Cypress CY8C24123A manual Analog System Block Diagram

CY8C24123A CY8C24223A, CY8C24423A

Analog System

The Analog System consists of six configurable blocks, each consisting of an opamp circuit that allows the creation of complex analog signal flows. Analog peripherals are very flexible and can be customized to support specific application requirements. Some of the more common PSoC analog functions (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 to 48x)

■Instrumentation amplifiers (one with selectable gain 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 as a PSoC Core resource)

■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

P0[7]		P0[6]
P0[5]		P0[4]
P0[3]		P0[2]
P0[1]		P0[0]
	RefIn	P2[6]
P2[3]
	AGNDIn
		P2[4]
P2[1]
		P2[2]
		P2[0]
Array Input Configuration
ACI0[1:0]	ACI1[1:0]
Block Array
ACB00	ACB01
ASC10	ASD11
ASD20	ASC21

Analog Reference

Interface to	RefHi	Reference	AGNDIn
Digital System	RefLo	Generators	RefIn
	AGND		Bandgap

M8C Interface (Address Bus, Data Bus, Etc.)

Document Number: 38-12028 Rev. *I Page 3 of 56

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