Product Specifications

CY8C29466/CY8C29566
CY8C29666/CY8C29866
Document Number: 38-12013 Rev. AB Page 42 of 67
Analog Reference Noise spectrum:
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 8.1 K resistance and the external capacitor.
Figure 18. 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.
Note: The capacitor values shown in Figure 18 are in µF.
AC Low-Power Comparator Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75 V to 5.25 V
and –40 °C
 T
A
 85 °C, 3.0 V to 3.6 V and –40 °C  T
A
 85 °C, or 2.4 V to 3.0 V and –40 °C  T
A
 85 °C, respectively. Typical
parameters apply to 5 V at 25
°C and are for design guidance only.
Table 33. AC Low-Power Comparator Specifications
Symbol Description Min Typ Max Unit Notes
t
RLPC
LPC response time – – 50 µs  50 mV overdrive comparator reference set within
V
REFLPC
AGND = 1.6 × Vbg