Texas Instruments | TPA3008D2EVM - | User Guides | Texas Instruments TPA3008D2EVM - User guides

Texas Instruments TPA3008D2EVM - User guides
User’s Guide
July 2004
HPL − Audio Power Amplifiers
SLOU171
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,
enhancements, improvements, and other changes to its products and services at any time and to discontinue
any product or service without notice. Customers should obtain the latest relevant information before placing
orders and should verify that such information is current and complete. All products are sold subject to TI’s terms
and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI
deems necessary to support this warranty. Except where mandated by government requirements, testing of all
parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for
their products and applications using TI components. To minimize the risks associated with customer products
and applications, customers should provide adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right,
copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process
in which TI products or services are used. Information published by TI regarding third-party products or services
does not constitute a license from TI to use such products or services or a warranty or endorsement thereof.
Use of such information may require a license from a third party under the patents or other intellectual property
of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of information in TI data books or data sheets is permissible only if reproduction is without
alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction
of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for
such altered documentation.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that
product or service voids all express and any implied warranties for the associated TI product or service and
is an unfair and deceptive business practice. TI is not responsible or liable for any such statements.
Following are URLs where you can obtain information on other Texas Instruments products and application
solutions:
Products
Applications
Amplifiers
amplifier.ti.com
Audio
www.ti.com/audio
Data Converters
dataconverter.ti.com
Automotive
www.ti.com/automotive
DSP
dsp.ti.com
Broadband
www.ti.com/broadband
Interface
interface.ti.com
Digital Control
www.ti.com/digitalcontrol
Logic
logic.ti.com
Military
www.ti.com/military
Power Mgmt
power.ti.com
Optical Networking
www.ti.com/opticalnetwork
Microcontrollers
microcontroller.ti.com
Security
www.ti.com/security
Telephony
www.ti.com/telephony
Video & Imaging
www.ti.com/video
Wireless
www.ti.com/wireless
Mailing Address:
Texas Instruments
Post Office Box 655303 Dallas, Texas 75265
Copyright  2004, Texas Instruments Incorporated
EVM IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY and is not considered by TI to be fit for commercial use. As such, the goods being provided
may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective
considerations, including product safety measures typically found in the end product incorporating the goods.
As a prototype, this product does not fall within the scope of the European Union directive on electromagnetic
compatibility and therefore may not meet the technical requirements of the directive.
Should this evaluation kit not meet the specifications indicated in the EVM User’s Guide, the kit may be returned
within 30 days from the date of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE
WARRANTY MADE BY SELLER TO BUYER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED,
IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY
PARTICULAR PURPOSE.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user
indemnifies TI from all claims arising from the handling or use of the goods. Please be aware that the products
received may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction
of the product, it is the user’s responsibility to take any and all appropriate precautions with regard to electrostatic
discharge.
EXCEPT TO THE EXTENT OF THE INDEMNITY SET FORTH ABOVE, NEITHER PARTY SHALL BE LIABLE
TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
TI currently deals with a variety of customers for products, and therefore our arrangement with the user is not
exclusive.
TI assumes no liability for applications assistance, customer product design, software performance, or
infringement of patents or services described herein.
Please read the EVM User’s Guide and, specifically, the EVM Warnings and Restrictions notice in the EVM
User’s Guide prior to handling the product. This notice contains important safety information about temperatures
and voltages. For further safety concerns, please contact the TI application engineer.
Persons handling the product must have electronics training and observe good laboratory practice standards.
No license is granted under any patent right or other intellectual property right of TI covering or relating to any
machine, process, or combination in which such TI products or services might be or are used.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright  2004, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the supply voltage range specified in this user’s
guide.The supply voltage range should be 8.5 V to 18 V, and supply current (Icc) should be
no greater than 3 A maximum.
Exceeding the specified input range may cause unexpected operation and/or irreversible
damage to the EVM. If there are questions concerning the input range, please contact a TI
field representative prior to connecting the input power.
Applying loads outside of the specified output range may result in unintended operation and/or
possible permanent damage to the EVM. Please consult the EVM User’s Guide prior to
connecting any load to the EVM output. If there is uncertainty as to the load specification,
please contact a TI field representative.
