STEVAL-CCA019V1 STMicroelectronics, STEVAL-CCA019V1 Datasheet - Page 16

• Manufacturer Part Number: STEVAL-CCA019V1
• Description: BOARD EVAL AUDIO AMP FOR TS4982
• Manufacturer: STMicroelectronics

Specifications of STEVAL-CCA019V1

• Amplifier Type: Class AB
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2W x 2 @ 4 Ohm; 125mW x 2 @ 16 Ohm
• Voltage - Supply: 5.0V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: TS4982
• Description/function: Audio Amplifiers
• Operating Supply Voltage: 5 V
• Output Power: 2 W
• Product: Audio Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: TS4982
• Other names: 497-10339

Application information
4
4.1
4.2
16/31
Application information
General description
The TS4982 is a stereo loudspeaker power amplifier and ground-referenced headphone
driver with dedicated separated single-ended inputs in a QFN32 package, which is the best
solution in space-saving applications. Each of the audio paths, loudspeaker or headphone,
can be independently set to standby mode to save battery life.
The loudspeaker amplifier with BTL output configuration (see
configuration principle on page
channels enabled at 1% THD+N with a nominal power supply of 5 V. The gain (see
Section
digital inputs. The stereo sound perception which could seem poor in an application
(notebook) can be enhanced by a 3D effect internal block in three levels (see
Power dissipation and efficiency on page
In the audio path which is not in standby mode, a PC beep signal is mixed if it is detected
(see
The outputs are protected against over-current consumption which can appear when the
outputs are short-circuited between them or to GND or Vcc. There is also an internal
thermal shutdown activated at 150° C (typical) and deactivated at 120° C (typical).
Loudspeaker BTL configuration principle
Figure 38. Simplified schematic of the loudspeaker amplifier
Section 4.7: PC beep on page
4.2) of the loudspeaker amplifier can be set to four discrete levels thanks to two
INPUT
BIAS
Doc ID 14527 Rev 2
-
+
Av=1
16) can deliver 2 W output power into a 4 Ω load with both
21) on the PC beep input.
17).
-
Av=-1
+
Vout1
Vout2
Section 4.2: Loudspeaker BTL
Section 4.3:
TS4982