CMX7163 Datasheet, PDF (3/81 Pages) CML Microcircuits – No DSP or Codecs required

CMX7163 QAM Modem
CMX7163
Section
CONTENTS
Page
1 Brief Description ...................................................................................................................... 2
1.1 History........................................................................................................................... 6
2 Block Diagrams........................................................................................................................ 9
3 Signal List............................................................................................................................... 11
4 PCB Layout Guidelines and Power Supply Decoupling .................................................... 14
5 External Components............................................................................................................ 15
5.1 Xtal Interface............................................................................................................... 15
5.2 C-BUS Interface.......................................................................................................... 15
5.3 I/Q Output Reconstruction Filter ................................................................................. 16
5.4 I/Q Input Antialias Filter .............................................................................................. 16
5.5 GPIO Pins ................................................................................................................... 16
6 General Description............................................................................................................... 17
6.1 CMX7163 Features..................................................................................................... 17
6.2 Signal Interfaces (I/Q Tx and Rx) ............................................................................... 18
7 Detailed Descriptions ............................................................................................................ 19
7.1 Xtal Frequency............................................................................................................ 19
7.2 Host Interface ............................................................................................................. 19
7.2.1 C-BUS Operation ................................................................................................. 19
7.3 Function Image™ Loading.......................................................................................... 22
7.3.1 FI Loading from Host Controller ........................................................................... 22
7.3.2 FI Loading from Serial Memory............................................................................ 24
7.4 Device Control ............................................................................................................ 25
7.4.1 Normal Operation Overview................................................................................. 25
7.4.2 Basic Tx and Rx Operation .................................................................................. 26
7.4.3 Device Configuration (Using the Programming Register) .................................... 27
7.4.4 Device Configuration (Using dedicated registers) ................................................ 28
7.4.5 Interrupt Operation ............................................................................................... 28
7.4.6 Signal Control....................................................................................................... 28
7.4.7 Tx Mode ............................................................................................................... 29
7.4.8 Rx Mode ............................................................................................................... 31
7.4.9 Carrier Sense Mode ............................................................................................. 32
7.4.10 The Transmit Sequence....................................................................................... 34
7.4.11 CMX998 DC Offset Calibration ............................................................................ 34
7.4.12 Other Modem Modes ........................................................................................... 37
7.4.13 Data Transfer ....................................................................................................... 40
7.4.14 Data Buffering ...................................................................................................... 41
7.4.15 Raw Data Transfer ............................................................................................... 42
7.4.16 Formatted Data Transfer...................................................................................... 42
7.4.17 Pre-loading Commands ....................................................................................... 42
7.4.18 GPIO Pin Operation ............................................................................................. 42
7.4.19 Auxiliary ADC Operation ...................................................................................... 43
7.4.20 Auxiliary DAC/RAMDAC Operation ...................................................................... 44
7.4.21 SPI Thru-Port ....................................................................................................... 45
 2014 CML Microsystems Plc
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