KS8721SL-EVAL Micrel Inc, KS8721SL-EVAL Datasheet - Page 32

• Manufacturer Part Number: KS8721SL-EVAL
• Description: BOARD EVAL EXPERIMENT KS8721SL
• Manufacturer: Micrel Inc

Specifications of KS8721SL-EVAL

• Main Purpose: Interface, Ethernet Controller (PHY and MAC)
• Embedded: No
• Utilized Ic / Part: KSZ8721SL
• Primary Attributes: 1 Port, 100BASE-TX/100BASE-FX/10BASE-T
• Secondary Attributes: MII, RMII, Auto MDI, MDIX, >130 Meter Cable Driver, LDO, IEEE802.3u Compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 576-1010

KS8721BL/SL (3.3V Single Power Supply 10/100BaseTX/FX MII Physical Layer Transceiver)
Circuit Design Reference for Power Supply
Micrel’s integrated LDO technology, and thoughtful implementation allows the user to
save BOM cost on both existing and future designs with the use of the new KS8721BL/SL
single supply, single port 10/100 Ethernet PHY.
3.3V
24
7
VDDI/O
VDDI/O
2.5V
VDDC
13
Ferrite Bead
0.1u
2.5VPLL
IN
10u
- 32 -
VDD
MIC5255-
PLL
47
LDO
Ferrite Bead
2.5
8
GND
12
KS8721BL/SL Preliminary Rev 0.90
23
KS8721BL/SL
10u
OUT
35
0.1u
36
2.5VA
39 43
V
D
D
X
42
T
V
D
D
X
R
31
44
V
D
D
V
R
C
38
Aug, 2003
0.1u
10u