Related Manuals for Texas Instruments TPA0202
Summary of Contents for Texas Instruments TPA0202
- Page 1 TPA0202 Audio Power Amplifier Evaluation Module User’s Guide May 1998 Mixed-Signal Products SLOU016...
-
Page 2: Important Notice
IMPORTANT NOTICE Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is current. - Page 3 SLOU011) provides detailed information on the evaluation platform and its use with TI audio evaluation modules. TPA0202 STEREO 2-W AUDIO POWER AMPLIFIER (literature number SLOS205) This is the data sheet for the TPA0202 audio amplifier integrated circuit. FCC Warning This equipment is intended for use in a laboratory test environment only.
- Page 4 Ask questions about product op- eration or report suspected prob- lems Report mistakes in this document or any other TI documentation † Texas Instruments Product Information Center Do this. . . † hotline: Call the (972) 644–5580 Or send a fax to the PIC: (972) 480–7800...
-
Page 5: Table Of Contents
........... . . Using The TPA0202 EVM With the Plug-N-Play Evaluation Platform 3.3.1... - Page 6 TPA0202 EVM Connected for Stereo BTL Output 3–10 TPA0202 EVM Connected for Stereo Single-Ended Output Tables 2–1 Typical TI Plug-N-Play Platform Jumper and Switch Settings for the TPA0202 2–2 Typical TPA0202 EVM Jumper Settings 2–3 Platform Jumper and Switch Settings for the TPA0202 2–4...
-
Page 7: Introduction
This chapter provides an overview of the Texas Instruments (TI ) TPA0202 Audio Amplifier Evaluation Module (SLOP202). It includes a list of EVM features, a brief description of the module illustrated with a pictorial diagram, and a list of EVM specifications. -
Page 8: Feature Highlights
Feature Highlights 1.1 Feature Highlights The TI TPA0202 Audio Amplifier Evaluation Module and the TI Plug-N-Play Audio Amplifier Evaluation Platform include the following features: TPA0202 Stereo 2-W Audio Power Amplifier Evaluation Module Internal depop circuitry to eliminate turn-on transients in outputs Dual channel, bridge-tied load (BTL) or single-ended operation 3.3-V and 5-V operation... -
Page 9: Description
The TPA0202 Stereo 2-W Audio Power Amplifier Evaluation Module is a complete, 2-Watt per channel stereo audio power amplifier. It consists of the TI TPA0202 Stereo 2-W Audio Power Amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2 ½... -
Page 10: Tpa0202 Evm Specifications
TPA0202 EVM Specifications 1.3 TPA0202 EVM Specifications Supply voltage range, V .......... -
Page 11: Quick Start
The steps in this chapter can be followed to quickly prepare the TPA0202 audio amplifier EVM for use. Using the TPA0202 with the TI Plug-N-Play Audio Amplifier Evaluation Platform is a quick and easy way to connect power, signal and control inputs, and signal outputs to the EVM using standard connectors. -
Page 12: Precautions
Precautions 2.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to V input connector J6 are correct. Overvoltage or reverse-polarity power applied to these terminals can open on-board soldered-in fuses and cause other damage to the platform, installed evaluation modules, and/or the power source. -
Page 13: Quick Start List For Platform
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 TPA0202 module in platform socket U2, taking care to align the module pins correctly. 3) Use switch S2 to select or bypass the signal conditioning EVM (U1). -
Page 14: Module Preparation
S6 to OFF. 16) Set junction temperature measurement jumper S8 to OFF for normal operation. Table 2–4. Typical TPA0202 EVM Jumper Settings TPA0202 Note: S8 should remain open at all times, ON = shunt installed, OFF = open... -
Page 15: Quick Start List For Stand-Alone
2.3 Quick Start List for Stand-Alone Follow these steps to use the TPA0202 EVM stand-alone or when connecting it into existing circuits or equipment. Connections to the TPA0202 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. - Page 16 Quick Start List for Stand-Alone Evaluation Module Preparations 6) To have the module amplifier IC enter the shutdown mode when the module mute control input is activated, set shutdown jumper S1 to ON . To have the amplifier IC only mute when the module mute control input is activated, set shutdown jumper S1 to OFF .
