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參數(shù)資料
| 型號： | TAS3004PFBG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| 封裝： | GREEN, PLASTIC, TQFP-48 |
| 文件頁數(shù)： | 44/84頁 |
| 文件大?。?/td> | 671K |
| 代理商： | TAS3004PFBG4 |
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7–4
7.4
Test Mode
Terminal 9 (TEST) is tied low in normal operation. This function is reserved for factory test and must not be asserted.
7.5
Internal Interface
Figure 7–3 shows the block diagram of the interface between the microcontroller and its peripheral blocks.
7.6
GPI Terminal Programming
During initialization, the microcontroller fetches a control byte from its EPROM or receives a command from I2C.
7.6.1
Switch Interface
The six GPI terminals are programmed to operate in the following manner:
Table 7–1. GPI Terminal Programming
GPI5
GPI4
GPI3
GPI2
GPI1
GPI0
VOL_UP, +1 dB
x
VOL_DN, –1 dB
x
BASS_UP, +1 dB
x
BASS_DN, –1 dB
x
TREB_UP, +1 dB
x
TREB_DN, –1 dB
x
Shift 1
x
Mute
x
EQ1
x
EQ2
x
EQ3
x
EQ4
x
EQ5
x
Shift 2
x
NOTE: x = Logic low
Initially (after reset), the TAS3004 GPI is set to control volume, bass, and treble. Simultaneously setting GPI bits 1
and 5 low for 1 second changes the function of the GPI terminals to control mute and equalization.
To return to volume, bass, and treble control, simultaneously set GPI terminals 2 and 3 low for 1 second.
When a GPI switch is activated, the TAS3004 device echoes its function over I2C to a TAS3001 device mapped to
address x6Ah. Therefore, a system with two audio equalization chips can be implemented without the need for a
microcontroller.
7.6.2
GPI Architecture
The GPI provides simple but flexible input port to activate the input parameters. Each terminal input is an active logic
low.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TAS3004PFBR | 功能描述:音頻 DSP Digital Audio Processor w/ Codec 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 |
| TAS3004PFBRG4 | 功能描述:音頻 DSP Digital Audio Processor w/ Codec 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 |
| TAS3103 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Digital Audio Processor With 3D Effects |
| TAS3103A | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Digital Audio Processor With 3D Effects |
| TAS3103ADBT | 功能描述:音頻 DSP Digital Audio Processor w/ 3D Eff 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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