STEVAL-CCA019V1 2 W stereo audio power amplifier based on the TS4982 Features

STEVAL-CCA019V1 2 W stereo audio power amplifier based on the TS4982 Features
STEVAL-CCA019V1
2 W stereo audio power amplifier based on the TS4982
Data brief
Features
■
2 W output power into 4 Ω load per channel
■
125 mW into 16 Ω load ground-referenced
stereo headphone driver
■
Four-step gain settings on speaker path
■
3 levels of 3D effect on speaker path
■
PC-beep input system detection
■
±8 kV HBM ESD-protected headphone outputs
■
Pop and click reduction circuitry
■
32-pin 5 x 5 mm QFN package
■
Thermal shutdown and output short-circuit
protection
■
RoHS compliant
STEVAL-CCA019V1
AM05060v1
Description
The STEVAL-CCA019V1 is a demonstration
board designed to help in the characterization of
the TS4982, which features a stereo loudspeaker
driver and a ground-referenced stereo
headphones driver. An independent standby
mode pin allows the TS4982 to simultaneously
drive both output drivers.
Operating on a single 5 V supply, the TS4982
delivers 2 W (typ.) output power into a 4 Ω load at
1% THD+N.
The TS4982 features a PC beep input, three
levels of 3D stereo enhancement and 4-step gain
control using two digital input pins.
A minimum number of external components
makes the TS4982 well suited for notebook and
other hand-held sound equipment. It also has an
internal thermal shutdown (150° C) and output
short-circuit protection mechanism. The TS2012
is available in a 4x4 mm QFN20 package.
July 2009
Doc ID 16074 Rev 1
For further information contact your local STMicroelectronics sales office.
1/4
www.st.com
4
Schematic diagram
STEVAL-CCA019V1
1
Schematic diagram
Figure 1.
Circuit schematic
VCC
JP3
1
2
3
J1
3D1
N.A.
J5
N.A.
VCC
JP1
JP5
1
2
3
C1
1
2
JP7
1
2
3D0
330nF
LHPin
RSPKout
J6
J2
N.A.
N.A.
VCC
VCC VCC
C13
C8
C7
N.A.
1uF
C10
100nF
J7
C11
10 0n F
N.A.
N.A.
C2
1
2
3
22
HLIN
8
1
HRIN
18
PGND
PVCCL
26
VCC
JP8
PGND
3D1
27
3D0
RHPin
VCC
30
330nF
29
PGND
1
2
PVCCR
JP6
ROUT+
ROUT-
LHP
G0
RHP
N.A.
HPVCC
C16
1uF
17
N.A.
JP11
16
1
2
15
PGNDR
R2
10k
R3
10k
J15
N.A.
J17
21
PVSS
PGNDL
5
14
CP-
CPVSS
GND
BYP
28
J4
7
G1
LSPKin
24
J16
HPout
12
330nF
HPVCC
BEEP
13
32
TS4982
SPKREN
CP+
1
2
31
6
J14
10
C3
J8
N.A.
LOUT-
CPVCC
4
JP10
19
LRIN
CPGND
23
N.A.
LLIN
9
2
11
3
SPKREN
LSPKout
20
HDEN
HDEN
HDEN
1
2
U1
LOUT+
J3
JP9
PGND
N.A.
N.A.
C14
JP19
1
2
1uF
C5
JP12
C4
C17
330nF
R4
100k
J9
HDEN
1uF
1
2
VCC
C15
SPKREN
RSPKin
1uF
N.A.
2
1
1uF
JP13
VCC
HPVCC
1
2
3
JP20
SPKREN
JP14
R1
C6
1
2
J10
J11
N.A.
330nF
N.A.
47k
PCBEEPin
VCC
JP4
VCC HPVCC
JP18
2
1
1
2
3
HPVCC
JP16
VCC
1
2
JP15
1
2
Vcc
G0
J12
VCC
JP2
J13
N.A.
N.A.
1
2
3
G1
Comment: N.A. ... Not Assembled
AM05059V1
AM05060v1
2/4
Doc ID 16074 Rev 1
STEVAL-CCA019V1
2
Revision history
Revision history
Table 1.
Document revision history
Date
Revision
23-Jul-2009
1
Changes
Initial release.
Doc ID 16074 Rev 1
3/4
STEVAL-CCA019V1
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