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TS4962IJT Datasheet(PDF) 4 Page - STMicroelectronics

No. de pieza TS4962IJT
Descripción Electrónicos  3W Filter-free Class D Audio Power Amplifier
PDF  22 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4962IJT Datasheet(HTML) 4 Page - STMicroelectronics

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TS4962
Electrical Characteristics
4/22
3 Electrical Characteristics
Table 3.
VCC = +5V, GND = 0V, VICM =2.5V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply Current
No input signal, no load
2.3
3.3
mA
ISTANDBY
Standby Current 1
No input signal, VSTBY = GND
1)
Standby mode is active when Vstdby is tied to GND.
10
1000
nA
Voo
Output Offset Voltage
No input signal, RL = 8Ω
325
mV
Po
Output Power, G=6dB
THD = 1% Max, f = 1kHz, RL = 4Ω
THD = 10% Max, f = 1kHz, RL = 4Ω
THD = 1% Max, f = 1kHz, RL = 8Ω
THD = 10% Max, f = 1kHz, RL = 8Ω
2.3
3
1.4
1.75
W
THD + N
Total Harmonic Distortion + Noise
Po = 900 mWRMS, G = 6dB, 20Hz < f < 20kHz,
RL = 8Ω + 15µH, BW < 30kHz
Po = 1WRMS, G = 6dB, f = 1kHz,
RL = 8Ω + 15µH, BW < 30kHz
1
0.4
%
Efficiency
Efficiency
Po = 2 WRMS, RL = 4Ω + ≥ 15µH
Po =1.2 WRMS, RL = 8Ω+ ≥ 15µH
78
88
%
PSRR
Power Supply Rejection Ratio with inputs grounded 2
f = 217Hz, RL = 8Ω, G=6dB, Vripple = 200mVpp
2)
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz.
63
dB
CMRR
Common Mode Rejection Ratio,
f = 217Hz, RL = 8Ω, G = 6dB, ∆Vic = 200mVpp
57
dB
Gain
Gain value (Rin in kΩ)
V/V
RSTDBY
Internal Resistance From Standby to GND
273
300
327
k
Ω
FPWM
Pulse Width Modulator Base Frequency
180
250
320
kHz
SNR
Signal to Noise ratio (A Weighting), Po = 1.2W, RL = 8Ω
85
dB
TWU
Wake-up time
510ms
TSTB
Standby time
510ms
VN
Output Voltage Noise f = 20Hz to 20kHz, G = 6dB
Unweighted RL = 4Ω
A weighted RL = 4Ω
Unweighted RL = 8Ω
A weighted RL = 8Ω
Unweighted RL = 4Ω + 15µH
A weighted RL = 4Ω + 15µH
Unweighted RL = 4Ω + 30µH
A weighted RL = 4Ω + 30µH
Unweighted RL = 8Ω + 30µH
A weighted RL = 8Ω + 30µH
Unweighted RL = 4Ω + Filter
A weighted RL = 4Ω + Filter
Unweighted RL = 4Ω + Filter
A weighted RL = 4Ω + Filter
85
60
86
62
83
60
88
64
78
57
87
65
82
59
90
66
µVRMS
273 k
Ω
R
in
------------------
300k
Ω
R
in
------------------
327k
Ω
R
in
------------------



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