Solvline Eddy DK - Manual (Page 43)

Eddy DK Programmer Guide
43
2.4.5.4. RTC
- DS1340 (Dallas, I2C interface)
- 12.5pF load capacitance crystal must be used. (Refer to Crystal Spec below)
- Do not use another RTC Chip.
- Backup Battery: CR2032 (235mAh) Lithium Battery.
DS1340 Crystal Specifications
Parameter Symbol MIN TYP MAX Units
Normal Frequency fo 32.768 KHz
Series Resistance ESR 45,60 KΩ
Load Capacitance CL 12.5 pF
2.4.5.5. Temp Sensor
AD0(PC0)에 National LM50
2.4.5.6. Light Sensor
BH1600FVC (Rohm)
The Output voltage is caculated as below
Viout = 0.6 x10-6 x Ev x R1
Where, Viout = IOUT output voltage [V]
Ev = lilluminance of the ALS(Ambient Light Sensor) surface [lx]
R1 = IOUT output resistor [Ω]