Quad Digital Control Amplifier
9
MX019
6.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
VDD = 5.0V, TAMB = 25°C
Audio Level 0dB ref. = 775mVRMS, Amplifier Gain Set = 0dB
Notes
Min.
Typ.
Max
Units
Static Values
Supply Current
1.5
mA
Dynamic Values
Control Functions
Input Logic '1'
3.5
0.5
V
V
Input Logic '0'
1.5
Digital Input Impedances
Amplifier Stages (General)
Bandwidth (-3dB)
1.0
Mꢃ
20.0
kHz
kꢃ
Output Impedance
1.0
0.35
180.0
1.73
Total Harmonic Distortion
Output Noise Level (per stage)
Onset of Clipping
Gain Variation
1
2
3
4
0.5
%
400.0
µVRMS
VRMS
dB
0.1
Interstage Isolation
“Trimmer” Stages (Ch1 – Ch3)
Gain
60.0
0.43
dB
-3.0
+3.0
0.2
dB
dB
dB
kꢃ
Gain per Step (15 in No.)
Step Error
Input Impedance
“Volume” Stage (Ch4)
Gain
100.0
-14.0
+14.0
0.4
dB
dB
dB
kꢃ
Gain per Step (15 in No.)
Step Error
2.0
Input Impedance
50.0
Operating Characteristics Notes:
1. Gain Set 0dB, Input Level 1kHz -3.0dB (549mVrms).
2. With an a.c short-circuit input, measured in a 30kHz bandwidth.
3. See Figure 4.
4. Over the temperature and supply voltage range.
ꢀ1998 MX-COM, INC.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
www.mxcom.com Tel: 800 638 5577 910 744 5050 Fax: 910 744 5054
Doc. # 20480077.006
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