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