FX818D5 View Datasheet(PDF) - CML Microsystems Plc
Part Name
Description
MFG CO.
'FX818D5' PDF : 26 Pages View PDF
CTCSS Signalling Processor
FX818
Audio Band-Pass Filter
Passband
Passband Gain (at 1.0kHz)
Passband Ripple (w.r.t. gain at 1.0kHz)
Stopband Attenuation
Residual Hum and Noise
Alias Frequency
Output Impedances
TX SUB-AUDIO OUT and (Enabled)
RX AUDIO OUT
(Disabled)
Rx Amp and Summing Amp
Open Loop Gain
(I/P = 1mV at 100Hz)
Unity Gain Bandwidth
Input Impedance
(at 100Hz)
Output Impedance
(Open Loop)
Transmitter Modulator Drives:
Mod.1 Attenuator
Attenuation (at 0dB)
Cumulative Attenuation Error
(wrt attenuation at 0dB)
Output Impedance
Input Impedance (at 100Hz)
Mod.2 Attenuator
Attenuation (at 0dB)
Cumulative Attenuation Error
(wrt attenuation at 0dB)
Output Impedance
General Purpose Timer
Timing Period Range
Count Interval
Xtal/Clock Input
Pulse Width ('High' or 'Low')
Input Impedance (at 100Hz)
Gain (I/P = 1mVrms at 100Hz)
Notes Min.
8
300
8
-
8
-2
8
33.0
-
-
-
-
-
-
10
-
-0.2
-1.0
3
-
-
-0.2
-0.6
3
-
1
-
4
40.0
10.0
20.0
Typ.
-
0
-
-
-50.0
63
2.0
500
70.0
5.0
-
6.0
0
-
600
15.0
0
-
600
-
0.95
-
-
-
Max.
3000
-
+0.5
-
-
-
-
-
-
-
-
-
0.2
1.0
-
-
0.2
0.6
-
242
-
-
-
-
Units
Hz
dB
dB
dB
dBp
kHz
k
k
dB
MHz
MΩ
kΩ
dB
dB
Ω
kΩ
dB
dB
Ω
ms
ms
ns
MΩ
dB
Notes:
1. At VDD = 5.0V only. Signal levels or currents are proportional to VDD.
2. Not including any current drawn from the device pins by external circuitry.
3. Small signal impedance, at VDD = 5.0V and Tamb = 25°C.
4. Timing for an external input to the XTAL/CLOCK pin.
5. With input gain components set as recommended in Figure 2.
6. IRQN pin.
7. From one tone to another tone.
8. See filter response (Figure 3).
9. Measured at MOD1 or MOD2 output.
© 1997 Consumer Microcircuits Limited
23
D/818/4
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