CMX867D2 CML Microcircuits, CMX867D2 Datasheet - Page 2

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

Low Power V.22 Modem
2001 Consumer Microcircuits Limited
Section
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Brief Description.................................................................................. 1
Block Diagram ..................................................................................... 3
Signal List ............................................................................................ 4
External Components.......................................................................... 5
1.4.1
1.4.2
General Description............................................................................. 9
1.5.1
1.5.2
1.5.3
1.5.4
1.5.5
1.5.6
1.5.7
1.5.8
1.5.9
1.5.10 C-BUS Interface..................................................................... 17
Application Notes .............................................................................. 34
1.6.1
1.6.2
Performance Specification................................................................ 36
1.7.1
1.7.2
Ring Detector Interface........................................................... 6
Line Interface........................................................................... 7
Tx USART .............................................................................. 10
FSK and DPSK Modulators .................................................. 11
Tx Filter and Equaliser.......................................................... 12
DTMF/Tone Generator .......................................................... 12
Tx Level Control and Output Buffer..................................... 12
Rx DTMF/Tones Detectors.................................................... 13
Rx Modem Filterering and Demodulation............................ 14
Rx Modem Pattern Detectors and Descrambler .................. 15
Rx Data Register and USART ............................................... 15
1.5.10.1
1.5.10.2
1.5.10.3
1.5.10.4
1.5.10.5
1.5.10.6
1.5.10.7
1.5.10.8
V.22 Calling Modem Application .......................................... 34
V.22 Answering Modem Application .................................... 35
Electrical Performance.......................................................... 36
1.7.1.1 Absolute Maximum Ratings..................................... 36
1.7.1.2 Operating Limits....................................................... 36
1.7.1.3 Operating Characteristics ........................................ 37
Packaging.............................................................................. 44
General Reset Command.............................. 17
General Control Register.............................. 19
Transmit Mode Register ............................... 21
Receive Mode Register ................................. 24
Tx Data Register............................................ 26
Rx Data Register ........................................... 26
Status Register.............................................. 27
Programming Register.................................. 30
CONTENTS
2
Page
CMX867
D/867/2