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MXF10A PDF даташит

Спецификация MXF10A изготовлена ​​​​«National Semiconductor» и имеет функцию, называемую «2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level».

Детали детали

Номер произв MXF10A
Описание 2 Watt Audio Power Amplifier with Selectable Shutdown Logic Level
Производители National Semiconductor
логотип National Semiconductor логотип 

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MXF10A Даташит, Описание, Даташиты
March 2003
LM4914
1W Monaural, 85mW Stereo Headphone Audio Amplifier
General Description
The unity-gain stable LM4914 is both a mono differential
output (for bridge-tied loads, or BTL) audio power amplifier
and a single-ended (SE) stereo headphone amplifier. Oper-
ating on a single 5V supply, the mono BTL mode delivers 1W
into an 8load. In SE stereo mode, the amplifier delivers
85mW to 32loads. The LM4914 features circuitry that
suppresses output transients ("clicks and pops").
The LM4914 is designed for notebook and other handheld
portable applications. It delivers high quality output power
from a surface-mount package and requires few external
components. The LM4914 is pin and functionally compatible
with the TPA0253.
Other features include an active-low micro-power shutdown
mode and thermal shutdown protection.
The LM4914 is available in a space efficient 10-lead
exposed-DAP TSSOP package.
Key Specifications
j BTL output power (RL = 8)
VDD = at 3.0V, THD = 0.1%
VDD = at 5.0V, THD = 0.1%
j SE output power (RL = 32)
VDD = at 3.0V, THD = 0.1%
VDD = at 5.0V, THD = 0.1%
330mW (typ)
1W (typ)
30mW (typ)
85mW (typ)
j Micro-power shutdown supply current
j PSRR (f = 1kHz)
VDD = at 3.0V, BTL Mode
VDD = at 5.0V, BTL Mode
0.03µA (typ)
52dB (typ)
52dB (typ)
Features
n Advanced "click and pop" suppression circuitry
n Stereo headphone amplifier mode
n Low current micro-power shutdown mode
n Thermal shutdown protection circuitry
n 2.5V to 5.5V operation
n Unity-gain stable
n Gain set with external resistors
n Space-saving exposed-DAP TSSOP package
Applications
n PDAs
n Cellular phones
n Handheld portable electronic devices
Connection Diagram
Top View
Order Number LM4914MH
See NS package Number MXF10A
200634A0
Boomer® is a registered trademark of National Semiconductor Corporation.
© 2003 National Semiconductor Corporation DS200634
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MXF10A Даташит, Описание, Даташиты
Typical Application
FIGURE 1. Typical Audio Amplifier Application Circuit
200634C3
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MXF10A Даташит, Описание, Даташиты
Absolute Maximum Ratings (Note 3)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 4)
ESD Susceptibility (Note 5)
ESD Susceptibility (Note 6)
Junction Temperature
Solder Information
Small Outline Package
Vapor Phase (60sec)
6.0V
−65˚C to +150˚C
−0.3V to VDD +0.3V
Internally Limited
2000V
200V
150˚C
215˚C
Infrared (15sec)
See AN-450 "Surface Mounting
and their Effects on Product
Reliability" for other methods of
soldering surface-mount devices.
Thermal Resistance
θJA (typ) - MXF10A
Operating Ratings
Temperature Range
TMIN TA TMAX
Supply Voltage
220˚C
46˚C/W
−40˚C TA 85˚C
2.5V VDD 5.5V
Electrical Characteristics for Entire Amplifier (VDD = 5V) (Note 3)
The following specifications apply for the circuit shown in Figure 1, unless otherwise specified. Limits apply for TA = 25˚C.
Symbol
Parameter
Conditions
VDD Supply Voltage
IDD
ISD
VOS
PSRR
HP-SVIH
HP-SVIL
SDVIH
SDVIL
Quiescent Power Supply Current VIN = 0V, IO = 0A, No Load
Shutdown Quiescent Power Supply VSHUTDOWN = GND
Current
Output Offset Voltage
Power Supply Rejection Ratio
HP-SENSE Logic-High Threshold
VDD = 5V, CBYPASS = 0.47µF,
Vripple = 200mVp-p 1kHz sine wave
RL = 8
Voltage
HP-SENSE Logic-Low Threshold
Voltage
Shutdown Logic High Threshold
Shutdown Logic LowThreshold
LM4914
Typical
Limit
(Note 8) (Notes 9, 10)
2.5
5.5
4 6.5
0.03
5
Units
(Limits)
V (min)
V (max)
mA (max)
µA (max)
7 30 mV (max)
52 BTL
60 SE
dB
4.5 V (min)
2.75
V (max)
2.0 V (min)
0.8 V (max)
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Номер в каталогеОписаниеПроизводители
MXF10A1W Monaural / 85mW Stereo Headphone Audio AmplifierNational Semiconductor
National Semiconductor
MXF10A2 Watt Audio Power Amplifier with Selectable Shutdown Logic LevelNational Semiconductor
National Semiconductor

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