CMX602B Consumer Microcircuits Limited, CMX602B Datasheet - Page 21

• Manufacturer Part Number: CMX602B
• Description: Calling Line Identifier Plus Call Waiting Type ii
• Manufacturer: Consumer Microcircuits Limited

Calling Line Identifier
Notes:
 2003 CML Microsystems Plc
FSK Receiver
Input Signal Amplifier
XTAL Input
Transmission rate
V23 Mark (logical 1) frequency
V23 Space (logical 0) frequency
Bell202 Mark (logical 1) frequency
Bell202 Space (logical 0) frequency
Valid input level range
Acceptable twist (mark level wrt space level)
Acceptable Signal to Noise ratio
Level Detector 'on' threshold level
Level Detector 'off' to 'on' time (Fig 4 Teon)
Level Detector 'on' to 'off' time (Fig 4 Teoff)
Input impedance
Voltage gain
'High' pulse width
'Low' pulse width
V23
Bell202
V23
Bell202
1. At 25 C, not including any current drawn from the CMX602B pins by external circuitry
2. RD, MODE, RXCK inputs at V
3. All conditions must be met to ensure detection.
4. For V
5. Flat noise in 300 - 3400Hz band for V23, 200 - 3200Hz for Bell202.
6. Meeting any of these conditions will ensure non-detection.
7. Open loop, small signal low frequency measurements.
8. Timing for an external input to the CLOCK/XTAL pin.
other than X1, C1 and C2.
components as section 1.4. The internal threshold levels are proportional to V
cater for other supply voltages or different signal level ranges the voltage gain of the input
signal amplifier should be adjusted by selecting the appropriate external components as
described in section 1.5
DD
= 3.3V with equal level tones and with the input signal amplifier external
SS
, ZP input at V
21
Notes
4
5
5
4
7
8
8
DD
1188
-40.0
-10.0
1280
2068
1188
2178
Min.
20.0
30.0
10.0
. See also Figure 11.
-6.0
100
100
8.0
1200
1300
2100
1200
2200
Typ.
500
+10.0
-40.0
Max.
1212
1320
2132
1212
2222
+6.0
25.0
-8.0
DD
. To
CMX602B
D/602B/2
Units
Baud
dBV
dBV
M
V/V
ms
ms
Hz
Hz
Hz
Hz
dB
dB
dB
dB
ns
ns