Texas Instruments TPA0162 User Manual Download Page 13

Quick Start List for Platform

2-3

Quick Start

2.2

Quick Start List for Platform

Follow these steps when using the TPA0162 EVM with the TI plug-n-play audio
amplifier evaluation platform (see the platform user’s guide, SLOU011, for
additional details). Numbered callouts for selected steps are shown in Figure
2–1 and Figure 2–2, and details appear in Chapter 3.

-

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 TPA0162 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).

4) Set control signal Polarity jumper JP8 to 

Hi.

5) Set jumper JP6 to select the 

Mode control input (causes the TPA0162 to

switch to the single-ended output mode if a plug is inserted into platform
headphone jack J10).

6) If the headphone Jack (J10) output will be used, set headphone source

switch S3 to U2– U4.

Table 2–3. Platform Jumper and Switch Settings for the TPA0162

EVM

JP6

JP7

JP8

S2

S3

P-N-P Platform

Mode

X

Hi

Note 2

U2–U4

Notes:

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.

-

Power supply

7) Select and connect the power supply (ensure power supply is set to 

OFF ):

a) Connect an external regulated power supply set to 5 V to platform V

DD

power input connector J6 taking care to observe marked polarity,
     or

b) Install a voltage regulator EVM (SLVP097 or equiv.) in platform socket

U6. Connect a 7 V – 12 V power source to a platform V

CC

 power input

J1 or J2 and jumper the appropriate power input (see platform user’s
guide).

-

Inputs and outputs

8) Ensure that the audio signal source level is set to minimum.

9) Connect the audio source to left and right RCA phono jacks J3 and J5 or

stereo miniature phone jack J4.

10) Connect speakers to left and right RCA jacks J7 and J9 or to stripped wire

speaker connectors J8.

Summary of Contents for TPA0162

Page 1: ...TPA0162 Audio Power Amplifier Evaluation Module August 1999 Mixed Signal Products User s Guide SLOU047...

Page 2: ...ONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH PERSONAL INJURY OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE CRITICAL APPLICATIONS TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED AUTHORIZED OR WARRANT...

Page 3: ...s 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 devic...

Page 4: ...iv...

Page 5: ...Inputs and Gain 3 5 3 2 3 Differential Input 3 7 3 2 4 Depop Circuitry 3 7 3 2 5 BTL Operation 3 7 3 2 6 Single Ended Operation 3 7 3 3 Using The TPA0162 EVM With the Plug N Play Evaluation Platform 3...

Page 6: ...7 Mute Mode and Polarity Control 3 13 3 8 Typical Headphone Plug 3 16 3 9 TPA0162 EVM Connected for Stereo BTL Output 3 17 3 10 TPA0162 EVM Connected for Stereo Single Ended Output 3 18 Tables 2 1 Ty...

Page 7: ...TPA0162 audio amplifier evaluation module SLOP210 It includes a list of EVM features a brief description of the module illustrated with a pictorial diagram and a list of EVM specifications Topic Page...

Page 8: ...Quick and Easy Configuration With The TI Plug N Play Audio Amplifier Evaluation Platform J Evaluation module is designed to simply plug into the platform automatically making all signal control and p...

Page 9: ...TI plug n play audio amplifier evaluation platform or to be wired directly into existing circuits and equipment when used stand alone The platform has room for a single TPA0162 evaluation module and i...

Page 10: ...1 4 Introduction...

Page 11: ...witch and jumper settings shown in Table 2 1 are typical for the TPA0162 EVM and will cause the TPA0162 to switch to single ended output mode when a plug is inserted into platform headphone jack J10 T...

Page 12: ...or both may result Figure 2 1 Quick Start Platform Map 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 J...

Page 13: ...e headphone Jack J10 output will be used set headphone source switch S3 to U2 U4 Table 2 3 Platform Jumper and Switch Settings for the TPA0162 EVM JP6 JP7 JP8 S2 S3 P N P Platform Mode X Hi Note 2 U2...

Page 14: ...plifier IC between single ended SE and bridge tied load BTL output modes set output mode jumper J1 to OFF To keep the module amplifier IC in the single ended output mode regardless of the control inpu...

Page 15: ...N J4 J3 R2 J2 Power supply 1 Ensure that all external power sources are set to OFF 2 Connect an external regulated power supply set to 5 V to the module VDD and GND pins taking care to observe marked...

