Table 42. TSI electrical specifications (continued)
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
MaxSens2
0
Maximum sensitivity @ 20 pF electrode
0.003
0.25
—
fF/count
MaxSens Maximum sensitivity
0.003
—
fF/count
Res
Resolution
—
16
bits
TCon20
Response time @ 20 pF
8
15
25
μs
ITSI_RUN
Current added in run mode
—
TBD
—
μA
ITSI_LP
Low power mode current adder
—
1
TBD
μA
1. The TSI module is functional with capacitance values outside this range. However, optimal performance is not guaranteed.
2. The programmable current source value is generated by multiplying the SCANC[REFCHRG] value and the base current.
3. Measured with a 5 pF electrode, reference oscillator frequency of 10 MHz, PS = 128, NSCN = 8; Iext = 16.
4. Measured with a 20 pF electrode, reference oscillator frequency of 10 MHz, PS = 128, NSCN = 2; Iext = 16.
5. Measured with a 20 pF electrode, reference oscillator frequency of 10 MHz, PS = 16, NSCN = 3; Iext = 16.
6. Measured with a 20 pF electrode, reference oscillator frequency of ~5 MHz (IREF = 5 μA, REFCHRG = 4), PS = 128,
NSCN = 2; Iext = 16 (EXTCHRG = 15).
7. Typical value depends on the configuration used.
8. Time to do one complete measurement of the electrode. Sensitivity resolution of 0.0133 pF, PS = 0, NSCN = 0, 1
electrode, DELVOL = 2, EXTCHRG = 15.
6.9.2 LCD electrical characteristics
Table 43. LCD electricals
Symbol
Description
Min.
Typ.
Max.
Unit
Notes
fFrame
LCD frame frequency
28
30
58
Hz
CLCD
LCD charge pump capacitance — nominal value
—
100
—
nF
CBYLCD
LCD bypass capacitance — nominal value
—
100
—
nF
CGlass
LCD glass capacitance
—
2000
8000
pF
VIREG
VIREG — HREFSEL = 0
HREFSEL = 0
HREFSEL = 1
0.89
1.49
1.00
1.67
1.15
1.85
V
ΔRTRIM
VIREG TRIM resolution
3.0
—
% VIREG
—
VIREG ripple
HREFSEL = 0
HREFSEL = 1
—
30
50
mV
IVIREG
VIREG current adder — RVEN = 1
—
1
—
A
IRBIAS
RBIAS current adder
HREFSEL = 0
HREFSEL = 1
—
10
1
—
A
Table continues on the next page...
Peripheral operating requirements and behaviors
K30 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
60
Preliminary
Freescale Semiconductor, Inc.