VSC8601XKN Vitesse Semiconductor Corp, VSC8601XKN Datasheet - Page 89

• Manufacturer Part Number: VSC8601XKN
• Description: IC PHY 10/100/1000 64-EP-LQFP
• Manufacturer: Vitesse Semiconductor Corp
• Type: PHY Transceiverr

Specifications of VSC8601XKN

• Number Of Drivers/receivers: 1/1
• Protocol: Gigabit Ethernet
• Voltage - Supply: 2.5V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP Exposed Pad, 64-eLQFP, 64-HLQFP
• Case: TQFP
• Dc: 06+
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 907-1028

Table 83.
6.2.6
Table 84.
Revision 4.1
September 2009
Miscellaneous Pins (continued)
Power Supply
The following table lists the device power supply pins.
Power Supply Pins
1. Exposed pad is on the bottom of the package.
Pin
47
40
41
42
50
49
44
46
48
Pin
1, 39, 51, 57, 62
45
11
16, 19, 25, 33
4, 15, 34
52
17 , PAD
(1)
Name
PLLMODE
LED2
LED1
LED0
REF_REXT
REF_FILT
REG_EN
REG_OUT
NC
Name
VDD33
VDDREG
VDDIOMICRO
VDDIOMAC
VDD12
VDD12A
VSS
Type
A
A
A
NC
BIAS
BIAS
BIAS
O
I
I
Description
PLL mode input select. Sampled on power-up or
reset. If PLLMODE is low, then REFCLK must be
25 MHz. If PLLMODE is high, then REFCLK must be
125 MHz.
If a crystal or an external 25 MHz clock is used,
PLLMODE must be pulled low. If an external 125 MHz
clock is used, PLLMODE must be pulled high.
LED direct-drive outputs. All LEDs pins are active-low.
For more information about LED operation, see
Interface,”
Reference external connects to an external 2 kΩ
(1%) resistor to analog ground.
Reference filter connects to an external 1 μF capacitor
to analog ground.
Regulator enable. Active high input enables the
on-chip switching regulator and generates a 1.2 V
supply voltage.
Regulator output. When REG_EN is enabled,
REG_OUT supplies a 1.2 V supply that has been
regulated from the 3.3 V supply. When connecting to
the 1.2 V supply pins, additional requirements are a
4.7 μ H to 5.1 μ H inductor in series as well as 10 μ F
and 1 μ F capacitors to ground. The on-chip switching
regulator is optional, and 1.2 V power can be
supplied externally.
No connects. Do not connect them together or to
ground. Leave these pins unconnected (floating).
Type
3.3 V
3.3 V
3.3 V
2.5 V
3.3 V
2.5 V
1.2 V
1.2 V
0 V
Description
General 3.3 V supply.
On-chip switching regulator 3.3 V supply.
I/O micro power supply.
I/O MAC power supply.
Internal digital core voltage.
1.2 V analog power requiring additional
PCB power supply filtering.
General device ground.
page 28.
VSC8601 Datasheet
Pin Descriptions
Page 89
“LED