Crystal oscillator
Specifications (characteristics)
Specifications
Item
Symbol
Remarks
SG-636 PTW
SG-645 PTW
/
/
STW
STW
SG-636 PHW
SG-645 PHW
/
SHW
SHW
SG-636 PCW
SG-645 PCW
/
/
SCW
SCW
/
Output frequency range
Supply voltage
Storage
32.001 MHz to 135.000 MHz
5.0 V ±0.5 V
f
0
V
CC
3.3 V ±0.3 V
T_stg
SG-636P**:-55 °C to +100 °C / SG-645P**:-55 °C to +125 °C
Store as bare product after unpacking
temperature
Operating
Temperature
range
-20 °C to +70 °C
-40 °C to +85 °C
T_use
temperature
Frequency tolerance
SG-645PCW / SCW Only
-20 °C to +70 °C
-40 °C to +85 °C : SG-645PCW / SCW Only
F_tol(osc)
B: ±50 × 10-6 C: ±100 × 10-6
*1
M: ±50 × 10-6
Current consumption
Output disable current
Stand-by current
I
CC
45 mA Max.
30 mA Max.
28 mA Max.
16 mA Max.
No load condition( Max. frequency range )
OE=GND (PTW,PHW,PCW)
I_dis
I_std
50 µA Max.
=GND (STW,SHW,SCW)
ST
40 % to 60 %
50 % VCC level, L_CMOS=Max.
1.4 V level, L_CMOS=Max.
Symmetry
SYM
40 % to 60 %
I
OH=-16 mA(PTW , STW , PHW , SHW)
/-8 mA(PCW , SCW)
OL= 16 mA(PTW , STW , PHW , SHW)
/ 8 mA(PCW , SCW)
High output voltage
Low output voltage
V
OH
V
CC-0.4 V Min.
I
V
OL
0.4 V Max.
Output load condition
(TTL)
Output load condition
(CMOS)
Output enable /
disable input voltage
L_TTL
5 TTL Max.
f
O
≤ 90 MHz, Max.Supply voltage.
Max.frequency, Max.Supply voltage.
OE Terminal , Terminal
L_CMOS
15 pF Max.
10 ms Max.
VIH
2.0 V Min.
0.8 V Max.
70 % VCC Min.
20 % VCC Max.
ST
VIL
4 ns Max.
20 % VCC to 80 % VCC level
0.4 V to 2.4 V level
Time at minimum supply voltage to be 0 s
, L_CMOS ≤ Max.
Output rise and fall time
t
r
/
t
f
4 ns Max.
Oscillation start up time
Frequency aging
t
OSC
±5 × 10-6 / year Max.
+25 °C, VCC=5.0 V / 3.3 V, First year
F_aging
*1 SG-636 series “C” tolerance : 40 MHz<f0≤135 MHz
External dimensions
(Unit:mm)
Footprint (Recommended)
SG-645 series
(Unit:mm)
.
SG-645 series
1.8
7.1 0.2
±
#4
#3
Pin map
Pin
1
E135.00C
Connection
PCW 0245A
ST
OE or
2
GND
OUT
3
CC
4
V
#1
#2
0.4
(0.75)
(0.75)
5.08
3.8
0 Min.
SG-636 series
5.08
10.5 Max.
#4
#3
Pin map
Pin
1
2
3
4
Connection
E 18.4320C
SG-636 series
ST
OE or
1.3
GND
OUT
PTF9352A
CC
V
#2
#1
(1.0)
(1.0)
0.51
5.08
3.6
0.05Min.
Metal may be exposed on the top or bottom of this product.
This will not affect any quality, reliability or electrical spec.
Note.
5.08
PTF,PH,PCE,PDE,PTW,PHW,PCW,PTG,PHG,PCG
OE pin (
)
OE pin = "H" or "open" : Specified frequency output.
OE pin = "L" : Output is high impedance.
ST
ST
ST
pin (STW, SHW, SCW,SCG)
pin = "H" or "open" : Specified frequency output.
pin = "L" : Output is low level (weak pull - down),oscillation stops.
ST
ST
ST
pin (SCE)
pin = "H" or "open" : Specified frequency output.
pin = "L" : Output is low level ,oscillation stops.
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