lm4543 National Semiconductor Corporation, lm4543 Datasheet - Page 3

• Manufacturer Part Number: lm4543
• Description: Ac ?97 Codec With National 3d Sound
• Manufacturer: National Semiconductor Corporation

Analog to Digital Converters
Digital to Analog Converters
THD
D
Output Volume Section
A
A
Digital I/O (Note 2)
V
V
V
V
I
I
I
Digital Timing Specifications (Note 2)
F
T
T
F
T
T
T
T
T
T
T
T
T
L
L
DR
The following specifications apply for AV
for 0dB is 1Vrms unless otherwise specified.
S
M
IL
HI
OH
OL
BC
BCP
CH
SYNC
SP
SH
SL
SETUP
HOLD
RISE
FALL
RST_LOW
RST2CLK
T
Electrical Characteristics
Symbol
Dynamic Range (Note 2)
Frequency Response
Resolution
Dynamic Range (Note 2)
Total Harmonic Distortion
Frequency Response
Group Delay (Note 2)
Out of Band Energy
Stop Band Rejection
Discrete Tones
Step Size
Mute Attenuation
Low level input voltage
High level input voltage
High level output voltage
Low level output voltage
Input Leakage Current
Tri state Leakage Current
Output drive current
BIT_CLK frequency
BIT_CLK period
BIT_CLK high
SYNC frequency
SYNC period
SYNC high pulse width
SYNC low pulse width
Setup Time
Hold Time
Rise Time
Fall Time
RESET# active low pulse width
RESET# inactive to BIT_CLK start
up
Parameter
DD
(Notes 1, 3) (Continued)
= 5V, DV
DD
-60dB Input THD+N, A-Weighted
-1dB Bandwidth
-60dB Input THD+N, A-Weighted
V
-1dB Bandwidth
0dB to -46.5dB
AC Link inputs
High impedance AC Link outputs
AC Link outputs
Variation of BIT_CLK period from 50%
duty cycle
SDATA_IN, SDATA_OUT to falling
edge of BIT_CLK
Hold time of SDATA_IN, SDATA_OUT
from falling edge of BIT_CLK
BIT_CLK, SYNC, SDATA_IN or
SDATA_OUT
BIT_CLK, SYNC, SDATA_IN or
SDATA_OUT
For cold reset
For cold reset
IN
= 5V unless otherwise noted. Limits apply for T
= -3dB, f=1kHz, R
3
Conditions
L
= 10k
(Note 7)
Typical
12.288
0.01
81.4
20.8
19.5
-40
-96
1.5
1.3
90
20
18
89
21
70
86
48
5
LM4543
A
= 25˚C. The reference
(Note 8)
0.30 x
DVDD
0.40 x
DVDD
0.50 x
DVDD
0.20 x
DVDD
162.8
Limit
0.03
±
±
±
1.0
75
85
15
1
5
6
6
10
10
20
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mS (max)
µA (max)
µA (max)
nS (max)
nS (max)
dB (min)
dB (min)
% (max)
% (max)
nS (min)
nS (min)
µS (min)
nS (min)
(Limits)
V (max)
V (max)
V (min)
V (min)
Units
MHz
kHz
kHz
kHz
Bits
mA
dB
dB
dB
dB
dB
nS
µS
µS
µS