參數資料
| 型號： | TAS5711PHP |
| 廠商： | Texas Instruments |
| 文件頁數： | 30/66頁 |
| 文件大小： | 0K |
| 描述： | IC AMP AUD DGTL 20W 2CH 48HTQFP |
| 標準包裝： | 250 |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲，2.1）或 4 通道（四路） |
| 在某負載時最大輸出功率 x 通道數量： | 21W x 2 @ 8 歐姆 |
| 電源電壓： | 8 V ~ 26 V |
| 特點： | 消除爆音，數字輸入，I²C，I²S，靜音，短路和熱保護，關機，音量控制 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 48-HTQFP（7x7） |
| 封裝/外殼： | 48-TQFP 裸露焊盤 |
| 包裝： | 托盤 |
| 其它名稱： | 296-32732 TAS5711PHP-ND |
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2
Bit
–23
S_xx.xxxx_xxxx_xxxx_xxxx_xxxx_xxx
2
Bit
–5
2
Bit
–1
2 Bit
0
SignBit
2 Bit
1
M0125-01
SLOS600A – DECEMBER 2009 – REVISED AUGUST 2010
www.ti.com
BANK SWITCHING
The TAS5711 uses an approach called bank switching together with automatic sample-rate detection. All
processing features that must be changed for different sample rates are stored internally in three banks. The
user can program which sample rates map to each bank. By default, bank 1 is used in 32kHz mode, bank 2 is
used in 44.1/48 kHz mode, and bank 3 is used for all other rates. Combined with the clock-rate autodetection
feature, bank switching allows the TAS5711 to detect automatically a change in the input sample rate and switch
to the appropriate bank without any MCU intervention.
An external controller configures bankable locations (0x29-0x36, 0x3A-0x3F, and 0x58-0x5F) for all three banks
during the initialization sequence.
If auto bank switching is enabled (register 0x50, bits 2:0) , then the TAS5711 automatically swaps the coefficients
for subsequent sample rate changes, avoiding the need for any external controller intervention for a sample rate
change.
By default, bits 2:0 have the value 000; indicating that bank switching is disabled. In that state, updates to
bankable locations take immediate effect. A write to register 0x50 with bits 2:0 being 001, 010, or 011 brings the
system into the coefficient-bank-update state update bank1, update bank2, or update bank3, respectively. Any
subsequent write to bankable locations updates the coefficient banks stored outside the DAP. After updating all
the three banks, the system controller should issue a write to register 0x50 with bits 2:0 being 100; this changes
the system state to automatic bank switching mode. In automatic bank switching mode, the TAS5711
automatically swaps banks based on the sample rate.
Command sequences for updating DAP coefficients can be summarized as follows:
1.
Bank switching disabled (default): DAP coefficient writes take immediate effect and are not
influenced by subsequent sample rate changes.
OR
Bank switching enabled:
(a)
Update bank-1 mode: Write "001" to bits 2:0 of reg 0x50. Load the 32 kHz coefficients.
(b)
Update bank-2 mode: Write "010" to bits 2:0 of reg 0x50. Load the 48 kHz coefficients.
(c)
Update bank-3 mode: Write "011" to bits 2:0 of reg 0x50. Load the other coefficients.
(d)
Enable automatic bank switching by writing "100" to bits 2:0 of reg 0x50.
26-Bit 3.23 Number Format
All mixer gain coefficients are 26-bit coefficients using a 3.23 number format. Numbers formatted as 3.23
numbers means that there are 3 bits to the left of the decimal point and 23 bits to the right of the decimal point.
This is shown in Figure 54 .
Figure 54. 3.23 Format
36
Copyright 2009–2010, Texas Instruments Incorporated
Product Folder Link(s): TAS5711
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TAS5711PHP | 制造商:Texas Instruments 功能描述:Audio Power Amplifier IC 制造商:Texas Instruments 功能描述:IC, AUDIO PWR AMP, CLASS D, 20W HTQFP-48 |
| TAS5711PHPEVM | 功能描述:音頻 IC 開發(fā)工具 TAS5711PHP Eval Mod RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| TAS5711PHPR | 功能描述:音頻放大器 2-Channel Dig Audio Amp RoHS:否 制造商:STMicroelectronics 產品: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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| TAS5713 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:25-W DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC |
| TAS5713_10 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:25-W DIGITAL AUDIO POWER AMPLIFIER WITH EQ AND DRC |
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