PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 292

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

11
A
Absolute Maximum Ratings
AC Characteristics
Access to U-Interface
Activation
ADC
Analog Characteristics
ANSI
Application Hints
B
BAC Bit
Basic Standards
Bellcore
Block Diagram
Semiconductor Group
Examples
in µP-NT Modes
in NT-Auto Activation Mode
in the µP-NT Mode
Initiated by LT
Initiated by LT with Repeater
Initiated by LT with U Active
Initiated by TE
Initiated by TE with Repeater
Initiated by TE with U Active
Partial
with ACT-Bit Status Ignored
Analog Loop-Back Function
Analog-to-Digital Converter
Awake Block
Clocks
Control Block
Digital-to-Analog Converter
EOC Processor
in µP Mode
in Stand Alone Mode
Line Driver
Line Interface Unit
Microprocessor Interface
Microprocessor Mode
65
297
198
297
Index
130
83
241
58
66
58
297
248
65
64
269
126
128
64
298
106
266
65
142
59
58
262
90
65
65
142
66
131
127
132
135
136
292
Block Error Counters
BT
C
C/I Channel
C/I Channel Example
Chip Identification
Clock Generation
Clocks
Cold Start
COT Application
Power Controller Interface
Power Status
Receiver
S/G Bit and BAC bit Control
Single Bits Processor
Special Functions
System Interface Unit
Test Block
Transceiver Core
Transmitter Buffer
U Transceiver
U-Interface
Undervoltage Detection
FEBE
NEBE
Test Overview
Testing
Abbreviation
Codes
Programming Example
COT Mode
LT Repeater
LT-Mode
Microprocessor Clock Output
NT- and TE-Mode
NT-PBX
Repeater Modes
CLS Timing
Duty Cycle
Jitter of Master Clock
Pin SG Timing
Timing
297
146
179
178
224
281
75
180
86
65
84
95
282
88
67
284
23
225
88
83
92
193
61
183
286
178
87
232
60
64
62
85
Data Sheet 01.99
282
64
62
232
92
PEB 2091
PEF 2091
91
90
89
Index