
I-120 EPSON S1C62740 TECHNICAL HARDWARE
CHAPTER 6: DIAGRAM OF BASIC EXTERNAL CONNECTIONS
X'tal Crystal oscillator 32.768 kHz, CI (Max.) = 35 kΩ
C
GX Trimmer capacitor 5-25 pF
CR Ceramic oscillator 1 MHz
C
GC Gate capacitance 100 pF
C
DC Drain capacitance 100 pF
R
CR Resistance for CR oscillation 39 kΩ (fOSC3 ≈ 900 kHz)
R
A1 Resistance for LCD drive voltage adjustment 1 MΩ (VC1 ≈ 1.5 V)
R
A2 Resistance for LCD drive voltage adjustment 2 MΩ (VC1 ≈ 1.5 V)
TH Thermistor 10 kΩ (5 kΩ to 20 kΩ)
R
REF Reference resistance for resistance measurement 10 kΩ
R
I Integral resistance 680 kΩ (6400), 330 kΩ (3200), 180 kΩ (1600),
82 kΩ (800) ...(resolution)
C
I Integral capacitor 0.1 µF
C
AZ Capacitor for auto zero adjustment 0.1 µF
C
IF Analog input filter capacitor 0.01 µF
C1–C9 0.1 µF
C
P1, CP2 3.3 µF
Note: The above table is simply an example, and is not guaranteed to work.
R1 Protection resistance 100 Ω
R2 Protection resistance 100 Ω
• When the piezoelectric buzzer is driven directly
Piezo
R1 R2
R03
S1C62740
(BZ)
R02
(BZ)
Komentarze do niniejszej Instrukcji