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NB3N3001DTG

P1-P3P4-P6P7-P8
© Semiconductor Components Industries, LLC, 2008
August, 2008 − Rev. 2
1 Publication Order Number:
NB3N3001/D
NB3N3001
3.3 V 106.25 MHz/ 212.5 MHz
PureEdge Clock Generator with
LVPECL Differential Output
Description
The NB3N3001 is a low−jitter, dual−rate PLL−synthesized clock
generator. It accepts a standard 26.5625 MHz fundamental mode AT cut
parallel resonant crystal as the reference source for its integrated crystal
oscillator and low noise phase−locked loop (PLL) and produces user
selectable clock frequencies of either 106.25 MHz or 212.5 MHz.
In addition, the PLL circuitry will generate a 50% duty cycle
square−wave through a pair of differential LVPECL clock outputs.
Typical phase jitter at 106.25 MHz is 0.3 ps RMS from 637 kHz to
10 MHz.
The LVPECL output drivers can be disabled to high impedance with
the OE pin set LOW. The NB3N3001 operates from a single +3.3 V
supply, and is available in both plastic package and die form. The
operating temperature range is from −40°C to +85°C.
The NB3N3001 device provides the optimum combination of low
cost, flexibility, and high performance which makes it ideal for
Fibre−Channel applications.
Features
• PureEdge Clock Family Provides Accuracy and Precision
• Selectable Output Frequency of 106.25 MHz or 212.5 MHz
• Crystal Oscillator Interface Designed for a 26.5625 MHz Crystal
• Fully Integrated Phase−Lock−Loop with Internal Loop Filter
• Differential 3.3 V LVPECL Outputs
• Exceeds Bellcore and ITU Jitter Generation Specification
• RMS Phase Jitter @ 106.25 MHz, using a 26.5625 MHz Crystal
(637 kHz − 10 MHz): 0.3 ps (Typical)
• RMS Phase Noise at 106.25 MHz
Phase Noise:
Offset Noise Power
100 Hz −108 dBc/Hz
1 kHz −122 dBc/Hz
10 kHz −135 dBc/Hz
100 kHz −135 dBc/Hz
• Operating Range: V
CC
= 3.135 V to 3.465 V
• −40°C to +85°C Ambient Operating Temperature
• Small Footprint 8−pin TSSOP Package
• This is a Pb−Free Device
Figure 1. Logic Diagram
Phase
Detector
Charge
Pump
N =B8
orB4
M = B32
Crystal
Oscillator
Q
Q
X
IN
X
OUT
VCO
850 MHz
26.5625 MHz
LVPECL
Output
212.5 MHz
or
106.25 MHz
FSEL
MARKING
DIAGRAM
A = Assembly Location
Y = Year
WW = Work Week
G = Pb−Free Package
TSSOP−8
DT SUFFIX
CASE 948S
http://onsemi.com
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
ORDERING INFORMATION
301
YWW
AG
NB3N3001
http://onsemi.com
2
Figure 2. Pinout (Top View)
Q
1
2
3
4
8
7
6
5
VCCA
VEE
XOUT
XIN
VCC
Q
FSEL
NB3N3001
FSEL Output Frequency (MHz)
Table 1. Output Frequency Select
NOTE: Input crystal = 26.5625 MHz
106.250
212.51
Table 2. PIN DESCRIPTION
Pin Symbol Type Description
1 V
CCA
Power Positive analog power supply pin. Connected to V
CC
with filter components (See Figure 8).
2 V
EE
Power Negative supply pin.
3 X
OUT
Input Crystal input (OUT).
4 X
IN
Input Crystal input (IN).
5 FSEL LVTTL/LVCMOS
Input
Frequency select pin. Defaults LOW when left open. Internal pull down resistor to V
EE
.
6 Q Output
Inverted differential output. Typically terminated with 50 to V
CC
−2.0 V.
7 Q Output
Noninverted differential output. Typically terminated with 50 to V
CC
−2.0 V.
8 V
CC
Power Positive digital core power supply pin. Connected to 3.3 V.
Table 3. ATTRIBUTES
Characteristic Value
ESD Protection Human Body Model
Machine Model
> 6 kV
> 200 V
Moisture Sensitivity (Note 1) Pb−Free Pkg, TSSOP−8 Level 3
Flammability Rating Oxygen Index: 28 to 34 UL 94 V−0 @ 0.125 in
Transistor Count 4150
Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test
1. For additional information, see Application Note AND8003/D.
Table 4. MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
Supply Voltage 4.6 V
V
I
Inputs −0.5 to V
CC
+ 0.5 V
I
O
Output Current Continuous
Surge
50
100
mA
JA
Thermal Resistance (Junction−to−Ambient) 0 Lfpm
500 Lfpm
142
103
°C/W
T
STG
Storage Temperature −65 to 150 °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NB3N3001
http://onsemi.com
3
Table 5. POWER SUPPLY DC CHARACTERISTICS, (V
CC
= 3.3 V ±5%, T
A
= −40°C to 85°C)
Symbol Parameter Conditions Min Typ Max Unit
V
CC
Core Supply Voltage 3.135 3.3 3.465 V
V
CCA
Analog Supply Voltage 3.135 3.3 3.465 V
I
CCA
Analog Supply Current Included in I
EE
19 23 mA
I
EE
Power Supply Current 27 31 mA
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
Table 6. LVPECL DC CHARACTERISTICS, (V
CC
= 3.3 V ±5%, T
A
= −40°C to 85°C)
Symbol Parameter Conditions Min Typ Max Unit
V
OH
Output High Voltage (Note 2) V
CC
− 1.4 V
CC
− 0.9 V
V
OL
Output Low Voltage (Note 2) V
CC
− 2.0 V
CC
− 1.7 V
V
SWING
Peak−to−Peak Output Voltage Swing 0.6 0.75 1.0 V
NOTE: Device will meet the specifications after thermal equilibrium has been established when mounted in a test socket or printed circuit
board with maintained transverse airflow greater than 500 lfpm. Electrical parameters are guaranteed only over the declared
operating temperature range. Functional operation of the device exceeding these conditions is not implied. Device specification limit
values are applied individually under normal operating conditions and not valid simultaneously.
2. Outputs terminated with 50 to V
CC
− 2.0 V. See Figures 4 and 12.
Table 7. LVTTL/LVCMOS DC CHARACTERISTICS, (V
CC
= 3.3 V ±5%, T
A
= −40°C to 85°C)
Symbol Parameter Conditions Min Typ Max Unit
V
IH
Input High Voltage 2.0 V
CC
+ 0.3 V
V
IL
Input Low Voltage −0.3 0.8 V
I
IH
Input High Current FSEL V
CC
= V
IN
= 3.465 V 150
A
I
IL
Input Low Current FSEL V
CC
= 3.465 V, V
IN
= 0 V −5.0
A
Table 8. PIN CHARACTERISTICS
Symbol Parameter Conditions Min Typ Max Unit
C
IN
Input Capacitance 4 pF
R
PD
Input Pull Down Resistor 100
k
Table 9. CRYSTAL CHARACTERISTICS (Fundamental Mode 18 pF Parallel Resonant Crystal)
Parameter Conditions Min Typ Max Unit
Frequency 26.5625 MHz
Equivalent Series Resistance (ESR) 50
Shunt Capacitance 7.0 pF
P1-P3P4-P6P7-P8

NB3N3001DTG

Mfr. #:
Buy NB3N3001DTG
Manufacturer:
ON Semiconductor
Description:
IC CLK GEN LVPECL DIFF 8-TSSOP
Lifecycle:
New from this manufacturer.
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