Cypress CY8C24423A Manual De Usuario
CY8C24223A, CY8C24423A
Document Number: 3-12029 Rev. *E
Page 24 of 31
AC Low Power Comparator Specifications
The following tables list guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C
and -40°C
≤ T
A
≤ 125°C. Typical parameters apply to 5V at 25°C and are for design guidance only.
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.
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 14. Typical AGND Noise with P2[4] Bypass
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.
frequencies, increased power level reduces the noise spectrum level.
Figure 15. Typical Opamp Noise
Table 23. AC Low Power Comparator Specifications
Symbol
Description
Min
Typ
Max
Units
Notes
T
RLPC
LPC response time
–
–
50
μs
≥ 50 mV overdrive comparator
reference set within V
reference set within V
REFLPC
.
100
1000
10000
0.001
0.01
0.1
1
10
100
Freq (kHz)
dBV/rtHz
0
0.01
0.1
1.0
10
0.01
0.1
1.0
10
10
100
1000
10000
0.001
0.01
0.1
1
10
100
Freq (kHz)
nV/rtHz
PH_BH
PH_BL
PM_BL
PL_BL
PH_BL
PM_BL
PL_BL