STEVAL-CCA021V1 STMicroelectronics, STEVAL-CCA021V1 Datasheet - Page 8

• 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

General system description
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General system description
The STM32F103 USB demonstration kit consists of two boards. The STM32F103 controller
board receives the audio data through USB from PC and transfers them into the I
stream in the PCM16 format suitable for the TS4657 audio DAC. In addition, the
STM32F103 can act as an interface with a microphone line connected to the microcontroller
ADC pin.
The second board performs the audio function, using the TS4657 digital to analog converter
(DAC). Its output is passed to TS4962 Class-D mono amplifier that either feeds the onboard
speaker or drives the external mono speaker through the onboard mono jack connector. The
DAC output is also connected to TS2012 stereo Class-D amplifier which output is available
outside the board for external stereo speakers through terminal connectors. The audio input
is available through the onboard microphone which output is amplified by TS472
microphone preamplifier. This microphone line is considered to be connected to the ADC
input of the microcontroller on the STM32F103 controller board.
Figure 2.
USB
STM32
STM32F103 USB demonstration kit - block diagram
Analog
TS4657
I 2 S
Doc ID 15867 Rev 1
Digital control
RCA
RCA
Stereo
lineout
TS2012
TS4962
TS472
Connectors
microphone
Mono jack
Onboard
On board
speakers
external
speaker
external
speaker
for
for
2
S data
AM00480
UM0722