User's Manual
Table Of Contents
- General Description
- Contents
- Overview
- Pad Connection Interface
- Recommended Host PCB Layout
- Power Supply Connections and Recommended External Components
- Electrical Specification
- Environmental Specifications
- Regulatory Information
- Ordering Information
- Acronyms
- Document Conventions
- Errata
- Document History Page
- Sales, Solutions, and Legal Information
PRELIMINARY
CYBLE-214009-00
Document Number: 002-09714 Rev. ** Page 22 of 40
Pulse Width Modulation (PWM)
LCD Direct Drive
Table 25. Counter AC Specifications
Parameter Description Min Typ Max Units Details/Conditions
T
CTRFREQ
Operating frequency F
CLK
–48MHz
T
CTRPWINT
Capture pulse width (internal) 2 × T
CLK
––ns
T
CTRPWEXT
Capture pulse width (external) 2 × T
CLK
––ns
T
CTRES
Counter Resolution T
CLK
––ns
T
CENWIDINT
Enable pulse width (internal) 2 × T
CLK
––ns
T
CENWIDEXT
Enable pulse width (external) 2 × T
CLK
––ns
T
CTRRESWINT
Reset pulse width (internal) 2 × T
CLK
––ns
T
CTRRESWEXT
Reset pulse width (external) 2 × T
CLK
–– ns
Table 26. PWM DC Specifications
Parameter Description Min Typ Max Units Details/Conditions
I
PWM1
Block current consumption at 3 MHz – – 42 µA 16-bit PWM
I
PWM2
Block current consumption at 12 MHz – – 130 µA 16-bit PWM
I
PWM3
Block current consumption at 48 MHz – – 535 µA 16-bit PWM
Table 27. PWM AC Specifications
Parameter Description Min Typ Max Units Details/Conditions
T
PWMFREQ
Operating frequency F
CLK
–48MHz
T
PWMPWINT
Pulse width (internal) 2 × T
CLK
––ns
T
PWMEXT
Pulse width (external) 2 × T
CLK
––ns
T
PWMKILLINT
Kill pulse width (internal) 2 × T
CLK
––ns
T
PWMKILLEXT
Kill pulse width (external) 2 × T
CLK
––ns
T
PWMEINT
Enable pulse width (internal) 2 × T
CLK
––ns
T
PWMENEXT
Enable pulse width (external) 2 × T
CLK
––ns
T
PWMRESWINT
Reset pulse width (internal) 2 × T
CLK
––ns
T
PWMRESWEXT
Reset pulse width (external) 2 × T
CLK
––ns
Table 28. LCD Direct Drive DC Specifications
Spec ID Parameter Description Min Typ Max Units Details/Conditions
SID228 I
LCDLOW
Operating current in low-power mode – 17.5 – µA 16 × 4 small segment
display at 50 Hz
SID229 C
LCDCAP
LCD capacitance per segment/common
driver
– 500 5000 pF
SID230 LCD
OFFSET
Long-term segment offset – 20 – mV
SID231 I
LCDOP1
LCD system operating current
V
BIAS
= 5 V
– 2 – mA 32 × 4 segments.
50 Hz at 25 °C
SID232 I
LCDOP2
LCD system operating current
V
BIAS
= 3.3 V
– 2 – mA 32 × 4 segments
50 Hz at 25 °C
Table 29. LCD Direct Drive AC Specifications
Spec ID Parameter Description Min Typ Max Units Details/Conditions
SID233 F
LCD
LCD frame rate 10 50 150 Hz