SM8760CA Datasheet, PDF (2/8 Pages) Nippon Precision Circuits Inc – Spread Spectrum Clock Generator

BLOCK DIAGRAM
SM8760CA
VDD
VSS
XT
XTN
X'tal
OSC
Phase Detector
R Counter
&
LPF
Charge Pump
(PLL)
N Counter
VCO
Post
Divider
SS Control
SSC Control
Mode, R/N Counter setting,
Divider setting, etc.
Control Logic
ENS
PDN
REFOUT
CLKOUT
PIN DESCRIPTION
Number
1
2
3
4
5
6
7
8
Name
XT
XTN
PDN
ENS
REFOUT
VSS
CLKOUT
VDD
I/O
Function
I
Crystal oscillator element connection or external clock input
O
Crystal oscillator element connection
I
Power-down control (with built-in pull-up resistor)
I
SS modulation function ON/OFF (with built-in pull-up resistor)
O
Reference clock output
GND Ground
O
SS clock output
PWR Supply voltage
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