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TS4909 数据表(PDF) 7 Page - STMicroelectronics

部件名 TS4909
功能描述  Dual mode low power 150mW stereo headphone amplifier with capacitor-less and single-ended outputs
PDF  32 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

TS4909 数据表(HTML) 7 Page - STMicroelectronics

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TS4909
Electrical characteristics
7/32
Table 6.
Electrical characteristics at VCC = +2.6V
with GND = 0V, Tamb = 25°C (unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ. Max. Unit
ICC
Supply
current
No input signal, no load, single-ended
No input signal, no load, phantom ground
1.9
2.8
2.7
4
mA
ISTBY
Standby
current
No input signal, RL=32Ω
10
1000
nA
Pout
Output power
THD+N = 1% max, F = 1kHz, RL = 32Ω, single-ended
THD+N = 1% max, F = 1kHz, RL = 16Ω, single-ended
THD+N = 1% max, F = 1kHz, RL = 32Ω, phantom ground
THD+N = 1% max, F = 1kHz, RL = 16Ω, phantom ground
15
22
15
22
23
38
23
39
mW
THD+N
Total
harmonic
distortion +
noise
(Av=-1)
RL = 32Ω, Pout = 20mW, 20Hz ≤ F ≤ 20kHz, single-ended
RL = 16Ω, Pout = 30mW, 20Hz ≤ F ≤ 20kHz, single-ended
RL = 32Ω, Pout = 20mW, 20Hz ≤ F ≤ 20kHz, phantom ground
RL = 16Ω, Pout = 30mW, 20Hz ≤ F ≤ 20kHz, phantom ground
0.3
0.3
0.3
0.3
%
PSRR
Power supply
rejection ratio
Inputs grounded (1), Av=-1, RL>=16Ω, Cb=1μF, F = 217Hz,
Vripple = 200mVpp
Single-ended output referenced to phantom ground
Single-ended output referenced to ground
64
59
70
65
dB
Iout
Max output
current
THD +N
≤1%, RL = 16Ω connected between out and VCC/2
70
mA
VO
Output swing
VOL: RL = 32Ω
VOH: RL = 32Ω
VOL: RL = 16Ω
VOH: RL = 16Ω
2.25
2.11
0.11
2.45
0.18
2.32
0.3
0.44
V
SNR
Signal-to-
noise ratio
A weighted, Av=-1, RL = 32Ω, THD +N < 0.4%,
20Hz
≤ F ≤ 20kHz
Single-ended
Phantom ground
99
100
dB
Cross-
talk
Channel
separation
RL = 32Ω, Av=-1, phantom ground
F = 1kHz
F = 20Hz to 20kHz
RL = 32Ω, Av=-1, single-ended
F = 1kHz
F = 20Hz to 20kHz
-73
-68
-110
-90
dB
VOO
Output offset
voltage
Phantom ground configuration, floating inputs, Rfeed=22KΩ
520
mV
tWU
Wake-up
time
Phantom ground configuration
Single-ended configuration
50
100
80
160
ms
1.
Guaranteed by design and evaluation.



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