参数资料
型号: TAS5705PAP
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频/视频放大
英文描述: 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
封装: 10 X 10 MM, GREEN, PLASTIC, HTQFP-64
文件页数: 48/72页
文件大小: 1168K
代理商: TAS5705PAP
SLOS549A – JUNE 2008 – REVISED SEPTEMBER 2009 ................................................................................................................................................ www.ti.com
Table 13. System Control Register 2 (0x05)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
0
Reserved (1)
When D6 is deasserted, all channels not belonging to shutdown group (SDG) are
0
started. SDG register is 0x19.
When D6 is deasserted, all channels are started. VALID = 1. No channels in
0
1
SDG1.
1
0
All channels are shut down (hard mute). VALID = 0.
1
All channels are shut down (hard mute). VALID = 0 (1)
0
Reserved (1)
Use HP volume register (0x0C) for adjusting headphone volume when in
0
headphone mode. (1)
1
Use channel volume registers (0x08–0x0B, 0x0D) for all modes.
Speaker mode. Hardware pin, HPSEL = 1, forces device into headphone
0
mode. (1)
0
1
HP mode. This setting is logically ORed with external HPSEL pin.
Line out mode. Hardware pin, HPSEL, is ignored for this setting. HP_PWMx pins
1
0
are active.
1
Reserved
0
Reserved (2)
(1)
Default values are in bold.
(2)
Default values are in bold.
SOFT MUTE REGISTER (0x06)
Writing a 1 to any of the following bits sets the output of the respective channel to 50% duty cycle. Default is
0x00.
Table 14. Soft Mute Register (0x06)
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
1
Soft mute channel 1
1
Soft mute channel 2
1
Soft mute channel 3
1
Soft mute channel 4
1
Soft mute subwoofer channel (channel 6)
0
Unmute all channels (1)
(1)
Default values are in bold.
52
Copyright 2008–2009, Texas Instruments Incorporated
Product Folder Link(s): TAS5705
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