Marine VHF Audio and Signalling Processor
CMX885
AC Parameters (continued)
Notes
Min.
Typ.
Max.
Unit
Auxiliary Signal Inputs (Aux ADC 1)
Source Output Impedance
51
–
–
24
kΩ
Auxiliary 10 Bit ADC
Resolution
–
–
–
10
–
250
–
80%
–
Bits
AVDD
µs
Maximum Input Level (pk-pk)
Conversion Time
54
52
Input Impedance
Resistance
Capacitance
–
–
10
5
–
–
MΩ
pF
Zero Error
⎫
⎭
(input offset to give ADC output = 0)
Integral Non-linearity
Differential Non-linearity
0
–
–
–
–
–
±10
±3
±1
mV
LSBs
LSBs
53
54
Auxiliary 10 Bit DACs
Resolution
–
80%
10
–
–
–
Bits
AVDD
Maximum Output Level (pk-pk), no load
Zero Error
(output offset from a DAC input = 0)
Resistive Load
⎫
⎭
0
5
–
–
–
–
–
–
±10
–
±4
±1
mV
kΩ
LSBs
LSBs
Integral Non-linearity
Differential Non-linearity
53
51
Denotes output impedance of the driver of the auxiliary input signal, to ensure
< 1 bit additional error under nominal conditions.
With an auxiliary clock frequency of 3.6864MHz.
Guaranteed monotonic with no missing codes.
Level centered about AVDD/2.
Notes:
52
53
54
© 2010 CML Microsystems Plc
64
D/885/3
CMLMICRO [ CML MICROCIRCUITS ]
