SM5168BAV Datasheet, PDF (2/2 Pages) Nippon Precision Circuits Inc – PLL Frequency Symthesizer ICs

BLOCK DIAGRAM
XIN
TR
TEST
FIN
SM5168BAV
R-counter
FR
DECORDER
Phase
Detector
Charge
Pump
DO
N-counter
FV
Lock
Detector
LD
PIN DESCRIPTION
Number
1
2
3
4
5
6
7
8
Name
VDD
DO
VSS
FIN
TR
TEST
LD
XIN
I/O
Description
– 2.7 to 3.3V suppply voltage pin.
PLL phase comparator tristate output pin.
O Built-in charge pump means that this output can be connected to a low-pass filter. The output polarity is
preset for connection to a passive filter.
– Ground pin
I
PLL comparator frequency divider input pin.
Feedback resistor built-in for AC-coupled inputs.
I
I Test pin. should be Open or V_SS
O Unlock signal output pin. Low when unlock.
I
PLL reference frequency divider input pin.
Feedback resistor built-in for AC-coupled inputs.
NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to
improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision
Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification.
The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or
malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter,
including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or
indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies.
NIPPON PRECISION CIRCUITS INC.
NIPPON PRECISION CIRCUITS INC.
4-3, 2-chome Fukuzumi
Koto-ku, Tokyo 135-8430, Japan
Telephone: [phone]
Facsimile: 03-3642-6698
NC9629AE 1998.08
NIPPON PRECISION CIRCUITS—2