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CMX991 Datasheet(PDF) 51 Page - CML Microcircuits

Part No. CMX991
Description  Two-mode demodulator
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Maker  CMLMICRO [CML Microcircuits]
Homepage  http://www.cmlmicro.com
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CMX991 Datasheet(HTML) 51 Page - CML Microcircuits

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RF Quadrature Transceiver / RF Quadrature Receiver
CMX991/CMX992
 2015 CML Microsystems Plc
51
D/991_992/20
Differential Amplifiers
Notes
Min.
Typ.
Max.
Units
Gain Bandwidth Product
30, 33
11
14
MHz
Input Offset Voltage
1
mV
Input Common Mode Range
32
1.0
1.6
2.5
V
Input Bias Current
0.4
µA
Input Resistance
160
Slew Rate
30
6
V/µs
Differential Input Voltage
31
1.2
V
Input Referred Noise at 1kHz
15
nV/
Hz
Input Referred Noise at 450kHz
10
nV/
Hz
DC Output Range
AVss+0.1
AVDD-0.1
V
Notes:
30.
With a load of 1kΩ in parallel with 100pF referenced to a virtual earth not ground.
31. The inputs are protected with diodes. These diodes prevent the inadvertent application of
voltages that may cause damage to the input transistors.
32. For small signal operation. It is recommended that for this application the input levels be
restricted to +/-0.4V about a defined reference voltage of 1.6V (nominal); this will allow for
some tolerance in components and for the precision of the setting the reference voltage.
33. Gain Bandwidth Product typically 40MHz with 15pF load.
Auxiliary Rx Functions
Notes
Min.
Typ.
Max.
Units
LNA Control
Enable Voltage Level
80%
VDDIO
Disable Voltage Level
0
0.4
V
SLI Output
Output Voltage Range
Vref.
V
Scaling
5
10
15
mV/dB
Operating Range
35
50
dB
Rise time
36
0.2
µs
Decay time
36, 37
1
µs
Notes:
35. See section 7.8.
36. Measured with a pulsed signal applied to IFIN and terminated with 50
Ω.
37. Recovery from SLI saturated (high input signal) takes typically an additional 500ns.
38. Vref is the reference voltage on pin VBIAS.


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