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LM4949 датащи(PDF) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
номер детали LM4949
подробное описание детали  Stereo Class D Audio Subsystem with OCL Headphone Amplifier
PDF  40 Pages
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производитель  NSC [National Semiconductor (TI)]
домашняя страница  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM4949 датащи(HTML) 8 Page - National Semiconductor (TI)

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Electrical Characteristics V
DD = 3.6V (Notes 1, 2) The following specifications apply for AV = 0dB,
RL(SP) =15µH+8
Ω + 15µH, R
L(HP) =32
Ω, f = 1kHz unless otherwise specified. Limits apply for T
A = 25˚C. (Continued)
Symbol
Parameter
Conditions
LM4949
Units
(Limits)
Typical
Limit
(Note 6)
(Notes 7, 8)
e
N
Noise
Differential Mode, A-weighted, Input Referred
Mono Input
OCL
CC
LS
16.4
15.5
43
µV
µV
µV
All Inputs ON
OCL
CC
LS
29.8
29.2
46.6
µV
µV
µV
Single-Ended Input, A-weighted, Input Referred
Stereo Input
OCL
CC
LS
12
11
45
µV
µV
µV
All Inputs ON
OCL
CC
LS
23.7
22.9
52
µV
µV
µV
η
Efficiency
LS Mode, P
OUT = 400mW, RL =8
Ω
86.5
%
Xtalk
Crosstalk
LS Mode, f = 1kHz, R
L =8
Ω,V
IN =1VP-P
Differential Input Mode
86
dB
OCL HP Mode, f = 1kHz, R
L =32
Ω,V
IN =1VP-P
Differential Input Mode
68
dB
T
ON
Turn on Time
CC Mode
OCL Mode
LS Mode
75
14
31
ms
ms
T
OFF
Turn off Time
From any mode
692
ms
Z
IN
Input Impedance
Maximum Gain
Minimum Gain
24.8
222.7
k
Ω
k
Ω
www.national.com
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