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Texas Instruments TPA6136A2EVM - (Rev. A) User guides
User's Guide
SLOU255A – June 2009 – Revised December 2009
TPA6136A2 EVM
This user's guide describes the operation of the TPA6136A2 evaluation module (EVM) for the evaluation
of the Texas Instruments TPA6136A2 amplifier and includes the EVM schematic, board art, and bill of
materials.
1
2
3
4
Contents
Introduction ..................................................................................................................
Operation .....................................................................................................................
Reference ....................................................................................................................
TPA6136A2EVM Bill of Materials .........................................................................................
1
2
4
7
List of Figures
1
Top Assembly – X-Ray View .............................................................................................. 5
2
Layer 2 – X-Ray View ...................................................................................................... 6
3
Layer 3– X-Ray View ....................................................................................................... 6
4
Bottom Layer – X-Ray View ............................................................................................... 6
1
TPA6136A2EVM Bill of Materials ......................................................................................... 7
List of Tables
1
Introduction
This section provides an overview of the Texas Instruments (TI) TPA6136A2 DirectPath™ stereo
headphone amplifier evaluation module (EVM). It includes a brief description of the module and a list of
EVM specifications.
1.1
Description
The TPA6136A2 is a DirectPath™ stereo headphone amplifier capable of delivering 25 mW/Ch into 16 Ω
and requires no output DC blocking capacitors.
The TPA6136A2 EVM is a complete, stand-alone audio board. It contains the TPA6136A2 WCSP (YFF)
DirectPath™ stereo headphone amplifier. All components are Pb-free.
1.2
EVM Specifications
Supply voltage range, VDD
2.5 V to 5.5 V
Supply current, IDD
0.5 A, maximum
Continuous output power, PO, VDD = 5 V, 16 Ω, THD+N = 1 %
25 mW
DirectPath is a trademark of Texas Instruments.
SLOU255A – June 2009 – Revised December 2009
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TPA6136A2 EVM
1
Operation
2
www.ti.com
Operation
This section describes how to operate the TPA6136A2EVM.
2.1
Quick-Start List for Stand-Alone Operation
Use the following steps when operating the TPA6136A2EVM stand alone or when connecting the EVM
into an existing circuit.
2.1.1
Power and Ground
1. Verify that the external power sources are set to OFF.
2. Set the power supply voltage between 2.5 V and 5.5 V. When connecting the power supply to the
EVM, first connect the ground connection to the GND connector, and then connect the positive supply
to the VDD connector. Verify that the connections are made to the correct pin connector.
2.1.2
Inputs and Outputs
2.1.2.1
1.
2.
3.
4.
Audio
Verify that the audio source is set to the minimum level.
Connect the audio source to the inputs, INL and INR.
Connect INL+ and INR+ to ground for single-ended input.
Connect a headset or other load to the headphone jack.
INRINR+
INL+
INL-
2.1.2.2
Shutdown Controls
1. Shutdown is controlled by pushbutton S1. Press and hold S1 to place the TPA6136A2 in shutdown.
Release S1 to reactivate the TPA6136A2.
2.1.3
Gain Setting
Set the gain of the TPA6136A2 at GAIN. Set GAIN = LOW for 0 dB. Set GAIN = HIGH for 6 dB.
2.1.4
HI-Z Control
Output will be in high-Z state when HI-Z = HIGH. Set HI-Z = LOW to disable the high-Z mode.
2
TPA6136A2 EVM
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Operation
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2.1.5
Power Up
1. Verify the correct connections as described in Sections 2.1.1 and 2.1.2.
2. Verify the correct voltage setting of the power supply and turn ON the power supply. Proper operation
of the EVM should begin.
3. Adjust the audio signal source as needed.
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TPA6136A2 EVM
3
INR
INL
SGND
GND
GND
C1
0603
0603
0603
Copyright © 2009, Texas Instruments Incorporated
0603
Vdd
HI-Z
1.0ufd/10V
C6
1.0ufd/10V
C5
1.0ufd/10V
C4
1.0ufd/10V
C3
GND
100pfd/100V
0603
0603
GND
D4
C4
B4
A4
Vdd
RIN-
RIN+
LIN+
LIN-
C3
0603
U1
A1
WCSP16-YFF
GAIN
D1
A2
1.0ufd/10V
GND
C2
SGND
220ohms/2A
AVDD
GND
D2
GAIN
Vdd
C2
A3
C1
B1
B2
B3
HPVSS
CP-
AGND
CP+
HPVDD
GND
GND
2.2ufd/10V
0603
C7
White
D3
EN
White
0603
S1
GND
GND
0603
2.2ufd/10V
C9
White
HPVDD
0603
DNP
C14
1.0ufd/10V
C8
0603
R1
100K
FB2
GND
33pfd/50V 0603
0603
C12 220ohms/2A
GND
0603
220ohms/2A
33pfd/50V
0603
C10
FB1
C11
GND
33pfd/50V
0603
C13
GND
33pfd/50V
0603
R2
1206
GND
DNP
1206
R3
GND
DNP
White
ROUT
GND
DNP
TVS2
GND
DNP
TVS1
White
LOUT
GND
White
GND1
Left
Right
GND
White
GND2
Shield
0.5in
0.5in
0.5in
0.5in 0.5in 0.5in 0.5in
GND GND GND GND
0.5in
STANDOFFS
J1
TPA6136A2 EVM
HI-Z
Vdd
4
EN
TPA6136A2EVM Schematic
LOUT
3.1
HPVSS
3
ROUT
FB3
Reference
www.ti.com
Reference
This section includes the EVM schematic, board layout reference, and parts list.
