CMX983 Datasheet, PDF (77/93 Pages) CML Microcircuits – Programmable Channel Filter

Analogue Front End (AFE) for Digital Radio
CMX983
15.3 Operating Characteristics
For the conditions in Table 4 below unless otherwise specified:
Table 4 Operational Characteristics - Test Conditions
Power supplies
General
AV_DD, IOV_DD
CP1V_DD, CP2V_DD
DV_DD, RF1V_DD, RF2V_DD
3.3
V
5.0
V
1.8
V
f_MCLK, f_CLK
T_AMB
19.2 MHz
25
C
Main ADC and Rx channel configuration
Signal tone
1010 Hz
Signal amplitude, peak
1.98
V
Rx input gain
0
dB
Σ-Δ clock rate (CR1)
2.4 MHz
Sinc filter length
16
Sinc filter no.
5
Bit selector 1
17
Decimator 1 rate
16
FIR filter
Bypass
Bit selector 2
1
Decimator 2 rate
1
Output sample rate (CR3)
150 kHz
Measurement bandwidth
9
kHz
Main DAC and Tx channel configuration
Signal tone
1010 Hz
Input code level, peak
±30178
Input sample rate (CT1)
150 kHz
Upsampler 1 rate
Bypass
FIR filter
Bypass
Bit selector
Bypass
Upsampler 2 rate
16
Σ-Δ clock rate (CT3)
2.4 MHz
SC filter bandwidth
Low
Tx output gain
0
dB
External RC filter -3dB
100 kHz
Measurement bandwidth
9
kHz
DC Parameters
Supply Current – Powersave
IOI_DD
DI_DD
AI_DD
RF1I_DD or RF2I_DD
CP1I_DD or CP2I_DD
Supply Current – Idle (CLK running)
DI_DD
AI_DD
Supply Current – I and Q Tx Channels Active
IOI_DD
DI_DD
DI_DD
AI_DD
Supply Current – I and Q Rx Channels Active
IOI_DD
DI_DD
DI_DD
AI_DD
Notes Min. Typ. Max. Unit
1
–
10
–
µA
–
100
–
µA
–
20
–
µA
–
10
–
µA
–
10
–
µA
–
0.83
–
mA
6
–
0.52
–
mA
1, 2
–
1.7
–
mA
1, 2
–
6.5
–
mA
1, 5
–
5.7
–
mA
1, 2
–
6.5
–
mA
1, 2
–
0.8
–
mA
1, 2
–
7.8
–
mA
1, 5
–
7.0
–
mA
1, 2
–
7.2
–
mA
 2015 CML Microsystems Plc
77
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