Crystal oscillator
Specifications (characteristics)
Specifications
SG-636 PHW / SHW
SG-645 PHW / SHW
Item
Symbol
SG-636 PTW / STW
SG-645 PTW / STW
SG-636 PCW / SCW
SG-645 PCW / SCW
Conditions / Remarks
Output frequency range
Supply voltage
32.001 MHz to 135.000 MHz
5.0 V 0.5 V
f
0
VCC
3.3 V 0.3 V
Storage temperature
SG-636***:-55 C to +100 C / SG-645***:-55 C to +125 C
Storage as single product.
T_stg
T_use
-20 C to +70 C
Operating temperature
Frequency tolerance
-40 C to +85 C
SG-645PCW / SCW Only
-20 C to +70 C
-40 C to +85 C : SG-645PCW / SCW Only
No load condition( Max. frequency range )
OE=GND (PTW,PHW,PCW)
f_tol
B: 50 10-6 C: 100 10-6
M: 100 10-6
*1
Current consumption
Disable current
Stand-by current
ICC
I_dis
I_std
45 mA Max.
30 mA Max.
28 mA Max.
16 mA Max.
50 A Max.
=GND (STW,SHW,SCW)
ST
40 % to 60 %
50 % VCC level, L_CMOS=Max.
1.4 V level, L_CMOS=Max.
IOH=-16 mA(PTW , STW , PHW , SHW)
/-8 mA(PCW , SCW)
IOL= 16 mA(PTW , STW , PHW , SHW)
/ 8 mA(PCW , SCW)
Symmetry
SYM
VOH
40 % to 60 %
VCC-0.4 V Min.
0.4 V Max.
Output voltage
VOL
Output load condition
(TTL)
Output load condition
(CMOS)
L_TTL
L_CMOS
5 TTL Max.
fO 90 MHz, Max.Supply voltage.
15 pF Max.
Max.frequency, Max.Supply voltage.
VIH
VIL
2.0 V Min.
0.8 V Max.
70 % VCC Min.
20 % VCC Max.
Input voltage
OE Terminal or
Terminal
ST
4 ns Max.
20 % VCC to 80 % VCC level, L_CMOS Max.
0.4 V to 2.4 V level
Rise time / Fall time
t
r / tf
4 ns Max.
10 ms Max.
5 10-6 / year Max.
Time at minimum supply voltage to be 0 s
+25 C, VCC=5.0 V / 3.3 V, First year
Start-up time
Frequency aging
t_str
f_aging
*1 SG-636 series “C” tolerance : 40 MHz<fo135 MHz
External dimensions
(Unit:mm)
Footprint (Recommended)
SG-645 series
(Unit:mm)
.
SG-645 series
7.1±0.2
1.8
#4
#3
Pin map
Pin
1
2
Connection
OE or ST
GND
E135.00C
PCW 0245A
3
OUT
4
VCC
#1
#2
0.4
5.08
(0.75)
(0.75)
3.8
0 Min.
5.08
SG-636 series
10.5 Max.
#4
#3
Pin map
Pin
1
2
Connection
OE or ST
GND
E 18.4320C
PTF9352A
SG-636 series
3
4
OUT
VCC
1.3
#2
#1
(1.0)
(1.0)
0.51
5.08
0.05Min.
3.6
The metal case inside of the molding compound may be exposed on the top or
bottom of this product. This purely cosmetic and does not have any effect on
quality, reliability or electrical specs.
Note.
OE pin (PTF,PCE,PDE,PTW,PHW,PCW,PTG,PHG,PCG)
OE pin = "H" or "open" : Specified frequency output.
OE pin = "L" : Output is high impedance.
5.08
ST pin (STW, SHW, SCW,SCG)
ST pin = "H" or "open" : Specified frequency output.
ST pin = "L" : Output is low level (weak pull - down),oscillation stops.
To maintain stable operation, provide a 0.01uF to
0.1uF by-pass capacitor at a location as near as
possible to the power source terminal of the crystal
product (between Vcc - GND).
ST pin (SCE)
ST pin = "H" or "open" : Specified frequency output.
ST pin = "L" : Output is low level ,oscillation stops.