STEVAL-CCA021V1 STMicroelectronics, STEVAL-CCA021V1 Datasheet - Page 24

• Manufacturer Part Number: STEVAL-CCA021V1
• Description: BOARD EVAL AUDIO FOR STM32F103
• Manufacturer: STMicroelectronics

Specifications of STEVAL-CCA021V1

• Amplifier Type: Class D
• Output Type: Mono jack connector, 2 terminal connectors, 2 RCA jacks
• Max Output Power X Channels @ Load: 2.2W x 1 or 2 @ 4 Ohm
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: STM32F103, TS4657(TS2012, TS4962, TS472)
• Description/function: Audio D/A
• Operating Supply Voltage: 3 V to 5.5 V
• Output Power: 2.8 W
• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: TS4657
• Other names: 497-10338

Connectors and functionality of the TS4657 audio card
Figure 21. TS2012 stereo Class-D amplifier functionality
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Input
from
TS4657
220 nF
220 nF
10 KΩ
10
220 nF
C12
C15
C11
GND
GND
KΩ
R9
R1
GND GND
GND
STBY_L
STBY_R
Warning:
220 nF
G1
GND
C13
G0
R2
10 KΩ
R10
10
16
17
15
Gain control
20
19
KΩ
1
7
Channel standby
8
L IN +
L IN –
G0
G1
R IN +
R IN –
STBY L
STBY R
The maximum output power per channel of the TS2012 stereo
amplifier is 1.35 W at 5 V into 8 Ω speaker and 2.2 W at 5 V per
channel into 4 Ω speaker. Please take into consideration the
maximum current of the USB port which is typically 500 mA
(2.5 W). When the demonstration kit sinks more current from
the USB port, it is automatically disconnected from the PC. If
this happens just unplug and plug again your demonstration
kit.
Gain
select
Gain
select
Standby
control
GND GND GND
AV
18
Doc ID 15867 Rev 1
1 µF
C5
GND
9
CC
5 V
AGND
1 µF
C6
PGND
PV CC
Oscillator
4
PWM
PWM
3
5 V 5 V
100 nF
13
12
C7
GND
PGND
5 V
PV CC
bridge
21
Stereo Class-D amplifier
bridge
E-PAD
H
H
L OUT+
R OUT+
R OUT–
L OUT–
U2
ST: TS2012IQT
11
14
2
5
BLM18EG221SN1
BLM18EG221SN1
BLM18EG221SN1
BLM18EG221SN1
L1
L2
External
speakers
L3
L4
GND
GND
Terminal block
Terminal block
100 pF
C8
100 pF
C9
GND
C30
C31
100 pF
100 pF
P2
P3
1
2
2
1
UM0722
AM00490