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| 型号： | TAS5086DBT |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO38 |
| 封装： | GREEN, TSSOP-38 |
| 文件页数： | 27/47页 |
| 文件大小： | 814K |
| 代理商： | TAS5086DBT |
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SURROUND REGISTER (0x19)
www.ti.com ................................................................................................................................................... SLES131C – FEBRUARY 2005 – REVISED JUNE 2008
Defines which channels should be running in the 2.0/2.1 mode.
The channels having their surround register set (HIGH) belong to shutdown group 1. They are associated with
VALID1. VALID1 is the signal that is driven low to disable channels when the system is operating in, for example,
stereo mode or 2.1 mode.
Example: If
PWM_1 connects to front left
PWM_2 connects to front right
PWM_3 connects to surround left
PWM_4 connects to surround right
PWM_5 connects to center
PWM_6 connects to sub
and you have a 2.1 mode, then VALID1 connects to the reset of surround left, surround right, and center.
VALID2 connects to the reset of front left, front right, and sub.
That means that the surround register (0x19) is loaded with 0001 1100b = 0x1C.
Note: You must always change channel modes with all channels shut down (register 0x05 = 60).
Table 13. Surround Register (0x19)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
–
1
–
PWM_6 belongs to shutdown group 1 (VALID1)
–
0
–
PWM_6 belongs to shutdown group 2 (VALID2)
–
1
–
PWM_5 belongs to shutdown group 1 (VALID1)
–
0
–
PWM_5 belongs to shutdown group 2 (VALID2)
–
1
–
PWM_4 belongs to shutdown group 1 (VALID1)
–
0
–
PWM_4 belongs to shutdown group 2 (VALID2)
–
1
–
PWM_3 belongs to shutdown group 1 (VALID1)
–
0
–
PWM_3 belongs to shutdown group 2 (VALID2)
–
1
–
PWM_2 belongs to shutdown group 1 (VALID1)
–
0
–
PWM_2 belongs to shutdown group 2 (VALID2)
–
1
PWM_1 belongs to shutdown group 1 (VALID1)
–
0
PWM_1 belongs to shutdown group 2 (VALID2)
Copyright 2005–2008, Texas Instruments Incorporated
33
Product Folder Link(s): TAS5086
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