Datasheet

LM49350, LM49350RLEVAL
SNAS359D –SEPTEMBER 2008–REVISED JUNE 2012 www.ti.com
OPERATING RATINGS
Temperature Range −40°C to +85°C
Supply Voltage A_V
DD
and LS_V
DD
(1)
2.7V to 5.5V
D_V
DD
1.7V to 2.0V
I/O_V
DD
1.6V to 4.5V
(1) LS_V
DD
need to be the highest voltage than A_V
DD
, D_V
DD
, and I/O_V
DD
. For proper power supply sequence, LS_V
DD
need to be
applied first.
ELECTRICAL CHARACTERISTICS: A_V
DD
= LS_V
DD
= 3.3V; D_V
DD
= I/O_V
DD
= 1.8V
(1)(2)
The following specifications apply for R
L(LS)
= 8Ω, R
L(HP)
= 32Ω, f = 1kHz, unless otherwise specified. Limits apply for T
A
=
25°C.
LM49350
Units
Symbol Parameter Conditions
(Limits)
Typical
(3)
Limit
(4)
DC CHARACTERISTICS (Digital current combines D_V
DD
and I/O_V
DD
. Analog current combines A_V
DD
and LS_V
DD
)
Shutdown Mode,
DI
SD
Digital Shutdown Current 2 15 µA (max)
f
MCLK
= 13MHz, PLL Off
DI
ST
Digital Standby Current f
MCLK
= 12.288MHz, PMC On only 0.25 1 mA (max)
f
MCLK
= 11.2896MHz, f
S
= 44.1kHz,
Digital Active Current (MP3 Mode) Stereo DAC On, OSR
DAC
= 128, 0.9 2 mA (max)
PLL Off, HP On
Digital Active Current (FM Mode) f
MCLK
= 13MHz
0.2 0.5 mA (max)
Analog Audio modes
DI
DD
Digital Active Current (FM Record f
MCLK
= 12.288MHz, f
S
= 48kHz,
Mode) Stereo ADC On, OSR
ADC
= 128, 1.5 2 mA (max)
PLL Off, Stereo Analog Inputs On
Digital Active Current (CODEC f
MCLK
= 11.2896MHz, f
S
= 44.1kHz,
Mode)- Mono ADC On, Stereo DAC On, 2.7 3.8 mA (max)
OSR = 128, PLL Off, MIC On
AI
SD
Analog Shutdown Current Shutdown Mode 0.3 5 μA (max)
AI
ST
Analog Standby Quiescent Current Reference Voltages On only 0.85 1.5 mA (max)
f
MCLK
= 11.2896MHz, f
S
= 44.1kHz,
Analog Supply Current (MP3 Mode) Stereo DAC On, OSR
DAC
= 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)
f
MCLK
= 12.288MHz, f
S
= 48kHz,
AI
DD
Analog Supply Current (FM Record
Stereo ADC On, OSR
ADC
= 128, 9.8 12 mA (max)
Mode)
PLL Off, Stereo Analog Inputs On
f
MCLK
= 11.2896MHz, f
S
= 44.1kHz,
Analog Supply Current (CODEC
Mono ADC On, Stereo DAC On, 13 15 mA (max)
Mode)
OSR = 128, PLL Off, MIC On
f
MCLK
= 13MHz,
PLLI
DD
PLL Total Active Current 2.9 5.5 mA (max)
f
PLLOUT
= 12MHz, PLL On only
HPI
DD
Headphone Quiescent Current Stereo HP On only 3.5 mA
LSI
DD
Loudspeaker Quiescent Current LS On only 2.9 mA
MICI
DD
Microphone Quiescent Current mono MIC + MIC Bias On 0.5 mA
ADCI
DD
ADC Total Active Current f
S
= 48kHz, Stereo 9 mA
DACI
DD
DAC Total Active Current f
S
= 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 T
A
= +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.
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