参数资料
型号: TS4997
厂商: 意法半导体
英文描述: 2 x 1W differential input stereo audio amplifier with programmable 3D effects
中文描述: 2个1W的差分输入立体声音频放大器,可编程的3D效果
文件页数: 6/34页
文件大小: 434K
代理商: TS4997
Electrical characteristics
TS4997
6/34
Table 5.
V
CC
= +3.3V, GND = 0V, T
amb
= 25°C (unless otherwise specified)
Parameter
Symbol
Min.
Typ.
Max.
Unit
I
CC
Supply current
No input signal, no load, left and right channel active
6.6
8.6
mA
I
STBY
Standby current
(1)
No input signal, V
STBYL
= GND, V
STBYR
= GND, R
L
= 8
Ω
10
2000
nA
V
oo
Output offset voltage
No input signal, R
L
= 8
Ω
1
35
mV
P
o
Output power
THD = 1% Max, F = 1kHz, R
L
= 8
Ω
370
460
mW
THD + N
Total harmonic distortion + noise
P
o
= 300mW
rms
, G = 6dB, R
L
= 8
Ω,
20Hz
F
20kHz
Power supply rejection ratio
(2)
, inputs grounded
R
L
= 8
Ω,
G = 6dB
,
Cb = 1μF, V
ripple
= 200mV
pp
, 3D effect off
F = 217Hz
F = 1kHz
0.5
%
PSRR
80
75
dB
CMRR
Common mode rejection ratio
(3)
R
L
= 8
Ω,
G = 6dB
,
C
b
= 1μF, V
incm
= 200mV
pp
, 3D effect off
F = 217Hz
F = 1kHz
57
57
dB
SNR
Signal-to-noise ratio
A-weighted, G = 6dB, C
b
= 1μF, RL = 8
Ω,
3D effect off
(THD + N
0.5%, 20Hz < F < 20kHz)
104
dB
Crosstalk
Channel separation, R
L
= 8
Ω
, G = 6dB, 3D effect off
F = 1kHz
F = 20Hz to 20kHz
105
80
dB
V
N
Output voltage noise, F = 20Hz to 20kHz, R
L
= 8
Ω,
G=6dB
C
b
= 1μF, 3D effect off
Unweighted
A-weighted
15
10
μ
Vrms
Gain
Gain value (R
IN
in k
Ω
)
V/V
t
WU
Wake-up time (C
b
= 1μF)
47
ms
t
STBY
Standby time (C
b
= 1μF)
10
μs
Φ
M
Phase margin at unity gain
R
L
= 8
Ω
, C
L
= 500pF
65
Degrees
GM
Gain margin
R
L
= 8
Ω
, C
L
= 500pF
15
dB
GBP
Gain bandwidth product
R
L
= 8
Ω
1.5
MHz
1.
Standby mode is active when V
STBY
is tied to GND.
Dynamic measurements - 20*log(rms(V
out
)/rms(V
ripple
)). V
ripple
is the sinusoidal signal superimposed upon V
CC
.
Dynamic measurements - 20*log(rms(V
out
)/rms(V
incm
)).
2.
3.
Ω
IN
--R
Ω
IN
---R
Ω
IN
---R
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