PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 4

• Manufacturer Part Number: PEF22827EL-V11
• Manufacturer: Lantiq

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Preface
The PEF 22827 is an integrated VDSL modem-on-chip. It combines all the required
functionality for standard 4-band VDSL over a twisted pair. This modem-on-chip includes
a digital data transceiver supporting Ethernet interface, an analog front end (AFE)
handling the VDSL QAM functionality and an internal line driver to provide transmission
level to the line.
System functionality complies with ITU-T and ETSI standards for VDSL.
About This Document
This data sheet is organized as follows:
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In addition, for convenience, the following sections are included after the last chapter:
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Preliminary Data Sheet
Product Overview
applications.
Pin and Signal
layout, lists all pins, and shows pin to signal assignment in different operation modes.
Functional
PEF 22827 as a whole, followed by the functions of the digital, analog and line driver
blocks, in separate sections. Block diagrams and firmware options are included.
Operation – Digital
block, which controls the analog block. The description includes configuration pins,
the system clock, EEPROM, internal RAM management, and the boot process.
Operation – Line Driver
driver shut down procedure.
Interfaces, starting on
management, network and EOC interfaces, and the I
The
Register Descriptions – Analog Block
memory mapping and registers for the digital and analog blocks, respectively. These
sections include lists of registers by address and by type, and links to the detailed
description of each register.
Electrical Characteristics -
ratings, recommended operating conditions, heat dissipation parameters and AC/DC
characteristics for the integrated chip first, and then for the digital, analog and line
driver blocks.
Package Outline
A
A
An
Terminology
References
Index
Memory and Register Descriptions – Digital Block
– to help you find specific information.
Overview, starting on
list – to help you find information not in this data sheet.
Descriptions, starting on
section – to help you define acronyms and expressions.
on
Block, starting on
on
Page
Page
Page
describes the computation of line driver gain and the line
290.
Overview, starting on
134, includes the JTAG interface (boundary scan),
19, lists the main features and suggests typical
Page
Page
4
sections, starting on
Page
81, describes the operation of the digital
55, describes the functions of the
22, shows the logic symbol and pin
2
Page
C interface for EEPROM.
266, specifies maximum
Page
and
Rev. 1.1, 2005-01-30
Memory and
171, describe
VDSL6100i
PEF 22827