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TS4909 数据表(PDF) 8 Page - STMicroelectronics

部件名 TS4909
功能描述  Dual mode low power 150 mW stereo headphone amplifier with capacitor-less and single-ended outputs
PDF  35 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) 8 Page - STMicroelectronics

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Electrical characteristics
TS4909
8/35
Doc ID 11972 Rev 9
Table 5.
Electrical characteristics at VCC = +3.0 V
with GND = 0 V, Tamb = 25°C (unless otherwise specified) (1)
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
I
CC
Supply current
No input signal, no load, single-ended
No input signal, no load, phantom ground
2
2.8
2.8
4.2
mA
I
STBY
Standby
current
No input signal, R
L
=32
Ω
10
1000
nA
P
out
Output power
THD+N = 1% max, F = 1kHz, R
L
= 32
Ω, single-ended
THD+N = 1% max, F = 1kHz, R
L
= 16
Ω, single-ended
THD+N = 1% max, F = 1kHz, R
L
= 32
Ω, phantom ground
THD+N = 1% max, F = 1kHz, R
L
= 16
Ω, phantom ground
20
30
20
30
31
52
31
54
mW
THD+N
Total harmonic
distortion +
noise
(A
v
=-1)
R
L
= 32
Ω, P
out
= 25mW, 20Hz
≤ F ≤ 20kHz, single-ended
R
L
= 16
Ω, P
out
= 40mW, 20Hz
≤ F ≤ 20kHz, single-ended
R
L
= 32
Ω, P
out
= 25mW, 20Hz
≤ F ≤ 20kHz, phantom
ground
R
L
= 16
Ω, P
out
= 40mW, 20Hz
≤ F ≤ 20kHz, phantom
ground
0.3
0.3
0.3
0.3
%
PSRR
Power supply
rejection ratio
Inputs grounded
(2)
, A
v
=-1, RL>=16
Ω, C
b
=1
μF, F = 217Hz,
V
ripple
= 200mVpp
Single-ended output referenced to phantom ground
Single-ended output referenced to ground
64
59
70
65
dB
I
out
Max output
current
THD +N
≤ 1%, R
L
= 16
Ω connected between out and V
CC
/2
82
mA
V
O
Output swing
V
OL
: R
L
= 32
Ω
V
OH
: R
L
= 32
Ω
V
OL
: R
L
= 16
Ω
V
OH
: R
L
= 16
Ω
2.6
2.45
0.12
2.83
0.19
2.70
0.34
0.49
V
SNR
Signal-to-
noise ratio
A-weighted, A
v
=-1, R
L
= 32
Ω, THD +N < 0.4%, 20Hz ≤ F ≤
20kHz
Single-ended
Phantom ground
100
101
dB
Cross-
talk
Channel
separation
R
L
= 32
Ω, A
v
=-1, phantom ground
F = 1kHz
F = 20Hz to 20kHz
R
L
= 32
Ω, A
v
=-1, single-ended
F = 1kHz
F = 20Hz to 20kHz
-73
-68
-110
-90
dB
V
OO
Output offset
voltage
Phantom ground configuration, floating inputs, R
feed
=22K
Ω
520
mV
t
WU
Wake-up time
Phantom ground configuration
Single-ended configuration
50
100
80
160
ms
1.
All electrical values are guaranteed with correlation measurements at 2.6 and 5 V.
2.
Guaranteed by design and evaluation.



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