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TS4990IST 데이터시트(PDF) 7 Page - STMicroelectronics

부품명 TS4990IST
상세설명  1.2 W audio power amplifier with active low standby mode
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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TS4990
Electrical characteristics
7/32
Table 6.
Electrical characteristics when VCC = 2.6V, GND = 0V, Tamb = 25°C (unless
otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply current
No input signal, no load
3.1
6
mA
ISTBY
Standby current (1)
No input signal, VSTBY = GND, RL = 8Ω
1.
Standby mode is active when VSTBY is tied to GND.
10
1000
nA
Voo
Output offset voltage
No input signal, RL = 8Ω
110
mV
Pout
Output power
THD = 1% max, F = 1kHz, RL = 8Ω
220
300
mW
THD + N
Total harmonic distortion + noise
Pout = 200mWrms, AV = 2, 20Hz ≤ F ≤ 20kHz, RL =8Ω
0.1
%
PSRR
Power supply rejection ratio(2)
RL = 8Ω, AV = 2, Vripple = 200mVpp, input grounded
F = 217Hz
F = 1kHz
2.
All PSRR data limits are guaranteed by production sampling tests.
Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon
VCC.
55
55
60
62
dB
tWU
Wake-up time (Cb = 1µF)
125
150
ms
tSTBY
Standby time (Cb = 1µF)
10
µs
VSTBYH
Standby voltage level high
1.2
V
VSTBYL
Standby voltage level low
0.4
V
ΦM
Phase margin at unity gain
RL = 8Ω, CL = 500pF
65
Degrees
GM
Gain margin
RL = 8Ω, CL = 500pF
15
dB
GBP
Gain bandwidth product
RL = 8Ω
1.5
MHz
ROUT-GND
Resistor output to GND (VSTBY ≤VSTBYL)
Vout1
Vout2
6
46
k
Ω


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