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LM48100Q-Q1 bảng dữ liệu(PDF) 1 Page - Texas Instruments

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Giải thích chi tiết về linh kiện  Audio Power Amplifier
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LM48100Q-Q1 bảng dữ liệu(HTML) 1 Page - Texas Instruments

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VOLUME CONTROL
-80 dB TO +18 dB
MIXER/MULITPLEXER
I
2
C CONTROL
BIAS
FAULT
DETECTION
VDD
PVDD
+1.8V to +5.5V
I
2
CVDD
SDA
SCL
ADR
IN2
IN1
BIAS
GND
PGND
FAULT
OUTA
OUTB
VDD
+6 dB
0.1 PF
0.1 PF
0.1 PF
0.1 PF
2.2 PF
1.5 k:
1 PF
VOLUME CONTROL
-80 dB TO +18 dB
3.0V to 5.5V
CB
CB
CIN1
CIN2
CBIAS
CB
RPU
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LM48100Q-Q1
SNAS470E – OCTOBER 2008 – REVISED NOVEMBER 2015
LM48100Q-Q1 Boomer™ Mono, 1.3-W Audio Power Amplifier With Output Fault Detection
and Volume Control
Operating from a single 5-V supply, the LM48100Q-
1 Features
Q1 delivers 1.3 W of continuous output power to an 8
1
Output Fault Detection
Ω load with < 1% THD+N. Flexible power supply
I2C Volume and Mode Control
requirements allow operation from 3 V to 5.5 V. High
power supply rejection ratio (PSRR), 74 dB at 1 kHz,
Input Mixer and Multiplexer
allows the device to operate in noisy environments
High PSRR
without additional power supply conditioning.
Individual 32-Step Volume Control
The LM48100Q-Q1 features dual audio inputs that
Short Circuit and Thermal Protection
can be mixed/multiplexed to the device output. Each
Advanced Click-and-Pop Suppression
input path has its own independent, 32-step volume
control. The mixer, volume control and device mode
Low-Power Shutdown Mode
select are controlled through an I2C compatible
Available in 14-Pin HTSSOP Package
interface. An open drain FAULT output indicates
Key Specifications:
when a fault has occurred. Comprehensive output
Output Power at VDD = 5 V, RL = 8 Ω,
short circuit and thermal overload protection prevent
the device from being damaged during a fault
THD+N
≤ 1% 1.3 W (Typical)
condition.
Quiescent Power Supply Current at 5 V,
6 mA (Typical)
A low power shutdown mode reduces supply current
consumption to 0.01 µA. Superior click and pop
PSRR at 1 kHz 74 dB (Typical)
suppression eliminates audible transients on power-
Shutdown current 0.01
μA (Typical)
up/down and during shutdown. The LM48100Q-Q1 is
available in an 14-pin HTSSOP PowerPAD™ IC
2 Applications
package.
Automotive Instrument Clusters
Device Information(1)
Hands-Free Car Kits
PART NUMBER
PACKAGE
BODY SIZE (NOM)
Medical
LM48100Q-Q1
HTSSOP (14)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
3 Description
the end of the datasheet.
The LM48100Q-Q1 is a single supply, mono, bridge-
tied load amplifier with I2C volume control, ideal for
automotive applications. A comprehensive output
fault detection system senses the load conditions,
protecting the device during short circuit events, as
well as detecting open circuit conditions.
Typical Audio Amplifier Application Circuit
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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