ICS85211AMI-03T IDT, Integrated Device Technology Inc, ICS85211AMI-03T Datasheet - Page 6

• Manufacturer Part Number: ICS85211AMI-03T
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS85211AMI-03T

• Number Of Outputs: 4
• Operating Supply Voltage (max): 3.465V
• Operating Temp Range: -40C to 85C
• Propagation Delay Time: 1ns
• Operating Supply Voltage (min): 3.135V
• Mounting: Surface Mount
• Pin Count: 8
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOIC N
• Duty Cycle: 53%
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Not Compliant

W
Figure 1 shows how the differential input can be wired to accept
single ended levels. The reference voltage V_REF = V
generated by the bias resistors R1, R2 and C1. This bias circuit
should be located as close as possible to the input pin. The ratio
S
Figure 2 shows a schematic example of ICS85211I-03. In this
example, the input is driven by an ICS HiPerClockS LVHSTL
driver. The decoupling capacitors should be physically located
85211AMI-03
CHEMATIC
IRING THE
1.8V
LVHSTL
ICS
HiPerClockS
LVHSTL Driv er
E
D
XAMPLE
IFFERENTIAL
Zo = 50 Ohm
Zo = 50 Ohm
F
R6
50
F
IGURE
I
NPUT TO
IGURE
Single Ended Clock Input
2. ICS85211I-03 LVHSTL B
1. S
A
R5
50
A
PPLICATION
CCEPT
INGLE
VDD=3.3V
5
6
7
8
U1
GND
nCLK
CLK
VDD
E
C1
0.1u
S
NDED
V_REF
INGLE
C1
0.1u
DD
/2 is
S
ICS85211-03
IGNAL
E
6
I
NDED
of R1 and R2 might need to be adjusted to position the V_REF in
the center of the input voltage swing. For example, if the input
clock swing is only 2.5V and V
and R2/R1 = 0.609.
near the power pin. For ICS85211I-03, the unused outputs need
to be terminated.
NFORMATION
D
D
nQ1
nQ0
1K
Q1
Q0
R1
1K
R2
IFFERENTIAL
RIVING
UFFER
VDD
L
4
3
2
1
EVELS
D
CLK
nCLK
S
IFFERENTIAL
CHEMATIC
R3
50
-
Zo = 50 Ohm
Zo = 50 Ohm
TO
E
-LVHSTL F
I
R4
50
XAMPLE
NPUT
Unused
Output
Need To
Be
Terminated
DD
R1
50
= 3.3V, V_REF should be 1.25V
ICS85211I-03
L
OW
R2
50
ANOUT
S
REV. B NOVEMBER 14, 2007
-
+
KEW
LVHSTL Input
, 1-
B
UFFER
TO
-2