Texas Instruments TPA0202 - Manual (Page 14)

Quick Start List for Platform
2-4 Quick Start
- Evaluation Module Preparations
Figure 2–2. Module Preparation
GND
ROUT+
HP/L*
ROUT–
SE/BTL*
S7
MUTE
GND
LOUT–
LOUT+
S2
C5 C4
R1
R3
C1
C2 C12
LVDD GND R5
GND
GND
LIN
LHP
C3 R4
R2
C10 C9
RVDD GND
C8 R9
R7
R10
R8
C7
C6
RHP
RIN
GND
GND
R12
R13
S3
S4
S5
S6
R11
C11
+
D1
TPA0202 SAMPLE EVM
Lit.# SLOP202
U1
S1
+
S8
11
12
13
14
15
16
11) 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.
12) To select the line inputs, set input select jumper S3 to OFF. To select the
headphone inputs, set input select jumper S3 to ON.
13) To allow the module SE/BTL control input to switch the amplifier IC
between single ended (SE) and bridge-tied load (BTL) output modes, set
output mode jumper S4 to
OFF. To keep the module amplifier IC in the
single-ended output mode regardless of the control input state, set jumper
S4 to
ON.
14) Set V
DD
bridge jumper S5 to either ON or OFF for normal operation.
15) To automatically select the headphone inputs when the single-ended
output mode is selected by the module SE/BTL control input, set
autosense control jumper
S6 to ON. To isolate the amplifier IC input select
pin from the module output mode select control input, set autosense
control jumper
S6 to OFF.
16) Set junction temperature measurement jumper S8 to OFF for normal
operation.
Table 2–4. Typical TPA0202 EVM Jumper Settings
EVM S1 S3 S4 S5 S6 S8
TPA0202 ON OFF OFF ON ON OFF
Note: S8 should remain open at all times, ON = shunt installed, OFF = open
- Power Up
17) Verify correct voltage and input polarity and set the external power supply
to ON. If V
CC
and an on-board regulator EVM are used to provide V
DD
, set
platform power switch S1 to ON.
Platform LED2 should light indicating the presence of V
DD
, and the evaluation
modules installed on the platform should begin operation.
18) Adjust the signal source level as needed.