CMX991 Datasheet, PDF (51/56 Pages) CML Microcircuits – Two-mode demodulator

RF Quadrature Transceiver / RF Quadrature Receiver
CMX991/CMX992
Differential Amplifiers
Gain Bandwidth Product
Input Offset Voltage
Input Common Mode Range
Input Bias Current
Input Resistance
Slew Rate
Differential Input Voltage
Input Referred Noise at 1kHz
Input Referred Noise at 450kHz
DC Output Range
Notes
30, 33
32
30
31
Min.
11
–
1.0
–
–
–
–
–
–
AV_ss+0.1
Typ.
14
1
1.6
0.4
160
6
–
15
10
–
Max.
–
–
2.5
–
–
–
1.2
–
–
AV_DD-0.1
Units
MHz
mV
V
µA
kΩ
V/µs
V
nV/Hz
nV/Hz
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
LNA Control
Enable Voltage Level
Disable Voltage Level
Notes
Min.
80%
0
Typ.
–
–
Max.
–
0.4
Units
V_DDIO
V
SLI Output
Output Voltage Range
Scaling
Operating Range
Rise time
Decay time
V_ref.
–
5
10
–
V
15
mV/dB
35
–
50
–
dB
36
–
0.2
–
µs
36, 37
–
1
–
µs
Notes:
35. See section 7.8.
36. Measured with a pulsed signal applied to IFIN and terminated with 50Ω.
37. Recovery from SLI saturated (high input signal) takes typically an additional 500ns.
38. V_ref is the reference voltage on pin VBIAS.
 2015 CML Microsystems Plc
51
D/991_992/20