STA333W STMicroelectronics, STA333W Datasheet - Page 23

• Manufacturer Part Number: STA333W
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA333W

• Svhc: No SVHC (15-Dec-2010)
• Package / Case: PowerSSO
• Interface: I2S
• 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
• Interface Type: I2S
• Rohs Compliant: Yes

STA333W
Interpolation ratio select
Table 11.
The STA333W has variable interpolation (oversampling) settings such that internal
processing and DDX output rates remain consistent. The first processing block interpolates
by either 2 times or 1 time (pass-through) or provides a 2-times downsample. The
oversampling ratio of this interpolation is determined by the IR bits.
Table 12.
Thermal warning recovery bypass
Table 13.
If the thermal warning adjustment is enabled (TWAB = 0), then the thermal warning
recovery determines if the -3 dB output limit is removed when thermal warning is negative.
If TWRB = 0 and TWAB = 0, then when a thermal warning disappears the -3 dB output limit
is removed and the gain is added back to the system. If TWRB = 1 and TWAB = 0, then
when a thermal warning disappears the -3 dB output limit remains until TWRB is changed to
zero or the device is reset.
4:3
32
44.1
48
88.2
96
176.2
192
5
Input sample rate f
Bit
Bit
R/W
R/W
R/W
R/W
Interpolation ratio select
IR bit settings as a function of input sample rate
Thermal warning recovery
00
1
RST
RST
S
(kHz)
IR [1:0]
TWRB
Doc ID 13365 Rev 2
00
00
00
01
01
10
10
Name
Name
IR
Interpolation ratio select: Selects internal
interpolation ratio based on input I
frequency.
Thermal warning recovery bypass:
0: thermal warning recovery enabled
1: thermal warning recovery disabled
2-times oversampling
2-times oversampling
2-times oversampling
Pass-through
Pass-through
2-times downsampling
2-times downsampling
Description
Description
1
st
stage interpolation ratio
Register description
2
S sample
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