ICS83940AY-02LFT IDT, Integrated Device Technology Inc, ICS83940AY-02LFT Datasheet - Page 8

• Manufacturer Part Number: ICS83940AY-02LFT
• Description: IC FANOUT BUFFER 1:18 32-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Buffer (Distribution), Multiplexerr

Specifications of ICS83940AY-02LFT

• Number Of Circuits: 1
• Ratio - Input:output: 2:18
• Differential - Input:output: Yes/No
• Input: HCSL, LVCMOS, LVDS, LVHSTL, LVPECL, LVTTL, SSTL
• Output: LVCMOS, LVTTL
• Frequency - Max: 200MHz
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 200MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 83940AY-02LFT

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
83940AY-02
IRING THE
D
IFFERENTIAL
I
F
NPUT TO
IGURE
Single Ended Clock Input
1. S
A
A
PPLICATION
CCEPT
INGLE
E
C1
0.1u
D
S
NDED
V_REF
INGLE
IFFERENTIAL
CC
www.idt.com
/2 is
S
IGNAL
E
8
I
NDED
NFORMATION
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.
D
1K
R1
1K
R2
RIVING
VDD
L
-
TO
EVELS
CLK
nCLK
D
-LVCMOS/LVTTL F
IFFERENTIAL
I
NPUT
CC
= 3.3V, V_REF should be 1.25V
L
ICS83940-02
OW
S
ANOUT
KEW
REV. A AUGUST 4, 2010
, 1-
B
TO
UFFER
-18