CMX138 CML Microcircuits, CMX138 Datasheet - Page 66

• Manufacturer Part Number: CMX138
• Description: Audio Scrambler and Sub-Audio Signalling Processor
• Manufacturer: CML Microcircuits

Audio Scrambler and Sub-Audio Signalling Processor
© 2008 CML Microsystems Plc
Notes:
AC Parameters (cont.)
Auxiliary Signal Inputs (Aux ADC)
Auxiliary 10 Bit ADC
Auxiliary 10 Bit DAC
Source Output Impedance
Resolution
Maximum Input Level (pk-pk)
Conversion time
Input impedance
Zero error
Integral Non-linearity
Differential Non-linearity
Resolution
Maximum Output Level (pk-pk), no load
Zero error
Resistive Load
Integral Non-linearity
Differential Non-linearity
Resistance
Capacitance
(input offset to give ADC output = 0)
(output offset from a DAC input = 0)
51
52
53
54
55
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 6.144MHz.
Guaranteed monotonic with no missing codes.
Centred about AV
Designed for 10-bit accuracy, but only 8-bit accuracy is guaranteed.
DD
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Notes
51
55
54
52
53
55
54
53
Min.
80%
–
–
–
–
–
–
0
–
–
–
0
5
–
–
Typ.
62.4
100
10
10
–
–
5
–
–
–
–
–
–
–
–
Max.
80%
±20
±10
±4
±2
±4
±2
24
–
–
–
–
–
–
–
D/138_FI1.0/5
AV
AV
LSBs
LSBs
LSBs
LSBs
CMX138
Unit
Bits
Bits
mV
mV
kΩ
kΩ
kΩ
pF
µs
DD
DD