Digital PMR Radio Processor
CMX7131/CMX7141
AC Parameters (cont.)
Notes
Min.
Typ.
Max.
Unit
Auxiliary Signal Inputs (Aux ADC 1 to 4)
Source Output Impedance
51
–
–
24
k
Auxiliary 10 Bit ADCs
Resolution
–
–
–
10
–
250
–
80%
–
Bits
Maximum Input Level (pk-pk)
Conversion Time
Input Impedance
Resistance
Capacitance
Zero Error
54
52
AV
DD
µs
57
55
53
–
–
0
–
–
>10
5
–
–
–
–
–
±10
±3
±1
M
pF
mV
LSBs
LSBs
Integral Non-linearity
Differential Non-linearity
Auxiliary 10 Bit DACs
Resolution
–
80%
0
5
–
10
–
–
–
–
–
–
±10
–
±4
±1
Bits
Maximum Output Level (pk-pk), no load
Zero Error
Resistive Load
Integral Non-linearity
Differential Non-linearity
54
56
AV
DD
mV
k
LSBs
LSBs
53
–
–
51
Denotes output impedance of the driver of the auxiliary input signal, to ensure
<1 bit additional error under nominal conditions.
Notes:
52
53
54
55
56
With an auxiliary clock frequency of 6.144MHz.
Guaranteed monotonic with no missing codes.
Centred about AV /2.
DD
Input offset from a nominal VBIAS input, which produces a $0200 ADC output.
Output offset from a $0200 DAC input, measured with respect to a nominal VBIAS
output.
57
Measured at dc.
2014 CML Microsystems Plc
Page 68
D/7141_FI-3.x/6
CMLMICRO [ CML MICROCIRCUITS ]
