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Texas Instruments TPA2028D1YZFEVM manual

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Table of contents for the manual

  • Page 1

    User's Guide SLOU283 – February 2010 TPA2028D1YZFEVM Contents 1 Introduction .................................................................................................................. 1 2 Operation ..................................................................................................................... 2 3 TPA2028D1YZFEVM[...]

  • Page 2

    Operation www.ti.com 1.2 TPA2028D1YZFEVM Specifications V DD Supply voltage range –0.3 V to 6 V I DD Supply current 2 A Maximum P o Continuous output power per channel, 8 Ω , Vdd = 5.0 V, THD + N = 10% 1.7 W V I Audio Input Voltage 0.5 V to V DD - 0.5 V RL Minimum load impedance 8 Ω 2 Operation The TPA2028D1YZFEVM can be evaluated in a stand-[...]

  • Page 3

    www.ti.com Operation 5. Powering the EVM: • The EVM can be powered via USB connection or by external power supply: (a) Via USB power: Install shunt for USBPWR if USB power is used. (b) External power supply: connect an external regulated power supply adjusted for 2.5 V –5.5 V to the VDD and GND banana jacks, taking care to observe marked polari[...]

  • Page 4

    Operation www.ti.com 2.1.3 Using the Software 1. Start the TPA2028D1 Interface by clicking the Start menu and clicking on the TPA2028D1 Interface icon. Figure 3. Starting the Software 2. The TPA2028D1 software interface is as shown in Figure 4 . 4 TPA2028D1YZFEVM SLOU283 – February 2010 Submit Documentation Feedback Copyright © 2010, Texas Instr[...]

  • Page 5

    www.ti.com Operation Figure 4. Software Interface NOTE: The TPA2028D1 powers up with the amplifier in software shutdown. To hear an output, uncheck shutdown. 3. Uncheck and check SPK_EN to place the Class-D output in and out of CHANNEL SHUTDOWN. 4. Click Shutdown to place the TPA2028D1 in and out of SOFTWARE SHUTDOWN. 5. Adjust the Attack Time, Rel[...]

  • Page 6

    Operation www.ti.com • Save Script can record the current register values. Select Save Script >> Click the folder icon to browse to the place where you want to save the script >> name the file in text format, then select OK to save. • Load Script can load the previously saved script to program the entire register file. Select Load S[...]

  • Page 7

    P1 . 0 USB+ VD D JP 2 S1 C5 0603 1000pfd/50V C4 0603 1000pfd/50V C6 0603 4700pfd/50V C7 0603 4700pfd/50V G ND GND GND GND GND GND GND GND GND GND GND R1 0603 100K C1 0603 1.0ufd/10V C2 0603 1.0ufd/10V C3 0603 1.0ufd/10V R2 D N P 0805 1.0K R3 D N P 0805 1.0K RCA (Bl ack) IN FR O M T A S1 02 0 G ND Vd d G ND DNP JP _IN DNP JP _V DD DNP JP _O UT G ND [...]

  • Page 8

    USB+ P1.0 MRE SET ~ JP 4 +3 .3 VD +3.3VD +3.3 VD +3.3VD +3.3VD +3.3VD +3.3VD GN D GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND GND 27.4 0603 R8 27.4 0603 R9 S2 3.3V/500mA SOP8- D VR 1 100K 0603 R1 3 100K 0603 R1 1 3.09K 0603 R1 0 1.50K 0603 R7 T AS 10 20 B PF B 24LC64-I/SN SOP8 -D(SOI C) U2 600 OHM S 0805 FB 3 600 OHM S 0805 FB 4[...]

  • Page 9

    D B D B www.ti.com TPA2028D1YZFEVM PCB Layers 4 TPA2028D1YZFEVM PCB Layers Figure 8. TPA2028DYZF1EVM – YZF-Device Top Layer Figure 9. TPA2028D1YZFEVM – YZF-Device Bottom Layer 9 SLOU283 – February 2010 TPA2028D1YZFEVM Submit Documentation Feedback Copyright © 2010, Texas Instruments Incorporated[...]

  • Page 10

    TPA2028D1YZFEVM Parts List www.ti.com 5 TPA2028D1YZFEVM Parts List Table 1. Bill of Materials for TPA2028D1YZFEVM Ref Des Description QTY MFR Part No. MFR Vendor Part No. Vendor TI SEMICONDUCTORS U5 1.7 W Mono speaker driver W/AGC I2C CTRL, 1 TPA2028D1YZF Texas TPA2028D1YZF Texas WCSP9-YZF ROHS Instruments Instruments VR1 VOLT REG 3.3V 500mA LDO fa[...]

  • Page 11

    www.ti.com TPA2028D1YZFEVM Parts List Table 1. Bill of Materials for TPA2028D1YZFEVM (continued) Ref Des Description QTY MFR Part No. MFR Vendor Part No. Vendor TESTPOINTS AND SWITCHES SCL, SDA, PC Testpoint, white, ROHS 4 5002 Keystone 5002K Digi-Key TP OUTM, Electronics TP OUTP TP GND PC Testpoint, black, ROHS 1 5001 Keystone 5001K Digi-Key Elect[...]

  • Page 12

    EVALUATION BOARD/KIT IMPORTANT NOTICE Texas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling th[...]