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LM48310 Datenblatt(PDF) 5 Page - Texas Instruments

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Teilenummer LM48310
Bauteilbeschribung  LM48310 Ultra-Low EMI, Filterless, 2.6W, Mono, Class D Audio Power Amplifier with E2S
PDF  22 Pages
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Hersteller  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM48310 Datenblatt(HTML) 5 Page - Texas Instruments

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LM48310
www.ti.com
SNAS430D – NOVEMBER 2007 – REVISED MAY 2013
ELECTRICAL CHARACTERISTICS VDD = PVDD = 5V
(1)(2) (continued)
The following specifications apply for AV = 12dB, (RL = 8Ω, SYNC_IN = VDD (Spread Spectrum mode), f = 1kHz, unless
otherwise specified. Limits apply for TA = 25°C.
LM48310
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)(2)
VIL
Logic Input Low Voltage
SD input, VDD = 3.6V
0.4
V (max)
TWU
Wake Up Time
7.5
ms
SYNC_IN = VDD (Spread Spectrum)
300±30
kHz
SYNC_IN = GND (Fixed Frequency)
300
kHz
SYNC_IN = External Clock
fSW
Switching Frequency
200
kHz
Minimum Frequency
SYNC_IN = External Clock
1000
kHz
Maximum Frequency
11
dB (min)
AV
Gain
12
13
dB (max)
RIN
Input Resistance
20
17
k
Ω (min)
RL = 4Ω, THD = 10%
f = 1kHz, 22kHz BW
VDD = 5V
2.6
W
VDD = 3.6V
1.3
W
VDD = 2.5V
555
mW
RL = 8Ω, THD = 10% (max)
f = 1kHz, 22kHz BW
VDD = 5V
1.6
W
VDD = 3.6V
800
mW
VDD = 2.5V
354
mW
PO
Output Power
RL = 4Ω, THD = 1% (max)
f = 1kHz, 22kHz BW
VDD = 5V
2.1
W
VDD = 3.6V
1
W
VDD = 2.5V
446
mW
RL = 8Ω, THD = 1% (max)
f = 1kHz, 22kHz BW
VDD = 5V
1.3
1.1
W (min)
VDD = 3.6V
640
mW
VDD = 2.5V
286
mW
PO = 200mW, RL = 8Ω, f = 1kHz
0.03
% (max)
THD+N
Total Harmonic Distortion + Noise
PO = 100mW, RL = 8Ω, f = 1kHz
0.03
%
VRIPPLE = 200mVP-P Sine,
fRIPPLE = 217Hz, Inputs AC GND,
82
dB
CIN = 1μF, Input referred
Power Supply Rejection Ratio
PSRR
(Input Referred)
VRIPPLE = 200mVP-P Sine,
fRIPPLE = 1kHz, Inputs AC GND,
80
dB
CIN = 1μF, Input referred
VRIPPLE = 1VP-P
CMRR
Common Mode Rejection Ratio
70
dB
fRIPPLE = 217Hz
VDD = 5V, POUT = 1W
88
%
RL = 8Ω, f = 1kHz
η
Efficiency
VDD = 3.6V, POUT = 400mW
85
%
RL = 8Ω, f = 1kHz
VDD = 5V, PO = 1W,
97
dB
Fixed Frequency Mode
SNR
Signal to Noise Ratio
VDD = 5V, PO = 1W,
97
dB
Spread Spectrum Mode
Input referred,
Fixed Frequency Mode,
14
μV
A-weighted Filter
εOS
Output Noise
Input referred,
Spread Spectrum Mode,
28
μV
Unweighted
Copyright © 2007–2013, Texas Instruments Incorporated
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