Texas Instruments TPA2006D1 Bedienungsanleitung
User's GuideSLOU187 – October 2006
TPA2006D1 Audio Power Amplifier EVM
This document provides an overview of the Texas Instruments (TI) TPA2006D1 audioamplifier evaluation module. It includes a list of EVM features, a brief illustrateddescription of the module, and a list of EVM specifications.
Contents1 Feature Highlights .................................................................................. 22 Operation ............................................................................................ 43 Related Documentation From Texas Instruments ............................................ 11
List of Figures
1 The TI TPA2006D1 Audio Amplifier Evaluation Module ....................................... 32 Quick Start Platform Map .......................................................................... 53 Quick Start Module Map ........................................................................... 74 TPA2006D1 EVM Connected for Stereo BTL Output ......................................... 85 TPA2006D1 EVM Schematic Diagram .......................................................... 96 TPA2006D1 EVM Top Layer .................................................................... 107 TPA2006D1 EVM Bottom Layer ................................................................ 11
List of Tables
1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA2006D1 EVM .42 Platform Jumper and Switch Settings for the TPA2006D1 EVM ............................. 63 TPA2006D1 EVM Parts List ....................................................................... 9
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1 Feature Highlights
1.1 Description
Feature Highlights
The TI TPA2006D1 audio amplifier evaluation module and the TI plug-n-play audio amplifier evaluationplatform include the following features:•TPA2006D1 Low-Voltage Audio Power Amplifier Evaluation Module– 3 mm ×3 mm DRB package– Fully differential filter-free Class-D amplifier– Single channel, bridge-tied load (BTL)– 2.5-V to 5.5-V operation– 1.45-W output power into 8 Ωat 5 V, BTL– Internal depop and quick start-up circuitry– Internal thermal and short-circuit protection– Module gain is set at 2 V/V– 1.8-V logic level on Shutdown pin; 5-V tolerant•Quick and Easy Configuration With the TI Plug-n-Play Audio Amplifier Evaluation Platform– Evaluation module is designed to simply plug into the platform, automatically making all signal,control, and power connections.– Platform provides flexible power options.– Jumpers on the platform select power and module control options.– Switches on the platform route signals.– Platform provides quick and easy audio input and output connections.•Platform Power Options– Onboard 9-V battery– External 5-V to 15-V (V
CC
) supply inputs– External regulated V
DD
supply input– Socket for onboard 5-V/3.3-V V
DD
voltage regulator EVM– Onboard overvoltage and reverse polarity power protection•Platform Audio Input and Output Connections– Left and right RCA phono jack inputs– Miniature stereo phone jack input– Left and right RCA phono jack outputs– Left and right compression speaker terminal outputs– Miniature stereo headphone jack output
The TPA2006D1 audio power amplifier evaluation module is a complete, low-power single-channel audiopower amplifier. It consists of the TI TPA2006D1 1.45-W low-voltage audio power amplifier IC in a verysmall DRB package, along with a small number of other parts mounted on a circuit board that isapproximately 1.25 in. by 1.125 in (32 mm x 29 mm) (see Figure 1 ).
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Feature Highlights
NOTE: Due to the small size of the DRB IC package, the standard part number TPA6002D1DRB is replaced withthe code AAOI.
Figure 1. The TI TPA2006D1 Audio Amplifier Evaluation Module
Single in-line header pins are mounted to the underside of the module circuit board. These pins allow theEVM to be plugged into the TI plug-n-play audio amplifier evaluation platform or to be wired directly intoexisting circuits and equipment when used stand-alone.
The platform, which has room for a pair of TPA2006D1 evaluation modules, is a convenient vehicle fordemonstrating TI's audio power amplifier and related evaluation modules. The EVMs simply plug into theplatform, which automatically provides power to the modules and connects them to a versatile array ofstandard audio input and output jacks and connectors. Easy-to-use configuration controls allow theplatform and EVMs to quickly model many possible end-equipment configurations.
There is nothing to build, nothing to solder, and nothing but the speakers included with the platform tohook up.
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1.2 TPA2006D1 EVM Specifications
2 Operation
2.1 Precautions
Operation
VALUE UNIT
V
DD
Supply voltage range 2.5 to 5.5 VPower supply current rating required 500 mAP
O
Continuous output power, 8 ΩBTL, V
DD
= 5 V 1.45 WV
I
Audio input voltage 0 to V
DD
, max VZ
L
Minimum load impedance 8 Ω
Follow the steps in this section to prepare the TPA2006D1 audio amplifier EVM for use. Using theTPA2006D1 EVM with the TI plug-n-play audio amplifier evaluation platform is a quick and easy way toconnect power, signal and control inputs, and signal outputs to the EVM, using standard connectors.However, the audio amplifier evaluation module can be used stand-alone by making connections directlyto the module pins, and it can be wired directly into existing circuits or equipment.
