User's Guide
SLOU179–December 2005
TPA3100D2 Audio Power Amplifier Evaluation Module
With LC Filter
Contents
1
2
3
4
5
Introduction .......................................................................................... 2
Operation ............................................................................................ 3
List of Figures
1
2
3
4
5
List of Tables
1
2
Gain Settings........................................................................................ 4
SLOU179–December 2005
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
1
Operation
1.2 TPA3100D2 EVM Specifications
VCC
ICC
PO
RL
Supply voltage range
10 V to 26 V
4 A max
20 W
Supply current
Continuous output power per channel, 8 Ω, VCC = 18 V, THD + N = 3.5%
Minimum load impedance
3.2 Ω
2
Operation
2.1 Quick Start List for Stand-Alone Operation
Follow these steps to use the TPA3100D2 EVM stand-alone or when connecting it into existing circuits or
equipment. Connections to the EVM module can be made using banana plugs for the power supply and
output connections. The inputs accept standard RCA plugs.
2.1.1
Power Supply
1. Ensure that all external power sources are set to OFF.
2. Connect an external regulated power supply adjusted from 10 V – 26 V to the module VCC (J7) and
GND (J8) banana jacks taking care to observe marked polarity.
2.1.2
Evaluation Module Preparations
2.1.2.1
Inputs and Outputs
1. If connecting to a fully differential input or a grounded input (the shield of the RCA jack is GND),
remove jumpers J9 and J10 from the EVM board. These are located next to the input jacks J1 and J2.
If connecting to a floating source, like a portable CD player, install J9 and J10. After setting the J9 and
J10 jumpers appropriately, connect the audio source to J1 (RIGHT) and J2 (LEFT).
2. Connect a speaker across ROUT+ (J6) and ROUT- (J5). Connect another speaker across LOUT+ (J3)
and LOUT- (J4).
3. Install both gain jumpers GAIN0 (J12) and GAIN1 (J13). This sets the gain of the amplifier to the
lowest level, 20 dB.
4. Remove the jumper at MSTR/SLV (J14). If only one TPA3100D2 is evaluated, it must be configured as
the master. If multiple EVMs are connected together using the SYNC output (TP2), the additional
EVMs must be configured in the slave mode by installing the J14 jumper.
5. Remove the jumper (J11). This places the device in a latched mode when a short-circuit event occurs.
2.1.2.2
Control Inputs
1. SD: This terminal is active low. A low signal on the device terminal (< 0.8 V) shuts down the amplifier;
a high signal (> 2 V) on the device terminal places the amplifier in the active state. Holding down
switch S1 places the amplifier in the SHUTDOWN state. Releasing S1 returns the amplifier to the
active state.
2. MUTE: This terminal is active high. A high signal (> 2 V) on this terminal immediately terminates audio
playback through the speakers and the outputs stop switching; a low signal (< 0.8 V) enables the
device. S2 on the EVM controls the state of the MUTE terminal. Holding down switch S2 places the
amplifier in the MUTE state. Releasing S2 returns the amplifier to the active state.
Installing a jumper in J12 or J13 sets the respective terminal to GND. Removing the jumper sets the
respective terminals to VREG (~4 V). Removing jumpers INCREASES the gain while installing jumpers
DECREASES the gain. Logic levels are TTL compatible.
4. MSTR/SLV: This terminal is used with the SYNC (TP2) output to synchronize the switching
frequencies of multiple TPA3100D2 devices. For example, with 2 devices, one would be configured as
the MASTER by removing the J14 jumper. The other EVM would be configured as the SLAVE device
by installing a jumper in the J14 location. Logic levels are TTL compatible.
SLOU179–December 2005
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
3
Operation
Table 1. Gain Settings
GAIN1 (J13)(1)
GAIN0 (J12)(1)
Amplifier Gain (dB)
ON
ON
ON
OFF
ON
20
26
32
36
OFF
OFF
OFF
(1)
OFF = Jumper removed; ON = Jumper installed
2.1.2.3
Control Outputs
1. FAULT: This pin is a TTL compatible output for reporting a short-circuit fault on the output. If the
outputs are shorted to GND, VCC, or to each other, this terminal goes high and remains high until one
of the following operations is performed: power is cycled, SHUTDOWN is cycled, or MUTE is cycled. If
jumper J11 is installed, the MUTE terminal is connected directly to the FAULT terminal and a
short-circuit fault is automatically cleared when it occurs.
