Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
The NB4N507A is a precision clock synthesizer which generates a very low jitter differential PECL output clock. It produces a clock output based on an integer multiple of an input reference frequency.
The NB4N507A accepts a standard fundamental mode crystal, using Phase−Locked−Loop (PLL) techniques, will produce output clocks up to 200 MHz. In addition, the PLL circuitry will produce a 50% duty cycle square−wave clock output.
The NB4N507A can be programmed to generate a selection of input reference frequency multiples. An exact 155.52 MHz output clock can be generated from a 19.44 MHz crystal and the x8 multiplier selection. The NB4N507A is intended for low output jitter clock generation.
NB4N507A Maximum Ratings
Symbol
Parameter
Condition 1
Condition 2
Rating
Unit
VCC
Positive Power Supply
GND = 0 V
6
V
VI
Positive Input
GND − 0.5 VI VDD + 0.5
V
TA
Operating Temperature Range
−40 to +85
Tstg
Storage Temperature Range
−65 to +150
JA
Thermal Resistance (Junction−to−Ambient)
0 lfpm 500 lfpm
SOIC−16
100 60
/W /W
JC
Thermal Resistance (Junction−to−Case)
(Note 2)
SOIC−16
33 to36
/W
Tsol
Wave Solder Pb Pb−Free
<3 Sec @ 248°C <3 Sec @ 260°C
265
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. 2. JEDEC standard multilayer board − 2S2P (2 signal, 2 power).
NB4N507A Features
• Input Crystal Frequency of 10 − 27 MHz • Enable Usage of Common Low−Cost Crystal • Differential PECL Output Clock Frequencies up to 200 MHz • Duty Cycle of 48%/52% • Operating Range: VCC = 3.0 V to 5.5 V • Ideal for SONET Applications and Oscillator Manufacturers • Available in Die Form • Packaged in 16−Pin Narrow SOIC • Pb−Free Packages are Available*