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LM49251 bảng dữ liệu(PDF) 9 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  Stereo Audio Subsystem with Class G Headphone Amplifier and Class D Speaker Amplifier with Speaker Protection
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LM49251
www.ti.com
SNAS498A – FEBRUARY 2011 – REVISED APRIL 2013
I
2C Interface Characteristics V
DD = 5V, 1.8V ≤ I
2CV
DD ≤ 2.2V
(1) (2)
The following specifications apply for AV = 0dB, RL = 8Ω, f = 1kHz, unless otherwise specified. Limits apply for TA = 25°C.
LM49251
Units
Parameter
Test Conditions
(Limits)
Typ(3)
Limit(4)
t1
SCL Period
2.5
μs (min)
t2
SDA Set-up Time
250
ns (min)
t3
SDA Stable Time
0
ns (min)
t4
Start Condition Time
250
ns (min)
t5
Stop Condition Time
250
ns (min)
t6
SDA Hold Time
250
ns (min)
VIH
Digital Input High Voltage
0.7*I2CVDD
V (min)
VIL
Digital Input Low Voltage
0.3*I2CVDD
V (max)
(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 specified 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 ensured by test or statistical analysis.
Copyright © 2011–2013, Texas Instruments Incorporated
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