TIM 2015 Technical Manual v1 (February 2018)
Page 8
provided. These are buffered by general-purpose transistors T1 and T2. A separate external interface and power supply will be needed if you
want to use these outputs for your own projects such as driving mechanical slave clocks or synchronising other devices.
Specifications
Power supply requirements:
9 - 12 Volts DC @ 1Amp rating (Switching type adapter preferred)
3 Volts lithium coin cell (CR2032) for the RTC timekeeping battery backup.
Power consumption:
Approx 0.55W (Amplifier=off, Wi-Fi=off, Display brightness setting=34 (half-power).
Approx 0.7W (Amplifier=off, Wi-Fi=off, Display brightness setting=maximum brightness.
Approx 1.14W (Amplifier=off, Wi-Fi=active, Display brightness setting=maximum brightness.
Approx 2.35W (Amplifier=full volume (8Ω speaker), Wi-Fi=active, Display brightness setting=maximum brightness.
Backup timekeeping battery power consumption:
0.85µA (Estimated run-time >10 years (or the shelf life of the CR2032 battery)).
Dimensions:
PCB alone
140mm x 85mm x 1.6mm
Timekeeping accuracy:
Unadjusted RTC accuracy ±2ppm from 0°C to +40°C (about ± 5.4 seconds per month).
Timekeeping may be improved by timekeeping fine adjustment menu setting.
Crystal ageing:
First year:
±1ppm
1-10 Years:
±5ppm (RTC manufacturer’s estimate).
Содержание TIM 2015
Страница 1: ...TIM 2015 Technical Manual v1 February 2018 Page 1 TIM 2015 Speaking Clock TECHNICAL MANUAL...
Страница 9: ...TIM 2015 Technical Manual v1 February 2018 Page 9 Board dimensions 140 x 85mm...
Страница 10: ...TIM 2015 Technical Manual v1 February 2018 Page 10 Board layout...
Страница 11: ...TIM 2015 Technical Manual v1 February 2018 Page 11 Circuit diagram...