Datasheet
LM49370
SNAS356D –FEBRUARY 2007–REVISED MARCH 2012
www.ti.com
Absolute Maximum Ratings
(1)(2)
Analog Supply Voltage
(A_V
DD
& LS_V
DD
) 6.0V
Digital Supply Voltage
(BB_V
DD
& D_V
DD
& PLL_V
DD
) 6.0V
Storage Temperature −65°C to +150°C
Power Dissipation
(3)
Internally Limited
ESD Susceptibility Human Body Model
(4)
2500V
Machine Model
(5)
200V
Junction Temperature 150°C
Thermal Resistance
θ
JA
– YPG49 (soldered down to PCB with 2in
2
1oz. copper plane) 60°C/W
Soldering Information
(1) All voltages are measured with respect to the relevant V
SS
pin unless otherwise specified. All grounds should be coupled as close as
possible to the device.
(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional but do not ensure specific performance limits. Characteristics state DC and AC electrical specifications
under particular test conditions which ensure specific performance limits. This assumes that the device is within the Operating Ratings.
Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication of device
performance.
(3) The maximum power dissipation must be de-rated at elevated temperatures and is dictated by T
JMAX
, θ
JA
, and the ambient temperature,
T
A
. The maximum allowable power dissipation is P
DMAX
= (T
JMAX
– T
A
) / θ
JA
or the number given in Absolute Maximum Ratings,
whichever is lower.
(4) Human body model: 100pF discharged through a 1.5kΩ resistor.
(5) Machine model: 220pF – 240pF discharged through all pins.
Operating Ratings
Temperature Range −40°C to +85°C
Supply Voltage D_V
DD
/PLL_V
DD
2.5V to 4.5V
BB_V
DD
1.8V to 4.5V
LS_V
DD
= A_V
DD
(1)
2.5V to 5.5V
(1) LS_V
DD
must be equal to A_V
DD
due to intend ESD diode structure. For proper operation, LS_V
DD
and A_V
DD
need to be the highest
voltage than BB_V
DD
, D_V
DD
, and PLL_V
DD
and must be applied first.
Electrical Characteristics
(1)(2)
Unless otherwise stated PLL_V
DD
= 3.3V, D_V
DD
= 3.3V, BB_V
DD
= 1.8V, A_V
DD
= 3.3V, LS_V
DD
= 3.3V. The following
specifications apply for the circuit shown in Figure 2 unless otherwise stated. Limits apply for 25°C.
LM49370
Symbol Parameter Conditions Units
Limit
(4)
Typical
(3)
(5)
POWER
DI
SD
Digital Shutdown Current
(6)
Chip Mode '00', f
MCLK
= 13MHz 0.7 2.2 µA (max)
DI
ST
Digital Standby Current Chip Mode '01', f
MCLK
= 13MHz 0.9 1.8 mA(max)
AI
SD
Analog Shutdown Current Chip Mode '00' 0.1 1.2 µA(max)
AI
ST
Analog Standby Current Chip Mode '01' 0.1 1.2 µA (max)
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional but do not ensure specific performance limits. Characteristics state DC and AC electrical specifications
under particular test conditions which ensure specific performance limits. This assumes that the device is within the Operating Ratings.
Specifications are not ensured for parameters where no limit is given, however, the typical value is a good indication of device
performance.
(2) All voltages are measured with respect to the relevant V
SS
pin unless otherwise specified. All grounds should be coupled as close as
possible to the device.
(3) Typical values are measured at 25°C and represent the parametric norm.
(4) Limits are specified to TI's AOQL (Average Outgoing Quality Level).
(5) Datasheet min/max specification limits are specified by design, test, or statistical analysis.
(6) Digital shutdown current is measured with system clock set for PLL output while the PLL is disabled.
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