CY8CLED16 Datasheet, PDF (29/39 Pages) Cypress Semiconductor – EZ-Color™ HB LED Controller

CY8CLED16
When bypassed by a capacitor on P2[4], the noise of the analog ground signal distributed to each block is reduced by a factor of up
to 5 (14 dB). This is at frequencies above the corner frequency defined by the on-chip 8.1k resistance and the external capacitor.
Figure 12. Typical AGND Noise with P2[4] Bypass
dBV/rtHz
10000
0
0.01
0.1
1.0
10
1000
100
0.001
0.01
0.1 Freq (kHz) 1
10
100
At low frequencies, the opamp noise is proportional to 1/f, power independent, and determined by device geometry. At high
frequencies, increased power level reduces the noise spectrum level.
nV/rtHz
10000
Figure 13. Typical Opamp Noise
PH_BH
PH_BL
PM_BL
PL_BL
1000
100
10
0.001
0.01
0.1 _{Freq (kHz)}
1
10
100
AC Low Power Comparator Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C ≤ T_A ≤ 85°C, 3.0V to 3.6V and -40°C ≤ T_A ≤ 85°C, or 2.4V to 3.0V and -40°C ≤ T_A ≤ 85°C, respectively. Typical parameters
apply to 5V at 25°C and are for design guidance only.
Table 27. AC Low Power Comparator Specifications
Symbol
T_RLPC
Description
LPC response time
Min
–
Typ
–
Max
50
Units
μs
Notes
≥ 50 mV overdrive comparator reference set
within V_REFLPC.
Document Number: 001-13105 Rev. **
Page 29 of 39