During normal operation, some circuit components may have case temperatures greater than
60°C. The EVM is designed to operate properly with certain components above 60°C as long
as the input and output ranges are maintained. These components include but are not limited
to linear regulators, switching transistors, pass transistors, and current sense resistors. These
types of devices can be identified using the EVM schematic located in the EVM User’s Guide.
When placing measurement probes near these devices during operation, please be aware
that these devices may be very warm to the touch.
Mailing Address:
Texas Instruments
Post Office Box 655303
Dallas, Texas 75265
Copyright  2004, Texas Instruments Incorporated
Information About Cautions and Warnings
Preface
Read This First
Information About Cautions and Warnings
This book may contain cautions and warnings.
This is an example of a caution statement.
A caution statement describes a situation that could potentially
damage your software or equipment.
This is an example of a warning statement.
A warning statement describes a situation that could potentially
cause harm to you.
The information in a caution or a warning is provided for your protection.
Please read each caution and warning carefully.
FCC Warning
This equipment is intended for use in a laboratory test environment only. It generates, uses, and can radiate radio frequency energy and has not been tested
for compliance with the limits of computing devices pursuant to subpart J of
part 15 of FCC rules, which are designed to provide reasonable protection
against radio frequency interference. Operation of this equipment in other environments may cause interference with radio communications, in which case
the user at his own expense will be required to take whatever measures may
be required to correct this interference.
v
Related Documentation From Texas Instruments
Electrostatic Sensitive Devices
This EVM contains components that can potentially be damaged by
electrostatic discharge. Always transport and store the EVM in its
supplied ESD bag when not in use. Handle using an antistatic
wristband. Operate on an antistatic work surface. For more
information on proper handling, refer to SSYA008.
Related Documentation From Texas Instruments
- TPA3008D2 data sheet (SLOS435)
vi
Contents
Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
1.1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2
TPA3008D2EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
2
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1
Quick Start List for Stand-Alone Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.1 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.2 Inputs and Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.3 Evaluation Module Preparations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.4 Control Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.5 Control Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1.6 Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2-2
2-2
2-2
2-2
2-2
2-3
2-3
3
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1
TPA3008D2EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2
EVM PCB Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3
TPA3008D2EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
3-2
3-3
3-4
Figures
1−1
1−2
3−1
3−2
3−3
The TI TPA3008D2 Audio Power Amplifier EVM (Top View) . . . . . . . . . . . . . . . . . . . . . . . . .
The TI TPA3008D2 Audio Power Amplifier EVM (Bottom View) . . . . . . . . . . . . . . . . . . . . .
TPA3008D2EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TPA3008D2EVM (Top Layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TPA3008D2EVM (Bottom Layer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
1-2
3-2
3-3
3-3
Tables
2−1
3−1
TPA3008D2 Gain Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
TPA3008D2EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
vii
viii
Chapter 1
Introduction
This chapter provides a brief description of the TPA3008D2EVM.
Topic
Page
1.1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
1.2
TPA3008D2EVM Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Introduction
1-1
Description
1.1 Description
The TPA3008D2 audio power amplifier evaluation module is a 10-watt per
channel class-D stereo audio power amplifier complete with a small number
of external components mounted on a circuit board that measures
approximately 2-1/4 inches by 1-3/4 inches (Figure 1−1 and Figure 1−2).
Figure 1−1. The TI TPA3008D2 Audio Power Amplifier EVM (Top View)
Figure 1−2. The TI TPA3008D2 Audio Power Amplifier EVM (Bottom View)
1.2 TPA3008D2EVM Specifications
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 V to 18 V
Input voltage range, VI (GAIN0, GAIN1, LINN, LINP, RINN, RINP) . . . . . . . . . . . . . . . . . −0.3 V to 6 V
VI (SHUTDOWN) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to VCC + 0.3 V
Supply current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 A Max
Continuous output power per channel, PO: 16 Ω, VCC = 17 V, THD+N = 10 % . . . . . . . . . . . . . . 10 W
Minimum load impedance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Ω
1-2
Chapter 2
Operation
This chapter describes how to operate the TPA3008D2EVM.
