ml6692 Microsemi Corporation, ml6692 Datasheet - Page 6

• Manufacturer Part Number: ml6692
• Description: 100base-tx Physical Layer With
• Manufacturer: Microsemi Corporation

ML6692
PIN DESCRIPTION
37 (36)
38 (37, 38)
39, 40 (39, 40) TPOUTN/P
41 (41, 42)
42 (43)
43 (44)
44, 45 (45, 46)
46 (47)
47 (48)
48, 49 (50, 51) 10BTTXINN/P 10BASE-T transmit waveform inputs. The ML6692 presents a linear copy of the input at
50 (53)
51 (54)
52 (55)
6
RTSET
AGND3
AGND2
AVCC2
LINK100
TPINN/P
CMREF
DUPLEX
10BTRCV
10BTLNKEN 10BASE-T link control TTL output. This output is low if the ML6692 is in 10BASE-T mode,
AVCC1
(Continued)
RTSET and AGND3 sets a precision constant bias current for the twisted pair transmit
level.
Analog ground.
Transmit twisted pair outputs. This differential current output pair drives FLP waveforms
and MLT-3 waveforms into the network coupling transformer in 100BASE-TX mode, or
10BASE-T waveforms in 10BASE-T mode.
Analog ground.
Analog +5V power supply.
100BASE-TX link activity open-drain output. LINK100 pulls low when there is 100BASE-
TX activity at TPINP/N in 100BASE-TX or auto-negotiation modes. This output is capable
of driving an LED directly.
Receive twisted pair inputs. This differential input pair receives 100BASE-TX, FLP, or
10BASE-T signals from the network.
Receiver common-mode reference output. This pin provides a common-mode bias point
for the twisted-pair media line receiver, typically (V
it’s low when auto-negotiation is reset (power-up, reset bit, restart auto-negotiation bit,
power down bit, or link loss) and follows the duplex status otherwise. It drives the
ML2653’s FD input, and prevents the ML2653 from attempting to transmit during auto-
negotiation. For 10BASE-T transceivers without pin-selectable MAU loopback disable,
DUPLEX can be used to disable the 10BASE-T transceiver’s receive and collision outputs
to the controller during auto-negotiation.
10BTTXINP/N to the TPOUTP/N outputs when the ML6692 functions in 10BASE-T mode.
Signals presented to these pins must be centered at V
amplitude of ±0.25V.
10BASE-T receive activity TTL input. The external 10BASE-T transceiver drives this pin
high to indicate 10BASE-T packet reception from the network.
or if the auto-negotiation function indicates to the 10BASE-T PMA to scan for carrier. This
output is high if the 10BASE-T PMA should be disabled.
Analog +5V power supply.
Transmit level bias resistor input. An external 2.49kW, 1% resistor connected between
Full duplex enabled TTL output. This output is high during the auto-negotiation process,
CC
CC
– 1.26)V.
/2 and have a single ended