Digitally Controlled Analog I/O Processor
16
MX839 PRELIMINARY INFORMATION
Notes
Min.
Typ.
10
Max.
Units
A/Ds and Multiplexed Inputs
(Guaranteed monotonic)
Resolution
Bits
Input signal 'linear rate of change'
For 1 Bit error
0.27
mV/µs
V
DD
= 3.3V, and f
= 1MHz
A/D_CLK
Conversion Time
f
= 1MHz
12
µs
A/D_CLK
Integral non-linearity
Differential non-linearity
Zero error
Figure 4
Figure 3
7
6
2.0
1.0
LSBs
-20
20
mV
A/D Clock Frequency (f
Input Capacitance
)
1.0
TBD
MHz
A/D_CLK
TBD
pF
Variable Attenuators
Nominal Adjustment Range
MOD1 Attenuator
MOD2 Attenuator
Attenuation Accuracy
Step Size
0
0
12.0
6.0
dB
dB
dB
-1.0
1.0
MOD1
0.2
0.1
0.4
0.2
600
100
15
0.6
0.3
dB
dB
:
MOD2
Output Impedance
Bandwidth (-3dB)
Input Impedance
5
kHz
k:
Magnitude Comparators and Interrupt
Request
Resolution
8
Bits
10%
10
DV
Output Logic '0' at IRQ (I = 360µA and pull-up
DD
OL
resistor R2 = 22k: ± 10% to DV
)
DD
V
OUT
= DV
µA
'Off' State Leakage Current at IRQ
Xtal/Clock Input
DD
Frequency Range
8
0.5
40
40
6.0
MHz
ns
'High' pulse width
'Low' pulse width
ns
Input Impedance (at 100Hz)
10
20
M:
dB
Gain (input = 1mV
at 100Hz)
RMS
© 1998 MXxCOM Inc.
www.mxcom.com Tele: 800 638-5577 336 744-5050 Fax: 336 744-5054
Doc. # 20480164.002
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