ICS8624BYLF IDT, Integrated Device Technology Inc, ICS8624BYLF Datasheet - Page 11

• Manufacturer Part Number: ICS8624BYLF
• Description: IC BUFFER ZD 1-5 HSTL 32-LQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Fanout Distribution, Multiplexer , Zero Delay Bufferr

Specifications of ICS8624BYLF

• Pll: Yes with Bypass
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: HSTL
• Number Of Circuits: 1
• Ratio - Input:output: 2:5
• Differential - Input:output: Yes/Yes
• Frequency - Max: 700MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 32-LQFP
• Frequency-max: 700MHz
• Number Of Elements: 1
• Supply Current: 120mA
• Pll Input Freq (min): 31.25MHz
• Pll Input Freq (max): 700MHz
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Package Type: LQFP
• Output Frequency Range: Up to 700MHz
• Operating Supply Voltage (min): 3.135V
• Operating Supply Voltage (max): 3.465V
• Operating Temperature Classification: Commercial
• Pin Count: 32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 8624BYLF

Schematic Example
The schematic of the ICS8624 layout example is shown in Figure 4A.
The ICS8624 recommended PCB board layout for this example is
shown in Figure 4B. This layout example is used as a general
Figure 4A. ICS8624 HSTL Zero Delay Buffer Schematic Example
ICS8624 Data Sheet
ICS8624BY REVISION E OCTOBER 6, 2009
VDD
RU2
SP
RD2
1K
3.3V
3.3V PECL Driver
RU3
1K
RD3
SP
RU4
1K
RD4
SP
Zo = 50 Ohm
Zo = 50 Ohm
(155.5 MHz)
RU5
SP
RD5
1K
CLK_SEL
PLL_SEL
SEL0
SEL1
SP = Spare (i.e. not installed)
SP = Space (i.e. not intstalled)
R8
50
R10
50
VDD=3.3V
VDDO=1.8V
DIV_SEL[1:0] = 01
R9
50
SEL0
SEL1
CLK_SEL
VDD
8624
1
2
3
4
5
6
7
8
U1
SEL0
SEL1
CLK0
nCLK0
CLK1
nCLK2
CLK_SEL
MR
R2B
50
VDDA
0.01u
R2A
50
C11
VDDO
VDDO
nQ3
nQ2
nQ1
11
Q3
Q2
Q1
VDDO
guideline. The layout in the actual system will depend on the selected
component types, the density of the components, the density of the
traces, and the stack up of the P.C. board.
24
23
22
21
20
19
18
17
10u
C16
10
R7
155.5 MHz
LOW SKEW, 1-TO-5 DIFFERENTIAL-TO-HSTL ZERO DELAY BUFFER
VDD
Bypass capacitor located near the power pins
(U1-16)
(U1-9)
0.1uF
C2
0.1uF
C1
Zo = 50 Ohm
Zo = 50 Ohm
VDD
VDDO
(U1-32)
(U1-17)
0.1uF
C6
©2009 Integrated Device Technology, Inc.
0.1uF
C4
R4A
50
(U1-24)
R4B
50
+
-
0.1uF
C5
(U1-25)
LVHSTL_input
0.1uF
C7