ICS87322BYIT IDT, Integrated Device Technology Inc, ICS87322BYIT Datasheet - Page 9

• Manufacturer Part Number: ICS87322BYIT
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Clock Dividerr

Specifications of ICS87322BYIT

• Number Of Clock Inputs: 2
• Mode Of Operation: Differential
• Output Frequency: 750MHz
• Output Logic Level: ECL/LVPECL
• Operating Supply Voltage (min): -3/3V
• Operating Supply Voltage (typ): -3.3/3.3V
• Operating Supply Voltage (max): -3.8/3.8V
• Package Type: LQFP
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Signal Type: CML/LVDS/LVPECL/SSTL
• Mounting: Surface Mount
• Pin Count: 52
• Lead Free Status / RoHS Status: Not Compliant

S
Figure 5 shows a schematic example of the ICS87322BI. In this
example, the CLK0/nCLK0 input is selected. The input is driven
by an LVPECL driver. All banks are set at ÷2. The decoupling
87322BYI
CHEMATIC
3.3V
LVPECL
RU3
SP
RD3
1K
(U1-1)
VCC
0.1uF
C1
VCC
E
RU4
1K
RD4
SP
Zo = 50
Zo = 50
XAMPLE
(U1-14)
RU5
1K
RD5
SP
0.1uF
C2
R1
50
RU6
1K
RD6
SP
(U1-27)
R2
50
R3
50
C3
RU7
1K
RD7
SP
0.1uF
DIV_SELA
DIV_SELB
CLK_SEL
DIV_SELC
DIV_SELD
(U1-30)
Bypass capacitors located near the power pins
DIV_SELC
DIV_SELD
DIV_SELA
DIV_SELB
SP = Spare (i.e. not intstalled)
CLK_SEL
0.1uF
F
C4
IGURE
(U1-39)
10
11
12
13
1
2
3
4
5
6
7
8
9
5. ICS87322BI S
VCC
MR
DIV_SELA
DIV_SELB
CLK0
nCLK0
CLK_SEL
CLK1
nCLK1
nc
DIV_SELC
DIV_SELD
VEE
C5
0.1uF
(U1-40)
www.idt.com
C6
0.1uF
(U1-47)
9
capacitors should be physically located near the power pin.
For ICS87322BI, the unused outputs can be left floating.
0.1uF
C7
CHEMATIC
3.3V LVPECL/ECL C
(U1-52)
VCCO
VCCO
VCCO
nQC0
nQC1
nQC2
nQC3
QC0
QC1
QC2
QC3
ICS87322I
nc
nc
C8
VCC
U1
0.1uF
E
XAMPLE
39
38
37
36
35
34
33
32
31
30
29
28
27
Zo = 50
Zo = 50
Zo = 50
Zo = 50
L
ICS87322BI
OW
LOCK
R4
50
R8
50
S
REV. C OCTOBER 13, 2010
KEW
R6
50
R9
50
G
R5
50
R7
50
ENERATOR
, ÷1/÷2,
+
-
+
-