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LM49352 Datasheet(PDF) 14 Page - Texas Instruments

Part # LM49352
Description  Boomer Mono Class D Audio Codec Subsystem with Ground Referenced Headphone Amplifiers, Earpiece Driver, and Audio DSP
PDF  106 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LM49352 Datasheet(HTML) 14 Page - Texas Instruments

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LM49352
SNAS467E – MARCH 2009 – REVISED MARCH 2013
www.ti.com
Electrical Characteristics
A_VDD = LS_VDD = 3.3V; HP_VDD = 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.
LM49352
Units
Symbol
Parameter
Conditions
Typical
Limit
(Limit)
(3)
(4)
VOLUME CONTROL
Minimum Gain
–46.5
dB
VCRAUX
Stereo Input Volume Control Range
Maximum Gain
18
dB
Minimum Gain
–46.5
dB
VCRMONO
MONO Input Volume Control Range
Maximum Gain
18
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
Minimum Gain
0
dB
Loudspeaker Amplifier Volume Control
VCRLS
Range
Maximum Gain
12
dB
Minimum Gain
–18
dB
Headphone Amplifier Volume Control
VCRHP
Range
Maximum Gain
0
dB
Loudspeaker Amplifier Volume Control
4
dB
SSLS
Stepsize
Headphone Amplifier Volume Control
Refer to
SSHP
dB
Stepsize
Table 19
SSAUX
AUX Input Volume Control Stepsize
1.5
dB
SSMONO
MONO Input Volume Control Stepsize
1.5
dB
SSDAC
DAC Volume Control Stepsize
1.5
dB
SSADC
ADC Volume Control Stepsize
1.5
dB
SSMIC
MIC Volume Control Stepsize
2
dB
SVAUX
AUX Volume Setting Variation
±1
dB (max)
SVMONO
MONO Volume Setting Variation
±1
dB (min)
SVMIC
MIC Volume Setting Variation
±1
dB (max)
ANALOG INPUTS
AUX Gain = 18dB
10
k
Ω
AUX_RIN
Auxiliary Input Impedance
AUX Gain = 0dB
38
k
Ω
AUX Gain = –46.5dB
64
k
Ω
MONO Gain = 18dB
10
k
Ω
MONO_RIN
Mono Input Impedance
MONO Gain = 0dB
38
k
Ω
MONO Gain = –46.5dB
64
k
Ω
MIC_RIN
Microphone Input Impedance
All MIC gain settings
50
k
Ω
14
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Product Folder Links: LM49352



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