English
Language : 

KSN-3940A Datasheet, PDF (2/11 Pages) Mini-Circuits – Frequency Synthesizer
Surface Mount
Frequency Synthesizer
50Ω 3860 to 3940 MHz
KSN-3940A+
Features
• Integrated VCO + PLL
• Low phase noise and spurious
• Robust design and construction
• Low operating voltage (VCC VCO=+5V, VCC PLL=+3.3V)
• Small size 0.80" x 0.58" x 0.15"
Applications
• Military
CASE STYLE: DK1042
PRICE: $29.95 ea. QTY (1-9)
+ RoHS compliant in accordance
with EU Directive (2002/95/EC)
The +Suffix has been added in order to identify RoHS
Compliance. See our web site for RoHS Compliance
methodologies and qualifications.
General Description
The KSN-3940A+ is a Frequency Synthesizer, designed to operate from 3860 to 3940 MHz for military
application. The KSN-3940A+ is packaged in a metal case (size of 0.80" x 0.58" x 0.15") to shield against
unwanted signals and noise. To enhance the robustness of KSN-3940A+, each internal component is
secured to the substrate with chip bonder, thereby eliminating the risk of tombstoning during subsequent
solder reflow operations by the customer.
Simplified Schematic
LE DATA CLOCK LOCK DET
GND VCC VCO
FREF REF In
XTAL
(External)
1/R
R COUNTER
VP
K�
Phase
Detector /
CP LOOP FILTER
Charge Pump
Vt VCO
PLL
1/N
N COUNTER
RFinA
SPLITTER
RF Out
VCC PLL
®
IF/RF MICROWAVE COMPONENTS������ 9001 ISO 14001 AS 9100 CERTIFIED
RoHS compliant
o
TM
P.O. Box 350166, Brooklyn, New York 11235-0003 (718) 934-4500 Fax (718) 332-4661
The Design Engineers Search Engine finds the model you need, Instantly • For detailed performance specs & shopping online see
Notes: 1. Performance and quality attributes and conditions not expressly stated in this specification sheet are intended to be excluded and do not form a part of this specification sheet. 2. Electrical specifications and
performance data contained herein are based on Mini-Circuit’s applicable established test performance criteria and measurement instructions. 3. The parts covered by this specification sheet are subject to Mini-Circuits
standard limited warranty and terms and conditions (collectively, “Standard Terms”); Purchasers of this part are entitled to the rights and benefits contained therein. For a full statement of the Standard Terms and the
exclusive rights and remedies thereunder, please visit Mini-Circuits’ website at www.minicircuits.com/MCLStore/terms.jsp.
REV. OR
M129114
EDR-10246ASA
KSN-3940A+
Category-A1
RAV
101005
Page 2 of 11