CMX867D2 CML Microcircuits, CMX867D2 Datasheet - Page 38

• Manufacturer Part Number: CMX867D2
• Description: Low power V.22 modem
• Manufacturer: CML Microcircuits

Low Power V.22 Modem
Notes:
Transmit DPSK Modes
(V.22 and Bell 212A)
Transmit V.21 FSK Mode
Transmit Bell 103 FSK Mode
Transmit V.23 FSK Mode
Transmit Bell 202 FSK Mode
DTMF/Single Tone Transmit
2001 Consumer Microcircuits Limited
Carrier frequency, high band
Carrier frequency, low band
Baud rate
Bit rate
550Hz guard tone frequency
550Hz guard tone level wrt data signal
1800Hz guard tone frequency
1800Hz guard tone level wrt data signal
Baud rate
Mark (logical 1) frequency, high band
Space (logical 0) frequency, high band
Mark (logical 1) frequency, low band
Space (logical 0) frequency, low band
Baud rate
Mark (logical 1) frequency, high band
Space (logical 0) frequency, high band
Mark (logical 1) frequency, low band
Space (logical 0) frequency, low band
Baud rate
Mark (logical 1) frequency, 1200 baud
Space (logical 0) frequency, 1200 baud
Mark (logical 1) frequency, 75 baud
Space (logical 0) frequency, 75 baud
Baud rate
Mark (logical 1) frequency, 1200 baud
Space (logical 0) frequency, 1200 baud
Mark (logical 1) frequency, 150 baud
Space (logical 0) frequency, 150 baud
Tone frequency accuracy
Distortion
5. % carrier frequency accuracy is the same as XTAL/CLOCK % frequency accuracy.
6. Tx signal % baud or bit rate accuracy is the same as XTAL/CLOCK % frequency
7. Measured between TXA and TXAN pins with Tx Level Control gain set to 0dB, 1k2
accuracy.
between TXA and TXAN, at V
1.4.2). Level measurements for all modem modes are performed with random
transmitted data and without any guard tone. 0dBm = 775mVrms.
DD
= 3.0V (levels are proportional to V
38
Notes
Notes
Notes
Notes
Notes
Notes
5
5
6
6
6
6
6
6
7
1797
1647
1847
1178
2222
2022
1268
1068
1298
2097
1198
2197
Min.
Min.
Min.
Min.
Min.
Min.
548
-4.0
-7.0
978
389
449
386
486
-0.2
-
-
-
-
-
-
-
-
-
1200/600
1200/150
1200/75
2400
1200
1800
1650
1850
1180
2225
2025
1270
1070
1300
2100
1200
2200
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
-3.0
-6.0
600
550
300
980
300
390
450
387
487
1.0
-
DD
- see section
Max.
1202
2203
Max.
1803
Max.
1653
1853
1182
Max.
2228
2028
1272
1072
Max.
1302
2103
Max.
388
488
+0.2
552
-2.0
-5.0
982
391
451
2.0
-
-
-
-
-
-
-
-
CMX867
Units
Baud
Units
Units
Units
Units
Units
Baud
Baud
Baud
Baud
D/867/2
Hz
Hz
Hz
Hz
bps
Hz
Hz
Hz
dB
Hz
dB
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
%
%
load