CS8952T-CQ Cirrus Logic, CS8952T-CQ Datasheet - Page 4

• Manufacturer Part Number: CS8952T-CQ
• Description: 100BASE E-X AND 10BASE-T TRANSCEIVER
• Manufacturer: Cirrus Logic

INTRODUCTION
The CS8952T is a complete physical-layer trans-
ceiver for 100BASE-TX and 10BASE-T applica-
tions. It provides a Physical Coding Sub-layer for
communication with an external MAC (Media Ac-
cess Controller), a complete Physical Medium At-
tachment layer, and a 100BASE-TX and 10BASE-
T Physical Medium Dependent layer.
High Performance Analog
The highly integrated mixed-signal design of the
CS8952T eliminates the need for external analog
circuitry such as transmit or receive filters. The
CS8952T builds upon Cirrus Logic’s experience in
pioneering the high-volume manufacturing of
10BASE-T integrated circuits with “true” internal
filters. The CS8952T, CS8920, CS8904, and
CS8900 include fifth-order, continuous-time But-
terworth 10BASE-T transmit and receive filters, al-
lowing those products to meet 10BASE-T wave
shape, emission, and frequency content require-
ments without external filters.
Low Power Consumption
The CS8952T is implemented in low power
CMOS, consuming only 135 mA typically. Three
4
CIRRUS LOGIC ADVANCED PRODUCT DATABOOK
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver
low-power modes are provided to make the
CS8952T ideal for power sensitive applications.
Application Flexibility
The CS8952T’s digital interface and operating
modes can be tailored to efficiently support a wide
variety of applications. For example, the Media In-
dependent Interface (MII) supports 100BASE-TX
and 10BASE-T NIC cards, switches and routers.
Additionally, the low-latency “repeater” interface
mode minimizes data delay through the CS8952T,
facilitating system compliance with overall net-
work delay budgets. To support 10BASE-T appli-
cations, the CS8952T provides a 10BASE-T serial
port (Seven-wire ENDEC interface).
Typical Connection Diagram
Figure 1 illustrates a typical MII to CS8952T appli-
cation with twisted-pair interfaces. Refer to the De-
sign
information on power supply requirements and de-
coupling, crystal and magnetics requirements, and
twisted-pair transceiver connections.
Considerations
section
for
DS206TPP2
CS8952T
detailed