Texas Instruments DRV600EVM User Manual Download Page 12

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6

Design Documentation

6.1

Schematic

GND

GND

GND

GND

GND

GND

+3.3V

+3.3V

GND

GND

GND

GND

GND

GND

Line Driver

Input

Output

1.8V to 4.5V

Power supply

J22

Phono socket

J22

Phono socket

2

3

4

1

R11

220R

R11

220R

1

2

J21

Phono socket

J21

Phono socket

2

3

4

1

C12

1uF

C12

1 F

m

2

1

U1

DRV600

C1P

1

PGND

2

C1N

3

NC

4

PVSS

5

NC

6

SVSS

7

NC

8

OUT

L

9

SVDD

10

OUTR

11

NC

12

INL

13

SDR

14

INR

15

NC

16

SGND

17

/SDL

18

PVDD

19

NC

20

Power

P

AD

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

Phono socket

J11

Phono socket

2

3

4

1

C13

1uF

C13

1 F

m

2

1

R12

220R

R12

220R

1

2

C17

1nF

C17

1nF

2

1

C16

1uF

C16

1 F

m

2

1

J12

Phono socket

J12

Phono socket

2

3

4

1

Design Documentation

This section includes a schematic for the DRV600EVM as well as the bill of materials (BOM) and the PCB
design specifications.

Figure 16. DRV600EVM Schematic

DRV600EVM User's Guide

12

SLOU205 – July 2007

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Summary of Contents for DRV600EVM

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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