PCT1789W DATA SHEET
PRELIMINARY
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CONTENTS
Exception Handling . . . . . . . . . . . . . . . . . . . . . . 27
PCT789A BASE I/O LOCATIONS . . . . . . . . . . . . . 28
PCT789A Base I/O Definition. . . . . . . . . . . . . . . 28
PCT789A PCI CONFIGURATION REGISTERS . . . . 29
PCI Configuration Register Summary . . . . . . . . 29
PCI Configuration Register Detailed Description 30
PCT789A CONTROL REGISTERS. . . . . . . . . . . . . 36
PCT789A Control Register Summary . . . . . . . . 36
PCT789A Control Register Detailed Description 36
PCT303DW CONTROL REGISTERS . . . . . . . . . . . 40
ELECTRICAL CHARACTERISTICS . . . . . . . . . . . . . . 49
PCT789A Electrical Characteristics . . . . . . . . . . 49
PCT789A Absolute Maximum Ratings . . . . 49
PCT789A DC Characteristics . . . . . . . . . . . 49
PCT303DW Electrical Characteristics . . . . . . . . 50
PCT303DWRecommendedOperatingConditions
50
PCT303DW Absolute Maximum Ratings. . . 50
PCT303DW Loop Characteristics . . . . . . . . 51
PCT303DW DC Characteristics. . . . . . . . . . 51
PCT303DW AC Characteristics. . . . . . . . . . 53
SWITCHING CHARACTERISTICS . . . . . . . . . . . . . . 54
General Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Serial Interface (DCE = 0) . . . . . . . . . . . . . . . . . 55
Serial Interface (DCE = 1, FSD = 0). . . . . . . . . . 56
Serial Interface (DCE = 1, FSD = 1). . . . . . . . . . 57
DIGITAL FILTER CHARACTERISTICS . . . . . . . . . . . 58
Digital FIR Filter Characteristics. . . . . . . . . . . . . 58
Digital IIR Filter Characteristics . . . . . . . . . . . . . 58
Filter Plot Diagrams . . . . . . . . . . . . . . . . . . . . . . 59
MECHANICAL DIMENSIONS. . . . . . . . . . . . . . . . . . 61
PCT789A Mechanical Dimensions. . . . . . . . . . . 61
PCT303DW Mechanical Dimensions . . . . . . . . . 62
APPENDIX: NET4 COUNTRY SUPPORT. . . . . . . . . 63
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Mode 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Ringer Impedance . . . . . . . . . . . . . . . . . . . . 63
Ringer Threshold . . . . . . . . . . . . . . . . . . . . . 63
Typical Application (NET4 Specifications). . 64
Typical Application Component Values . . . . 65
NET4 Line Interface Configurations. . . . . . . 67
PATENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
PCT789A FEATURES . . . . . . . . . . . . . . . . . . . . . .1
PCT789A HARDWARE FEATURES . . . . . . . . . . . . .1
PCT789A FUNCTIONAL DESCRIPTION . . . . . . . . . .1
PCT1789W FUNCTIONAL BLOCK DIAGRAM . . . . . .1
PCT303DW FEATURES. . . . . . . . . . . . . . . . . . . . .2
PCT303DW APPLICATIONS . . . . . . . . . . . . . . . . . .2
PCT303DW FUNCTIONAL DESCRIPTION. . . . . . . . .2
PCT303DW FUNCTIONAL BLOCK DIAGRAM . . . . . .2
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . .5
PCT303DW APPLICATION CIRCUITS . . . . . . . . . . .6
Typical Application (CRT21 International Design) 6
Typical Application Component Values. . . . . . . . 7
Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PCT789A PINOUT. . . . . . . . . . . . . . . . . . . . . . . . .9
PCT789A PIN DESCRIPTION . . . . . . . . . . . . . . . .10
PCT789A OPERATING MODES. . . . . . . . . . . . . . .13
PCT303DW PINOUTS . . . . . . . . . . . . . . . . . . . . .14
PCT303D Pinout . . . . . . . . . . . . . . . . . . . . . . . . 14
PCT303W Pinout. . . . . . . . . . . . . . . . . . . . . . . . 14
PCT303DW PIN DESCRIPTIONS . . . . . . . . . . . . .15
PCT303D Pin Description . . . . . . . . . . . . . . . . . 15
PCT303W Pin Descriptions. . . . . . . . . . . . . . . . 16
PIN COMPARISON OF PCT301L AND PCT303W. .16
PCT303DW FUNCTIONAL DESCRIPTION. . . . . . . .17
Isolation Barrier . . . . . . . . . . . . . . . . . . . . . . . . . 17
AC Termination . . . . . . . . . . . . . . . . . . . . . . . . . 17
DC Termination . . . . . . . . . . . . . . . . . . . . . . . . . 17
Ring Detection. . . . . . . . . . . . . . . . . . . . . . . . . . 18
Billing Tone Immunity . . . . . . . . . . . . . . . . . . . . 19
Lightning Test . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Safety and Isolation. . . . . . . . . . . . . . . . . . . . . . 19
Off-Hook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Digital Interface . . . . . . . . . . . . . . . . . . . . . . . . . 19
Clock Generation Subsystem . . . . . . . . . . . . . . 22
Programming the Clock Generator . . . . . . . 22
PLL Lock Times . . . . . . . . . . . . . . . . . . . . . 23
Setting Generic Sample Rates . . . . . . . . . . 23
Power Management . . . . . . . . . . . . . . . . . . . . . 24
Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . 25
On-Hook Line Monitor . . . . . . . . . . . . . . . . . . . . 25
Loop Current Monitor. . . . . . . . . . . . . . . . . . . . . 25
Gain Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Filter Selection. . . . . . . . . . . . . . . . . . . . . . . . . . 26
Revision Identification . . . . . . . . . . . . . . . . . . . . 26
In-Circuit Testing . . . . . . . . . . . . . . . . . . . . . . . . 26
PRELIMINARY
PC-TEL, Inc.
3
1789W0DOCDAT06A-0299
ETC [ ETC ]