Page 16: ...omes out of shutdown the volume is set at the 85 dB level Press the UP pushbutton S2 until the desired volume level is reached Control Inputs 8 Connect control lines to the various module control inpu...

Page 17: ...on information and a parts list for the TPA0162 evaluation module Topic Page 3 1 Precautions 3 2 3 2 The TPA0162 Audio Power Amplifier Evaluation Module 3 3 3 3 Using the TPA0162 EVM With the Plug N P...

Page 18: ...or both may result Figure 3 1 The TI Plug N Play Audio Amplifier Evaluation Platform Signal Conditioning CAUTION Do not insert or remove EVM boards with power applied ICC JP4 F1 VR1 R1 JP3 JP2 JP1 AC...

Page 19: ...o circuits or equipment The module has single in line header connector pins mounted to the under side of the board These pins allow the module to be plugged into the TI platform which automatically ma...

Page 20: ...SOP thermal surface mount package and has been designed to operate from low supply voltages between approximately 4 5 V and 5 5 V Typical applications include portable computers and multimedia systems...

Page 21: ...s If using separate line and headphone inputs R IN and L IN should be AC grounded through a capacitor If using differential inputs line and headphone inputs must be the same A third input PC BEEP is c...

Page 22: ...5 dB or mute Each time a button is pressed the volume changes by one increment If a button is held in the depressed position the volume changes by one increment every four clock cycles followed by a s...

Page 23: ...r off or shutdown to normal operation or when transitioning between the SE and BTL modes 3 2 5 BTL Operation To operate in the bridge tied load output mode the module SE BTL control input terminal mus...

Page 24: ...e proper orientation Evaluation modules are easily removed from the platform by simply prying them up and lifting them out of their sockets Care must be taken however to prevent bending the pins 3 3 1...

Page 25: ...n typical applications some or all of the jumper functions are controlled by the system microcontroller or external logic Figure 3 5 TPA0162 EVM Jumpers and Switches R3 100 k C13 10 F GND GND RLINEIN...

Page 26: ...l volume control when the jumper J2 is set to ON However the amplifier may be controlled by an external microprocessor clock at a speed of up to 45 kHz when the jumper J2 is set to OFF and the externa...

Page 27: ...ock cycles the volume will increment by one step followed by a short delay This delay will decrease the longer the line is held low eventually reaching a delay of zero 3 3 2 8 CLK IN Signal Input Pin...

Page 28: ...ifier in socket U5 or the signal from the TPA0162 power amplifier installed in socket U2 as determined by the setting of headphone source select switch S3 When S3 is set to the power amplifier positio...

Page 29: ...mplifier IC between the bridge tied load BTL output mode and the single ended SE output mode When the mode control input is tied to GND the module operates in the BTL output mode When this input is ti...

Page 30: ...n jumper header JP8 on the platform selects the control signal polarity by connecting either the active high or the active low line from the headphone jack to jumper JP6 When JP6 is set to Mute use th...

Page 31: ...full power output peak current draw can be as high as 1 A Any power supply connected to the platform should be capable of providing 1 A of current to avoid clipping of the output signal during peaks...

Page 32: ...ght RCA phono jacks J7 and J9 left and right pairs of compression connectors for stripped speaker wires J8 and optionally through a miniature 1 8 stereo phone jack J10 for headphones The audio output...

Page 33: ...the pullup resistor on the module 100 k 3 4 1 TPA0162 EVM Connected for BTL Output Figure 3 9 TPA0162 EVM Connected for Stereo BTL Output Audio Input Right Audio Input Left External Shut Down Control...

Page 34: ...io Input Left 5 V GND ROUT ROUT SE BTL S1 SHUTDOWN GND LOUT LOUT C11 C2 C13 VDD GND L IN GND L LINE L HP VDD GND R HP R LINE GND R IN C10 SLOP210 U1 TEXAS INSTRUMENTS R4 R1 PC BEEP UP C1 C12 C5 C4 J1...

Page 35: ...47 nF 80 20 nonpolarized 0805 1 C10 C13 Capacitor 10 F 6 3 V A 2 Panasonic ECS TOJY106R Digi Key PCS1106CT ND R1 R2 R3 R4 Resistor 100 k 1 8 W 5 0805 4 Panasonic ERJ 6GEYJ104V Digi Key P100KABK ND S1...

Page 36: ...3 20 Details...

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