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TS4890IDT Datasheet(PDF) 11 Page - STMicroelectronics

Part # TS4890IDT
Description  Rail-to-rail output 1 W audio power amplifier with standby mode active low
PDF  46 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS4890IDT Datasheet(HTML) 11 Page - STMicroelectronics

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TS4890
Electrical characteristics
46
THD + N
Total harmonic distortion + noise
Po = 250 mW RMS, Gv = 2,
20 Hz < f < 20 kHz, RL = 8 Ω
0.15
%
PSRR
Power supply rejection ratio (2)
f = 217 Hz, RL = 8 Ω, RFeed = 22 kΩ,
Vripple = 200 mV RMS
77
dB
ɸ
M
Phase margin at unity gain
RL = 8 Ω, CL = 500 pF
70
Degrees
GM
Gain margin
RL = 8 Ω, CL = 500 pF
20
dB
GBP
Gain bandwidth product
RL = 8 Ω
2MHz
1.
Standby mode is active when Vstdby is tied to GND.
2.
Dynamic measurements - 20*log(RMS(Vout)/RMS(Vripple)). Vripple is the superimposed sinus signal to VCC
@ f = 217 Hz.
Table 7. Electrical characteristics (VCC= +2.6 V, GND= 0 V, Tamb = 25 °C, unless
otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit
ICC
Supply current
no input signal, no load
58
mA
ISTANDBY
Standby current (1), no input signal,
Vstdby = GND, RL = 8 Ω
10
1000
nA
Voo
Output offset voltage
no input signal, RL = 8 Ω
520
mV
Po
Output power
THD = 1% max., f = 1 kHz, RL = 8 Ω
260
mW
THD + N
Total harmonic distortion + noise
Po = 200 mW RMS, Gv = 2,
20 Hz < f < 20 kHz, RL = 8 Ω
0.15
%
PSRR
Power supply rejection ratio (2)
f = 217 Hz, RL = 8 Ω, RFeed = 22 kΩ,
Vripple = 200 mV RMS
77
dB
ɸ
M
Phase margin at unity gain
RL = 8 Ω, CL = 500 pF
70
Degrees
GM
Gain margin
RL = 8 Ω, CL = 500 pF
20
dB
GBP
Gain bandwidth product
RL = 8 Ω
2MHz
Table 6. Electrical characteristics (VCC= +3.3 V, GND= 0 V, Tamb = 25 °C, unless
otherwise specified)
Symbol
Parameter
Min.
Typ.
Max.
Unit



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