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LM4985TM датащи(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали LM4985TM
подробное описание детали  Stereo 135mW Low Noise Headphone Amplifier with Selectable Capacitively Coupled or Output Capacitor-less (OCL) Output and Digitally Controlled (I2C) V
PDF  29 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4985TM датащи(HTML) 5 Page - National Semiconductor (TI)

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Absolute Maximum Ratings (Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
DD,I
2CV
DD)
6.0V
Storage Temperature
−65˚C to +150˚C
Input Voltage (IN1, IN2, OUT1,
OUT2, BYPASS, CNTGND, GND
pins relative to the V
DD pin)
-0.3V to V
DD + 0.3V
Input Voltage (ADR, SDA, SCL
pins, relative to the I
2CV
DD pin)
-0.3V to I
2CV
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
109˚C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ 85˚C
Supply Voltage
V
DD
2.3V
≤ V
CC
≤ 5.5V
I
2CV
DD
1.7V
≤ I2CV
DD
≤ 5.5V
Electrical Characteristics V
DD =5V (Notes 1, 2)
The following specifications apply for R
L =16
Ω, f = 1kHz, and C
B = 4.7µF unless otherwise specified. Limits apply to TA =
25˚C.
Symbol
Parameter
Conditions
LM4985
Units
(Limits)
Typ
(Note 6)
Limit
(Notes 7,
8)
I
DD
Quiescent Power Supply Current
V
IN = 0V, IOUT =0A
Single-Channel no load OCL
Single-Channel no load C-CUPL
Dual-Channel no load OCL
Dual-Channel no load C-CUPL
2
1.5
3
2.3
4.9
3.8
mA (max)
I
SD
Shutdown Current
V
SHUTDOWN = GND
0.1
1.0
µA (max)
V
SDIH
Logic Voltage Input High
3.5
V (min)
V
SDIL
Logic Voltage Input Low
1.5
V (max)
P
O
Output Power
THD
≤ 1%; f
IN = 1kHz
R
LOAD =16
Ω OCL
135
115
R
LOAD =16
Ω C-CUPL
135
mW (min)
R
LOAD =32
Ω OCL
79
70
R
LOAD =32
Ω C-CUPL
80
THD+N
Total Harmonic Distortion + Noise
R
LOAD =16
Ω OCL, P
O = 100mW
R
LOAD =16
Ω C-CUPL, P
O = 100mW
R
LOAD =32
Ω OCL, P
O = 60mW
R
LOAD =32
Ω C-CUPL, P
O = 70mW
0.08
0.02
0.04
0.01
%
V
ON
Output Noise Voltage
V
IN = AC GND, AV = 0dB, A-weighted
15
µV
PSRR
Power Supply Rejection Ratio
V
RIPPLE = 200mVp-p (Note 9)
f
IN = 217Hz sinewave
OCL
C-CUPL
77
65
57
dB (min)
f
IN = 1kHz sinewave
OCL
C-CUPL
77
65
60
Xtalk
Channel-to-channel Crosstalk
P
out = 40mW. OCL
R
LOAD =16
Ω
R
LOAD=32
Ω
51
56
dB
P
out = 50mW. C-CUPL
R
LOAD =16
Ω
R
LOAD=32
Ω
58
68
dB
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