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LM49350 データシート(PDF) 10 Page - Texas Instruments

部品番号 LM49350
部品情報  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
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

LM49350 データシート(HTML) 10 Page - Texas Instruments

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LM49350, LM49350RLEVAL
SNAS359D – SEPTEMBER 2008 – REVISED JUNE 2012
www.ti.com
OPERATING RATINGS
Temperature Range
−40°C to +85°C
Supply Voltage
A_VDD and LS_VDD
(1)
2.7V to 5.5V
D_VDD
1.7V to 2.0V
I/O_VDD
1.6V to 4.5V
(1)
LS_VDD need to be the highest voltage than A_VDD, D_VDD, and I/O_VDD. For proper power supply sequence, LS_VDD need to be
applied first.
ELECTRICAL CHARACTERISTICS: A_VDD = LS_VDD = 3.3V; D_VDD = I/O_VDD = 1.8V
(1) (2)
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)
DC CHARACTERISTICS (Digital current combines D_VDD and I/O_VDD. Analog current combines A_VDD and LS_VDD)
Shutdown Mode,
DISD
Digital Shutdown Current
2
15
µA (max)
fMCLK = 13MHz, PLL Off
DIST
Digital Standby Current
fMCLK = 12.288MHz, PMC On only
0.25
1
mA (max)
fMCLK = 11.2896MHz, fS = 44.1kHz,
Digital Active Current (MP3 Mode)
Stereo DAC On, OSRDAC = 128,
0.9
2
mA (max)
PLL Off, HP On
Digital Active Current (FM Mode)
fMCLK = 13MHz
0.2
0.5
mA (max)
Analog Audio modes
DIDD
Digital Active Current (FM Record
fMCLK = 12.288MHz, fS = 48kHz,
Mode)
Stereo ADC On, OSRADC = 128,
1.5
2
mA (max)
PLL Off, Stereo Analog Inputs On
Digital Active Current (CODEC
fMCLK = 11.2896MHz, fS = 44.1kHz,
Mode)-
Mono ADC On, Stereo DAC On,
2.7
3.8
mA (max)
OSR = 128, PLL Off, MIC On
AISD
Analog Shutdown Current
Shutdown Mode
0.3
5
μA (max)
AIST
Analog Standby Quiescent Current
Reference Voltages On only
0.85
1.5
mA (max)
fMCLK = 11.2896MHz, fS = 44.1kHz,
Analog Supply Current (MP3 Mode)
Stereo DAC On, OSRDAC = 128,
7.8
10
mA (max)
PLL Off, HP On
Analog Supply Current (FM Mode)
Stereo Analog Inputs On, HP On
5.3
7
mA (max)
fMCLK = 12.288MHz, fS = 48kHz,
AIDD
Analog Supply Current (FM Record
Stereo ADC On, OSRADC = 128,
9.8
12
mA (max)
Mode)
PLL Off, Stereo Analog Inputs On
fMCLK = 11.2896MHz, fS = 44.1kHz,
Analog Supply Current (CODEC
Mono ADC On, Stereo DAC On,
13
15
mA (max)
Mode)
OSR = 128, PLL Off, MIC On
fMCLK = 13MHz,
PLLIDD
PLL Total Active Current
2.9
5.5
mA (max)
fPLLOUT = 12MHz, PLL On only
HPIDD
Headphone Quiescent Current
Stereo HP On only
3.5
mA
LSIDD
Loudspeaker Quiescent Current
LS On only
2.9
mA
MICIDD
Microphone Quiescent Current
mono MIC + MIC Bias On
0.5
mA
ADCIDD
ADC Total Active Current
fS = 48kHz, Stereo
9
mA
DACIDD
DAC Total Active Current
fS = 48kHz, Stereo
5.5
mA
(1)
“Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating
Conditions indicate conditions at which the device is functional and the device should not be operated beyond such conditions. All
voltages are measured with respect to the ground pin, unless otherwise specified.
(2)
The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not ensured.
(3)
Typical values represent most likely parametric norms at TA = +25ºC, and at the Recommended Operation Conditions at the time of
product characterization and are not ensured.
(4)
Datasheet min/max specification limits are specified by test or statistical analysis.
10
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Copyright © 2008–2012, Texas Instruments Incorporated
Product Folder Links: LM49350 LM49350RLEVAL


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