LM4920TL National Semiconductor, LM4920TL Datasheet - Page 4

• Manufacturer Part Number: LM4920TL
• Manufacturer: National Semiconductor

Specifications of LM4920TL

• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 2-Channel Stereo
• Output Power (typ): 0.08x2@16OhmW
• Audio Amplifier Function: Headphone
• Total Harmonic Distortion: 0.04@16Ohm@60mW%
• Single Supply Voltage (typ): 3V
• Dual Supply Voltage (typ): Not RequiredV
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 70dB
• Single Supply Voltage (min): 1.6V
• Single Supply Voltage (max): 4.2V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 14
• Lead Free Status / Rohs Status: Not Compliant

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I
I
V
A
∆A
R
P
THD+N
PSRR
SNR
V
V
X
Z
DD
SD
OUT
OS
V
IN
O
IH
IL
TALK
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Electrical Characteristics V
The following specifications apply for V
Symbol
V
Supply Voltage
Storage Temperature
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Quiescent Power Supply Current
Full Power Mode
Shutdown Current
Output Offset Voltage
Voltage Gain
Gain Match
Input Resistance
Output Power
Total Harmonic Distortion +
Noise
Power Supply Rejection Ratio
Full Power Mode
Signal-to-Noise Ratio
Shutdown Input Voltage High
Shutdown Input Voltage Low
Crosstalk
Output Impedance
Parameter
-0.3V to V
DD
Internally Limited
−65˚C to +150˚C
= 3V and 16Ω load unless otherwise specified. Limits apply to T
DD
(Note 2)
V
both channels enabled
V
one channel enabled
V
R
THD+N = 1% (max); f = 1kHz,
R
THD+N = 1% (max); f = 1kHz,
R
THD+N = 1% (max); f = 1kHz,
R
THD+N = 1% (max); f = 1kHz,
R
P
single channel
P
single channel
V
R
(A-weighted)
f = 1kHz, BW = 20Hz to 22kHz
V
V
R
f = 1kHz
V
Input Terminated
Input not terminated
DD
IN
IN
SD_LC
O
O
RIPPLE
DD
DD
SD-LC
L
L
L
L
L
L
L
f = 217Hz
f = 1kHz
f = 20kHz
= 3V
= 32Ω, V
= 16Ω, one channel
= 32Ω, one channel
= 16Ω, (two channels in phase)
= 32Ω, (two channels in phase)
= 32Ω, P
= 16Ω, P
= 60mW, f = 1kHz, R
= 50mW, f = 1kHz, R
= 0V, inputs terminated
= 0V, inputs terminated
+ 0.3V
2000V
= 1.8V to 4.2V
= 1.8V to 4.2V
200V
4.5V
= V
= V
= 200mVp-p, Input Referred
SD-RC
SD_RC
(Note 1)
IN
OUT
O
Conditions
= 1.6mW,
= 0V
4
= 20mW,
= GND
= GND
Operating Ratings
Junction Temperature
Thermal Resistance
Temperature Range
Supply Voltage (V
θ
T
JA
MIN
L
L
(typ) TLE1411A (Note 11)
= 16Ω
= 32Ω
≤ T
A
≤ T
MAX
DD
)
(Note 6)
–1.5
0.04
0.03
Typ
100
0.1
0.7
20
80
65
43
50
70
65
50
60
50
∞
7
5
1
LM4920
(Notes 7, 8)
Limit
0.45
1.8
1.2
−40˚C ≤ T
A
10
15
25
38
45
30
1.6V ≤ V
5
= 25˚C.
DD
A
mA (max)
mV (max)
mW (min)
mW (min)
µA (max)
kΩ (max)
86˚C/W
kΩ (min)
(Limits)
V (max)
≤ 85˚C
V (min)
≤ 4.2V
150˚C
Units
mW
mW
mA
V/V
dB
dB
dB
kΩ
%
%