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LM4550 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM4550
Description  AC ’97 Rev 2.1 Multi-Channel Audio Codec with Stereo Headphone Amplifier, Sample Rate Conversion and National 3D Sound
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM4550 Datasheet(HTML) 3 Page - National Semiconductor (TI)

 
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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
6.0V
Storage Temperature
−65˚C to +150˚C
Input Voltage
−0.3V to V
DD +0.3V
ESD Susceptibility (Note 5)
2000V
pin 3
750V
ESD Susceptibility (Note 6)
200V
pin 3
100V
Junction Temperature
150˚C
Soldering Information
LQFP Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450 "Surface Mounting and their Effects on
Product Reliability" for other methods of
soldering surface mount devices.
θ
JA (typ) — VBH48A
74˚C/W
Operating Ratings
Temperature Range
T
MIN
≤ T
A
≤ T
MAX
−40˚C
≤ T
A
≤ 85˚C
Analog Supply Range
4.2V
≤ AV
DD
≤ 5.5V
Digital Supply Range
3.0V
≤ DV
DD
≤ 5.5V
Electrical Characteristics(Notes 1, 3) The following specifications apply for AV
DD = 5V, DVDD = 5V, Fs =
48kHz, single codec configuration, unless otherwise noted. Limits apply for T
A= 25˚C. The reference for 0dB is 1Vrms unless
otherwise specified.
Symbol
Parameter
Conditions
LM4550
Units
(Limits)
Typical
(Note 7)
Limit
(Note 8)
AV
DD
Analog Supply Range
4.2
V (min)
5.5
V (max)
DV
DD
Digital Supply Range
3.0
V (min)
5.5
V (max)
D
IDD
Digital Quiescent Power Supply
Current
D
VDD =5V
43
mA
D
VDD = 3.3V
20
mA
A
IDD
Analog Quiescent Power Supply
Current
53
mA
I
DSD
Digital Shutdown Current
500
µA
I
ASD
Analog Shutdown Current
30
µA
V
REF
Reference Voltage
2.23
V
PSRR
Power Supply Rejection Ratio
40
dB
Analog Loopthru Mode
Dynamic Range (Note 2)
CD Input to Line Output, -60dB Input
THD+N, A-Weighted
97
90
dB (min)
THD
Total Harmonic Distortion
V
O = -3dB, f = 1kHz, RL = 10k
0.01
0.02
% (max)
Analog Input Section
V
IN
Line Input Voltage
1
Vrms
Mic Input with 20dB Gain
0.1
Vrms
Mic Input with 0dB Gain
1
Vrms
Xtalk
Crosstalk
CD Left to Right
-95
dB
Z
IN
Input Impedance(Note 2)
40
10
k
Ω (min)
C
IN
Input Capacitance
15
pF
Interchannel Gain Mismatch
CD Left to Right
0.01
dB
Record Gain Amplifier - A/D
A
S
Step Size
0dB to 22.5dB
1.5
dB
Mixer Section
A
S
Step Size
+12dB to -34.5dB
1.5
dB
A
M
Mute Attenuation
86
dB
www.national.com
3


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