87016AYT IDT, Integrated Device Technology Inc, 87016AYT Datasheet - Page 12

• Manufacturer Part Number: 87016AYT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Dividerr

Specifications of 87016AYT

• Number Of Clock Inputs: 2
• Output Frequency: 250MHz
• Output Logic Level: LVCMOS/LVTTL
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (max): 3.465V
• Package Type: TQFP
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / RoHS Status: Not Compliant

S
Figure 3 shows an application schematic example of the
ICS87016. This schematic provides examples of input and
output handling. The differential CLK1/nCLK1 input can ac-
cept various types of differential signal. This example shows
the ICS87016 input driven by a 3.3V LVPECL driver. Addi-
tional examples for the input driven by other types of drivers
87016AY
CHEMATIC
VCC
VDD
Logic Input Pin Examples
(U1-1)
3.3V
RU1
1K
RD1
SPARE
C9
0.1u
VDD=3.3V
LVCMOS
Set Logic
Input to '1'
To Logic
Input
pins
3.3V
Ro=7 Ohm
E
XAMPLE
LVPECL
(U1-48)
RS
C10
0.1u
Ro+Rs=50 Ohm
VCC
43
Zo = 50
Zo = 50
RU2
SPARE
RD2
1K
Zo = 50 Ohm
Set Logic
Input to '0'
To Logic
Input
pins
VDDO
R3
50
(U1-14)
C1
0.1u
F
R5
50
IGURE
R4
50
(U1-18)
VDD
3. A
C2
0.1u
ICS87016
10
11
12
1
2
3
4
5
6
7
8
9
U1
(U1-22)
PPLICATION
VDD
CLK0
DIV_SELA
DIV_SELB
DIV_SELC
DIV_SELD
CLK_ENA
CLK_ENB
CLK_ENC
CLK_END
nMR/OE
GND
www.idt.com
C3
0.1u
12
(U1-26)
are shown in the application section of this data sheet. The
single ended input CLK0 is driven by a 7Ω LVMCOS driver
through series termination. The ICS87016 outputs are
LVCMOS drivers. Series termination is shown in this sche-
matic. Additional LVCMOS termination approaches are shown
in the LVCMOS Termination Application Note.
S
CHEMATIC
C4
0.1u
(U1-30)
LVCMOS/LVTTL C
VDDO=3.3V, 2.5V or 1.8V
E
C5
0.1u
VDDOC
VDDOB
VDDOB
XAMPLE
GND
GND
GND
QC0
QC1
QB0
QB1
QB2
QB3
(U1-34)
36
35
34
33
32
31
30
29
28
27
26
25
C6
0.1u
(U1-38)
VDDO
R1
R2
C7
0.1u
L
OW
~43
~43
(U1-42)
LOCK
S
ICS87016
C8
0.1u
Zo = 50
Zo = 50
KEW
G
REV. A JULY 29, 2010
, 1-
ENERATOR
TO
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