STA333ML STMicroelectronics, STA333ML Datasheet - Page 13

• 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
5.2
5.3
Internal voltage reference
An embedded voltage regulator produces the reference voltages for the DMOS bridge
driver. It requires two 100 nF capacitors to keep the regulator stable. The capacitors should
be place close to the pins.
Figure 9.
PLL filter schematic
It is recommended to use the below scheme and values for the PLL loop filter to achieve the
best performances from the device in general application. Please be noted that the ground
of this filter scheme has to be connected to the ground of the PLL without any resistive path.
Concerning the component values, please take into account that the greater is the filter
bandwidth, the less is the lock time but the higher is the PLL output jitter.
Figure 10. PLL applications schematic
FILTER_PLL
GND_DIG
GND_REG
VCC_REG
VDD_REG
VSS_REG
Reference voltage block diagram
100 nF
100 nF
Ferrite bead
Regulator
I
Input
level
shifter
interface
2
S
Doc ID 13177 Rev 5
4.7 nF
2k2
100 pF
Driver P
Driver N
PLL_GND
680 pF
GND
VCC
Applications
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