EV7782DF-01A MPS | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 6

Technical content

Stereo Bridged Audio Amplifier EV7782DF-01A Rev. 1.0 www.MonolithicPower.com 1 10/19/2007 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2007 MPS. All Rights Reserved. The Future of Analog IC Technology

DESCRIPTION

The EV7782DF-01A is a stereo evaluation board for MPS’ MP7782 Class D Bridged Audio Amplifier. It is a second generation, fully integrated audio amplifier which dramatically reduces solution size by integrating four 180m Ω Power MOSFETs in a space saving TSSOP20 Package. It utilizes a full bridge output structure capable of delivering 40W into 8 Ω speakers. As in all other MPS Class D Audio Amplifiers, this device exhibits the high fidelity of a Class AB amplifier with an efficiency of 90%. The circuit is based on the MPS’ proprietary variable frequency modulation topology (patents pending) that delivers excellent PSRR, fast response time and operates on a single power supply. ELECTRICAL SPECIFICATIONS Parameter Symbol Value Units Supply Voltage V DD 9.5 to 24 V

FEATURES

  • 2 x 40W Peak, 2 x 30W Continuous into 8 Ω with VDD = 24V
  • 90% Efficiency
  • THD+N = 0.1%
  • 9.5V to 24V Supply Voltage Operation
  • Full Bridge Output Drive
  • 4 Integrated 180m Ω Switches
  • Turn-On / Turn-Off Click and Pop Suppression
  • Integrated Short Circuit Protection
  • Integrated Thermal Shutdown
  • Mute / Standby Mode
  • Thermally Enhanced TSSOP20F Package with Exposed Pad

APPLICATIONS

  • Flat Panel LCD and PDP Displays
  • Notebook and Multimedia Computers
  • Televisions
  • Home Stereos
  • DVD and VCD Players
  • Game Devices and Systems
  • Subwoofer “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. EV7782DF-01A EVALUATION BOARD 100 0.1

0.01 THD+N (%)

0.1 1 10 100 OUTPUT POWER (W) MP7782-EC01 THD+N vs Output Power Dimensions (L x W x H) 4.0” x 3.5” x 1.0” (10cm x 9cm x 2.5cm) Board Number MPS IC Number EV7782DF-01A 2 x MP7782DF

EV7782DF-01A – 40W CLASS D STEREO BRIDGED AUDIO AMPLIFIER EV7782DF-01A Rev. 1.0 www.MonolithicPower.com 2 10/19/2007 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2007 MPS. All Rights Reserved. EVALUATION BOARD SCHEMATIC

EV7782DF-01A – 40W CLASS D STEREO BRIDGED AUDIO AMPLIFIER EV7782DF-01A Rev. 1.0 www.MonolithicPower.com 3 10/19/2007 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2007 MPS. All Rights Reserved. EV7782DF-01A BILL OF MATERIALS Qty Ref Value Description Package Manufacturer P/N Distributor P/N

2 C10, C28 1nF Ceramic Capacitor, 50V,

C8, C13, C18, C26, C31 1µF Ceramic Capacitor, 16V, X5R 0603 TDK C1608X5R1C105K Digikey 445-1416-1-ND

4 C6, C14,

C24, C32 2pF Ceramic Capacitor, 50V, NPO 0603 Panasonic ECJ-1VC1H020C Digikey PCC020CVCT-ND

4 C36, C37,

C38, C39 3.9nF Ceramic Capacitor, 50V, X7R 0603 Panasonic ECJ-1VB1H392K Digikey PCC1779CT-ND

4 C4, C15,

C22, C33 15pF Ceramic Capacitor, 50V, NPO 0603 TDK C1608C0G1H150J Digikey 445-1271-1-ND

4 C1, C16,

C19, C34 Do Not Stuff 0603

4 C5, C11,

C23, C29 1µF Ceramic Capacitor, 25V, X7R 1206 TDK C3216X7R1E105K Digikey 445-1381-1-ND

4 C7, C12,

C25, C30 2.2µF Electrolytic Capacitor, 50V, NHG Radial Panasonic ECA-1HHG2R2 Digikey P5564-ND

4 C2, C17,

C20, C35 0.22µF Film Capacitor, 50V, V-Series Radial Panasonic ECQ-V1H224JL Digikey P4667-ND 2 C9, C27 0.68µF Film Capacitor, 50V, V-Series Radial Panasonic ECQ-V1H684JL Digikey P4673-ND

