 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| 19-3391; Rev 0; 10/04 MAX9710 Evaluation Kit General Description The MAX9710 evaluation kit (EV kit) is a fully assembled and tested surface-mount circuit board that evaluates the MAX9710 stereo, 3W, bridge-tied load (BTL) audio power amplifier. The MAX9710 evaluation kit is designed to operate from a single 4.5V to 5.5V supply and features a 0.5A shutdown mode and a MUTE function to quickly enable or disable the MAX9710 BTL outputs. 3W into 3 Load (1% THD+N) 4W into 4 Load (10% THD+N) Low 0.005% THD+N at 1kHz Industry-Leading, Ultra-High 100dB PSRR 7mA Low Quiescent Current 0.5A Low-Power Shutdown Mode Mute Function Patented Click-and-Pop Suppression Fully Assembled and Tested Surface-Mount Board Features 4.5V to 5.5V Single-Supply Operation Evaluates: MAX9710 Ordering Information PART MAX9710EVKIT TEMP RANGE 0C to +70C IC PACKAGE 20 Thin QFN-EP* *EP = Exposed Paddle. Component List DESIGNATION QTY DESCRIPTION 0.1F 10%, 16V X7R ceramic capacitors (0603) TDK C1608X7R1C104K Taiyo Yuden EMK107BJ104KA 1.0F 10%, 6.3V X5R ceramic capacitors (0603) TDK C1608X5R0J105K Taiyo Yuden JMK107BJ105KA 100F 20%, 6.3V X5R ceramic capacitor (1210) TDK C3225X5R0J107M Taiyo Yuden JMK325BJ107M 10k 1% resistors (0603) 20k 1% resistors (0603) 3-pin headers MAX9710ETP (20-pin TQFN, 5mm x 5mm x 0.8mm) Shunts MAX9710 EV kit PC board Quick Start Recommended Equipment * * * One pair of 3, 4, or 8 speakers One variable DC power supply capable of supplying between 4.5V and 5.5V at 3A One stereo audio source (i.e., CD player, cassette player) C1, C3, C5 3 C2, C4, C6 3 Procedure The MAX9710 EV kit is fully assembled and tested. Follow the steps below to verify board operation. Do not turn on the power supply until all connections are completed: 1) Ensure MUTE is connected to SGND. 2) Ensure SHDN is connected to VDD. 3) Connect a 3, 4, or 8 speaker between OUT_+ and OUT_-. 4) Ensure that the stereo audio source is turned off. 5) Connect the disabled audio source between IN_ and GND. 6) Connect the 4.5V to 5.5V DC power supply to the VDD and GND pads. 7) Turn on the DC power supply. 8) Enable the stereo audio source. C7 1 R1, R2 R3, R4 JU1, JU2 U1 None None 2 2 2 1 2 1 Component Suppliers SUPPLIER Taiyo Yuden TDK PHONE 800-348-2496 847-803-6100 FAX 847-925-0899 847-390-4405 www.t-yuden.com www.component.tdk.com WEBSITE Note: Indicate that you are using the MAX9710 when contacting these component suppliers. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim's website at www.maxim-ic.com. MAX9710 Evaluation Kit Evaluates: MAX9710 Detailed Description The MAX9710 is an adjustable-gain, stereo Class AB speaker amplifier featuring ultra-high 100dB PSRR and ultra-low 0.005% THD+N. The device is capable of delivering 2 x 3W into a 3 load and features shutdown and mute control, comprehensive click-and-pop suppression circuitry, and thermal-overload protection. The MAX9710 EV kit has a gain of -2V/V and can be powered with a 4.5V to 5.5V single supply. 5V PVDD VDD Shutdown and Mute Control The MAX9710 EV kit provides jumpers JU1 and JU2 to control the shutdown and mute functions of the MAX9710, respectively (see Table 1 for shutdown and mute shunt positions). MAX9710 FOR OPTIMUM PERFORMANCE, AUDIO GND SHOULD HAVE A STAR CONNECTION TO THE HIGH CURRENT, AMPLIFIER PGND AT ONE POINT ONLY. PGND IS DIFFERENT FOR THE TWO AVAILABLE PACKAGES: TSSOP-EP: PIN 3 THIN QFN: PIN 6 Table 1. Shutdown Selection JUMPER SHUNT POSITION MUTE-SGND JU1 MUTE-VDD SHDN-VDD JU2 SHDN-SGND Right and left channels muted IC enabled IC disabled, powersaving mode DESCRIPTION Right and left channels unmuted PGND AUDIO SIGNAL GND Figure 1. MAX9710 Audio Ground Connection Layout Considerations To optimize the audio performance of the MAX9710, it is important to follow these layout guidelines. The MAX9710 EV kit uses two ground planes to minimize the amount of noise that is coupled into the audio signal. The two planes are star-connected at one point (GND pad). Capacitors C2, C4, C5, and C6 should be placed close to the IC. Short, wide traces should be used for power-supply inputs and amplifier outputs. The MAX9710 thin QFN package features an exposed thermal pad on its underside. This pad lowers the thermal resistance of the package by providing a directheat conduction path from the die to the PC board. Connect the exposed pad to the ground plane using multiple vias, if required. For optimum performance, connect to the ground planes as shown in Figure 1. 2 _______________________________________________________________________________________ MAX9710 Evaluation Kit Evaluates: MAX9710 OUTL+ OUTL- R4 20k C6 1F 20 PGND C1 0.1F INL R1 10k 19 OUTL+ 18 PVDD 17 OUTL- 16 N.C. 1 INL PGND 15 VDD SHDN JU2 2 VDD MUTE JU1 C2 1F BIAS SHDN 14 3 U1 N.C. N.C. 13 MAX9710 4 MUTE VDD 12 C5 0.1F C7 100F GND VDD INR C3 0.1F R2 10k 5 INR OUTR+ OUTRPGND PVDD N.C. PGND 11 6 7 8 9 10 R3 20k C4 1F OUTR+ OUTR- Figure 2. MAX9710 EV Kit Schematic _______________________________________________________________________________________ 3 MAX9710 Evaluation Kit Evaluates: MAX9710 1.0" Figure 3. MAX9710 EV Kit Component Placement Guide-- Component Side 1.0" Figure 4. MAX9710 EV Kit PC Board Layout--Component Side 1.0" Figure 5. MAX9710 EV Kit Component Placement Guide-- Solder Side 1.0" Figure 6. MAX9710 EV Kit PC Board Layout--Solder Side Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 (c) 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products. |
Price & Availability of MAX9710EVKIT
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |