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參數資料
型號: TFA9812HN/N1,557
廠商: NXP SEMICONDUCTORS
元件分類: 音頻/視頻放大
英文描述: 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48
封裝: 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT619-8, HVQFN-48
文件頁數: 47/66頁
文件大?。?/td> 386K
代理商: TFA9812HN/N1,557
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
51 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
Remark: A 4.8
speaker (6 speaker with 20 % spread) in BTL conguration can be
used up to a supply voltage of 17 V without running into current limiting. Current limiting
(clipping) will avoid audio holes, but it causes a distortion comparable to voltage clipping.
14.3 Speaker conguration and impedance
For a at-frequency response (second-order Butterworth lter) it is necessary to change
the low pass lter components LLC and CLC according to the speaker conguration and
impedance.
14.4 Typical application schematics
Table 58.
Filter component values
Impedance (
)
LLC (H)
CLC (nF)
6
15
680
8
18
560
16
47
330
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