The platform switch and jumper settings shown in Table 1 are typical for the TPA2006D1 EVM. Theycause the TPA2006D1 amplifier IC on the EVM to shut down when a plug is inserted into platformheadphone jack J10.
Table 1. Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA2006D1 EVM
EVM JP6 JP7 JP8 S2 S3
TPA2006D1 Mute X
(1)
Lo See
(2)
X
(1)
(1)
X = Don't care(2)
Set S2 to ON when signal conditioning board is installed in U1; set S2 to OFF when no signal conditioning board is installed.
CAUTION
Power Supply Input Polarity and Maximum Voltage
Always ensure that the polarity and voltage of the external power connected toV
CC
power input connector J1, J2, and/or V
DD
power input connector J6 arecorrect. Overvoltage or reverse-polarity power applied to these terminals canopen onboard soldered-in fuses and cause other damage to the platform,installed evaluation modules, and/or the power source.
CAUTION
Inserting or Removing EVM Boards
Do not insert or remove EVM boards with power applied–damage to the EVMboard, the platform, or both may result.
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Signal Conditioning
****CAUTION****
Do not insert or remove
EVM boards with power
applied
ICC
JP4
F1
VR1
R1
JP3
JP2
JP1
AC/DC
(J2)
VCC(J1)
D1
D2
D3
D4 J2
J3 J4 J5
AC/DC
In
VCC
In
+
J1
DC
SOURCE
LED1
VCC
LED2
VDD
R2
JP5
IDD
B1
U6
POWER
SUPPLY
U3 U4
U5
U1
U2
Audio
Power
Amps
On
Off
Conditioning
S2
J7 J8 Right
Out
Left
Out
+−+
−
JP6
Mode
Mute
Spk(U2-U4)
JP8
J9 Left
Out
JP7
S3
HP
Source
U2-U4
U5
Polarity
Lo
Hi
HP(U5)
C3 C2
++
R3
R5
J10
Stereo
HP Out
TP1
GND
Plug-N-Play Audio Amplifier
Evaluation Platform
SLOP097 Rev. C.1
Stereo
In
Right
In Left
In
J6
In/Out
VDD
F2
VR2 +
DC
Power
In/Out
Speaker
Output
Headphone
Output
Audio
Input
Power
Input
Batt
C1+
Right
Out
On
Off Pwr
S1
TEXAS
INSTRUMENTS
1997
R4
6a
1
3
6b
6b
6b 6b
89
10
9
2
4
5
2.2 Quick Start List for Platform
Operation
Figure 2. Quick Start Platform Map
Follow these steps when using the TPA2006D1 EVM with the TI plug-n-play audio amplifier evaluationplatform (see the platform user's guide, SLOU011 , for additional details). Numbered callouts for selectedsteps are shown in Figure 2 .
Platform preparations:
1. Ensure that all external power sources are set to off and that the platform power switch S1 is set to off.2. Install a TPA2006D1 module in platform sockets U3 and U4 for stereo operation (or a module in eitherU3 or U4 for single channel operation), taking care to align the module pins correctly.3. Use switch S2 to select or bypass the signal conditioning EVM (U1).4. Set control signal polarity jumper JP8 to Lo.5. Set jumper JP6 to select the mute control input (which causes the TPA2006D1 to shut down if a plug isinserted into platform headphone jack J10).
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2.3 Quick Start List for Stand-Alone
Operation
Table 2. Platform Jumper and Switch Settings for the TPA2006D1 EVM
EVM JP6 JP7 JP8 S2 S3
TPA2006D1 Mute X
(1)
Lo See
(2)
X
(1)
(1)
X = Don't care(2)
Set S2 to ON when signal conditioning board is installed in U1; set S2 to OFF when no signal conditioning board is installed.
