參數(shù)資料
型號: TPA2016D2YZHR
廠商: Texas Instruments
文件頁數(shù): 7/39頁
文件大?。?/td> 0K
描述: IC AMP AUDIO PWR 2.8W D 16DSBGA
標(biāo)準(zhǔn)包裝: 1
類型: D 類
輸出類型: 2 通道(立體聲)
在某負(fù)載時最大輸出功率 x 通道數(shù)量: 2.8W x 2 @ 4 歐姆
電源電壓: 2.5 V ~ 5.5 V
特點(diǎn): 差分輸入,I²C,短路和熱保護(hù),關(guān)機(jī),音量控制
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 16-DSBGA(2x2)
封裝/外殼: 16-UFBGA,DSBGA
包裝: 標(biāo)準(zhǔn)包裝
配用: 296-31088-ND - EVAL MODULE FOR TPA2016D2
其它名稱: 296-23677-6
1
Gain change = 1
× Input signal change
Compression ratio
-
÷
è
(3)
1
24 dB =
1
× 32
4
-
÷
è
(4)
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
www.ti.com........................................................................................................................................................ SLOS524D – JUNE 2008 – REVISED AUGUST 2009
The gain change equation is:
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 30 shows different settings for dynamic range and different fixed gain selected but no limiter level.
Figure 30. 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 31 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 2008–2009, Texas Instruments Incorporated
15
Product Folder Link(s): TPA2016D2
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TPA2016D2YZHT 功能描述:音頻放大器 1.7W/Ch Stereo Class D Aud Amp 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
TPA2016DYZHT2 制造商:Texas Instruments 功能描述:
TPA2017D2 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.8-W/Ch Stereo Class-D Audio Amplifier with SmartGainTM Dynamic Range Compression and AGC
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