STA339BWS13TR STMicroelectronics, STA339BWS13TR Datasheet - Page 33

• Manufacturer Part Number: STA339BWS13TR
• Description: DIG AUDIO SYSTEM, 2-CH, 36POWERSSOP
• Manufacturer: STMicroelectronics

Specifications of STA339BWS13TR

• Svhc: No SVHC (15-Dec-2010)
• No. Of Pins: 36
• Operating Temperature Range: -20°C To +70°C
• Supply Voltage Max: 21.5V
• Supply Voltage Min: 4.5V
• Termination: RoHS Compliant
• Package / Case: PowerSSO
• Interface: I2C
• Interface Type: I2C
• Rohs Compliant: Yes

STA339BWS
Setting the MPC bit turns on special processing that corrects the STA339BWS power device
at high power. This mode should lower the THD+N of a full FFX system at maximum power
output and slightly below. If enabled, MPC is operational in all output modes except tapered
(OM[1,0] = 01) and binary. When OCFG = 00, MPC has no effect on channels 3 and 4, the
line-out channels.
Noise-shaper bandwidth selection
Table 36.
AM mode enable
Table 37.
STA339BWS features a FFX processing mode that minimizes the amount of noise
generated in frequency range of AM radio. This mode is intended for use when FFX is
operating in a device with an AM tuner active. The SNR of the FFX processing is reduced to
approximately 83 dB in this mode, which is still greater than the SNR of AM radio.
PWM speed mode
Table 38.
Distortion compensation variable enable
Table 39.
2
3
4
5
Bit
Bit
Bit
Bit
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Noise-shaper bandwidth selection
AM mode enable
PWM speed mode
Distortion compensation variable enable
0
0
0
0
RST
RST
RST
RST
NSBW
AME
PWMS
DCCV
Name
Name
Name
Name
Doc ID 15276 Rev 3
1: third-order NS
0: fourth-order NS
0: normal FFX operation.
1: AM reduction mode FFX operation
0: normal speed (384 kHz) all channels
1: odd speed (341.3 kHz) all channels
0: use preset DC coefficient
1: use DCC coefficient
Description
Description
Description
Description
Register description
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