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670M-03ILFT

P1-P3P4-P6P7-P7
DATASHEET
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER ICS670-03
IDT™ / ICS™
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER 1
ICS670-03 REV J 051310
Description
The ICS670-03 is a high speed, low phase noise, Zero
Delay Buffer (ZDB) which integrates IDT’s proprietary
analog/digital Phase Locked Loop (PLL) techniques. It is
identical to the ICS670-01, but with an increased maximum
output frequency of 210 MHz. Part of IDT’s ClockBlocks
TM
family, the part’s zero delay feature means that the rising
edge of the input clock aligns with the rising edges of the
outputs giving the appearance of no delay through the
device. There are two identical outputs on the chip. The
FBCLK should be used to connect to the FBIN. Each output
has its own output enable pin.
The ICS670-03 is ideal for synchronizing outputs in a large
variety of systems, from personal computers to data
communications to video. By allowing off-chip feedback
paths, the ICS670-03 can eliminate the delay through other
devices. The 15 different on-chip multipliers work in a
variety of applications. For other multipliers, including
functional multipliers, see the ICS527.
Features
• Packaged in 16-pin SOIC
• Pb (lead) free package, RoHS compliant
• Clock inputs from 5 to 210 MHz (see page 2)
• Patented PLL with low phase noise
• Output clocks up to 210 MHz at 3.3V
• 15 selectable on-chip multipliers
• Power down mode available
• Low phase noise: -124 dBc/Hz at 10 kHz
• Output enable function tri-states outputs
• Low jitter 15 ps one sigma
• Advanced, low power, sub-micron CMOS process
• Industrial temperature rated
• Operating voltage of 3.3 V or 5 V
Block Diagram
Divide by
N
Voltage
Controlled
Oscillator
FBCLK
OE1
Phase
Detector,
Charge
Pump, and
Loop Filter
FBIN
S3:S0
ICLK
CLK2
4
OE2
VDD
3
GND
3
External Feedback from FBCLK is recommended.
ICS670-03
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER ZDB AND MULTIPLIER
IDT™ / ICS™
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER 2
ICS670-03 REV J 051310
Pin Assignment Multiplier Select Table
Pin Descriptions
12
1
11
2
10
3
9
VDD
4
VDD
5
VDD
6
GND
7
CLK2
8
OE2
GND
S0
S1
FBCLK
S3
OE1
ICLK
16
15
14
13
FBIN
GND
S2
S3 S2 S1 S0 CLK2 (and FBCLK) Input Range (MHz)
0000 Low (Power down
entire chip)
-
0001 Input x1.333 18 - 157.5
0010 Input x6 5 - 35
0011 Input x1.5 16.67 - 140
0100 Input x3.333 7.5 - 63
0101 Input x2.50 10 - 84
0110 Input x4 6 - 52.5
0111 Input x1 25 - 210
1000 Input x2.333 11 - 90
1001 Input x2.666 10 - 78.75
1010 Input x12 5 - 17.5
1011 Input x3 8 - 70
1100 Input x10 5 - 21
1101 Input x5 6 - 42
1110 Input x8 5 - 26.25
1111 Input x2 12 - 105
Pin
Number
Pin
Name
Pin
Type
Pin Description
1 - 3 VDD Input Power supply. Connect both pins to the same voltage (either 3.3 V or 5 V).
4 CLK2 Output Clock output from VCO. Output frequency equals the input frequency times
multiplier.
5 OE2 Input Output clock enable 2. Tri-states the clock 2 output when low.
6 FBCLK Output Clock output from VCO. Output frequency equals the input frequency times
multiplier.
7 OE1 Input Output clock enable 1. Tri-states the feedback clock output when low.
8 FBIN Input Feedback clock input.
9 ICLK Input Clock input. Connect to a 5 - 210 MHz clock.
10 S3 Input Multiplier select pin 3. Determines outputs per table above. Internal pull-up.
11 S2 Input Multiplier select pin 2. Determines outputs per table above. Internal pull-up.
12 S1 Input Multiplier select pin 1. Determines outputs per table above. Internal pull-up.
13 S0 Input Multiplier select pin 0. Determines outputs per table above. Internal pull-up.
14 - 16 GND Power Connect to ground.
ICS670-03
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER ZDB AND MULTIPLIER
IDT™ / ICS™
LOW PHASE NOISE ZERO DELAY BUFFER AND MULTIPLIER 3
ICS670-03 REV J 051310
External Components
The ICS670-03 requires a minimum number of external components for proper operation. Decoupling capacitors of
0.01mF should be connected between VDD (pins 1, 2, and 3) and GND (pins 14, 15, and 16), as close to the device
as possible. A series termination resistor of 33Ω may be used to each clock output pin to reduce reflections.
Absolute Maximum Ratings
Stresses above the ratings listed below can cause permanent damage to the ICS670-03. These ratings, which are
standard values for IDT commercially rated parts, are stress ratings only. Functional operation of the device at these
or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods can affect product reliability. Electrical
parameters are guaranteed only over the recommended operating temperature range.
Recommended Operation Conditions
DC Electrical Characteristics
VDD=3.3V ±10%, Ambient temperature -40 to +85° C, unless stated otherwise
Item Rating
Supply Voltage, VDD 7 V
All Inputs and Outputs -0.5 V to VDD+0.5 V
Ambient Operating Temperature -40 to +85° C
Storage Temperature -65 to +150° C
Junction Temperature 125° C
Soldering Temperature 260° C
Parameter Min. Typ. Max. Units
Ambient Operating Temperature -40 +85 ° C
Power Supply Voltage (measured in respect to GND) +3.0 +5.5 V
Parameter Symbol Conditions Min. Typ. Max. Units
Operating Voltage VDD 3.0 5.5 V
Input High Voltage V
IH
2V
Input Low Voltage V
IL
0.8 V
Output High Voltage V
OH
I
OH
= -12 mA 2.4 V
Output Low Voltage V
OL
I
OL
= 12 mA 0.4 V
Output High Voltage,
CMOS level
V
OH
I
OH
= -4 mA VDD-0.4 V
Operating Supply Current IDD No Load 35 mA
P1-P3P4-P6P7-P7

670M-03ILFT

Mfr. #:
Buy 670M-03ILFT
Manufacturer:
IDT
Description:
Clock Buffer LOW NOISE ZERO DELAY BUFFER / MULTIPLIER
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