STEVAL-CCA007V1 STMicroelectronics, STEVAL-CCA007V1 Datasheet - Page 25

• Manufacturer Part Number: STEVAL-CCA007V1
• Description: BOARD EVAL BASED ON TS2012IQT
• Manufacturer: STMicroelectronics

Specifications of STEVAL-CCA007V1

• Design Resources: STEVAL-CCA007V1 Gerber Files STEVAL-CCA007V1 Schematic STEVAL-CCA007V1 Bill of Material
• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 2.8W x 2 @ 4 Ohm
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: TS2012
• Description/function: Audio Amplifiers
• Operating Supply Voltage: 2.5 V to 5.5 V
• Output Power: 2.2 W
• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TS2012
• Other names: 497-8258

TS2012
4.10
Figure 45. Typical application for single-ended input configuration
Output filter considerations
The TS2012 is designed to operate without an output filter. However, due to very sharp
transients on the TS2012 output, EMI radiated emissions may cause some standard
compliance issues.
These EMI standard compliance issues can appear if the distance between the TS2012
outputs and loudspeaker terminal are long (typically more than 50mm, or 100mm in both
directions, to the speaker terminals). As the PCB layout and internal equipment device are
different for each configuration, it is difficult to provide a one-size-fits-all solution.
However, to decrease the probability of EMI issues, there are several simple rules to follow:
●
●
●
●
Right Input
Left Input
Reduce, as much as possible, the distance between the TS2012 output pins and the
speaker terminals.
Use a ground plane for “shielding” sensitive wires.
Place, as close as possible to the TS2012 and in series with each output, a ferrite bead
with a rated current of minimum 2.5A and impedance greater than 50Ω at frequencies
above 30MHz. If, after testing, these ferrite beads are not necessary, replace them by a
short-circuit.
Allow extra footprint to place, if necessary, a capacitor to short perturbations to ground
(see
Figure
Cin
Cin
Cin
Cin
46).
LIN +
LIN -
G0
G1
RIN +
RIN -
STBY L
STBY R
Standby Control
Gain Select
Control
Standby
Control
Gain
Select
Gain
Select
100nF
Cs
VCC
CsL
1 F
μ
Oscillator
PWM
PWM
VCC
VCC
CsR
1 F
Bridge
Bridge
μ
H
H
TS2012
LOUT+
LOUT-
ROUT+
ROUT-
Application information
Left speaker
Right speaker
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