lm4832 National Semiconductor Corporation, lm4832 Datasheet - Page 3

• Manufacturer Part Number: lm4832
• Description: Digitally Controlled Tone And Volume Circuit With Stereo Audio Power Amplifier, Microphone Preamp Stage And National 3d Sound
• Manufacturer: National Semiconductor Corporation

P
THD+N
PSRR
A
X
MICROPHONE PREAMP AND VOLUME CONTROL
A
A
A
V
E
PSRR
A
X
THD+N
I
f
T
T
T
T
T
I
V
2
MAX
2
START:HOLD
D;SETUP
C;HIGH
C;LOW
STOP;SETUP
O
M
TALK
V
R
S
SWING
NO
M
TALK
C BUS TIMING
C BUS INPUT AND OUTPUT
IL
Electrical Characteristics for Entire IC
The following specifications apply for V
Symbol
Output Power
Total Harmonic Distortion+Noise
Power Supply Rejection Ratio
Mute Attenuation
Cross Talk
Preamp Gain
Attenuator Range
Step Size
Step Size Error
Output Voltage Swing
Input Referred Noise
Power Supply Rejection Ratio
Mute Attenuation
Cross Talk
Total Harmonic Distortion Plus Noise
Maximum Bus Frequency
Start Signal: Hold Time before
Clock/Data Transitions
Data Setup Time
Minimum High Clock Duration
Minimum Low Clock Duration
Stop Signal: Setup Time before
Clock/Data Transitions
Input Low Voltage
Parameter
DD
= 5V unless otherwise noted. Limits apply for T
THD = 1.0% (max), f = 1 kHz, All
controls at 0dB
R
R
All Controls at 0 dB, THD = 10%, f = 1
kHz
R
P
P
V
C
mVrms, All Controls at 0 dB Setting
f = 1 kHz, V
P
All controls at 0 dB setting,
f = 1 kHz
Left to Right
Right to Left
0 dB Gain
+20 dB Gain
+30 dB Gain
Gain at +18 dB Setting
Attenuation at −42 dB Setting
0 dB to −42 dB
f = 1 kHz, THD
A-Weighted, Attenuator at 0 dB
f = 100 Hz, V
C
Power Amp P
All controls at 0 dB, f = 1 kHz, V
0 dB Setting
+20 dB Gain
+30 dB Gain
O
O
O
O
L
L
L
B
B
= 8Ω
= 32Ω
= 8Ω
= 200 mW, R
= 75 mW, R
= 1 Vrms, R
= 1 µF, f = 100 Hz, V
= 200 mW, R
= 1 µF
3
(Notes 1, 2) (Continued)
IN
RIPPLE
O
Conditions
= 1V
L
L
<
= 200 mW, f = 1 kHz
L
L
= 32Ω
= 10Ω
1.0%, R
= 8Ω
= 8Ω,
= 100 mVrms,
RIPPLE
L
= 1 kΩ
= 100
O
= 1V
A
= 25˚C.
(Note 6)
Typical
0.15
0.11
0.08
0.03
0.03
0.04
250
350
−75
−85
−72
−90
−90
0.4
1.7
95
45
20
30
35
0
3
7
LM4832
(Note 7)
(Note 8)
19, 21
29, 31
Limit
−1, 1
−43
400
0.6
0.1
0.6
1.3
0.6
1.5
75
20
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mW (min)
mW (min)
dB (max)
dB (max)
dB (min)
µV (min)
(Limits)
V (max)
Units
V
mW
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
µs
µs
µs
µs
µs
%
%
%
%
%
%
rms