Technical information

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Application guide
Application guideApplication guide
Application guide Epson Toyocom
Epson ToyocomEpson Toyocom
Epson Toyocom
OUTPUT WAVEFORM AND TEST CIRCUIT
1. Timing chart
(1) CMOS load
(2) TTL load
NOTE : SYM=tw/t×100％
2. Test conditions
(1) Supply voltage
•More than 150µs until voltage level reaches 90 % from 0 %.
•Supply voltage impedance is less than 2 Ω of resistance.
(2) Oscilloscope
•Input capacitance of less than 15 pF
•Frequency range of 5 times or more of measurements frequency.
•Earth lead of the probe should be as short as possible.
•Probe impedance when measuring frequency is to be more than
1 MΩ.Simultaneous measurement is possible as the wave form
passes from the amplifier stage of an oscilloscope.
(3) MISCELLANEOUS
•CL includes the probe capacitance.
•Ammeter with small internal impedance should be used.
•To observe wave form, please use a miniature socket.
(do not use a long ground wire of the probe.)
3. Test circuit
SG/EG/MG/HG/VG series
(1) CMOS load (2) TTL load (3) Current consumption
TCO-****series *1 : To connect in case of the frequency voltage-controlled function
(1) 50Ω load
Model:
TCO-294J
TCO-6920A
TCO-291J
TCO-391J
(2) CMOS load-1
Model:
TCO-2003A
TCO-2004A
TCO-2103A
TCO-2104A
TCO-2107
TCO-7116X1Z4
VG-4501CA
TCO-710x series
TCO-5060/5160 series
TCO-708*X1A series
Miniature
probe
Miniature socket parts
Socket (GND)
Tip adapter
(Test point)
V CC
GND
V
OL
V
OH
t
W
t
20
％
or 10
％
Vcc
50％ Vcc
80
％
or 90
％
Vcc
tr
tf
Vcc
GND
V
OL
V
OH
t
W
t
0.4 V
1.4 V
2.4 V
tr
tf
Measured
Object
V CC
GND
OUT
1 nF
0.1
µ
F
10 kΩ
50
Ω
ΩΩ
Ω
Terminal
Power meter
Oscilloscope
Frequency counter
V
C
V C
(
∗
1)
V
CC
V CC
GND
OUT
3 pF
0.1
µ
F
Oscilloscope
Frequency counter
V C
V C
(
∗
1)
V
CC
Measured
Obje ct
L_CMOS
Measu red
Object
V
CC
GND
OUT
0.01
µ
F
to 0.1
µ
F
TEST
POINT
For L_CMOS value,
refer to t he
specifications
of each m od el .
(Vc)
(
∗
1)
L_CMOS
V CC
*1 : To connect in case of the frequency
voltage-controlled function
For C_CMOS value, refer to the
specifications of each mod el.
Measured
Object
V CC
GND
OUT
0.01
µ
F
to 0.1
µ
F
TEST
POINT
R L
Diode: 1S 2076A
1TTL=4 kΩ
10TTL=390 Ω
V CC
L_CMOS
Measu red
Object
V
CC
GND
OUT
0.01
µ
F
to 0.1
µ
F
A
V
CC