ICS87158AFT IDT, Integrated Device Technology Inc, ICS87158AFT Datasheet - Page 10

• Manufacturer Part Number: ICS87158AFT
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of ICS87158AFT

• Function: Clock Generator
• Operating Temperature (max): 85C
• Operating Temperature (min): 0C
• Package Type: SSOP
• Pin Count: 48
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

S
Figure 3 shows an example of the ICS87158 LVPECL to
HCSL Clock Generator schematic.
In this example, the ICS87158 is configured as follows:
PWR_DWN# = 1
Mult_[1:0] = 10, Rref = 475 , IREF = 2.32mA, I
SEL_[A,B,U] = 000, MREF = PECL
SEL_T = 0, Output Enable
87158AG
CHEMATIC
(U1-2)
0.1uF
C3
VDD=3.3V
3.3V LVPECL
ICS8431-01
ICS8431-11
(U1-11)
E
0.1uF
C4
XAMPLE
(U1-14)
Zo = 50
Zo = 50
0.1uF
C5
(U1-48)
200MHz, 3.3V
LVPECL
R1
50
50MHz,
LVCMOS/LVTTL
0.1uF
C5
R3
50
R2
50
VDD=3.3V
4, all HOST output = PECL
R8
28
F
(U1-13)
IGURE
R9
28
0.1uF
OH
C6
Zo = 50
Zo = 50
= 6*IREF
3. ICS87158 S
(U1-19)
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
U1
0.1uF
C7
VDD=3.3V
GND
VDD
VDD_R
PECL
nPECL
GND_R
VDD_M
MREF
nMREF
GND_M
VDD
GND
VDD_L
VDD
GND_L
SEL_T
MULT_0
MULT_1
VDD_L
GND_L
SEL_A
SEL_B
SEL_U
PWR_DWN#
www.idt.com
(U1-7)
85158
10
0.1uF
HOST_N1
HOST_N2
HOST_N3
HOST_N4
HOST_N5
HOST_N6
HOST_P1
HOST_P2
HOST_P3
HOST_P4
HOST_P5
HOST_P6
C8
CHEMATIC
ICS9222-01_REFCLK
ICS9222-01_REFCLK
GND_H
GND_H
GND_H
GND_H
VDD_H
VDD_H
VDD_H
VDD_H
2
GND_I
VDD_I
IREF
VDD
1-
TO
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
(U1-28)
Rref
475
-6, LVPECL-
L
0.1uF
C9
AYOUT
(U1-34)
÷1, ÷2, ÷4 C
R6
R7
0.1uF
C10
(U1-40)
100MHz,
HCSL
33
33
0.1uF
C9
TO
Zo = 50
Zo = 50
(U1-46)
-HCSL/LVCMOS
LOCK
0.1uF
C10
ICS87158
(U1-25)
R4
50
G
0.1uF
C10
REV. C JULY 25, 2010
R5
50
ENERATOR
(U1-23)
+
-
0.1uF
C10