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Reference
www.ti.com
3.2
TPA6136A2EVM PCB Layers
GAIN
GAIN
HI
LOW
6dB
0dB
HI-z
HI-z
HI
Imped HI
LOW Normal
H
I
H
I
L
O
W
L
O
W
GND
GND
TPA6136A2YFFEVM
6508495 - REV B
Figure 1. Top Assembly – X-Ray View
Figure 2. Layer 2 – X-Ray View
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TPA6136A2 EVM
5
Reference
www.ti.com
Figure 3. Layer 3– X-Ray View
Figure 4. Bottom Layer – X-Ray View
6
TPA6136A2 EVM
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TPA6136A2EVM Bill of Materials
www.ti.com
4
TPA6136A2EVM Bill of Materials
Table 1. TPA6136A2EVM Bill of Materials
Manufacturer Part No.
Ref Des
Vendor Part No.
Description
Vendor
Manufacturer
TPA6136A2YFF
Qty
1
U1
TPA6136A2YFF
CAP-FREE STEREO HEADPHONE AMP
WITH DIFFERENTIAL INPUTS ROHS
Texas
Instruments
Texas Instruments
ESDALC6V1-1BT2
2
TVS1, TVS2
ESDALC6V11BT2
Mouser
ST
Microelectronics
ECJ-1VB1A105K
6
C2–C6,C8
PCC2174CT
CAP SMD0603 CERM 1.0µF 10V 10% X5R
ROHS
Digi-Key
Panasonic
GRM188R71A225KE15
D
2
C7, C9
490-4520-1
CAP SMD0603 CERM 2.2µF 10V 10% X7R
ROHS
Digi-Key
Murata
06031A101JAT2A
1
C1
478-1146-1
CAP SMD0603 CERM 100PFD 100V 5%
C0G ROHS
Digi-Key
AVX
ECJ-1VC1H330J
4
C10–C13
PCC330ACVCT
CAP SMD0603 CERM 33PFD 50V 5% NPO
ROHS
Digi-Key
Panasonic
ERJ-3GEYJ104V
1
R1
P100KGCT
Digi-Key
Panasonic
MPZ1608S221A
3
FB1–FB3
445-1565-1
Digi-Key
TDK
PBC02SAAN
5
GND, INL, INR,
Vdd, SGND
S1011E-02
HEADER THRU MALE 2 PIN 100LS GOLD
ROHS
Digi-Key
Sullins
PBC03SAAN
1
HI-Z/GAIN
S1011E-03-ND
HEADER THRU MALE 3 PIN 100LS GOLD
ROHS
Digi-Key
Sullins
STX-3000
1
J1
806-STX-3000
JACK, MINI-STEREO, ROHS
Mouser
Kycon
SPC02SYAN
6
GND, INL,
INR,Vdd, SGND,
HI-Z/GAIN
S9001
SHUNT, BLACK AU FLASH 0.100 ROHS
Digi-Key
Sullins
5002
7
EN, GND1,
GND2, LOUT,
ROUT, HPVDD,
HPVSS
5002K
PC TEST POINT, WHITE, ROHS
Digi-Key
Keystone
Electronics
TL1015AF160QG
1
S1
EG4344CT
SWITCH, MOM, 160G SMT 4×3MM ROHS
Digi-Key
E-Switch
Digi-Key
Keystone
Electronics
SEMICONDUCTORS
TRANSIENT VOLTAGE SUPPRESSION
BIDIR 6.1V 9A SOD-882 ROHS
CAPACITORS
RESISTORS
RESISTOR SMD0603 100K Ω 5% THICK
FILM 1/10W ROHS
FERRITE BEADS
FERRITE CHIP, 220 Ω 2A 100MHZ SMD
0603 ROHS
HEADERS, JACKS AND SHUNTS
TEST POINTS AND SWITCHES
STANDOFFS AND HARDWARE
2027
4
Component Count
45
SO1,SO2,SO3,S
O4
2027K
STANDOFF, 4-40, 0.5INx3/16IN, ALUM
RND F-F
COMPONENTS NOT ASSEMBLED
R2, R3, C14
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TPA6136A2 EVM
7
EVALUATION BOARD/KIT IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES
ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the product(s) must have
electronics training and observe good engineering practice standards. As such, the goods being provided are not intended to be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including product safety and environmental
measures typically found in end products that incorporate such semiconductor components or circuit boards. This evaluation board/kit does
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Should this evaluation board/kit not meet the specifications indicated in the User’s Guide, the board/kit may be returned within 30 days from
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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
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Please read the User’s Guide and, specifically, the Warnings and Restrictions notice in the User’s Guide prior to handling the product. This
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FCC Warning
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION PURPOSES
ONLY and is not considered by TI to be a finished end-product fit for general consumer use. It generates, uses, and can radiate radio
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EVM WARNINGS AND RESTRICTIONS
It is important to operate this EVM within the input voltage range of HPVSS - 0.3 V to HPVDD + 0.3 V and the output voltage range of
HPVSS to HPVDD.
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 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.
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Copyright 2009, Texas Instruments Incorporated
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