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參數(shù)資料
| 型號(hào)： | TAS5707PHPR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20.6 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封裝： | 7 X 7 MM, GREEN, PLASTIC, HTQFP-48 |
| 文件頁(yè)數(shù)： | 38/57頁(yè) |
| 文件大?。?/td> | 1000K |
| 代理商： | TAS5707PHPR |
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SLOS556B – NOVEMBER 2008 – REVISED NOVEMBER 2009
MODULATION LIMIT REGISTER (0x10)
The modulation limit is the maximum duty cycle of the PWM output waveform.
Table 15. Modulation Limit Register (0x10)
D7
D6
D5
D4
D3
D2
D1
D0
MODULATION LIMIT
–
0
99.2%
–
0
1
98.4%
–
0
1
0
97.7%
–
0
1
96.9%
–
1
0
96.1%
–
1
0
1
95.3%
–
1
0
94.5%
–
1
93.8%
0
–
RESERVED
INTERCHANNEL DELAY REGISTERS (0x11, 0x12, 0x13, and 0x14)
Internal PWM channels 1, 2, 1, and 2 are mapped into registers 0x11, 0x12, 0x13, and 0x14.
Table 16. Channel Interchannel Delay Register Format
BITS DEFINITION
D7
D6
D5
D4
D3
D2
D1
D0
FUNCTION
0
–
Minimum absolute delay, 0 DCLK cycles
0
1
–
Maximum positive delay, 31 × 4 DCLK cycles
1
0
–
Maximum negative delay, –32 × 4 DCLK cycles
0
RESERVED
SUBADDRESS
D7
D6
D5
D4
D3
D2
D1
D0
Delay = (value) × 4 DCLKs
0x11
1
0
1
0
1
–
Default value for channel 1 (1)
0x12
0
1
0
1
0
1
–
Default value for channel 2 (1)
0x13
1
0
1
0
1
–
Default value for channel 1 (1)
0x14
0
1
0
1
0
1
–
Default value for channel 2 (1)
(1)
Default values are in bold.
ICD settings have high impact on audio performance (e.g., dynamic range, THD, crosstalk etc.) Therefore,
appropriate ICD settings must be used. By default, the device has ICD settings for AD mode. If used in BD
mode, then update these registers before coming out of all-channel shutdown.
REGISTER
AD MODE
BD MODE
0x11
0xAC
0xB8
0x12
0x54
0x60
0x13
0xAC
0xA0
0x14
0x54
0x48
Copyright 2008–2009, Texas Instruments Incorporated
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