DS4420 Maxim, DS4420 Datasheet - Page 5

• Manufacturer Part Number: DS4420
• Description: The DS4420 is a fully differential, programmable gain amplifier for audio applications
• Manufacturer: Maxim

(T
A
= +25°C, V
-10
-20
-30
-40
120
100
30
20
10
80
60
40
20
0
0
0
0
IN+ AND IN- SHORTED TOGETHER
ACROSS -20°C TO +70°C
WITH 50Ω LOAD, 1kΩ LOAD,
AND NO LOAD
POWER-SUPPLY REJECTION RATIO
CC
5
5
GAIN vs. SETTING
vs. GAIN SETTING
= AV
GAIN SETTING
GAIN SETTING
CC
50Ω LOAD
50Ω LOAD
10
10
20kHz
1kHz
= 5.0V, unless otherwise noted.)
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
0.00
10
15
WITH 50Ω LOAD
AND 1kΩ LOAD
1V
+10dB SETTING
15
RMS
TOTAL HARMONIC DISTORTION
INPUT
100
20
I
20
vs. FREQUENCY
FREQUENCY (Hz)
2
_____________________________________________________________________
C Programmable-Gain Amplifier
1000
Typical Operating Characteristics (continued)
-100
-120
-140
-10
-20
-40
-50
-60
-80
-30
-70
-20
-40
-60
-80
0
0
1000
COMMON-MODE FREQUENCY RESPONSE
0
10,000
NO LOAD
NO LOAD
CCITT NOISE vs. GAIN SETTING
5
100,000
SWEEP AT -11dB
FREQUENCY (Hz)
GAIN SETTING
10,000
10
for Audio Applications
-10
-15
-20
-25
-30
-35
-40
10
-5
5
0
TOTAL HARMONIC DISTORTION vs. V
50Ω LOAD
1kHz 2V
INPUT
15
2
4
RMS
100,000
6
20
8
GAIN SETTING
10 12 14 16 18 20
THD+N
0.018
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.002
0.000
-10
-20
-30
-40
30
20
10
0
1000
10
WITH 50Ω LOAD
AND 1kΩ LOAD
1V
-11dB SETTING
VOUT
RMS
GAIN vs. FREQUENCY RESPONSE
TOTAL HARMONIC DISTORTION
DS4420 toc11
INPUT
100
+25dB SETTING
-2dB SETTING
-35dB SETTING
10,000
OUT
vs. FREQUENCY
FREQUENCY (Hz)
FREQUENCY (Hz)
0.020
0.018
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.002
0.000
1000
100,000
10,000
50Ω LOAD
1,000,000
100,000
5