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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: 54/66頁
文件大小: 386K
代理商: TFA9812HN/N1,557
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
58 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
VP = 12 V; Vripple = 500 mV (RMS) reference to ground;
No input signal
(1) RL = 8
(2) RL = 6
VP = 15 V; 20 kHz AES17 lter
(1) RL = 2 × 8
(2) RL = 2 × 6
Fig 21. SVRR as a function of frequency
Fig 22. S/N ratio as a function of output power
010aaa488
60
40
80
20
0
SVRR
(dB)
100
fi (Hz)
10
105
104
102
103
(1)
(2)
010aaa489
70
80
60
90
100
S/N
(dB)
50
Po (W/channel)
102
102
10
101
1
(1)
(2)
a. VP = 15 V; RL = 2 × 6 BTL; fi = 1 kHz
b. VP = 20 V; RL = 2 × 8 BTL; fi = 1 kHz
(1) Tact(th_fold) = 125 °C
(2) Tact(th_fold) = 105 °C
(3) Tact(th_fold) = 90 °C
Fig 23. Output power as a function of time
time (s)
0
600
480
240
360
120
010aaa490
10
15
5
20
25
Po
(W/chan.)
0
(1)
(2)
(3)
time (s)
0
600
480
240
360
120
010aaa491
10
15
5
20
25
Po
(W/chan.)
0
(1)
(2)
(3)
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