LM4855ITL National Semiconductor, LM4855ITL Datasheet - Page 5

• Manufacturer Part Number: LM4855ITL
• Manufacturer: National Semiconductor

Specifications of LM4855ITL

• Operational Class: Class-AB
• Audio Amplifier Function: Headphone/Speaker
• Total Harmonic Distortion: 0.5@8Ohm@400mW%
• Single Supply Voltage (typ): 3V
• Dual Supply Voltage (typ): Not RequiredV
• Supply Current (max): 12@5VmA
• Power Supply Requirement: Single
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 62dB
• Single Supply Voltage (min): 2.6V
• Single Supply Voltage (max): 5V
• 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: 18
• Package Type: uSMD
• Lead Free Status / Rohs Status: Not Compliant

I
I
V
P
THD+N
N
PSRR
V
V
DD
SD
Symbol
OS
O
OUT
IH
IL
Electrical Characteristics
The following specifications apply for V
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
Total Harmonic Distortion Plus
Noise
Output Noise
Power Supply Rejection Ratio
SPKR
Power Supply Rejection Ratio
R
Logic High Input Voltage
Logic Low Input Voltage
OUT
and L
OUT
OUT
Parameter
DD
= 3.0V, T
(Notes 2, 8)
Output mode 1
V
Output mode 1
V
Output modes 2, 3, 4, 5, 6, 7
V
Output modes 2, 3, 4, 5, 6, 7
V
Output mode 0
V
SPKR
THD+N = 1%; f = 1kHz, LM4855LQ
SPKR
THD+N = 1%; f = 1kHz
R
THD+N = 0.5%; f = 1kHz
SPKR
f = 20Hz to 20kHZ
P
R
f = 20Hz to 20kHZ
P
A-weighted (Note 10)
V
1.0µF
All audio inputs terminated into 50Ω;
Output referred Gain (BTL) = 12dB
Output Mode 1, 3, 5, 7
V
1.0µF
All audio inputs terminated into 50Ω;
Output referred Maximum gain setting
Output Mode 2, 3
Output Mode 4, 5
Output Mode 6, 7
IN
IN
IN
IN
IN
OUT
OUT
RIPPLE
RIPPLE
OUT
OUT
= 0V; No loads
= 0V; Loaded (Fig.1)
= 0V; No loads
= 0V; Loaded (Fig. 1)
= 0V
= 250mW; R
= 20mW; R
OUT
OUT
and L
OUT
and L
A
= 25˚C unless otherwise specified.
= 200mV
= 200mV
; R
; R
OUT
OUT
L
L
= 4Ω
= 8Ω
Conditions
; R
L
PP
PP
5
L
L
= 32Ω
; f = 217Hz, C
; f = 217Hz, C
= 32Ω
= 8Ω
B
B
=
=
(Note 5)
Typical
430
340
4.5
5.0
6.5
0.1
5.0
0.5
0.5
25
29
58
63
58
55
7
LM4855
(Note 6)
Limits
GND
V
300
2.0
1.4
0.4
10
11
40
20
55
60
55
52
7
8
DD
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mA (max)
mA (max)
mA (max)
mA (max)
mV (max)
mW (min)
mW (min)
µA (max)
dB (min)
dB (min)
dB (min)
dB (min)
(Limits)
V (max)
V (max)
V (min)
V (min)
Units
mW
µV
%
%