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LM49153 Arkusz danych(PDF) 7 Page - Texas Instruments

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Numer części LM49153
Szczegółowy opis  Mono Audio Subsystem with Class G Headphone Amplifier, Class D Speaker Amplifier, Noise Gate and Speaker Protection
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Producent  TI1 [Texas Instruments]
Strona internetowa  http://www.ti.com
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LM49153
www.ti.com
SNAS496C – JANUARY 2011 – REVISED MAY 2013
Electrical Characteristics VDD = 3.6V, HPVDD = 1.8V
(1)(2) (continued)
The following specifications apply for VDD = LSVDD, AV = 0dB, RL = 15μH+8Ω+15µH (Loudspeaker), RL = 32Ω (Headphone),
CSET = 0.1µF, f = 1kHz, ALC off, unless otherwise specified. Limits apply for TA = 25°C.
(3).
LM49153
Units
Symbol
Parameter
Conditions
(Limits)
Typical(4)
Limits(5)
A-weighted, Inputs AC GND
LS Mode, mono input
46
µV
εOS
Output Noise
LS Mode, stereo input
52
µV
HP Mode, mono input
11
µV
HP Mode, stereo input
11
µV
LS Mode, PO = 680mW, A-weighted, Mono
94
dB
SNR
Signal to Noise Ratio
HP Mode, PO = 25mW, A-weighted
98
dB
I2C = 1
0.1
ms
tA
Noise Gate Attack Time
I2C = 0
0.9
ms
I2C = 0
1.2
s
tR
Noise Gate Release Time
I2C = 1
2.1
s
Low 010
7.3
VP-P
CC
Clip Control
Medium 011
7.8
VP-P
High 100
8.1
VP-P
LS Mode 1, THD+N
≤ 1%, Voltage Level(6)
001
4
VP-P
010
4.8
VP-P
PLIMIT
Output Power Limit
011
5.6
VP-P
100
6.4
VP-P
101
7.2
VP-P
110
8.0
VP-P
tA
ALC Attack Time
0.5
ms
tR
ALC Release Time
200
ms
(6)
The LM49153 ALC limits the output power to which ever is lower, the supply voltage or output power limit.
I
2C Interface Characteristics V
DD = 3.6V
(1) (2)
The following specifications apply for AV = 0dB, RL = 8Ω, f = 1kHz, unless otherwise specified. Limits apply for TA = 25°C.
LM49153
Units
Symbol
Parameter
Conditions
Typical
Limits
(Limits)
(3)
(4)
t1
SCL Period
2.5
µs (min)
t2
SDA Setup 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)
VIH
Input High Voltage
1.2
V (min)
VIL
Input Low Voltage
0.6
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 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 specified.
(4)
Datasheet min/max specification limits are specified by test or statistical analysis.
Copyright © 2011–2013, Texas Instruments Incorporated
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