STA333ML STMicroelectronics, STA333ML Datasheet - Page 15

• Manufacturer Part Number: STA333ML
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA333ML

• Svhc: No SVHC (15-Dec-2010)
• No. Of Pins: 36
• Operating Temperature Range: 0°C To +70°C
• Supply Voltage Max: 18V
• Supply Voltage Min: 4.5V
• Termination T: RoHS Compliant
• Package / Case: PowerSSO
• Interface: I2S
• Interface Type: I2S
• Rohs Compliant: Yes

STA333ML
Figure 12. Filterless output configuration
The filterless application is more critical in terms of EMI. It is quite important to follow the
below suggestion:
The presence of snubber networks reduce the EMI. The snubber networks should be placed
as close as possible to the IC.
Tracks from amplifier to speaker should be as short as possible.
Ferrite beads can be used (instead of coils) to improve EMI performance.
–
–
–
–
OUT1A
OUT1B
OUT2B
OUT2A
Ferrite beads must have a low impedance in the audio band and high impedance
at high frequencies.
Place ferrite beads as close as possible to the IC.
Ferrite filters must reduce EMI above 1 MHz.
FCC and CE authorities test radiated emission above 30 MHz.
22R
330 pF
22R
330 pF
Doc ID 13177 Rev 5
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