beautypg.com

Details – Texas Instruments MIXED SIGNAL PRODUCTS TPA0103 User Manual

Page 30

background image

Using The TPA0103 EVM Stand-Alone

3-16

Details

3.4

Using The TPA0103 EVM Stand-Alone

Using the TPA0103 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.

Note that the mute signal applied to the EVM Mode A pin must be able to sup-
ply enough current to overcome the pulldown resistor on the module (100 k

),

possibly in parallel with a second pulldown resistor (100 k

).

3.4.1

TPA0103 EVM Connected for Center Channel BTL Output

Figure 3–9. TPA0103 EVM Connected for Center Channel BTL Output

Audio

Input

(Right)

Audio

Input

(Left)

External Mute

Control

(active high)

5 V

GND

ROUT+

HP/L*

COUT–

MODE A

SDWN

GND

COUT+

LOUT+

C1

C2

R6

GND

GND

LIN

LHP

C3

R16

C10

C9

VDD

GND

R9

C7

C6

RHP

RIN

GND

GND

S3

S4

S5

R11

C11

+

S2

MODE B

R5

S1

C12

R18

R2

R1

R3

R13

R14

R4

C8

R15

R12

R7

R8

R10

C5

TPA0103 EVM

REV. A

Lit.# SLOP103

–3

009228

R17

U1

5 V

Table 3–3. Typical TPA0103 EVM Jumper Settings for Center Channel BTL Stand-Alone

EVM

S1

S2

S3

S4

S5

TPA0103

ON

ON

OFF

OFF

OFF

Note:

ON = shunt installed, OFF = open, X = don’t care