Selecting and connecting the power supply:6a. Connect an external regulated power supply set to a voltage between 2.5 V and 5.5 V to platformV
DD
power input connector J6, taking care to observe marked polarity,OR6b. Install a voltage regulator EVM (SLVP097 or equivalent.) in platform socket U6. Install a 9-Vbattery in B1 or connect a 7 V–12 V power source to a platform V
CC
power input J1 or J2 andjumper the appropriate power input (see platform user's guide).Inputs and Outputs Setup:7. Ensure that signal source level is set to minimum.8. Connect the audio source to left and right RCA phono jacks J3 and J5 or to stereo miniaturephone jack J4.9. Connect 8 Ω–32 Ωspeakers to left and right RCA jacks J7 and J9 or to stripped wire connector J8.Power-Up Procedure:
10. Verify correct voltage and input polarity and set the external power supply to on. If V
CC
and anon-board regulator EVM are used to provide V
DD
, set platform power switch S1 to on.Platform LED2 lights, indicating the presence of V
DD
, and the evaluation modules installed on theplatform begin operation.11. Adjust the signal source level as needed.
Follow these steps to use the TPA2006D1 EVM stand-alone or when connecting it into existing circuits orequipment. Connections to the TPA2006D1 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.Numbered callouts for selected steps are shown in Figure 3 .
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5
4
6
2
Operation
NOTE: Due to the small size of the DRB IC package, the standard part number TPA6002D1DRB is replaced withthe code AAOI.
Figure 3. Quick Start Module Map
Power Supply Setup1. Ensure that all external power sources are set to off.2. Connect an external regulated power supply set to 5 V to the module V
DD
and GND pins, takingcare to observe marked polarity.Setting the Inputs and Outputs3. Ensure that the signal source level is set to minimum.4. Connect the positive lead from the audio source to module IN+ pin, negative lead to the IN– pin.5. Connect the SHUTDOWN pin through a normally open switch to GND.6. Connect an 8 Ω–32 Ωspeaker to the module OUT+ and OUT– pins.Power-Up Procedure
7. Verify correct voltage, input polarity; set external power supply to on. The EVM begins operation.8. Adjust the signal source level as needed.
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2.4 References
2.4.1 TPA2006D1 EVM Connected for Stereo BTL Output
Audio
Input
(Left)
External Mute Control
Right
Audio
Input
(Right)
5 Vdc
Left
5 Vdc
Operation
NOTE: Due to the small size of the DRB IC package, the standard part number TPA6002D1DRB is replaced withthe code AAOI.
Figure 4. TPA2006D1 EVM Connected for Stereo BTL Output
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2.4.2 TPA2006D1 EVM Schematic Diagram
2.4.3 TPA2006D1 Audio Power Amplifier Evaluation Module Parts List
Operation
Figure 5. TPA2006D1 EVM Schematic Diagram
Table 3. TPA2006D1 EVM Parts List
(1)
Manufacturer/ Digi-KeyReference
(2)
Description Size Qty
Part Number Number
AVX Digi-KeyC1, C2, C4 Capacitor, 0.22 µF, ±10%, 10V, X7R, nonpolarized SMD
(3)
0603 3
0603ZC224KAT2A 478-1243-1-ND
Kemet Digi-KeyC5 Capacitor, 10 µF, 10V, SMD A 1
T491A106K010AT 399-3684-1-ND
Panasonic Digi-KeyR1, R2 Resistor, 150k Ω, 1/10 W, 1%, SMD 0603 2
ERJ-3EKF1503V P150KHTR-ND
Panasonic Digi-KeyR5 Resistor, 100k Ω, 1/16 W, 1%, SMD 0603 1
ERJ-3EKF1003V P100KHTR-ND
Panasonic Digi-KeyS1 Momentary switch, SMD (low profile) 1
EVQ-PJS04K P8048SCT-ND
TIU1 Integrated Circuit, TPA2006D1, mono Class-D audio amplifier 1
TPA2006DRB
(4)
Sullins Digi-KeyTerminal post headers 7
PTC36SABN S1022-36-ND
PCB1 Printed Circuit Board, TPA2006D1DRB EVM 1
(1)
All items are SMD except terminal posts.(2)
R3, R4, and C3 pads are available so that TPA6205 can evaluated using this board.(3)
Substitute only with 10% capacitors.(4)
Due to the small size of the SON DRB package, the standard part number TPA2006D1DRB is replaced with the code AAOI.
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2.4.4 TPA2006D1 EVM PCB Layers
Operation
The following illustrations depict the TPA2006D1 EVM PCB layers and silkscreen. These drawings are notto scale. Gerber plots can be obtained from www.ti.com .
Figure 6. TPA2006D1 EVM Top Layer
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