DS4420 Maxim, DS4420 Datasheet - Page 4

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

I
for Audio Applications
Note 1: All voltages are referenced to ground. Currents entering the IC are specified positive, and currents exiting the IC are negative.
Note 2: Standby supply current specified with SDA = SCL = V
Note 3: Input resistance during mute and power-down is approximately one-half of the active-mode resistance.
Note 4: Each output is capable of driving a 100nF capacitive load to ground using an external 10Ω series resistor. However, output
Note 5: Guaranteed by design.
Note 6: This is the time it takes for the output to become active after exiting standby mode.
Note 7: I
Note 8: C
Note 9: The current specified is the sum of V
Note 10: Gain accuracy specified assuming the output impedance of signal source driving of the DS4420 is ≤ 2.5kΩ.
(T
4
2
A
= +25°C, V
84
82
80
78
76
74
72
70
C Programmable-Gain Amplifier
_____________________________________________________________________
4.50
SUPPLY CURRENT vs. SUPPLY VOLTAGE
V
NO LOAD
IN+ AND IN- SHORTED
TOGETHER
CC
100mV of V
capacitance should be minimal for optimal distortion performance.
mode timing.
2
B
C interface timing shown is for fast-mode (400kHz) operation. This device is also backward-compatible with I
= AV
(STANDBY MODE ENABLED)
= total capacitance of one bus line in picofarads.
4.75
CC
CC
= SDA = SCL
SUPPLY VOLTAGE (V)
= AV
CC
5.00
CC
or GND.
+70°C
-20°C
= 5.0V, unless otherwise noted.)
5.25
+25°C
5.50
CC
and AV
1.8
1.7
1.6
1.5
1.4
4.50
SUPPLY CURRENT vs. SUPPLY VOLTAGE
V
NO LOAD
IN+ AND IN- SHORTED
TOGETHER
CC
CC
= AV
CC
4.75
supply currents.
(SETTING AT -11dB)
= SDA = SCL
SUPPLY VOLTAGE (V)
CC
, the output disconnected, and A0, A1, and A2 driven to within
5.00
Typical Operating Characteristics
+25°C
5.25
+70°C
-20°C
5.50
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
SUPPLY CURRENT vs. GAIN SETTING
IN+ AND IN- SHORTED
TOGETHER
NO LOAD
5
GAIN SETTING
10
2
C standard-
15
20