- 您現在的位置：買賣IC網 > PDF目錄98271 > TPA2028D1YZFT (TEXAS INSTRUMENTS INC) 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 PDF資料下載
參數資料
| 型號： | TPA2028D1YZFT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| 封裝： | 1.63 X 1.63 MM, GREEN, DSBGA-9 |
| 文件頁數： | 9/37頁 |
| 文件大小： | 1812K |
| 代理商： | TPA2028D1YZFT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁
1
Gain change = 1
× Input signal change
Compression ratio
-
÷
è
1
24 dB =
1
× 32
4
-
÷
è
V
-dBV
O
U
T
V
-dBV
IN
Increasing
FixedGain
Decreasing
1
:1
2 :
1
4 :1
8 :1
1
:1
2 :
1
4 :1
8 :1
Rotation
Point@
lowergain
Rotation
Point@
highergain
SLOS660A
– JANUARY 2010 – REVISED MARCH 2011
The gain change equation is:
(3)
(4)
Consider the following when setting the compression ratio:
Dynamic range of the speaker
Fixed gain level
Limiter Level
Audio Loudness vs Output Dynamic Range.
Figure 33 shows different settings for dynamic range and different fixed gain selected but no limiter level.
Figure 33. Output Signal vs Input Signal State Diagram Showing Different Compression Ratio
Configurations with Different Fixed Gain Configurations
The rotation point is always at Vin = 10dBV. The rotation point is not located at the intersection of the limiter
region and the compression region. By changing the fixed gain the rotation point will move in the y-axis direction
only, as shown in the previous graph.
Interaction between compression ratio and limiter range: The compression ratio can be limited by the limiter
range. Note that the limiter range is selected by the limiter level and the fixed gain.
For a setting with large limiter range, the amount of gain steps in the AGC remaining to perform compression are
limited. Figure 34 shows two examples, where the fixed gain was changed.
1. Small limiter range yielding a large compression region (small fixed gain).
2. Large limiter range yielding a small compression region (large fixed gain).
Copyright
2010–2011, Texas Instruments Incorporated
17
Product Folder Link(s): TPA2028D1
相關PDF資料 |
PDF描述 |
|---|---|
| TPA2031D1YZFT | 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA9 |
| TPA2031D1YZF | 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA9 |
| TPA2031D1YZFR | 2.5 W, 2 CHANNEL, AUDIO AMPLIFIER, BGA9 |
| TPA2032D1YZFR | 2.75 W, 1 CHANNEL, AUDIO AMPLIFIER, BGA9 |
| TPA2032D1YZF | 2.75 W, 1 CHANNEL, AUDIO AMPLIFIER, BGA9 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| TPA2028D1YZFT | 制造商:Texas Instruments 功能描述:SPEAKER AMPLIFIER IC |
| TPA2029D1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:3-W Mono Class-D Audio Amplifier With SmartGain? AGC/DRC |
| TPA2029D1YZFEVM | 功能描述:音頻 IC 開發工具 TPA2029D1 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 |
| TPA2029D1YZFR | 功能描述:音頻放大器 3W Mono Class-D 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 |
| TPA2029D1YZFT | 功能描述:音頻放大器 3W Mono Class-D 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 |
發布緊急采購，3分鐘左右您將得到回復。