LM4540 National Semiconductor, LM4540 Datasheet - Page 2

• Manufacturer Part Number: LM4540
• Description: AC 97 Codec with National 3D Sound
• Manufacturer: National Semiconductor

www.national.com
AV
DV
I
I
I
V
PSRR
Analog Loopthru Mode
THD
Analog Input Section
V
Xtalk
Z
C
Record Gain Amplifier - A/D
A
Mixer Section
A
A
Analog to Digital Converters
DDD
DDA
SD
The following specifications apply for AV
for 0dB is 1Vrms unless otherwise specified.
IN
REF
IN
IN
S
S
M
Electrical Characteristics
Absolute Maximum Ratings
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Symbol
DD
Supply Voltage
Storage Temperature
Input Voltage
ESD Susceptibility (Note 5)
ESD Susceptibility (Note 6)
Junction Temperature
Soldering Information
DD
pins 27, 28
pin 3
pin 3
Analog Supply Range
Digital Supply Range
Digital Quiescent Power Supply
Current
Analog Quiescent Power Supply
Current
Shutdown Current
Reference Voltage
Power Supply Rejection Ratio
Dynamic Range (Note 2)
Total Harmonic Distortion
Line Input Voltage
Mic Input with 20dB Gain
Mic Input with 0dB Gain
Crosstalk
Input Impedance
Input Capacitance
Interchannel Gain Mismatch
Step Size
Step Size
Mute Attenuation
Resolution
Parameter
−0.3V to V
DD
(Notes 1, 3)
−65˚C to +150˚C
= 5V, DV
(Note 3)
DD
DD
D
D
CD Input to Line Output, -60dB Input
THD+N, A-Weighted
V
CD Left to Right
CD Left to Right
0dB to 22.5dB
+12dB to -34.5dB
2500V
1500V
150˚C
+0.3V
750V
200V
100V
VDD
VDD
O
6.0V
= 5V unless otherwise noted. Limits apply for T
= -3dB, f = 1kHz, R
= 5V
= 3.3V
2
Operating Ratings
Conditions
See AN-450 Surface Mounting and their Effects on
Product Reliability for other methods of
soldering surface mount devices.
Temperature Range
Analog Supply Range
JA
TQFP Package
Vapor Phase (60 sec.)
Infrared (15 sec.)
T
MIN
(typ) — VBH48A
Digital Supply Range
L
T
= 10k
A
T
MAX
(Note 7)
Typical
2.23
0.01
0.04
1.5
0.1
-85
1.5
1.5
38
20
55
40
95
40
15
86
18
1
1
LM4540
A
= 25˚C. The reference
3.0V
4.2V
(Note 8)
−40˚C
Limit
0.02
4.2
5.5
3.0
5.5
-70
90
10
AV
DV
T
DD
DD
A
dB (max)
74˚C/W
k
dB (min)
% (max)
(Limits)
V (max)
V (max)
V (min)
V (min)
215˚C
220˚C
Units
Vrms
Vrms
Vrms
Bits
85˚C
mA
mA
mA
mA
5.5V
5.5V
dB
pF
dB
dB
dB
dB
V
(min)