STA333BW STMicroelectronics, STA333BW Datasheet - Page 38

• Manufacturer Part Number: STA333BW
• Manufacturer: STMicroelectronics

Specifications of STA333BW

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Speaker
• Total Harmonic Distortion: 0.2@8Ohm@1W%
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3.3/5/9/12/15/18V
• Power Supply Requirement: Quad
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 80dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.7/4.5V
• Dual Supply Voltage (max): 3.6/21.5V
• Operating Temp Range: -20C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 36
• Package Type: PowerSSO EP
• Lead Free Status / Rohs Status: Compliant

Register description
38/67
2.1 channels, two full-bridges + one external full-bridge (OCFG = 10)
Mapping:
Default modulation:
In this configuration, channel 3 has full control (volume, EQ, etc…). On OUT4 channel the
external bridge control signals are muxed.
In this configuration the PWM slot phase is the following as shown in
Figure 17. 2.1 channels (OCFG = 10) PWM slots
FFX1A -> OUT1A
FFX1B -> OUT1B
FFX2A -> OUT2A
FFX2B -> OUT2B
FFX3A -> OUT3A
FFX3B -> OUT3B
EAPD -> OUT4A
TWARN -> OUT4B
FFX1A / 1B configured as ternary
FFX2A / 2B configured as ternary
FFX3A / 3B configured as ternary
FFX4A / 4B is not used
OUT1A
OUT1A
OUT1A
OUT1A
OUT1B
OUT1B
OUT1B
OUT1B
OUT2A
OUT2A
OUT2A
OUT2A
OUT2B
OUT2B
OUT2B
OUT2B
OUT3A
OUT3A
OUT3A
OUT3A
OUT3B
OUT3B
OUT3B
OUT3B
Doc ID 13773 Rev 3
Figure
17.
STA333BW