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LMV1088

LMV1088首页预览图
型号: LMV1088
PDF文件:
  • LMV1088 PDF文件
  • LMV1088 PDF在线浏览
功能描述: Dual Input, Far Field Noise Suppression Microphone Amplifier with Automatic Calibration Ability
PDF文件大小: 1345.01 Kbytes
PDF页数: 共26页
制造商: NSC[National Semiconductor]
制造商LOGO: NSC[National Semiconductor] LOGO
制造商网址: http://www.national.com
捡单宝LMV1088
PDF页面索引
120%
I
DDCP
Supply Current during Calibration and
Programming
Calibrating or Programming EEPROM
28 50 mA (max)
I
DD
Supply Current
V
IN
= 25mV
P-P
both inputs, Noise canceling
mode
1 1.5 mA (max)
Digital Interface Characteristics (Notes 4, 13)
Unless otherwise specified, all limits guaranteed for T
J
= 25°C, I
2
CV
DD
within the Operating Rating (Note 13)
Symbol Parameter Conditions
LMV1088
Units
(Limits)
Typical
(Note 9)
Limits
(Note 10)
V
IH
Logic High Input Level SCL, SDA, ADR, CAL, PE pins
0.6xI
2
CV
DD
V (min)
V
IL
Logic Low Input Level SCL, SDA, ADR, CAL, PE pins
0.4xI
2
CV
DD
V (max)
ts
CAL
CAL Setup Time 2 ms
th
CAL
CAL Hold time until calibration is
finished
770 ms (min)
ts
PEC
PE Setup Time 2 ms
th
PEC
PE Hold until calibration is finished 770 ms (min)
Note 4: 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.
Note 5: The Electrical Characteristics tables list guaranteed 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 guaranteed.
Note 6: The maximum power dissipation must be de-rated at elevated temperatures and is dictated by T
JMAX
, θ
JC
, 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 the Absolute Maximum Ratings, whichever is lower. For the LMV1088, T
JMAX
=
150°C and the typical θ
JA
for this microSMD package is 70°C/W and for the LLP package θ
JA
is 64°C/W Refer to the Thermal Considerations section for more
information.
Note 7: Human body model, applicable std. JESD22-A114C.
Note 8: Machine model, applicable std. JESD22-A115-A.
Note 9: Typical values represent most likely parametric norms at T
A
= +25°C, and at the Recommended Operation Conditions at the time of product
characterization and are not guaranteed.
Note 10: Datasheet min/max specification limits are guaranteed by test, or statistical analysis.
Note 11: In Pass Through mode, only one microphone input is active. See also I
2
C Compatible Interface for more information how to configure the LMV1088.
Note 12: In Noise Canceling Mode there is 2.5dB additional gain before calibration when compared to the other operating modes to compensate for the gain
reduction that is caused by the noise canceling effect.
Note 13: The voltage at I
2
CV
DD
must not exceed the voltage on V
DD
.
www.national.com 6
LMV1088
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