參數(shù)資料
型號(hào): LM4543VH
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類(lèi): 消費(fèi)家電
英文描述: AC ’97 Codec with National 3D Sound
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: 7 X 7 MM, 1.40 MM HEIGHT, TQFP-48
文件頁(yè)數(shù): 2/16頁(yè)
文件大?。?/td> 304K
代理商: LM4543VH
Absolute Maximum Ratings
(Note 3)
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
ESD Susceptibility (Note 5)
pins 27, 28
pin 3
ESD Susceptibility (Note 6)
pin 3
Junction Temperature
Soldering Information
6.0V
65C to +150C
0.3V to V
DD
+0.3V
2500V
1500V
750V
200V
100V
150C
TQFP Package
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.
θ
JA
(typ)— VBH48A
215C
220C
74C/W
Operating Ratings
Temperature Range
T
MIN
T
A
T
MAX
Analog Supply Range
Digital Supply Range
40C
T
A
85C
4.2V
AV
DD
5.5V
3.0V
DV
DD
5.5V
Electrical Characteristics
(Notes 1, 3)
The following specifications apply for AV
= 5V, DV
DD
= 5V unless otherwise noted. Limits apply for T
A
= 25C. The reference
for 0dB is 1Vrms unless otherwise specified.
Symbol
Parameter
Conditions
LM4543
Units
(Limits)
Typical
(Note 7)
Limit
(Note 8)
4.2
5.5
3.0
5.5
AV
DD
Analog Supply Range
V (min)
V (max)
V (min)
V (max)
mA
DV
DD
Digital Supply Range
I
DDD
Digital Quiescent Power Supply
Current
D
VDD
= 5V
38
D
VDD
= 3.3V
20
55
mA
mA
I
DDA
Analog Quiescent Power Supply
Current
Shutdown Current
Reference Voltage
Power Supply Rejection Ratio
Analog Loopthru Mode
I
SD
V
REF
PSRR
1.5
2.23
40
mA
V
dB
Dynamic Range (Note 2)
CD Input to Line Output, -60dB Input
THD+N, A-Weighted
V
O
= -3dB, f = 1kHz, R
L
= 10k
95
90
dB (min)
THD
Analog Input Section
V
IN
Total Harmonic Distortion
0.01
0.02
% (max)
Line Input Voltage
Mic Input with 20dB Gain
Mic Input with 0dB Gain
Crosstalk
Input Impedance
Input Capacitance
Interchannel Gain Mismatch
1
Vrms
Vrms
Vrms
dB (max)
k
(min)
pF
dB
0.1
1
-85
40
15
0.04
Xtalk
Z
IN
C
IN
CD Left to Right
-70
10
CD Left to Right
Record Gain Amplifier - A/D
A
S
Mixer Section
A
S
A
M
Analog to Digital Converters
Resolution
Step Size
0dB to 22.5dB
1.5
dB
Step Size
Mute Attenuation
+12dB to -34.5dB
1.5
86
dB
dB
18
Bits
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