參數(shù)資料
型號: LM4856ITL
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 音頻/視頻放大
英文描述: Integrated Audio Amplifier System
中文描述: 1.1 W, 3 CHANNEL, AUDIO AMPLIFIER, PBGA18
封裝: MICRO SMD-18
文件頁數(shù): 3/23頁
文件大小: 1321K
代理商: LM4856ITL
Absolute Maximum Ratings
(Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage
Storage Temperature
ESD Susceptibility (Note 4)
ESD Machine model (Note 7)
Junction Temperature (T
J
)
Solder Information (Note 1)
Vapor Phase (60 sec.)
Infrared (15 sec.)
6.0V
65C to +150C
2.0kV
200V
150C
215C
220C
Thermal Resistance
θ
JA
(typ) - LQA24A
θ
JC
(typ) - LQA24A
θ
JA
(typ) - TLA18AAA
θ
JC
(typ) - TLA18AAA
42C/W
3.0C/W
48C/W (Note 9)
23C/W (Note 9)
Operating Ratings
(Note 3)
Temperature Range
Supply Voltage V
DD
40C to 85C
2.6V
V
DD
5.0V
Note 1:
See AN-450 "Surface Mounting and their effects on Product Reli-
ability" for other methods of soldering surface mount devices.
Electrical Characteristics
(Notes 3, 8)
The following specifications apply for V
DD
= 5.0V, T
A
= 25C unless otherwise specified.
Symbol
Parameter
Conditions
LM4856
Units
(Limits)
Typical
(Note 5)
Limits
(Notes 6,
11)
I
DD
Supply Current
Output modes 1, 2, 3, 4, 5, 6, 7
V
IN
= 0V; No loads
Output modes 1, 2, 3, 4, 5, 6, 7
V
IN
= 0V; Loaded (
Figure 1
)
Output mode 0
V
IN
= 0V
SPKR
OUT
; R
L
= 4
THD+N = 1%; f = 1kHz, LM4856LQ
SPKR
OUT
; R
L
= 8
THD+N = 1%; f = 1kHz
R
OUT
and L
OUT
; R
L
= 32
THD+N = 0.5%; f = 1kHz
SPKR
OUT
f = 20Hz to 20kHz
P
OUT
= 400mW; R
L
= 8
R
OUT
and L
OUT
f = 20Hz to 20kHz
P
OUT
= 15mW; R
L
= 32
A-weighted (Note 10)
V
RIPPLE
= 200mV
PP
; f = 217Hz,
C
B
= 1.0μF
All audio inputs terminated into 50
;
Output referred Gain (BTL) = 12dB
Output Mode 1, 3, 5, 7
V
RIPPLE
= 200mV
PP
; f = 217Hz
C
B
= 1.0μF
All audio inputs terminated into 50
;
Output referred Maximum gain setting
Output Mode 2, 3
Output Mode 4, 5
Output Mode 6, 7
7.5
11
mA (max)
8.5
12
mA (max)
I
SD
V
OS
Shutdown Current
Output Offset Voltage
0.1
5.0
2.0
40
μA (max)
mV (max)
P
O
Output Power
1.5
W
1.1
0.8
W (min)
60
45
mW (min)
THD+N
Total Harmonic Distortion Plus
Noise
0.5
%
0.5
%
N
OUT
Output Noise
29
58
μV
PSRR
Power Supply Rejection Ratio
SPKR
OUT
54
dB (min)
Power Supply Rejection Ratio
R
OUT
and L
OUT
68
60
56
59
54
51
dB (min)
dB (min)
dB (min)
V (min)
V (max)
V
IH
Logic High Input Voltage
0.7 x V
DD
V
DD
L
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