STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 122

• Manufacturer Part Number: STA381BWSTR
• Description: Audio DSPs Sound Terminal 2.1 High EFF Dig Audio
• Manufacturer: STMicroelectronics

Specifications of STA381BWSTR

• Product Category: Audio DSPs
• Rohs: yes
• Operating Supply Voltage: 4.5 V to 25.5 V
• Operating Temperature Range: 0 C to + 150 C
• Mounting Style: SMD/SMT
• Package / Case: VQFN-48
• Snr: 100 dB

Register description: Sound Terminal compatibility
7.7
7.7.1
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The EAPD register directly disables/enables the internal power circuitry.
When EAPD = 0, the internal power section is placed in a low-power state (disabled). This
register also controls the EAPD/FFX4B output pin when OCFG = 10.
Volume control registers (addr 0x06 - 0x0A)
Mute/line output configuration register
Table 131. Line output configuration
Line output is only active when OCFG = 00. In this case LOC determines the line output
configuration. The source of the line output is always channel 1 and 2 inputs.
Table 132. Mute configuration
Bit
Bit
4
3
2
LOC1
LOC[1:0]
D7
0
00
01
10
11
R/W
R/W
R/W
R/W
R/W
LOC0
D6
0
RST
RST
Line output fixed - no volume, no EQ
Line output variable - CH3 volume effects line output, no EQ
Line output variable with EQ - CH3 volume effects line output
Reserved
0
0
0
Reserved
D5
0
BQBALL
Name
Name
Doc ID 018937 Rev 6
C3M
C2M
BQBALL
D4
0
Global biquad bypass
0: Biquad filters active
1: All the biquad filters are bypassed (pass-through)
Channel 3 mute
0 - No mute condition. It is possible to set the channel
volume
1 - Channel 3 in hardware mute
Channel 2 mute
0 - No mute condition. It is possible to set the channel
volume
1 - Channel 2 in hardware mute
Line output configuration
C3M
D3
0
Description
Description
C2M
D2
0
C1M
D1
0
STA381BWS
MMUTE
D0
0