User manual

CY8C27143, CY8C27243
CY8C27443, CY8C27543, CY8C27643
Document Number: 38-12012 Rev. *O Page 36 of 53
Figure 19. Typical Opamp Noise
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.
AC Digital Block 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, or 3.0V to 3.6V and -40°C ≤ T
A
≤ 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and
are for design guidance only.
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
Table 35. 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
.
Table 36. AC Digital Block Specifications
Function Description Min Typ Max Unit Notes
All
Functions
Maximum Block Clocking Frequency (> 4.75V) – – 49.2 MHz 4.75V < Vdd < 5.25V
Maximum Block Clocking Frequency (< 4.75V) – – 24.6 MHz 3.0V < Vdd < 4.75V
Timer Capture Pulse Width 50
[17]
– – ns
Maximum Frequency, No Capture – – 49.2 MHz 4.75V < Vdd < 5.25V
Maximum Frequency, With Capture – – 24.6 MHz
Counter Enable Pulse Width 50
[17]
– – ns
Maximum Frequency, No Enable Input – – 49.2 MHz 4.75V < Vdd < 5.25V
Maximum Frequency, Enable Input – – 24.6 MHz
Notes
17. 50 ns minimum input pulse width is based on the input synchronizers running at 24 MHz (42 ns nominal period).
18. Refer to Table 47 on page 50
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