General
Description :
The IP
108A
is a highly integrated octal PHY transceiver for 10Base-T,
100Base-TX and 100Base-FX Fast Ethernet applications. This device is
implemented with advanced 0.18um CMOS process technology for low
power consumption. For the high port count switch design such as 16
or 24 or 32-port, the IP
108A
can simplify the system design and ensure the targeted performance..
IP
108A
can be programmed to operate in various modes through either
hardware (hardware strapping pin) or software control (registers
setting via SMI). It also supports SMII and SS-SMII interface to MAC
controller to reduce the pin- count.
The IP
108A
contains eight independent 10/
100M
PHY Transceiver and includes encoder, decoder, line driver, ADC, DAC,
DSP and PLL circuits for each port. The IP
108A
enters the Automatic Power Saving Mode to lower the power
consumption once the link partner is disconnected. The IP
108A
just needs an external OSC or crystal as the clock source,
simplifying the system design. Besides the features described above,
the driving capability of IP
108A
can be trimmed to minimize the EMI effect by the advanced slew rate
control technology.
Feature :
- Integrates eight-port
10Base-T, 100Base-TX and 100Base-FX transceivers in a single
chip.
- Flexible 8-port 100Base-FX
configuration.
- Supports auto crossover
function and force MDIX function.
- Supports auto-negotiation
function.
- Flexible functional
configuration through either pin setting or register
programming.
- Supports SMII and SS-SMII
interfaces.
- Supports BaseLine Wander (BLW)
compensation.
- Provides direct drive mode
and serial data latch LED display mode.
- Embeds DSP-based PHY
Transceiver technology to improve the cable driving performance
- Adjustable
current driving capabilities
- Adjustable
SMII/SS-SMII interface timing
- Provides power-on LED
diagnostic function
- Power supply: Selectable
3.3V/1.95V for I/O 1.95V power supply for core
- Supports Automatic Power
Saving (APS) Mode
- Requires only one external
clock source
- 0.18u CMOS technology
- 128Pin PQFP package
- Support Lead Free package
(Please refer to the Order Information)
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