參數(shù)資料
型號(hào)： LM4831VF
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 消費(fèi)家電
英文描述： Multimedia Computer Audio Chip
中文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝： TQFP-44
文件頁(yè)數(shù)： 2/12頁(yè)
文件大小： 575K
代理商： LM4831VF
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
Input Voltage
Power Dissipation (Note 3)
ESD Susceptibility (Note 4)
ESD Susceptibility (Note 5)
Junction Temperature
Soldering Information
Small Outline Package
6.0V
65C to 150C
0.3V to V
DD
+0.3V
Internally limited
2500V
200V
150C
Vapor Phase (60 sec.)
Infrared (15 sec.)
See AN-450 “Surface Mounting and their Effects on
Product Reliability” for other methods of soldering
surface mount devices.
Thermal Resistance
θ
JC
(typ)
θ
JA
(typ)
215C
220C
15C/W
62C/W
Operating Ratings
Temperature Range
Supply Voltage
40C to 85C
2.7
≤
V
DD
≤
5.5V
Electrical Characteristics
(Notes 1, 2) The following specifications apply for V
= 5V, R
= 8
and f = 1 kHz, unless otherwise specified.
Distortion
measurements represent the full audio chain from Input A of each channel to their respective output.
Limits apply for
T
A
= 25C.
Symbol
Parameter
Conditions
LM4831
Units
(Limits)
Typical
(Note
6)
Limit
(Note
7)
General Characteristics For Entire IC
V
DD
Supply Voltage
2.7
5.5
50
V (min)
V (max)
mA (max)
mA
mA
μA (max)
V (min)
V (max)
I
DD
Quiescent Power Supply
Current
Bridged Mode, I
O
= 0 mA
Single-Ended Mode, I
O
= 0 mA
Docking Station Mode, I
O
= 0 mA
V
PIN-43
= 5V, V
PIN-41
= V
PIN-42
= 0V
V
IN
= 0V, V
Pin-43
= 0V
16
10.5
7
2
2.45
I
SD
V
DD/2
Shutdown Current
Half Supply Bypass Voltage
50
2.4
2.6
Power Amplifiers
R
L
= 8
,THD = 1%
R
L
= 4
, THD = 1%
R
L
= 8
, THD = 1%
R
L
= 4
, THD = 1%
Bridged Mode, P
O
= 1W, R
L
= 8
Single-Ended Mode, P
O
= 225mW,
R
L
= 8
V
IN
= 0V
A-Weighted Filter, V
IN
= 0V,
R
L
= 8
Bridged Output
Single-Ended Output
f = 1kHz, C
B
= 0.5μF, R
L
= 8
Bridged Output
Single-Ended Output
f = 1kHz, P
O
= 1W, R
L
= 8
Right to Left
Left to Right
V
PIN-41
= 4.0V, L_PA+OUT =
R_PA+OUT = V
DD
or GND
P
O
Output Power - Bridged
Mode
1.1
1.5
300
550
0.5
0.15
1
W (min)
W
mW
mW
% (Max)
%
Output Power -
Single-Ended Mode
THD
Total Harmonic Distortion
2.0
V
OS
E
Noise
Output Offset Voltage
Input Referred Noise
5
50
mV (Max)
45
35
100
100
μV (max)
μV (max)
PSRR
Power Supply Rejection
Ratio
47
45
dB
dB
X
TALK
Channel to Channel
Crosstalk
82
73
80
dB
dB
I
TS
TRI-STATE
Current-Single
Ended Mode
100
μA (max)
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