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Texas Instruments DRV600EVM Скачать руководство пользователя страница 3

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1.1

DRV600EVM Features

Audio In - R

SGND

Audio In - L

SDx

Bias

Circuitry

Charge

Pump

Short-Circuit

Protection

Audio Out - R

Audio Out - L

SVSS

AV = 1.5V/V

-

SVDD

PVSS

C1P

C1N

SVSS

SVDD

Overview

•

Two-channel evaluation module, a double-sided, plated-through printed circuit board (PCB)

•

2V

RMS

line output

•

No output capacitors

•

Shutdown button

Figure 2. DRV600 Functional Block Diagram

SLOU205 – July 2007

DRV600EVM User's Guide

3

Submit Documentation Feedback

Содержание DRV600EVM

Страница 1: ...ad 7 7 THD N vs Frequency 600 load 7 8 THD N vs Frequency 600 load Using X7R Input Caps 8 9 FFT Spectrum with 60dBFS Tone 8 10 Idle Noise FFT Spectrum 9 11 Channel Separation 9 12 Frequency Response 1...

Страница 2: ...es the key parameters of the device Table 1 DRV600 Features KEY PARAMETERS Supply Voltage 1 8V to 4 5V Number of Channels 2 Load Impedance Min 600 Output Voltage 2VRMS 600 0 1 THD DYR 108dB This EVM i...

Страница 3: ...ut R Audio Out L SVSS AV 1 5V V SVDD PVSS C1P C1N SVSS SVDD Overview Two channel evaluation module a double sided plated through printed circuit board PCB 2VRMS line output No output capacitors Shutdo...

Страница 4: ...on the DRV600EVM are susceptible to damage by electrostatic discharge ESD Customers are advised to observe proper ESD handling precautions when unpacking and handling the EVM including the use of a g...

Страница 5: ...d Supply Voltage VOLTAGE CURRENT DESCRIPTION LIMITATIONS REQUIREMENT CABLE Power supply 1 8V to 4 5V 0 3A CAUTION Failure to observe ESD handling procedures may result in damage to EVM components For...

Страница 6: ...ent 10mA 1kHz 2mVRMS output voltage Supply Current 12mA 1kHz 2VRMS output voltage 1 All electrical and audio specifications are typical values Table 5 Audio Performance Data 1 AUDIO PERFORMANCE SPECIF...

Страница 7: ...01 0 001 3m 10m 100m V V RMS 1 2 4 1 8V DVDD 3 3V DVDD 4 5V DVDD 4 3 THD N vs Frequency 600 load 10 1 0 1 THD N 0 01 0 001 20 100 1k Frequency Hz 10k 20k 0 2VRMS 2VRMS DRV600EVM Performance Figure 5 T...

Страница 8: ...cost ceramic capacitor such as an X7R is used higher THD at low frequencies should be expected Y5V capacitors will show even higher THD performance and should not be used Figure 8 THD N vs Frequency 6...

Страница 9: ...20 30 40 50 60 70 80 90 100 110 120 Channel Separation dBr A 20 100 1k Frequency Hz 10k 20k DRV600EVM Performance Reference voltage is 2VRMS FFT size 16k Figure 10 Idle Noise FFT Spectrum Channel 1 o...

Страница 10: ...is used on the DRV600EVM The input impedance of the DRV600 is 15k This impedance gives a 3dB cutoff of 10Hz This result corresponds with the frequency response measurements above An RC filter is place...

Страница 11: ...erference during the enable time only two small high frequency spikes can be seen No input signal is applied The measurement results are presented both in a time domain and in a frequency domain The r...

Страница 12: ...18 PVDD 19 NC 20 PowerPAD 21 J10 Header J10 Header 1 2 C11 1uF C11 1 F m 2 1 SW1 Switch SW1 Switch 1 4 2 3 C15 1uF C15 1 F m 2 1 C14 1uF C14 1 F m 2 1 R13 100k R13 100k 1 2 C18 1nF C18 1nF 2 1 J11 Pho...

Страница 13: ...witch 6mm SMD Tactile Switch Switch Omron B3S 1000 1 PCB11 A832 PCB 001_2 00 DRV600EVM Printed Circuit Printline A832 PCB 001 2 00 Board ver 2 00 Table 9 PCB Specifications BOARD IDENTIFICATION A832 P...

Страница 14: ...the DRV600EVM tool folder on www ti com Note Board layouts are not to scale These figures are intended to show how the board is laid out they are not intended to be used for manufacturing DRV600EVM P...

Страница 15: ...t temperatures and voltages For additional information on TI s environmental and or safety programs please contact the TI application engineer or visit www ti com esh No license is granted under any p...

Страница 16: ...ce and is an unfair and deceptive business practice TI is not responsible or liable for any such statements TI products are not authorized for use in safety critical applications such as life support...

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