NB4N507AD ON Semiconductor, NB4N507AD Datasheet - Page 6

• Manufacturer Part Number: NB4N507AD
• Description: IC SYNTHESIZER CLK PECL 16-SOIC
• Manufacturer: ON Semiconductor
• Type: Clock/Frequency Synthesizerr

Specifications of NB4N507AD

• Pll: Yes
• Input: Clock, Crystal
• Output: PECL
• Number Of Circuits: 1
• Ratio - Input:output: 1:1
• Differential - Input:output: No/Yes
• Frequency - Max: 200MHz
• Divider/multiplier: Yes/Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Frequency-max: 200MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

NB4N507A, along with a low frequency fundamental mode
crystal, can build a high frequency differential PECL output
oscillator. For example, a 10 MHz crystal connected to the
NB4N507A with the 12X output selected (S1 = 0, S0 = 1)
produces a 120 MHz PECL output clock.
Crystal Oscillator Input Interface
to minimize system implementation costs. The oscillator
circuit is a parallel resonant circuit and thus, for optimum
performance, a parallel resonant crystal should be used.
inputs, the user is advised to mount the crystal as close to the
NB4N507A as possible to avoid any board level parasitics.
Surface mount crystals are recommended, but not required.
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
ORDERING INFORMATION
Specifications Brochure, BRD8011/D.
NB4N507AD
NB4N507ADG
NB4N507ADR2
NB4N507ADR2G
High Frequency Differential PECL Oscillators: The
The NB4N507A features an integrated crystal oscillator
As the oscillator is somewhat sensitive to loading on its
18 pF
Parallel Crystal
Device
Figure 7. Crystal Input Interface
X1
C1
33 pF
C2
27 pF
Resource Reference of Application Notes
AN1405/D
AN1406/D
AN1503/D
AN1504/D
AN1568/D
AN1672/D
AND8090/D
(Pb-Free)
(Pb-Free)
Package
SOIC-16
SOIC-16
SOIC-16
SOIC-16
X
X
1
APPLICATIONS INFORMATION
2
/CLK
- ECL Clock Distribution Techniques
- Designing with PECL (ECL at +5.0 V)
- ECLinPSt I/O SPiCE Modeling Kit
- Metastability and the ECLinPS Family
- Interfacing Between LVDS and ECL
- The ECL Translator Guide
-
http://onsemi.com
AC Characteristics of ECL Devices
NB4N507A
6
guaranteed to be greater than 10 kHz. This means that the
PLL will track any modulation on the input with a frequency
of less than 10 kHz. By using this property, a low frequency
VCXO can be built. The output can then be multiplied by the
NB4N507A, thereby producing a high frequency VCXO.
application, an inexpensive, low frequency TCXO can be
built and the output frequency can be multiplied using the
NB4N507A. Since the output of the chip is phase-locked to
the input, the NB4N507A has no temperature dependence,
and the temperature coefficient of the combined system is
the same as that of the low frequency TCXO.
Decoupling and External Components
to be connected between V
must be connected close to the NB4N507A. Other V
GND connections should be connected to those pins, or to the
V
needed for the PECL outputs as shown in Figure 4. Suggested
values of these resistors are shown, but they can be varied to
change the differential pair output swing, and the DC level.
DD
High Frequency VCXO: The bandwidth of the PLL is
High Frequency TCXO: Extending the previous
The NB4N507A requires a 0.01 mF decoupling capacitor
and GND planes on the board. Another four resistors are
2500 / Tape & Reel
2500 / Tape & Reel
48 Units / Rail
48 Units / Rail
Shipping
DD
and GND on pins 2 and 5. It
†
DD
and