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C-MAX Time Solutions
Data Sheet
CME8000
Parameter
Test condition /
Pin
Symbol
Min.
Typ.
Max.
Unit
**
Logical Part
(tristate inputs: SS1, SS2, clksel)
Active only during the first 16 clock cycles (1024Hz) after
Power-on-Reset
Pins SS1, SS2, clksel
Low level (R to GND)
High level (R to V L )
Open (leakage
20
20
100
kOhm
kOhm
nA
A
A
A
current)
Input leakage current
after detection
0 < V i < V L
-1
+1
μA
A
Antenna switch (Pins ANT1, ANT2)
V CC = 3V
Resistance to IN
Switch open (SS1 =
1M
Ohm
A
open)
Resistance to IN
Switch closed (SS1 =
30
50
Ohm
A
SS2 = not open)
**) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
8
Logical function of SS1 and SS2
Crystal
ANT2
ANT1
Checked
Data out*
SS1
SS2
Mode
Protocol
protocols
L
L
L
H
normal
Normal
JJY40
WWVB
QL
QM
On
On
On
Off
JJY
WWVB
100
110
JJY
MSF
100
111
H
H
O
O
L
H
L
H
normal
normal
normal
normal
JJY60
MSF
DCF77
DCF77
QM
QM
QH
QH
On
On
Off
Off
Off
Off
Off
Off
JJY
MSF
DCF77
DCF77
001
111
101
101
O
O
O
=
open
Not allowed
*Protocol identifier bits 1-3 (refer to “data out timing table”) Bit 1 is the first bit of output from CME8000
After connecting power supply or/and after choosing a different country, PON (Reset mode) has to be
performed.
SPEC No.
CME8000
Revision
B.15
State
09.03.07
C-MAX printed
03.05.2007
Version
English
Page
9 of 22
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