LM4548 National Semiconductor, LM4548 Datasheet - Page 2

• Manufacturer Part Number: LM4548
• Description: AC 97 Rev 2 Codec with Sample Rate Conversion and National 3D Sound
• Manufacturer: National Semiconductor

www.national.com
AV
DV
D
A
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
DSD
ASD
The following specifications apply for AV
Limits apply for T
IN
IDD
IDD
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
DD
pins 27, 28
pin 3
pin 3
Analog Supply Range
Digital Supply Range
Digital Quiescent Power Supply
Current
Analog Quiescent Power Supply
Current
Digital Shutdown Current
Analog 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(Note 2)
Input Capacitance
Interchannel Gain Mismatch
Step Size
Step Size
Mute Attenuation
Resolution
A
= 25˚C. The reference for 0dB is 1Vrms unless otherwise specified.
Parameter
−0.3V to V
DD
(Notes 1, 3)
−40˚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, Fs = 48kHz, single codec configuration, unless otherwise noted.
= -3dB, f = 1kHz, R
= 5V
= 3.3V
2
Operating Ratings
Conditions
Soldering Information
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
0.01
500
0.1
-95
1.5
1.5
43
20
53
30
40
97
40
15
86
18
1
1
LM4548
3.0V
4.2V
(Note 8)
−40˚C
Limit
0.02
4.2
5.5
3.0
5.5
90
10
AV
DV
T
DD
DD
A
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
5.5V
5.5V
µA
µA
dB
dB
pF
dB
dB
dB
dB
V
(min)