參數(shù)資料
型號: TAS5711PHPR
廠商: Texas Instruments
文件頁數(shù): 29/66頁
文件大?。?/td> 0K
描述: IC AMP AUD DGTL 20W 2CH 48HTQFP
標準包裝: 1
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(shù)量: 21W x 2 @ 8 歐姆
電源電壓: 8 V ~ 26 V
特點: 消除爆音,數(shù)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: 標準包裝
產品目錄頁面: 860 (CN2011-ZH PDF)
其它名稱: 296-25564-6
O
u
tp
u
t
L
e
v
e
l
(d
B
)
Input Level (dB)
T
O
K
M0091-02
1:1 TransferFunction
Implemented TransferFunction
S
Z
–1
AlphaFilterStructure
w
a
B0265-01
Energy
Filter
a w
,
T,K,O
a
w
a,
a
d
/
,
a
w
DRC1
DRC2
0x3A
0x40,0x41,0x42
0x3B/0x3C
0x3E/0x3F
0x43,0x44,0x45
0x3D
Compression
Control
Attack
and
Decay
Filters
AudioInput
DRCCoefficient
NOTE:
=1 –
w
α
www.ti.com
SLOS600A – DECEMBER 2009 – REVISED AUGUST 2010
Dynamic Range Control (DRC)
The DRC scheme has a single threshold, offset, and slope (all programmable). There is one ganged DRC for the
left/right channels and one DRC for the subchannel.
The DRC input/output diagram is shown in Figure 52.
Refer to GDE software tool for more description on T, K, and O parameters.
Professional-quality dynamic range compression automatically adjusts volume to flatten volume level.
Each DRC has adjustable threshold, offset, and compression levels
Programmable energy, attack, and decay time constants
Transparent compression: compressors can attack fast enough to avoid apparent clipping before engaging,
and decay times can be set slow enough to avoid pumping.
Figure 52. Dynamic Range Control
T = 9.23 format, all other DRC coefficients are 3.23 format
Figure 53. DRC Structure
Copyright 2009–2010, Texas Instruments Incorporated
35
Product Folder Link(s): TAS5711
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