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LM4947 Datasheet(PDF) 5 Page - Texas Instruments

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Part No. LM4947
Description  Mono Class D and Stereo Audio Sub-System
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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LM4947 Datasheet(HTML) 5 Page - Texas Instruments

 
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LM4947, LM4947TLEVAL
www.ti.com
SNAS349D – JUNE 2006 – REVISED MAY 2013
ABSOLUTE MAXIMUM RATINGS
(1) (2)
Supply Voltage
6.0V
Storage Temperature
−65°C to +150°C
Input Voltage
−0.3 to VDD +0.3
ESD Susceptibility(3)
2.0kV
ESD Machine model(4)
200V
Junction Temperature (TJ)
150°C
Solder Information
Vapor Phase (60 sec.)
215°C
Infrared (15 sec.)
220°C
Thermal Resistance
θJA (typ) - YZR0025BBA
65°C/W
(1)
Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured
specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.
Some performance characteristics may degrade when the device is not operated under the listed test conditions.
(2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3)
Human body model, 100pF discharged through a 1.5k
Ω resistor.
(4)
Machine Model ESD test is covered by specification EIAJ IC-121-1981. A 200pF cap is charged to the specified voltage, then
discharged directly into the IC with no external series resistor (resistance of discharge path must be under 50
Ω).
OPERATING RATINGS
Temperature Range
−40°C to 85°C
Supply Voltage (VDD)
2.7V
≤ VDD ≤ 5.5V
Supply Voltage (I2C)
2.2V
≤ VDD ≤ 5.5V
Supply Voltage (Loudspeaker VDD)
2.7V
≤ VDD ≤ 5.5V
ELECTRICAL CHARACTERISTICS 3.3V
(1) (2)
The following specifications apply for VDD = 3.3V, TA = 25°C, and all gains are set for 0dB unless otherwise specified.
Symbol
Parameter
Conditions
LM4947
Units
(Limits)
Typical(3)
Limits(4)
Output Modes 2, 4, 6
VIN = 0V; No load,
4.5
6.5
mA (max)
OCL = 0 (Table 2)
IDDQ
Quiescent Supply Current
Output Modes 1, 3, 5, 7
VIN = 0V; No load, BTL,
6.5
8
mA (max)
OCL = 0 (Table 2)
ISD
Shutdown Current
Output Mode 0
0.1
1
µA (max)
VIN = 0V, Mode 7, Mono
2
15
mV (max)
VOS
Output Offset Voltage
VIN = 0V, Mode 7, Headphones
2
15
mV (max)
MONO OUT; RL = 8Ω
500
400
mW (min)
THD+N = 1%; f = 1kHz, BTL, Mode 1
PO
Output Power
ROUT and LOUT; RL = 32Ω
37
33
mW (min)
THD+N = 1%; f = 1kHz, SE, Mode 4
MONOOUT
f = 1kHz, POUT = 250mW;
0.03
%
RL = 8Ω, BTL, Mode 1
THD+N
Total Harmonic Distortion Plus Noise
ROUT and LOUT
f = 1kHz, POUT = 12mW;
0.02
%
RL = 32Ω, SE, Mode 4
(1)
Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured
specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed.
Some performance characteristics may degrade when the device is not operated under the listed test conditions.
(2)
All voltages are measured with respect to the ground pin, unless otherwise specified.
(3)
Typical specifications are specified at +25°C and represent the most likely parametric norm.
(4)
Tested limits are specified to AOQL (Average Outgoing Quality Level).
Copyright © 2006–2013, Texas Instruments Incorporated
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Product Folder Links: LM4947 LM4947TLEVAL


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