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LM49350RLEVAL Datasheet(PDF) 13 Page - Texas Instruments

Part # LM49350RLEVAL
Description  LM49350 Boomer짰 Audio Power Amplifier Series High Performance Audio Codec Sub-System with a Ground-Referenced Stereo Headphone Amplifier & an Ultra Low EMI Class D Loudspeaker Amplifier with Dual I2S/PCM Digital Audio Interfaces
PDF  108 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM49350RLEVAL Datasheet(HTML) 13 Page - Texas Instruments

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LM49350, LM49350RLEVAL
www.ti.com
SNAS359D – SEPTEMBER 2008 – REVISED JUNE 2012
ELECTRICAL CHARACTERISTICS: A_VDD = LS_VDD = 3.3V; D_VDD = I/O_VDD =
1.8V
(1)(2) (continued)
The following specifications apply for RL(LS) = 8Ω, RL(HP) = 32Ω, f = 1kHz, unless otherwise specified. Limits apply for TA =
25°C.
LM49350
Units
Symbol
Parameter
Conditions
(Limits)
Typical(3)
Limit(4)
MIC BIAS
VBIAS
Microphone Bias Voltage
MIC input selected
2.2
V
VOLUME CONTROL
Minimum Gain
–46.5
dB
VCRAUX
Stereo Input Volume Control Range
Maximum Gain
12
dB
Minimum Gain
–76.5
dB
VCRDAC
DAC Volume Control Range
Maximum Gain
18
dB
Minimum Gain
–76.5
dB
VCRADC
ADC Volume Control Range
Maximum Gain
18
dB
Minimum Gain
6
dB
VCRMIC
MIC Volume Control Range
Maximum Gain
36
dB
SSAUX
AUX Volume Control Stepsize
1.5
dB
SSDAC
DAC Volume Control Stepsize
1.5
dB
SSADC
DAC Volume Control Stepsize
1.5
dB
SSMIC
MIC Volume Control Stepsize
2
dB
SVAUX
AUX Volume Setting Variation
±1
dB (max)
SVMIC
MIC Volume Setting Variation
±1
dB (max)
ANALOG INPUTS
AUXR Gain = 12dB
17.5
k
Ω
AUXR_RIN
Right Auxiliary Input Impedance
AUXR Gain = 0dB
38
k
Ω
AUXR Gain = –46.5dB
64
k
Ω
AUXL Gain = 12dB
17.5
k
Ω
AUXL_RIN
Right Auxiliary Input Impedance
AUXL Gain = 0dB
38
k
Ω
AUXL Gain = –46.5dB
64
k
Ω
MICR_RIN
Right Microphone Input Impedance
All MIC gain settings
50
k
Ω
MICL_RIN
Left Microphone Input Impedance
All MIC gain settings
50
k
Ω
Copyright © 2008–2012, Texas Instruments Incorporated
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