2.1.3
Power Up
1. Verify correct voltage and input polarity and turn the external power supplies on. The EVM should
begin operation.
2. Adjust the input signal.
3. Adjust the control inputs to the desired settings.
4. If no sound is audible, check the position of the MSTR/SLV (J14) jumper. It should be removed if
evaluating a single EVM.
5. Adjust the amplifier gain by installing/removing the gain jumpers, J12 and J13.
4
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
SLOU179–December 2005
TPA3100D2 EVM Schematic
3
TPA3100D2 EVM Schematic
J6
ROUT+
J5
ROUT-
VCC
S1
0.47mF
C23
VREG
S2
C9 C8
0.1
mF
0.1
mF
J11
TP1
FAULT
VCC
0.22mF
0.22mF
C4
C3
J9
J7
VCC
NC
NC
C11
C18
RINN
PVCCR
1mF
1.0mF
RIN
C12
PVCCR
RINP
220mF
C21
1.0mF
PGNDR
AGND
C13
LIN
J2
LINP
PGNDR
1.0mF
C16
J8
GND
1mF
C14
VCLAMPR
LINN
TPA3100D2
1.0mF
VCLAMPL
NC
J10
J12
C15
1mF
PGNDL
GAIN0
J13
J14
GAIN1
PGNDL
220mF
C22
PVCCL
MSTR/SLV
TP2
1mF
C19
SYNC
PVCCL
NC
NC
VCC
Connected at PowerPad
and then to J8 with single
point connection.
C1
C2
0.22mF
0.22mF
VREG
AGND
PGND
0.1
mF
0.1
mF
C6 C7
C24
0.47mF
J4
LOUT-
J3
LOUT+
Figure 3. TPA3100D2 EVM Schematic
SLOU179–December 2005
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
5
TPA3100D2 EVM Parts List
5
TPA3100D2 EVM Parts List
Table 2. TPA3100D2 EVM Parts List
Ref.
C1 – C4
Description
Size
0603
0603
0603
0603
0805
0805
1210
Radial
Radial
0805
0603
Qty
Mfg
Part #
Vendor #
Digi-key/445-1318-2
Digi-key/445-1311-2
Digi-key/445-1314-2
Digi-key/445-1321-2
Digi-key/445-1364-2
Digi-key/445-1367-2
Digi-key/490-1891-2
Digi-key/P10297
Capacitor, ceramic, 0.22-µF, ±10%, X7R, 25-V
Capacitor, ceramic, 0.01-µF, ±10%, X7R, 50-V
Capacitor, ceramic, 0.1-µF, ±10%, X7R, 50-V
Capacitor, ceramic, 1.0-µF, ±10%, X5R, 10-V
Capacitor, ceramic, 1.0-µF, +80%/–20%, Y5V, 50-V
Capacitor, ceramic, 1.0-µF, +80%/–20%, Y5V, 16-V
Capacitor, ceramic, 10-µF, +80%/–20%, Y5V, 50-V
Capacitor, electrolytic, 220-µF, low impedance
Inductor, 33-µH, radial lead, ferrite material, shielded
Capacitor, ceramic, 0.47-µF, ±10%, X5R, 35-V
Resistor, chip, 100 kΩ, 1/16 W, 5%
4
TDK
TDK
TDK
TDK
TDK
TDK
C1608X7R1C224KT
C1608X7R1H103KT
C1608X7R1H104KT
C1608X5R1A105KT
C2012Y5V1H105Z
C2012Y5V1C105Z
GRM32DF51H106ZA01L
EEU-FC1V221
C5
1
C6 – C9
C10 – C14
C17 – C19
C15, C16
C20
4
5
3
2
1
Murata
Panasonic
Toko
C21, C22
L1–L4
2
4
A7503AY-330M
C23, C24
R1 – R6
J1, J2
2
Taiyo-Yuden GMK212BJ474KG
6
Panasonic
Switchcraft
Johnson
ERJ-3GEYJ104V
PJRAN1X1U03
111-2223-001
2163-36-01-P2
2JM-G
Digi-Key/P100KG
Newark/16C1860
Digi-Key/J587
Phono jack, PC mount, switched
2
J3 – J8
J9 – J14
Banana jack w/knurled thumbnut (nickel plate)
Header, 2 position, male
6
2 mm
2 mm
6
Norcomp
Specialty
Digi-Key / 2163S-36
J9 –
Shunt, 2 mm
6
J14(shunts)
TP1, TP2
S1, S2
Test points, 0.040" mounting hole
Switch, momentary, SMD, low profile
Standoffs, 5/8" length, 4-40 thread
Screws, 4-40, .375
1
2
4
4
1
Farnell
240-345
Panasonic
Keystone
EVQ-PPBA25
1808
Digi-Key/P8086S
(Newark) 89F1934
(Digi-Key) H781-ND
U1
TPA3100D2RGZ
48-pin QFN
TI
TPA3100D2RGZ
8
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
SLOU179–December 2005
TPA3100D2 EVM Parts List
FCC Warnings
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.
