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LM4935RLEVAL 데이터시트(PDF) 10 Page - Texas Instruments

부품명 LM4935RLEVAL
상세설명  Audio Power Amplifier Series Audio Sub-System with Dual-Mode Stereo Headphone & Mono High Efficiency Loudspeaker Amplifiers and Multi-Purpose
PDF  91 Pages
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제조업체  TI1 [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI1 - Texas Instruments

LM4935RLEVAL 데이터시트(HTML) 10 Page - Texas Instruments

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LM4935, LM4935RLEVAL
SNAS296D – OCTOBER 2005 – REVISED MARCH 2006
www.ti.com
Electrical Characteristics(1)(2)(3) (continued)
Unless otherwise stated PLL_VDD = 3.3V, D_VDD = 3.3V, BB_VDD = 1.8V, A_VDD = 3.3V, LS_VDD = 3.3V. The following
specifications apply for the circuit shown in Figure 2-2 unless otherwise stated. Limits apply for 25°C.
LM4935
Symbol
Parameter
Conditions
Units
Typical(4)
Limit(5)
LOUDSPEAKER AMPLIFIER
PLS
Max Loudspeaker Power
8
Ω load, LS_VDD = 5V
1.3
W
8
Ω load, LS_VDD = 4.2V
0.9
W
8
Ω load, LS_VDD = 3.3V
0.6
0.44
W (min)
LSTHD+N
Loudspeaker Harmonic Distortion
8
Ω load, LS_VDD = 3.3V,
0.4
%
PO = 400mW
LSEFF
Efficiency
0 dB Input
84
%
MCLK = 12.000 MHz
PSRRLS
Power Supply Rejection Ration
AUX inputs terminated
(Loudspeaker)
CBYPASS = 1.0 µF
54
dB
VRIPPLE = 200 mVP-P
fRIPPLE = 217 Hz
SNRLS
Signal to Noise Ratio
From 0 dB Analog AUX input at 1 kHz, A-
76
dB
weighted
eN
Output Noise
A-weighted
350
µV
VOS
Offset Voltage
7
mV
HEADPHONE AMPLIFIER
PHP
Headphone Power
32
Ω load, 3.3V, SE
mW
33
20
(min)
16
Ω load, 3.3V, SE
52
mW
32
Ω load, 3.3V, OCL, VCM = 1.5V
31
mW
32
Ω load, 3.3V, OCL, VCM = 1.2V
20
mW
16
Ω load, 3.3V, OCL, VCM = 1.5V
50
mW
16
Ω load, 3.3V, OCL, VCM = 1.2V
32
mW
AUX inputs terminated
CBYPASS = 1.0 µF
VRIPPLE = 200 mVP-P
fRIPPLE = 217 Hz
Power Supply Rejection Ratio
SE Mode
60
dB
PSRRHP
(Headphones)
OCL Mode
68
dB
VCM = 1.2V
OCL Mode
65
dB
VCM = 1.5V
From 0dB Analog AUX input
A-weighted
SE Mode
98
dB
SNRHP
Signal to Noise Ratio
OCL Mode
97
dB
VCM = 1.2V
OCL Mode
96
dB
VCM = 1.5V
HPTHD+N
Headphone Harmonic Distortion
32
Ω load, 3.3V, PO = 7.5mW
0.05
%
eN
Output Noise
A-weighted
12
µV
ΔACH-CH
Stereo Channel-to-Channel Gain
0.3
dB
Mismatch
SE Mode
61
dB
XTALK
Stereo Crosstalk
OCL Mode
63
dB
EARPIECE AMPLIFIER
PEP
Earpiece Power
32
Ω load, 3.3V
mW
115
100
(min)
16
Ω load, 3.3V
150
mW
10
Electric Specifications
Copyright © 2005–2006, Texas Instruments Incorporated
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