PEF22827EL-V11 Lantiq, PEF22827EL-V11 Datasheet - Page 55

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

Specifications of PEF22827EL-V11

• Lead Free Status / RoHS Status: Supplier Unconfirmed

3
This section outlines the functional description of the components in the PEF 22827 and
provides information on the JTAG Interface.
3.1
The digital transceiver performs digital functions for the VDSL modem. These functions
have been listed below according to the blocks contained in the main functional block
diagram (see figure 4):
•
•
•
•
In the PMC-TC block, the digital functions are carried out by the following blocks:
•
•
•
•
•
TPS-TC protocol adapts the user application to the VDSL modem format. TPs-TC is
implemented using the HDLC byte oriented framing. The interface in this block, includes
the xMII Interfaces and MII (MAC and PHY).
For details see:
3.2
The analog block performs digital-to-analog conversion (DAC) of the transmission data
received from Digital Block. Also, the analog block performs analog-to digital conversion
(ADC) of the received data and sends it to the digital block.
For details see,
3.3
The new line driver amplifies the signal received from the analog block
For details see,
3.4
The block diagram in
Integrated VDSL Modem-on-Chip.
Preliminary Data Sheet
Physical Medium Dependent (PMD) layer functions.
Physical Medium Specific Transmission Convergence (PMS-TC) functions.
Transport Protocol Specific Transmission Convergence (TPS-TC) functions .
Network interface functions.
QAM Tx Modulator
QAM Rx Demodulator
AGC Controller
Timing Recovery Unit
Digital and Analog AFE Control Interface
Functional Overview
Digital Block - Functional Overview
Analog Block - Functional Overview
Line Driver Block - Functional Overview
Functional Block Diagram
“Functional Description – Digital Block” on Page 58
“Functional Description – Analog Block” on Page 74
“Functional Description – Line Driver Block” on Page 80
Figure 4
shows the major functional blocks of the VDSL6100i
55
Functional Overview
Rev. 1.1, 2005-01-30
VDSL6100i
PEF 22827