Topic
2.1
Page
Quick Start List for Stand-Alone Operation . . . . . . . . . . . . . . . . . . . . . . 2-2
Operation
2-1
Quick Start List for Stand-Alone Operation
2.1 Quick Start List for Stand-Alone Operation
Follow these steps to use the TPA3008D2EVM stand-alone or when
connecting it into existing circuits or equipment. Connections to the EVM
module header pins can be made via individual sockets, wire-wrapping, or
soldering to the pins, either on the top or the bottom of the module circuit board.
2.1.1
Power Supply
1) Ensure that all external power sources are set to OFF.
2) Connect an external regulated power supply, between 8.5 V and 18 V, to
the module VCC and GND pins taking care to observe marked polarity.
2.1.2
Inputs and Outputs
1) Ensure that the audio signal source level adjustments are set to minimum.
2) Connect the right and left positive audio source to the module RIN+ and
LIN+ pins, respectively. Connect the right and left negative audio source
to the module RIN− and LIN− pins, respectively.
3) If using single-ended inputs, ground the LIN+ and RIN+ pins at the source
and connect the signal source to RIN− and LIN−. Conversely, RIN− and
LIN− should be grounded if RIN+and LIN+ are connected to the signal
source.
Note:
If RIN+ and LIN+ on the EVM are connected to ground, the RINP and LINP
pins on the TPA3008D2 IC are ac-grounded through C2 and C3.
2.1.3
Evaluation Module Preparations
1) Adjust the signal source level as needed.
2.1.4
Control Inputs
Note:
See the TPA3008D2 data sheet for logic threshold voltage ratings.
1) SHUTDOWN: This pin is active low. A low on this pin shuts down the
amplifier; a high on this pin places the amplifier in the active state. Leaving
this pin floating also allows normal amplifier operation. Holding down
switch S1 places the amplifier in the shutdown state. Releasing S1 returns
the amplifier to the active state. The absolute maximum voltage on this
terminal is VCC + 0.3 V.
2) GAIN0, GAIN1: These pins control the amplifier gain. See Table 2−1.
2-2
Quick Start List for Stand-Alone Operation
2.1.5
Control Output
1) FAULT: This test point can be used to monitor the state of the FAULT
output. A logic high on this pin indicates a short-circuit condition on one
or both of the outputs. A logic low indicates normal amplifier operation. For
automatic recovery from a short-circuit event, install a jumper in the J3
location.
Table 2−1. TPA3008D2 Gain Settings
GAIN1 (J1)
GAIN0 (J2)
GAIN (dB)
ON
ON
15.3
ON
OFF
21.2
OFF
ON
27.2
OFF
OFF
31.8
- ON = Jumper installed
OFF = Jumper removed
2.1.6
Power Up
1) Verify correct voltage and input polarity and set the external power supply
to ON. The EVM should begin operation.
2) Adjust the signal source level as needed.
3) Adjust the amplifier gain by installing or removing J1 and J2 jumpers. See
Table 2−1.
Operation
2-3
2-4
Chapter 3
Reference
This chapter provides reference information for the TPA3008D2EVM.
Topic
Page
3.1
TPA3008D2EVM Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
