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LM4922TL bảng dữ liệu(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
tên linh kiện LM4922TL
Giải thích chi tiết về linh kiện  Ground-Referenced, Ultra Low Noise, Fixed Gain, 80mW Stereo Headphone Amplifier
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nhà sản xuất  NSC [National Semiconductor (TI)]
Trang chủ  http://www.national.com
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Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
4.5V
Storage Temperature
−65˚C to +150˚C
Input Voltage
-0.3V to V
DD + 0.3V
Power Dissipation (Note 3)
Internally Limited
ESD Susceptibility (Note 4)
2000V
ESD Susceptibility (Note 5)
200V
Junction Temperature
150˚C
Thermal Resistance
θ
JA (typ) TLE1411A (Note 11)
86˚C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ 85˚C
Supply Voltage (V
DD)
1.6V
≤ V
DD
≤ 4.2V
Electrical Characteristics V
DD =3V (Note 1)
The following specifications apply for V
DD = 3V and 16
Ω load unless otherwise specified. Limits apply to T
A = 25˚C.
Symbol
Parameter
Conditions
LM4922
Units
(Limits)
Typ
(Note 6)
Limit
(Notes 7, 8)
I
DD
Quiescent Power Supply Current
Auto Standby Mode
V
IN = 0V, inputs terminated
both channels enabled
2.3
mA
Quiescent Power Supply Current
Full Power Mode
V
IN = 0V, inputs terminated
both channels enabled
7
10
mA (max)
V
IN = 0V, inputs terminated
one channel enabled
5mA
I
SD
Shutdown Current
V
SD_LC =VSD_RC = GND
0.1
1.8
µA (max)
V
OS
Output Offset Voltage
R
L =32
Ω,V
IN = 0V
0.7
5
mV (max)
A
V
Voltage Gain
–1.5
V/V
∆A
V
Gain Match
1
%
R
IN
Input Resistance
20
15
25
k
Ω (min)
k
Ω (max)
P
O
Output Power
THD+N = 1% (max); f = 1kHz,
R
L =16
Ω, one channel
80
mW
THD+N = 1% (max); f = 1kHz,
R
L =32
Ω, one channel
65
mW
THD+N = 1% (max); f = 1kHz,
R
L =16
Ω, (two channels in phase)
43
38
mW (min)
THD+N = 1% (max); f = 1kHz,
R
L =32
Ω, (two channels in phase)
50
45
mW (min)
THD+N
Total Harmonic Distortion +
Noise
P
O = 60mW, f = 1kHz, RL =16
single channel
0.04
%
P
O = 50mW, f = 1kHz, RL =32
single channel
0.03
PSRR
Power Supply Rejection Ratio
Full Power Mode
V
RIPPLE = 200mVp-p, Input Referred
f = 217Hz
70
dB
f = 1kHz
65
f = 20kHz
50
SNR
Signal-to-Noise Ratio
R
L =32
Ω,P
OUT = 20mW,
(A-weighted)
f = 1kHz, BW = 20Hz to 22kHz
100
dB
V
IH
Shutdown Input Voltage High
V
DD = 1.8V to 4.2V
1.2
V (min)
V
IL
Shutdown Input Voltage Low
V
DD = 1.8V to 4.2V
0.45
V (max)
T
WU
Wake Up Time From
Auto-Standby
5µs
X
TALK
Crosstalk
R
L =16
Ω,P
O = 1.6mW,
f = 1kHz
60
dB
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