4©2016 Integrated Device Technology, Inc Revision B April 20, 2016
843N571I Data Sheet
Function Tables
Table 3A. REFSEL Function Table
Table 3B. FREQSEL Function Table
Table 3C. FORCE_LOW Function Table
Inputs Input Source
REFSEL
0REFCLK
1 (default) XTAL_IN, XTAL_OUT
Inputs Output Frequency (MHz)
FREQSEL QB, nQB QC, nQC
0125125
1100100
Float (default) 125 100
Inputs Output Frequency (MHz)
FORCE_LOW QD0
0 (default) 33.33
1 Disabled
5©2016 Integrated Device Technology, Inc Revision B April 20, 2016
843N571I Data Sheet
Absolute Maximum Ratings
NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress
specifications only. Functional operation of product at these conditions or any conditions beyond those listed in the DC Characteristics or AC
Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.
DC Electrical Characteristics
Table 4A. Power Supply DC Characteristics, V
CC
= 3.3V ± 0.3V, V
EE
= 0V, T
A
= -40°C to 85°C
Table 4B. LVCMOS/LVTTL DC Characteristics, V
CC
= 3.3V ± 0.3V, T
A
= -40°C to 85°C
NOTE 1: Outputs terminated with 50 to V
CC
/2. See Parameter Measurement Information, Output Load Test Circuit diagrams.
Item Rating
Supply Voltage, V
CC
3.63V
Inputs, V
I
XTAL_IN
Other Inputs
0V to 2V
-0.5V to V
CC
+ 0.5V
Outputs, I
O
(LVCMOS) -0.5V to V
CC
+ 0.5V
Outputs, I
O
(LVPECL)
Continuous Current
Surge Current
50mA
100mA
Package Thermal Impedance,
JA
37.7C/W (0 mps)
Storage Temperature, T
STG
-65C to 150C
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
CC
Power Supply Voltage 3.0 3.3 3.6 V
I
EE
Power Supply Current No Load 250 mA
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
IH
Input High
Voltage
REFSEL,
FORCE_LOW
2V
CC
+ 0.3 V
FREQSEL V
CC
- 0.4 V
V
IL
Input Low
Voltage
REFSEL,
FORCE_LOW
-0.3 0.8 V
FREQSEL 0.4 V
V
IM
Input
Medium
Voltage
FREQSEL V
CC
/2 - 0.1 V
CC
/2 + 0.1 V
I
IH
Input
High
Current
REFCLK,
FREQSEL,
FORCE_LOW
V
CC
= V
IN
= 3.6V 150 µA
REFSEL V
CC
= V
IN
= 3.6V 5 µA
I
IL
Input
Low
Current
REFCLK,
FORCE_LOW
V
CC
= 3.6V, V
IN
= 0V -5 µA
REFSEL,
FREQSEL
V
CC
= 3.6V, V
IN
= 0V -150 µA
V
OH
Output High Voltage; NOTE 1 V
CC
= 3.3V ± 0.3V 2.3 V
V
OL
Output Low Voltage; NOTE 1 V
CC
= 3.3V ± 0.3V 0.8 V
6©2016 Integrated Device Technology, Inc Revision B April 20, 2016
843N571I Data Sheet
Table 4C. LVPECL DC Characteristics, V
CC
= 3.3V ± 0.3V, V
EE
= 0V, T
A
= -40°C to 85°C
NOTE 1: Outputs terminated with 50 to V
CC
– 2V.
Table 5. Crystal Characteristics
AC Electrical Characteristics
Table 6A. LVPECL AC Characteristics, V
CC
= 3.3V ± 0.3V, V
EE
= 0V, T
A
= -40°C to 85°C
NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is
mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium
has been reached under these conditions
NOTE 1: Refer to the Phase Noise Plot.
NOTE 2: This parameter is defined in accordance with JEDEC Standard 65.
NOTE 3: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the differential
crosspoints.
Symbol Parameter Test Conditions Minimum Typical Maximum Units
V
OH
Output High Voltage; NOTE 1 V
CC
– 1.4 V
CC
– 0.8 V
V
OL
Output Low Voltage; NOTE 1 V
CC
– 2.0 V
CC
– 1.6 V
V
SWING
Peak-to-Peak Output Voltage
Swing
0.6 1.0 V
Parameter Test Conditions Minimum Typical Maximum Units
Mode of Oscillation Fundamental
Frequency 25 MHz
Equivalent Series Resistance (ESR) 50
Shunt Capacitance 7pF
Symbol Parameter Test Conditions Minimum Typical Maximum Units
f
IN
Input Frequency 25 MHz
f
OUT
Output Frequency 100 156.25 MHz
tjit()
RMS Phase Jitter (Random)
NOTE 1
156.25MHz f
OUT
, 25MHz crystal
Integration Range:
12kHz – 20MHz
0.233 ps
125MHz f
OUT
, 25MHz crystal
Integration Range:
12kHz – 20MHz
0.283 ps
100MHz f
OUT
, 25MHz crystal
Integration Range:
12kHz – 20MHz
0.299 ps
tsk(o) Output Skew; NOTE 2, 3 Measured on the Rising Edge 40 ps
PSNR
Power
Supply Noise
Reduction
Pin 40
(V
CC
)
From DC to 8MHz,
FORCE_LOW = HIGH
-75 dB
Pin 40
(V
CC
)
From DC to 3MHz,
FORCE_LOW = LOW
-80 dB
t
R
/ t
F
Output Rise/Fall Time 20% to 80% 150 550 ps
odc Output Duty Cycle 48 52 %

843N571BKILF

Mfr. #:
Manufacturer:
IDT
Description:
Clock Synthesizer / Jitter Cleaner FemtoClock NG Clock Synthesizer
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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