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參數(shù)資料
| 型號(hào)： | TAS5028A |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8 Channel Digital Audio PWM Processor |
| 中文描述： | 8 通道數(shù)字音頻 PWM 處理器 |
| 文件頁數(shù)： | 33/82頁 |
| 文件大?。?/td> | 1226K |
| 代理商： | TAS5028A |
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TAS5028A Controls and Status
26
SLES112 — June 2004
TAS5028A
Because RESET is an asynchronous signal, clicks and pops produced during the application (the leading
edge) of RESET cannot be avoided. However, the transition from the hard mute state (M) to the operational
state is performed using a quiet start up sequence to minimize noise. This control uses the PWM reset and
unmute sequence to shut down and start up the PWM. A detailed description of these sequences is contained
in the PWM section. If a completely quiet reset or power down sequence is desired, MUTE should be applied
before applying RESET.
The rising edge of the reset pulse begins device initialization before the transition to the operational mode.
During device initialization, all controls are reset to their initial states. Table 2
2 shows the default control
settings following a reset.
Table 2
2. Values Set During Reset
CONTROL
SETTING
Clock register
High pass
Unmute from clock error
Post DAP detection automute
Eight Ch PreDAP detection automute
De
emphasis
Channel configuration control
Headphone configuration control
Serial data interface format
Individual channel mute
Automute delay
Automute threshold 1
Automute threshold 2
Modulation limit
Six (or eight – low) channel configuration
Slew rate limit
Interchannel delay
Shutdown PWM on error
Volume and mute update rate
Treble and bass slew rate
Bank switching
Auto bank switching map
Input mixer coefficients
Output mixer coefficients
Subwoofer sum into Ch1 and 2 (5508)
Ch1 and 2 sum in subwoofer (5508)
Bass and treble bypass
Bass and treble Inline
Master volume
Individual channel volumes
All bass and treble Indexes
Treble filter sets
Bass filter sets
AM interference enable
AM interference IF
AM interference select sequence
Tuned freq and mode
Not valid
Disabled
Hard unmute
Enabled
Enabled
De-emphasis disabled
Configured for the default setting
Configured for the default setting
I
2
S 24 bit
No channels are muted
5 ms
< 8 bits
Same as automute threshold 1
Maximum modulation limit of 97.7%
Eight channels
Disengaged for all channels
32, 0, –16, 16, –24, 8, –8,
24
Enabled
Volume ramp 85 ms
Update every 1.31 ms
Manual bank selection is enabled
All channels use bank 1
Input N
> channel N, no attenuation
Channel N
> output N, no attenuation
Gain of 0
Gain of 0
Gain of 1
Gain of 0
Mute
0 dB
0x12 neutral
Filter set 3
Filter set 3
Disabled
455
1
0000 , BCD
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| TAS5028APAG | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028APAGG4 | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028APAGR | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028APAGRG4 | 功能描述:音頻放大器 8Ch Dig Aud PWM Proc RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5028PAG | 功能描述:音頻 DSP 8 Ch Digital Audio PWM Processor RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
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