGED — 3, 4 1 For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2020 Maxim Integrated Products, Inc. │  5