參數(shù)資料
型號： TFA9812HN/N1,518
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(shù)： 23/66頁
文件大?。?/td> 386K
代理商： TFA9812HN/N1,518
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
3 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
4.
Quick reference data
[1]
IP is the current through the analog supply voltage (VDDA) pin added to the current through the power supply
voltage (VDDP) pin.
Table 1.
Quick reference table
Unless specied otherwise, VDDA =VDDP = 12V,VSSP1 =VSSP2 =0V,VDDA(3V3) =VDDD(3V3) = 3.3 V,
VSS1 =VSS2 = REFD = REFA = 0 V, Tamb =25 °C, RL =8 ,fi = 1 kHz, fs = 44.1 kHz, fsw = 400 kHz,
24-bit I2S input data, MCLK clock mode, typical application diagram (Figure 13).
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
General
VDDA
analog supply
voltage
812
20
V
VDDP
power supply
voltage
812
20
V
VDDA(3V3)
analog supply
voltage (3.3 V)
3.0
3.3
3.6
V
VDDD(3V3)
digital supply
voltage (3.3 V)
3.0
3.3
3.6
V
IP
supply current
soft mute mode, with load,
lter and snubbers
connected
[1] -38
45
mA
sleep mode
160
270
A
IDDA(3V3)
analog supply
current (3.3 V)
operating mode
I2S slave mode
-
2
4
mA
I2S master mode
-
4
6
mA
sleep mode
VDDA =VDDP = 12 V
-
120
-
A
VDDA =VDDP = 1 V
-
40
70
A
IDDD(3V3)
digital supply
current (3.3 V)
operating mode
I2S slave mode
-
15
25
mA
I2S master mode
-
25
40
mA
sleep mode;
DATA = WS = BCK =
MCLK = 0 V
-4
30
A
Po(RMS)
RMS output power Continuous time output power per channel; THD = 10 %;
RL =8
VDDA = VDDP = 12 V
-
8.3
-
W
VDDA = VDDP = 13.5 V
-
10
-
W
VDDA = VDDP = 15 V
-
12
-
W
Short time (
≤ 10 s) output power per channel; THD = 10 %;
RL =8
VDDA = VDDP = 17 V
-
15
-
W
ηpo
output power
efciency
RL =8 ; Po(RMS) = 8.3 W
-
88
-
%
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