User manual

CY8C24223A, CY8C24423A
Document Number: 38-12029 Rev. *H Page 4 of 34
Analog System
The Analog System is composed of six configurable blocks, each
comprised of an opamp circuit allowing the creation of complex
analog signal flows. Analog peripherals are very flexible and can
be customized to support specific application requirements.
Some of the common PSoC analog functions for this device
(most available as user modules) are:
■ Analog-to-digital converters (up to two, with 6 to 14-bit
resolution, selectable as Incremental, Delta-Sigma, and SAR)
■ Filters (two and four pole band-pass, low-pass, and notch)
■ Amplifiers (up to two, with selectable gain up to 48x)
■ Instrumentation amplifiers (one with selectable gain up to 93x)
■ Comparators (up to two, with 16 selectable thresholds)
■ DACs (up to two, with 6 to 9-bit resolution)
■ Multiplying DACs (up to two, with 6 to 9-bit resolution)
■ High current output drivers (two with 30 mA drive)
■ 1.3V reference (as a System Resource)
■ DTMF Dialer
■ Modulators
■ Correlators
■ Peak Detectors
■ Many other topologies possible
Analog blocks are arranged in a column of three, which includes
one CT (Continuous Time) and two SC (Switched Capacitor)
blocks, as shown in Figure 2.
Figure 2. Analog System Block Diagram
ACB01
Block Array
Array Input Configuration
ACI1[1:0]
ASD20
ACI0[1:0]
P0[4]
RefInAGNDIn
Reference
Generators
AGNDIn
ASD11
Interface to
Digital System
M8C Interface (Address Bus, Data Bus, Etc.)
Analog Reference
P0[6]
P0[2]
P0[0]
P2[6]
P2[4]
P2[2]
P2[0]
ASD11
ASC22
ACB00
ASC10
P0[7]
P0[5]
P0[3]
P0[1]
P2[3]
P2[1]
RefIn
BandGap
RefHi
RefLo
AGND
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