EVM TERMS AND CONDITIONS
Texas Instruments (TI) provides the enclosed Evaluation Module and related material (EVM) to you, the user, (you or user)
SUBJECT TO the terms and conditions set forth below. By accepting and using the EVM, you are indicating that you have read,
understand and agree to be bound by these terms and conditions. IF YOU DO NOT AGREE TO BE BOUND BY THESE TERMS
AND CONDITIONS, YOU MUST RETURN THE EVM AND NOT USE IT.
This EVM is provided to you by TI and is intended for your INTERNAL ENGINEERING DEVELOPMENT OR EVALUATION
PURPOSES ONLY. It is provided “AS IS” and “WITH ALL FAULTS.” It is not considered by TI to be fit for commercial use. As
such, the EVM may be incomplete in terms of required design-, marketing-, and/or manufacturing-related protective considerations,
including product safety measures typically found in the end product. As a prototype, the EVM 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 EVM not meet the specifications indicated in the EVM User’s Guide, it may be returned within 30 days from the date of
delivery for a full refund of any amount paid by user for the EVM, which user agrees shall be user’s sole and exclusive remedy.
THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY TI TO USER, AND IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY, FITNESS
FOR ANY PARTICULAR PURPOSE OR NON-INFRINGEMENT.
TI shall have no obligation to defend any claim arising from the EVM, including but not limited to claims that the EVM infringes third
party intellectual property. Further, TI shall have no liability to user for any costs, losses or damages resulting from any such
claims. User shall indemnify and hold TI harmless against any damages, liabilities or costs resulting from any claim, suit or
proceeding arising from user’s handling or use of the EVM, including but not limited to, (i) claims that the EVM infringes a third
party’s intellectual property, and (ii) claims arising from the user’s use or handling of the EVM. TI shall have no responsibility to
defend any such claim, suit or proceeding.
User assumes all responsibility and liability for proper and safe handling and use of the EVM and the evaluation of the EVM. TI
shall have no liability for any costs, losses or damages resulting from the use or handling of the EVM. User acknowledges that the
EVM may not be regulatory compliant or agency certified (FCC, UL, CE, etc.). Due to the open construction of the EVM it is the
user’s responsibility to take any and all appropriate precautions with regard to electrostatic discharge.
EXCEPT TO THE EXTENT OF THE USER’S INDEMNITY OBLIGATIONS SET FORTH ABOVE, NEITHER PARTY SHALL BE
LIABLE TO THE OTHER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES WHETHER TI IS
NOTIFIED OF THE POSSIBILITY OR NOT.
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.
User agrees to read the EVM User’s Guide and, specifically, the EVM warnings and Restrictions notice in the EVM User’s Guide
prior to handling the EVM and the product. This notice contains important safety information about temperatures and voltages.
It is user’s responsibility to ensure that persons handling the EVM and the product have electronics training and observe good
laboratory practice standards.
By providing user with this EVM, product and services, TI is NOT granting user any license in any patent or other intellectual
property right.
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2005, Texas Instruments Incorporated
EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the supply voltage range of –0.3 V to 30 V and input voltage range of –0.3 V to 4.5 V.
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.
SLOU179–December 2005
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
9
TPA3100D2 EVM Parts List
EVM WARNINGS AND RESTRICTIONS (continued)
During normal operation, some circuit components may have case temperatures greater than 85°C. The EVM is designed to
operate properly with certain components above 85°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 2005, Texas Instruments Incorporated
10
TPA3100D2 Audio Power Amplifier Evaluation Module With LC Filter
SLOU179–December 2005
IMPORTANT NOTICE
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enhancements, improvements, and other changes to its products and services at any time and to discontinue
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TI warrants performance of its hardware products to the specifications applicable at the time of sale in
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