2 C3, C21 470µF Electrolytic Capacitor, 25V,

1 C45 100µF Electrolytic Capacitor, 35V,

1 CN1 6-Pin Header, 0.1" D1, D8, D9, D16, D17, D18 Diode Switch, 75V, 200mW SOD323 Diodes Inc. 1N4148WS-7 Digikey 1N4148WSDICT-ND

4 D2, D5,

D10, D13 Diode Schottky, 40V, 1A SOD123 Diodes Inc. 1N5819HW-7 Digikey 1N5819HWDICT-ND

4 D4, D7,

D12, D15 Diode Zener, 6.2V, 200mW SOD323 Diodes Inc. BZT52C6V2S-7 Digikey BZT52C6V2SDICT- ND

4 D3, D6,

D11, D14 Diode Schottky, 30V, 1A SMB IR MBRS130LTR Digikey MBRS130LCT-ND 1 D21 Diode Zener, 12V, 200mW SOD323 Diodes Inc. BZT52C12S-7 Digikey BZT52C12SDICT-ND 1 D19 Diode Zener, 2.7V, 200mW SOD323 Diodes Inc. BZT52C2V7S-7 Digikey BZT52C2V7SDICT- ND 1 D20 Diode Zener, 2.4V, 200mW SOD323 Diodes Inc. BZT52C2V4S-7 Digikey BZT52C2V4SDICT- ND

2 FB1, FB2 Ferrite Bead, 6A 1206 Steward

1 JP1 3-Pin Header, 0.1"

EV7782DF-01A – 40W CLASS D STEREO BRIDGED AUDIO AMPLIFIER EV7782DF-01A Rev. 1.0 www.MonolithicPower.com 4 10/19/2007 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2007 MPS. All Rights Reserved. EV7782DF-01A BILL OF MATERIALS (continued) Qty Ref Value Description Package Manufacturer P/N Distributor P/N

4 L1, L2, L3,

L4 10µH Inductor, 2.6A, 8RDY Radial Toko A7040HN-100M

1 Q1 Transistor, PNP, 40V SOT-23 Fairchild

1 Q2 Transistor, NPN, 40V SOT-23 Fairchild

4 R2, R9,

R12, R20 0Ω Film Resistor, 5% 0603 Panasonic ERJ-3GEY0R00V Digikey P0.0GCT-ND R5, R16, R34, R33, R35 1kΩ Film Resistor, 5% 0603 Panasonic ERJ-3GEYJ102V Digikey P1.0KGCT-ND R4, R6, R15, R17, R22, R24, R36, R38, R39 10kΩ Film Resistor, 5% 0603 Panasonic ERJ-3GEYJ103V Digikey P10KGCT-ND R3, R7, R14, R18, R21, R23, R30, R31 20kΩ Film Resistor, 5% 0603 Panasonic ERJ-3GEYJ203V Digikey P20KGCT-ND 1 R26 20.5k Ω Film Resistor, 1% 0603 Panasonic ERJ-3EKF2052V Digikey P20.5KHCT-ND R1, R8, R11, R19, R25 100kΩ Film Resistor, 1% 0603 Panasonic ERJ-3EKF1003V Digikey P100KHCT-ND

4 R10, R27,

R28, R29 5.1Ω Film Resistor, 5% 1206 Panasonic ERJ-8GEYJ5R1V Digikey P5.1ECT-ND

2 U1, U2 Class D Audio Amplifier TSSOP20 MPS

EV7782DF-01A – 40W CLASS D STEREO BRIDGED AUDIO AMPLIFIER NOTICE: The information in this document is subject to change wi thout notice. Please contact MPS for current specifications. Users should warrant and guarantee that third party Intellectual Property rights ar e not infringed upon when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV7782DF-01A Rev. 1.0 www.MonolithicPower.com 6 10/19/2007 MPS Proprietary Information. Unaut horized Photocopy and Duplication Prohibited. © 2007 MPS. All Rights Reserved. QUICK START GUIDE This board is factory set for 24V operation. 1. Power Requirements a. Power supply: 24V. b. 0V to 1V RMS (max) audio signal source. c. Speaker: 8 Ω or greater load resistance. 2. Setup Conditions a. Connect the outputs to the external speakers. b. Adjust the power supply to 24V, (do not turn on). c. Connect the power supply to the V DD terminals. d. Disable the amplifier by removing the enable jumper JP1. e. Connect the audio input signal source to the amplifier inputs (IN1, IN2). f. Turn on the power supply to apply power to the board. 3. Music Turn-On Sequence a. Enable the amplifier by placing jumper JP1. b. Audio should be heard from the speaker(s) 4. Music Turn-Off Sequence a. Set the enable switch to the DISABLE position, again by removing jumper JP1.