Texas Instruments TPA3008D2 - Manual
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Table of Contents:
- Page 4 – FUNCTIONAL BLOCK DIAGRAM
- Page 5 – PHP PACKAGE
- Page 6 – TERMINAL FUNCTIONS; PIN NAME
- Page 7 – TYPICAL CHARACTERISTICS; TABLE OF GRAPHS
- Page 11 – COMMON-MODE REJECTION RATIO
- Page 12 – APPLICATION INFORMATION; Figure 16. Stereo Class-D With Differential Inputs
- Page 13 – Traditional Class-D Modulation Scheme; This section focuses on the class-D operation of the TPA3008D2.; Inductive Load With No Input; R losses in the load.
- Page 14 – , and the time at each voltage is half the period for; instead of 2 x V; . As the output power increases, the pulses widen, making the
- Page 15 – Effects of Applying a Square Wave Into a Speaker; Efficiency; When to Use an Output Filter for EMI Suppression
- Page 16 – settings, the input impedance could increase as high as 165 k; Table 1. Gain Setting; INPUT IMPEDANCE; the -3 dB or cutoff frequency changes when changing gain steps.
- Page 17 – Power Supply Decoupling,C
- Page 18 – Differential Input; SHUTDOWN OPERATION; and may not be used for powering any other circuitry.
- Page 19 – shorts. When a short circuit is detected on the
- Page 20 – BASIC MEASUREMENT SYSTEM
- Page 21 – DIFFERENTIAL INPUT AND BTL OUTPUT; Figure 21. Audio Measurement Systems
- Page 22 – DC POWER LOSS; AWG Size
- Page 23 – Table 3. Typical RC Measurement Filter Values; MEASUREMENT
- Page 25 – PACKAGING INFORMATION; PACKAGE OPTION ADDENDUM
- Page 26 – TAPE AND REEL BOX INFORMATION; PACKAGE MATERIALS INFORMATION
- Page 31 – IMPORTANT NOTICE; Products
www.ti.com
FEATURES
DESCRIPTION
APPLICATIONS
10
µ
F
220 nF
220 nF
PVCC
PVCC
220 nF
220 nF
PVCC
PVCC
220 pF
Left Differential
Inputs
Right Differential
Inputs
Shutdown/Mute
Gain
Control
BSLP
PVCCL
PVCCL
LOUTP
LOUTP
PGNDL
PGNDL
LOUTN
LOUTN
PVCCL
PVCCL
BSLN
TPA3008D2
VCLAMPR
SHUTDOWN
V2P5
RINP
LINN
LINP
AVDDREF
NC
GAIN0
GAIN1
NC
NC
AVDD
AGND
COSC
ROSC
AVCC
VCLAMPL
BSRP
PVCCR
PVCCR
ROUTP
ROUTP
PGNDR
PGNDR
ROUTN
ROUTN
PVCCR
PVCCR
BSRN
RINN
AVCC
AGND
10
µ
F
0.1
µ
F
0.1
µ
F
0.47
µ
F
0.47
µ
F
0.47
µ
F
0.47
µ
F
0.47
µ
F
0.1
µ
F
0.1
µ
F
10
µ
F
10
µ
F
1
µ
F
120 k
Ω
1
µ
F
NC
NC
NC
FAULT
0.1
µ
F
10
µ
F
1
µ
F
Control
†Optional output filter for EMI suppression
†
TPA3008D2
SLOS435A – MAY 2004 – REVISED JULY 2004
10-W STEREO CLASS-D AUDIO POWER AMPLIFIER
•
10-W/Channel Into an 16-
Ω
Load From a
The TPA3008D2 is a 10-W (per channel) efficient,
17-V Supply
class-D audio amplifier for driving bridged-tied stereo
speakers. The TPA3008D2 can drive stereo speakers
•
Up to 92% Efficient, Class-D Operation
as low as 8
Ω
. The high efficiency of the TPA3008D2
Eliminates Need For Heatsinks
eliminates the need for external heatsinks when
•
8.5-V to 18-V Single-Supply Operation
playing music.
•
Four Selectable, Fixed Gain Settings
The gain of the amplifier is controlled by two gain
•
Differential Inputs Minimizes Common-Mode
select pins. The gain selections are 15.3, 21.2, 27.2,
Noise
and 31.8 dB.
•
Space-Saving, Thermally Enhanced
The outputs are fully protected against shorts to
PowerPAD™ Packaging
GND, VCC, and output-to-output shorts. A fault ter-
•
Thermal and Short-Circuit Protection
minal allows short-circuit fault reporting and automatic
With Auto Recovery Option
recovery. Thermal protection ensures that the maxi-
mum junction temperature is not exceeded.
•
Pinout Similar to TPA3000D Family
•
LCD Monitors and TVs
•
All-In-One PCs
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PowerPAD is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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Summary
www.ti.com Biases and References TTL Input Buffer (VCC Compl) Start-up and Protection Logic SC Detect Thermal VDDok RINP RINN RampGenerator COSC ROSC VCCok 5-V LDO AVCC AVDD AVDD VDD and PWM Mode Logic Gain Adj. Gain Control Deglitch and PWMMode Logic Gain Adj. LINP LINN Gate Drive VClamp Gen Gate D...
www.ti.com 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 48 47 46 45 44 43 42 41 40 39 38 37 1 2 3 4 5 6 7 8 9 10 11 12 BSRN PVCCR PVCCR ROUTN ROUTN PGNDR PGNDR ROUTP ROUTP PVCCR PVCCR BSRP VCLAMPR NC NC NC NC AGND COSC ROSC AGND VCLAMPL SHUTDOWN RINN RINP V2P5 LINP LINN NC...
www.ti.com TPA3008D2 SLOS435A – MAY 2004 – REVISED JULY 2004 TERMINAL FUNCTIONS PIN NAME PIN NUMBER I/O DESCRIPTION AGND 26, 30 - Analog ground for digital/analog cells in core AV CC 33 - High-voltage analog power supply, not connected internally to PVCCR or PVCCL 5-V Regulated output for use by int...
