CMX838 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'CMX838' PDF : 71 Pages View PDF
FRS/PMR446/GMRS Family Radio Processor
External Processing Paths
AIN, BIN - Input Impedance
AOUT, BOUT – Output Impedance
RXIN
Input Impedance
Auxiliary Input/Output (AUX I/O)
Input Impedance – AUX output disabled
Output Impedance – AUX output enabled
Transmitter Modulator Drives
Mod.1 Attenuator
Attenuation at 0dB
Cumulative Attenuation Error
with respect to attenuation at 0dB
Mod.2 Attenuator
Attenuation at 0dB
Cumulative Attenuation Error
with respect to attenuation at 0dB
Xtal/Clock Input
Pulse Width ('High' or 'Low')
Input Impedance (at 100Hz)
Gain Input = 1mVRMS at 100Hz
Transmit Input Amplifier (microphone amplifier)
Maximum capacitive load
Unity Gain BW (unloaded)
Maximum closed loop gain
Slew Rate
Gain Control Amplifiers: MOD1, MOD2, RXOUT
Enabled - Output Swing
Disabled - Output Impedance
Maximum capacitive load
Unity Gain BW (unloaded)
Slew Rate
RF Synthesizer
RF Input Sensitivity
Minimum Internal Phase Comparison Frequency
RF Input Frequency
Maximum reference input frequency
Sinusoidal input voltage (mVRMS)
Input impedance (real)
Notes Min.
Typ.
100
2.0
100
100
100
Max.
CMX838
Units
kΩ
kΩ
kΩ
kΩ
kΩ
-0.2
0
-1.0
0.2
dB
1.0
dB
-0.2
0
-0.6
0.2
dB
0.6
dB
9
40.0
ns
10.0
MΩ
20.0
dB
100
pF
5
MHz
40
dB
1
V/µs
8
2.7
VP-P
100
kΩ
150
pF
2.6
MHz
2.1
V/µs
-20
dBm
6.25
kHz
100
500
MHz
25
MHz
100
500
mVRMS
100
kΩ
2003 CML Microsystems Plc
67
D/838/8
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