Cirrus-logic CRD35L01 Instrukcja Użytkownika

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http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2010
(All Rights Reserved)
1 x 1.7 W CS35L01 Amplifier Reference Design Kit
Features
Four boards provided in the CS35L01 Amplifier
Reference Design Kit
Separate boards for each mode configuration
SD, FSD, HD, and FHD
CS35L01 produces a default +6-dB Gain
Delivers 1.4 W/Ch into 8 at 1% THD+N
Delivers 1.7 W/Ch into 8 at 10% THD+N
Differential mono analog inputs
Demonstrates recommended 4-layer layout
and grounding arrangements
Optional output filter connections
Optional gain adjustment resistors
Powered by a single 2.5- to 5.5-V power supply
Device shutdown control
Description
The CRD35L01 demonstrates the CS35L01 high-effi-
ciency Hybrid Class-D audio amplifier. This reference
design implements a single-channel amplifier that deliv-
ers 1.7 W per full-bridge channel into 8- loads using a
single +5-V supply.
Differential audio inputs can easily be connected
through the J1 header. If desired, the gain can be ad-
justed through the optional input resistors.
The -SD, -FSD, -HD, or -FHD suffix designates the
CS35L01’s operational mode. Each of the four boards
is configured to operate in each of the four correspond-
ing modes of the CS35L01 device.
Device shutdown control is available through the J2
header.
ORDERING INFORMATION
CRD35L01 CS35L01 Reference Design
Shutdown
Control (J2)
Speaker
Output (J3)
Optional
Gain
Adjustment
Analog
Input (J1)
CS35L01
(SD Mode)
Optional
Output
Filter
VBATT
Power (J4)
Shutdown
Control (J2)
Speaker
Output (J3)
Optional
Gain
Adjustment
Analog
Input (J1)
CS35L01
(FSD Mode)
Optional
Output
Filter
VBATT
Power (J4)
Shutdown
Control (J2)
Speaker
Output (J3)
Optional
Gain
Adjustment
Analog
Input (J1)
CS35L01
(HD Mode)
Optional
Output
Filter
VBATT
Power (J4)
Shutdown
Control (J2)
Speaker
Output (J3)
Optional
Gain
Adjustment
Analog
Input (J1)
CS35L01
(FHD Mode)
Optional
Output
Filter
VBATT
Power (J4)
CRD35L01
APR '10
DS914RD2
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Podsumowanie treści

Strona 1 - CRD35L01

http://www.cirrus.comCopyright  Cirrus Logic, Inc. 2010(All Rights Reserved)1 x 1.7 W CS35L01 Amplifier Reference Design KitFeatures Four boards pro

Strona 2

10 DS914RD2CRD35L015. CRD LAYOUTFigure 6. CRD35L01-SD Top Side Component PlacementFigure 7. CRD35L01-SD Bottom Side Component PlacementFigure 8. CR

Strona 3

DS914RD2 11CRD35L01Figure 12. CRD35L01-FSD Top Side Component PlacementFigure 13. CRD35L01-FSD Bottom Side Component PlacementFigure 15. CRD35L01-F

Strona 4 - 1. SYSTEM OVERVIEW

12 DS914RD2CRD35L01Figure 18. CRD35L01-HD Top Side Component PlacementFigure 19. CRD35L01-HD Bottom Side Component PlacementFigure 20. CRD35L01-HD

Strona 5

DS914RD2 13CRD35L01Figure 24. CRD35L01-FHD Top Side Component PlacementFigure 29. CRD35L01-FHD Layer 4 CopperFigure 25. CRD35L01-FHD Bottom Side Co

Strona 6

14 DS914RD2CRD35L016. REVISION HISTORYRelease ChangesRD1 – Initial ReleaseRD2 – Updated front page 1% and 10% output power numbers to match DS909A2 da

Strona 7

2 DS914RD2CRD35L01TABLE OF CONTENTS1. SYSTEM OVERVIEW ...

Strona 8 - 4. CRD SCHEMATIC

DS914RD2 3CRD35L01LIST OF TABLESTable 1. System Input and Output Connections ...

Strona 9

4 DS914RD2CRD35L011. SYSTEM OVERVIEWThe CRD35L01 reference design is a practical means for evaluating the CS35L01 high-efficiency Class-D audio am-pli

Strona 10 - 5. CRD LAYOUT

DS914RD2 5CRD35L01By adding series resistance to the input, the signal amplitude to the CS35L01 will be reduced, and willreduce the overall system gai

Strona 11

6 DS914RD2CRD35L012. GROUNDING AND POWER SUPPLY DECOUPLINGThe CS35L01 requires careful attention to power supply and grounding arrangements to optimiz

Strona 12

DS914RD2 7CRD35L013. SYSTEM CONNECTORS AND JUMPERSConnector NameReference DesignatorPin Signal DirectionConnector FunctionIN+IN-GNDJ1J1J1123InputInput

Strona 13

8 DS914RD2CRD35L014. CRD SCHEMATICFigure 3. CRD35L01-FSD SchematicFigure 2. CRD35L01-SD SchematicFigure 4. CRD35L01-HD Schematic Figure 5. CRD35L0

Strona 14 - 6. REVISION HISTORY

DS914RD2 9CRD35L014.1 Bill of MaterialsThe component listing below is shown for the four CRD35L01 board variations (-SD, -FSD, -HD, and -FHD).Unpopula

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