ICS670M-03IT IDT, Integrated Device Technology Inc, ICS670M-03IT Datasheet - Page 5

• Manufacturer Part Number: ICS670M-03IT
• Description: IC BUFFER/MULTIPLIER ZD 16-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: ClockBlocks™r
• Type: Clock Synchronizer, Zero Delay Bufferr

Specifications of ICS670M-03IT

• Pll: Yes
• Input: Clock
• Output: CMOS
• Number Of Circuits: 1
• Ratio - Input:output: 1:1
• Differential - Input:output: No/No
• Frequency - Max: 210MHz
• Divider/multiplier: No/Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC
• Frequency-max: 210MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 670M-03IT

Figure 1. Skew from ICLK to CLK2
Adjusting Input/Output Skew
Figure 2. Phase Noise at 125 MHz out, 25 MHz clock input
IDT™ / ICS™ LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER 5
ICS670-03
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER
The data in Figure 1 can be used to adjust individual circuit characteristics and achieve the minimum possible skew
between ICLK and CLK2. With a 125 MHz output, for example, having a total load capacitance of 15 pF will result
in nearly zero skew between ICLK and CLK2. Note that the load
capacitance includes board trace capacitance, input capacitance of the load being driven by the ICS670-03, and
any additional capacitors connected to CLK2.
-100
-120
-140
-20
-40
-60
-80
10.E+0
0
-100
-200
-300
-400
100.E+0
300
200
100
0
25
, with change in load capacitance (VDD = 3.3V)
1.E+3
Skew (ps) 20 pF
50
ICS670 Phase noise
CLK2 Frequency (MHz)
offset frequency
75
10.E+3
100
Skew (ps) 10 pF
(VDD = 3.3V)
100.E+3
125
150
1.E+6
ICS670-03
ZDB AND MULTIPLIER
10.E+6
REV J 051310