KS8721B Micrel Inc, KS8721B Datasheet - Page 22

• Manufacturer Part Number: KS8721B
• Description: Special Function IC
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KS8721B

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Number Of Drivers/receivers: 1/1
• Protocol: MII, RMII
• Voltage - Supply: 2.375 V ~ 2.625 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: 576-1006 - BOARD EVAL EXPERIMENT KS8721B
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant

KS8721B/BT
Absolute Maximum Ratings
Supply Voltage
Input Voltage ............................................... –0.5V to +4.0V
Output Voltage ............................................ –0.5V to +4.0V
Lead Temperature (soldering, 10 sec.) ..................... 270°C
Storage Temperature (T
Electrical Characteristics
V
Symbol
Total Supply Current (including TX output driver current)
I
I
I
I
TTL Inputs
V
V
I
TTL Outputs
V
V
|I
100BaseTX Receive
R
100BaseTX Transmit (measured differentially after 1:1 transformer)
V
V
t
100BaseTX Transmit (measured differentially after 1:1 transformer)
V
Note 1.
Note 2.
Note 3.
Note 4.
M9999-041405
DD1
DD2
DD3
DD5
IN
r
OZ
, t
DD
IH
IL
OH
OL
O
IMB
SET
IN
(V
V
(V
t
|
DD_RX
= 2.5V ±5%; T
DDC
DDIO
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating. Unused inputs must always be tied to an appropriate logic voltage level
(Ground to V
No HS (heat spreader) in package.
Specification for packaged product only.
, V
) .................................................... –0.5V to +4.0V
) ................................................... –0.5V to +3.0V
DD_PLL
Parameter
Normal 100BaseTX
Normal 10BaseT (50% utilization)
Power Saving Mode 100BaseTX
Power Down Mode
Input High Voltage
Input Low Voltage
Input Current
Output High Voltage
Output Low Voltage
Output Tr-State Leakage
RX+/RX– Differential Input
Resistance
Propagation Delay
Peak Differential Output Voltage
Output Voltage Imbalance
Rise/Fall Time
Rise/Fall Time Imbalance
Duty Cycle Distortion
Overshoot
Reference Voltage of ISET
Propagation Delay
Jitters
A
, V
DD
= 0°C to +70°C; unless noted; bold values indicate –40°C ≤ T
).
DD_TX
S
) ....................... –55°C to +150°C
, V
DD_RCV
(Note 4)
,
(Note 1)
Condition
I
from magnetics to RDTX
50Ω from each output to V
50Ω from each output to V
from TDTX to magentics
V
I
OH
OL
IN
= 4mA
= GND ~ V
= –4mA
22
DD
Operating Ratings
Supply Voltage
Ambient Temperature (T
Package Thermal Resistance (Note 3)
(V
V
(V
TQFP (θ
SSOP (θ
DD_RX
DDC
DDIO
, V
) ............... +2.375V to +2.625V or +3.0V to +3.6V
DD
DD
) ........................................... +2.375V to +2.625V
JA
DD_PLL
JA
A
≤ +85°C; unless noted.
) ..................................................... 69.64°C/W
) ..................................................... 42.91°C/W
, V
DD_TX
A
) ........................... –0°C to +70°C
(Note 2)
V
V
, V
DD
DD
–0.4
0.95
Min
–0.8
–10
DD_RCV
3
0
(I/O)
(I/O)
,
0.75
Typ
107
144
0.7
47
50
45
4
8
Max
1.05
±0.5
110
0.8
0.4
0.5
1.4
10
10
60
2
5
5
Micrel, Inc.
April 2005
ns
Units
mA
mA
mA
mA
µA
µA
kΩ
ns
ns
ns
ns
ns
(pk-pk
%
%
V
V
V
V
V
V