-
Page 17: Details
This chapter provides details on the TPA0202 IC, the evaluation module, and the steps in the Quick-Start List, additional application information, and a parts list for the TPA0202 evaluation module. Topic Precautions .......... -
Page 18: Precautions
Precautions 3.1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to V input connector J6 are correct. Overvoltage or reverse-polarity power applied to these terminals can open on-board soldered-in fuses and cause other damage to the platform, installed evaluation modules, and/or the power source. -
Page 19: The Tpa0202 Audio Power Amplifier Evaluation Module
3.2 The TPA0202 Audio Power Amplifier Evaluation Module The TPA0202 Audio Power Amplifier Evaluation Module is powered by a TPA0202 stereo power amplifier capable of delivering greater than 2 W of continuous power per channel into 3- loads. The amplifier IC can be operated in either the BTL or single-ended output mode. -
Page 20: Tpa0202 Audio Amplifier Ic
LV DD 3.2.1 TPA0202 Audio Amplifier IC The TPA0202 audio amplifier IC is a CMOS device intended primarily for bridge-tied load (BTL) operation in battery-powered applications. It is supplied in a very small 24-pin TSSOP thermal surface-mount package and has been designed to operate from low supply voltages (between approximately 3 V and 5.5 V) and deliver full power at distortion levels of less than 0.1% THD+N from... -
Page 21: Depop Circuitry
Output turn-on transients can be virtually eliminated by sequencing the control inputs to the IC such that the TPA0202 amplifier is held in the single-ended output mode for a short time after the mute control pin is released (see paragraph 3.3.2.7). -
Page 22: Single-Ended Operation
A quick rule of thumb (everything else being equal): the module input signal level should be as high as possible without clipping or overloading the TPA0202 input, and the TPA0202 gain should be kept as low as possible. Details... -
Page 23: Using The Tpa0202 Evm With The Plug-N-Play Evaluation Platform
3.3 Using The TPA0202 EVM With the Plug-N-Play Evaluation Platform The TPA0202 Audio Amplifier Evaluation Module was designed to be used with the TI Plug-N-Play Audio Amplifier Evaluation Platform. It simply plugs into socket U2. The following paragraphs provide additional details for using the TPA0202 EVM with the platform. -
Page 24: Tpa0202 Module Jumper Settings And Switches
3.3.2 TPA0202 Module Jumper Settings and Switches The TPA0202 EVM is equipped with several pushbutton SPST switches and jumpers that act as SPST switches to allow module operation to be modified to suit various requirements. In the following discussion, setting a jumper to ON means that a shunt is installed across the two pins of the jumper. - Page 25 To have the module amplifier IC enter the shutdown mode when the module mute control input is activated, set shutdown jumper S1 to ON. The mute control output pin on the TPA0202 amplifier IC follows the mute control input pin and is buffered. Jumper S1 connects the mute output pin to...
- Page 26 3.3.2.5 S5 — VDD Bridge Jumper Jumper S5 connects the module LV supply line. When the TPA0202 EVM is plugged into the platform, both VDD supplies are sourced from the same platform power bus, so the state of jumper S5 is irrelevant.
-
Page 27: Signal Routing
When S3 is set to the power amplifier position (U2 – U4), the headphone jack is connected to the TPA0202 power amplifier OUT+ output lines. When a plug is inserted into the jack, signals output through J10 are returned to platform ground, requiring single-ended power amplifier operation. -
Page 28: Mute/Mode
Using The TPA0202 EVM With the Plug-N-Play Evaluation Platform 3.3.4 Mute/Mode The TPA0202 EVM is equipped with a mute control input pin. When this input is tied to V and dissipates very little power. When the EVM control input is tied to GND or allowed to float, amplifier operation resumes. - Page 29 JP6. When JP6 is set to Mute, use the following JP8 settings for the TPA0202: To mute the TPA0202 amplifier module when a plug is inserted into the headphone jack, jumper JP8 to Hi (this is the typical setting).
-
Page 30: Power Requirements
Power Requirements The TPA0202 Audio Power Amplifier Evaluation Module can operate from any voltage between approximately 3 V and 5.5 V; however, the TPA0202 amplifier IC on the module is characterized for operation at 3.3 V and 5 V. For best... -
Page 31: Inputs And Outputs
J10 to the output lines of either the headphone amplifier socket or the power amplifier sockets (Figure 3 – 5). When the TPA0202 output signal is routed to J10 by S3, signals output via J10 are returned to platform ground when a plug is inserted (Figure 3 –... -
Page 32: Using The Tpa0202 Evm Stand-Alone
Using The TPA0202 EVM Stand-Alone 3.4 Using The TPA0202 EVM Stand-Alone Using the TPA0202 Audio Power Amplifier Evaluation Module stand-alone is much the same as using it with the platform. The same 3-V to 5.5-V power supply range and the isolated OUT+ and OUT– lines for BTL operation requirement exists. -
Page 33: Tpa0202 Evm Connected For Stereo Single-Ended Output
TPA0202 SAMPLE EVM Lit.# SLOP202 Audio Input (Left) Table 3–2. Typical TPA0202 EVM Jumper Settings for Single-Ended Stand-Alone TPA0202 Note: ON = shunt installed, OFF = open, X = don’t care, S8 = always OFF Using The TPA0202 EVM Stand-Alone... -
Page 34: Tpa0202 Audio Power Amplifier Evaluation Module Parts List
TPA0202 Audio Power Amplifier Evaluation Module Parts List 3.5 TPA0202 Audio Power Amplifier Evaluation Module Parts List Table 3–1. TPA0202 EVM Parts List Ref. Description C1, C2, Capacitor, 1 F, C6, C7 80%/–20%, nonpolarized C4, C5, Capacitor, 2.2 F, 20%,...
Need help?
Do you have a question about the TPA0202 and is the answer not in the manual?
Questions and answers