ICS8737AGI-11 IDT, Integrated Device Technology Inc, ICS8737AGI-11 Datasheet - Page 7

• Manufacturer Part Number: ICS8737AGI-11
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Dividerr

Specifications of ICS8737AGI-11

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: 650MHz
• Output Logic Level: LVPECL
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / RoHS Status: Not Compliant

W
Figure 2 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
8737AGI-11
IRING THE
D
IFFERENTIAL
I
NPUT TO
F
IGURE
A
2. S
A
CLK_IN
CCEPT
PPLICATION
INGLE
0.1uF
C1
E
S
D
NDED
INGLE
IFFERENTIAL
CC
www.idt.com
/2 is
S
IGNAL
E
R1
1K
V_REF
R2
1K
NDED
7
I
ratio 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
be 1.25V and R2/R1 = 0.609.
NFORMATION
D
V
RIVING
CC
L
+
-
-
EVELS
TO
D
- 3.3V LVPECL C
IFFERENTIAL
I
NPUT
ICS8737I-11
L
OW
LOCK
CC
= 3.3V, V_REF should
S
REV. C AUGUST 4, 2010
KEW
G
ENERATOR
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