STEVAL-CCA003V1 STMicroelectronics, STEVAL-CCA003V1 Datasheet - Page 18
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STEVAL-CCA003V1
Manufacturer Part Number
STEVAL-CCA003V1
Description
BOARD EVAL FOR LV TS4984IQT
Manufacturer
STMicroelectronics
Specifications of STEVAL-CCA003V1
Design Resources
STEVAL-CCA003V1 Gerber Files
Amplifier Type
Class AB
Output Type
2-Channel (Stereo)
Max Output Power X Channels @ Load
1W x 2 @ 8 Ohm
Voltage - Supply
2.2 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Board Type
Fully Populated
Utilized Ic / Part
TS4984
Description/function
Audio Amplifiers
Operating Supply Voltage
2.2 V to 5.5 V
Output Power
1 W
Product
Audio Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
TS4984
Kit Application Type
Amplifier
Application Sub Type
Stereo Audio Power Amplifier
Kit Contents
Board
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
TS4984
Other names
497-6396
STEVAL-CCA003V1
STEVAL-CCA003V1
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
TS4984
4 Application Information
The TS4984 integrates two monolithic power amplifiers with a BTL (Bridge Tied Load) output type
(explained in more detail in
referred to.
Referring to the schematic in
Figure 64: Typical application schematic - left channel
4.1 BTL configuration principle
BTL (Bridge Tied Load) means that each end of the load is connected to two single-ended output
amplifiers. Thus, we have:
The output power is:
For the same power supply voltage, the output power in a BTL configuration is four times higher than the
output power in a single-ended configuration.
18/29
V
V
R
C
Single-ended output 1 = V
Single-ended output 2 = V
in
out1
in
feed
= IN-L
= Rin-L, R
= VO
= Cfeed-L
-
L, V
feed
out2
Input L
= Rfeed-L
GND
= VO+R
Cin = Cin-L
Figure
Section
out1
out2
Rin = Rin-L
= V
= -V
64, we assign the following variables and values:
out
4.1). For this discussion, only the left-channel amplifier will be
out
P
Vin-
Vin+
Cb
1u
(V),
out
(V), V
Standby
=
=
Bypass
IN-L
IN+L
=
out1
(
------------------------------------ -
2V
-
+
Bias
- V
outRMS
R
VCC
out2
L
= 2V
)
-
+
AV = -1
2
out
Cs
1u
TS4984
Cfeed = Cfeed-L
Rfeed = Rfeed-L
(V)
Vout 1
Vout 2
=
=
VO-L
Application Information
VO+L
RL