3.2
EVM PCB Layers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
3.3
TPA3008D2EVM Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Reference
3-1
TPA3008D2EVM Schematic
3.1 TPA3008D2EVM Schematic
ROUT−
L1
L2
C22
1 nF
C23
1 nF
*
220 nF
GND
VCC
ROUT+
Figure 3−1. TPA3008D2EVM Schematic
VCC
220 nF
C15
10 µF
C9
C18
*
C10
0.1 µF
C19
0.1 µF
SHUTDOWN
SHUTDOWN
C1
RIN−
C2
RIN+
C3
LIN−
J3
R4
120 kΩ
0.47 µF
NC
V2P5
AVCC
LINP
NC
LINN
NC
TPA3008D2
AVDDREF
R3
120 kΩ
C7
1 µF
NC
RINP
0.47 µF
0.47 µF
C4
VCLAMPR
RINN
0.47 µF
C5
LIN+
0.47 µF
BSRN
PVCCR
ROUTN
PVCCR
ROUTN
PGNDR
PGNDR
ROUTP
ROUTP
PVCCR
R2
120 kΩ
S1
PVCCR
BSRP
VCC
VCC
C16
10 µF
C13
0.1 µF
AGND
NC
AVDD
GAIN0
COSC
GAIN1
ROSC
FAULT
AGND
J2
1 µF
C14
C6
220 pF
R1
J1
120 kΩ
C8
1 µF
BSLN
PVCCL
PVCCL
LOUTN
LOUTN
PGNDL
PGNDL
LOUTP
LOUTP
R5
0Ω
PVCCL
BSLP
VCLAMPL
PVCCL
NC
FAULT
Connected at PowerPad
Q1
C11
C20
C26
DNI
220 nF
PVCC
C12
0.1 µF
C17
10
µF
0.1 µF
3-2
C25
1 nF
C24
1 nF
L4 *
LOUT−
LOUT+
PGND
220 nF
* L3
* Chip ferite bead (example: Fair−Rite 251206700743)
C21
PVCC
AGND
EVM PCB Layers
3.2 EVM PCB Layers
Figure 3−2. TPA3008D2EVM (Top Layer)
Figure 3−3. TPA3008D2EVM (Bottom Layer)
Reference
3-3
TPA3008D2EVM Parts List
3.3 TPA3008D2EVM Parts List
Table 3−1. TPA3008D2EVM Parts List
Reference
Size
Qty
C1−C5
Capacitor, ceramic,
0.47 µF, +80%/–20%,
Y5V, 16 V
0603
5
Panasonic
ECJ−1VF1C474Z
Digi-Key/
PCC1792
C6
Capacitor, ceramic,
220 pF, ±5%, 50 V
0603
1
Panasonic
ECJ−1VC1H221J
Digi-Key/
PCC221ACV
C7, C8
Capacitor, ceramic, 1.0
µF, +80%/–20%, Y5V,
50 V
0805
2
Taiyo Yuden
UMK212F105ZG−T
TeCal/
UMK212F105ZG-T
C9−C13
Capacitor, ceramic, 0.1
µF, +80%/−20%, Y5V,
50 V
0603
5
Panasonic
ECJ−1VF1H104Z
Digi-Key/
PCC2153
C14
Capacitor, ceramic,
1.0 µF, +80%/−20%,
Y5V, 10 V
0603
1
Murata
GRM188F51A105ZA01D
Digi-Key/
490-1585-2
C15−C17
Capacitor, ceramic, 10
µF, +80%/–20%, Y5V,
25 V
1210
3
Panasonic
ECJ−4YF1E106Z
Digi-Key/
PCC2171
C18−C21
Capacitor, ceramic,
0.22 µF, +80%/−20%,
Y5V, 16V
0603
4
Panasonic
ECJ−1VF1C224Z
Digi-Key/
PCC1790
C22−C25
Capacitor, ceramic,
1000 pF, ±10%, X7R,
50 V
0603
4
Panasonic
ECJ−1VB1H102K
Digi-Key/
PCC1772
C26
Do not install
FAULT
Test point, 0.04”
mounting hole
1
Farnell
240−345
J1, J2, J3
Header, 2 position,
male
2mm
3
Norcomp
2163−36−01−P2
J1, J2, J3
(shunts)
SHUNT, 2MM
2mm
3
Specialty
2JM−G
L1−L4
Ferrite bead, 0.05 Ω
DCR, 70 Ω at
100 MHz, 3A
1206
4
Fair−rite
2512067007Y3
Mouser/
623−2512067007Y3
Q1
N-channel MOSFET
SOT−523
1
Diodes, Inc.
2N7002T−7
Digi-Key/
2N7002TDI
PnP pins
Headers, 0.1 in.
centers, 1/2 in. long
11
Samtec
SW−19−8−G−S
R1−R4
Resistor, chip,
120 kΩ, 1/16 W, 5%
0603
4
Panasonic
ERJ−3GEYJ124V
Digi-Key/
P120KG
R5
Resistor, 0 Ω, jumper,
1/10 W, 5%
0603
1
Panasonic
ERJ−3GEY0R00V
Digi-Key/
P0.0G
S1
Switch, momentary,
SMD, low profile
1
Panasonic
EVQ−PPBA25
Digi-Key/
P8086S
U1
TPA3008D2PHP
1
TI
TPA3008D2PHP
3-4
Description
48-pin
QFP
Mfg.
Part #
Vendor Part #
Digi−Key/
2163S−36
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising