Programmable Paging Tone Decoder
CMX823
1.7.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 3.579545MHz. VDD = 2.7V to 5.5V, Tamb = -40°C to +85°C.
Noise Bandwidth = 5kHz Band Limited Gaussian, 0dB reference = 775mVrms
Notes Min.
Typ.
Max.
Units
DC Parameters
At VDD = 2.7V
IDD ( Zero Power)
IDD (Operating)
1
1
–
–
1.0
0.75
2.0
1.5
µA
mA
At VDD = 5.0V
IDD (Zero Power)
IDD (Operating)
1
1
–
–
1.0
1.5
2.0
3.0
µA
mA
C-BUS Interface
Input Logic "1"
Input Logic "0"
70%
–
-1.0
–
90%
–
–
–
–
–
–
–
–
–
–
VDD
VDD
µA
30%
1.0
7.5
–
10%
1.0
Input Leakage Current (Logic "1" or "0")
Input Capacitance
Output Logic "1" (IOH = 360µA)
Output Logic "0" (IOL = 360µA)
IRQN O/P "Off" State Leakage Current (Vout = VDD
pF
VDD
VDD
µA
)
AC Parameters
Decoder
Sensitivity
2
–
-
-65.0
–
-
dB
Tone Measurement Resolution
Slow measurement Mode
Fast measurement Mode
Tone Measurement Accuracy
Response Time
De-Response Time
±0.1
±0.2
±0.5
33.0
79.0
%
%
%
ms
ms
–
–
–
–
49.0
85.0
Slow measurement Mode
Slow measurement
Mode
3
Response Time
De-Response Time
Frequency Range
Signal/Noise
Fast measurement Mode
Fast measurement Mode
–
–
280
–
28.0
46.0
–
37.0
65.0
3500
–
ms
ms
Hz
dB
3
-4
Input Amplifier
Open Loop Gain
Unity Gain Bandwidth
Input Impedance
Output Impedance
(I/P = 1mV at 100Hz)
–
–
10.0
70.0
5.0
–
–
–
–
–
dB
MHz
MW
kW
(at 100Hz)
(Open Loop)
–
6.0
Xtal/Clock Input
Pulse Width ('High' or 'Low')
Input Impedance (at 100Hz)
Gain (I/P = 1mVrms at 100Hz)
4
40.0
10.0
20.0
–
–
–
–
–
–
ns
MW
dB
Notes:
1.
2.
3.
4.
Not including any current drawn from the device pins by external circuitry.
Sensitivity is independent of VDD
De-response times are for 95% probability.
.
Timing for an external input to the XTAL/CLOCK pin.
ã 2003 CML Microsystems Plc
19
D/823/3
CMLMICRO [ CML MICROCIRCUITS ]
