参数资料
型号: TFA9812HN
厂商: NXP SEMICONDUCTORS
元件分类: 音频/视频放大
英文描述: 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC48
封装: 7 X 7 MM, 0.85 MM HEIGHT, PLASTIC, MO-220, SOT619-8, HVQFN-48
文件页数: 42/66页
文件大小: 386K
代理商: TFA9812HN
TFA9812_2
NXP B.V. 2009. All rights reserved.
Preliminary data sheet
Rev. 02 — 22 January 2009
47 of 66
NXP Semiconductors
TFA9812
BTL stereo Class-D audio amplier with I2S input
13.2 AC characteristics
Table 56.
AC characteristics
Unless specied otherwise, VDDA =VDDP = 12 V, VDDA(3V3) =VDDD(3V3) = 3.3 V, Tamb =25 °C, Rs < 0.1 [1], 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
Output power per channel
Po(RMS)
RMS output power
Continuous time output power per channel; THD = 1 %, RL = 6
VDDA = VDDP = 12 V
-
7.9
-
W
VDDA = VDDP = 15 V
-
12
-
W
Continuous time output power per channel; THD = 10 %, RL = 6
VDDA = VDDP = 12 V
-
9.7
-
W
Short time (
≤ 10 s) output power per channel; THD = 10 %, RL = 6
VDDA = VDDP = 15 V
-
15
-
W
Continuous time output power per channel; THD = 1 %, RL = 8
VDDA = VDDP = 12 V
-
6.6
-
W
VDDA = VDDP = 15 V
-
10
-
W
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
Performance
THD+N
total harmonic
distortion-plus-noise
PO = 1 W; AES17 brick wall lter
-
0.07
0.1
%
S/N
signal-to-noise ratio
VO = 10 V; A-weighted
-
103
-
dB
Vn(o)
output noise voltage
MCLK clock jitter < 200 ps; AES17 brick-wall lter
operating mode
-
70
-
V
soft mute mode
-
70
-
V
hard mute mode
-
30
-
V
αcs
channel separation
Po(RMS) = 1 W; aggressor channel:
fi = 1 kHz
50
54
-
dB
SVRR
supply voltage ripple rejection
Vripple = 2 Vpp; fripple = 100 Hz
55
60
-
dB
ηpo
output power efciency
RL = 8 ; Po(RMS) = 8.3 W
[2] -88
-
%
RL = 6 ; Po(RMS) = 9.7 W
[2] -83
-
%
Power-up times and delay times
td(on)
turn-on delay time
-
155
ms
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