參數(shù)資料
型號(hào)： TS4962
廠商： 意法半導(dǎo)體
英文描述： 3W Filter-free Class D Audio Power Amplifier
中文描述： 3W無(wú)濾波器D類音頻功率放大器
文件頁(yè)數(shù)： 4/22頁(yè)
文件大小： 1275K
代理商： TS4962
TS4962
Electrical Characteristics
4/22
3 Electrical Characteristics
Table 3.
V
CC
= +5V, GND = 0V, V
ICM
= 2.5V, T
amb
= 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
I
CC
Supply Current
No input signal, no load
Standby Current
1
No input signal, V
STBY
= GND
Output Offset Voltage
No input signal, R
L
= 8
Output Power, G=6dB
THD = 1% Max, f = 1kHz, R
L
= 4
THD = 10% Max, f = 1kHz, R
L
= 4
THD = 1% Max, f = 1kHz, R
L
= 8
THD = 10% Max, f = 1kHz, R
L
= 8
Total Harmonic Distortion + Noise
Po = 900 mW
RMS
, G = 6dB, 20Hz < f < 20kHz,
R
L
= 8
+ 15μH, BW < 30kHz
Po = 1W
RMS
, G = 6dB, f = 1kHz,
R
L
= 8
+ 15μH, BW < 30kHz
Efficiency
Po = 2 W
RMS
, R
L
= 4
+ ≥
15μH
Po =1.2 W
RMS
, R
L
= 8
+ ≥
15μH
Power Supply Rejection Ratio with inputs grounded
2
f = 217Hz, R
L
= 8
,
G=6dB
,
Vripple = 200mV
pp
Common Mode Rejection Ratio,
f = 217Hz, R
L
= 8
,
G = 6dB,
Vic = 200mV
pp
2.3
3.3
mA
I
STANDBY
1)
Standby mode is active when Vstdby is tied to GND.
10
1000
nA
Voo
3
25
mV
Po
2.3
3
1.4
1.75
W
THD + N
1
0.4
%
Efficiency
78
88
%
PSRR
2)
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to V
cc
@ f = 217Hz.
63
dB
CMRR
57
dB
Gain
Gain value (R
in
in k
)
V/V
R
STDBY
F
PWM
SNR
T
WU
T
STB
Internal Resistance From Standby to GND
Pulse Width Modulator Base Frequency
Signal to Noise ratio (A Weighting), Po = 1.2W, R
L
= 8
Wake-up time
Standby time
Output Voltage Noise f = 20Hz to 20kHz, G = 6dB
Unweighted R
L
= 4
A weighted R
L
= 4
Unweighted R
L
= 8
A weighted R
L
= 8
Unweighted R
L
= 4
+ 15μH
A weighted R
L
= 4
+ 15μH
Unweighted R
L
= 4
+ 30μH
A weighted R
L
= 4
+ 30μH
Unweighted R
L
= 8
+ 30μH
A weighted R
L
= 8
+ 30μH
Unweighted R
L
= 4
+ Filter
A weighted R
L
= 4
+ Filter
Unweighted R
L
= 4
+ Filter
A weighted R
L
= 4
+ Filter
273
180
300
250
85
5
5
327
320
k
kHz
dB
ms
ms
10
10
V
N
85
60
86
62
83
60
88
64
78
57
87
65
82
59
90
66
μ
V
RMS
2Rin
3Rin
Rin
327k
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