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參數資料
| 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： | 41/66頁 |
| 文件大小： | 386K |
| 代理商： | TFA9812HN/N1,518 |
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TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
46 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
[1]
IP is the current through the analog supply voltage (VDDA) pin added to the current through the power supply voltage (VDDP) pin.
[2]
Thermal foldback temperature sensor is not located at hottest spot. Hottest spot is 12
°C higher.
[3]
Current limiting concept: in overcurrent condition no interruption of the audio signal in case of impedance drop.
[4]
PLL output frequency not external available.
Thermal Foldback (TF)
Tact(th_fold)
thermal foldback
activation
temperature
[2] 118
125
132
°C
OverTemperature Protection (OTP)
Tact(th_prot)
thermal protection
activation
temperature
-
160
°C
OverVoltage Protection (OVP)
VP(ovp)
overvoltage
protection supply
voltage
20
22.3
24
V
UnderVoltage Protections (UVP)
VP(uvp)
undervoltage
protection supply
voltage
UVP on VDDA
7
7.5
8
V
UVP on VDDA(3V3)
1.6
2.2
3.0
V
OverCurrent Protection (OCP)
IO(ocp)
overcurrent
protection output
current
[3] 3.0
3.3
3.6
A
Window Protection (WP)
Vo
output voltage
high level
-
VDDA 1-
V
low level
-
REFA + 1
-
V
OverFrequency Protection (OFP)
fOFP
Overfrequency
protection frequency
At PLL output frequency
[4] 100
140
185
MHz
UnderFrequency Protection (OFP)
fUFP
Underfrequency
protection frequency
At PLL output frequency
[4] 30
45
60
MHz
Table 55.
DC characteristics …continued
Unless specied otherwise, VDDA =VDDP = 12 V, VSSP1 = VSSP2 = 0 V, 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
Condition
Min
Typ
Max
Unit
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