CMX980AL7 CML Microcircuits, CMX980AL7 Datasheet - Page 97

• Manufacturer Part Number: CMX980AL7
• Description: TETRA Baseband Processor
• Manufacturer: CML Microcircuits

TETRA Baseband Processor
Receive Parameters
Input impedance
Input impedance
Differential Input voltage
Signal to Noise
Signal to Noise plus distortion
3
ADC sampling rate
ADC resolution
Integral accuracy
Differential accuracy
FIR filter sampling rate (Decimation section)
Output rate
Offset (Without adjustment)
Gain matching, I to Q
Phase matching, I to Q (0 - 10kHz)
Storage time (with default coefficients)
With internal anti-alias filter disabled:
With internal anti-alias filter enabled:
TETRA Specific Parameters
RRC Roll-off coefficient ( )
1999 Consumer Microcircuits Limited
rd
order intercept (3.3V operation)
(Capacitive load to V
(Source impedance should be < 1k )
(16 bit words per channel) - selectable
(Without adjustment, 0 - 10kHz)
External anti-alias requirements
External anti-alias requirements
|H(f)| 0 - 5.85kHz
|H(f)| at 9kHz
|H(f)| at 10.05kHz
|H(f)| at 12.15kHz
|H(f)| at 16kHz
|H(f)| > 25kHz
at MCLK/70
at MCLK/4
at MCLK/70
Parameter
(V
(RRC sections)
CC
SS1
= 3.3V)
or V
(V
CC
SS2
= 5.0V)
)
97
Notes
7, 8
1
1
2
2
3
4
5
6
6
6
9
Min.
100
-0.2
-2.9
-6.5
-30
-70
-85
83
80
MCLK/64
MCLK/128
MCLK/4
MCLK/4
MCLK/64
Typ.
2.25
0.35
200
±15
-3.0
-6.9
3.4
86
82
16
or
0
± 0.1
± 0.5
Max.
-110
+0.2
10.0
±40
-3.1
-7.3
-15
-13
3.8
2.5
±1
±1
17
Symbols
Degrees
V pk-pk
V pk-pk
V pk-pk
CMX980A
Units
D/980A/3
LSB
LSB
Bits
mV
k
dB
dB
Hz
Hz
Hz
Hz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF