MPC5601DXLL datasheet(54/77 Pages) FREESCALE

54 / 77 page

MPC5602D Microcontroller Data Sheet, Rev. 3.1

Preliminary—Subject to Change Without Notice

Electrical characteristics

Freescale Semiconductor

Equation 4 generates a constraint for external network design, in particular on a resistive path. Internal switch resistances (RSW

and RAD) can be neglected with respect to external resistances.

Figure 12. Input equivalent circuit (precise channels)

Figure 13. Input equivalent circuit (extended channels)

RSW1

CP2

VDD

Sampling

Source

Filter

Current Limiter

EXTERNAL CIRCUIT

INTERNAL CIRCUIT SCHEME

Source Impedance

Filter Resistance

Filter Capacitance

Current Limiter Resistance

RSW1 Channel Selection Switch Impedance

RAD Sampling Switch Impedance

Pin Capacitance (two contributions, CP1 and CP2)

Sampling Capacitance

CP1

RAD

Channel

Selection

RSW1

CP3

VDD

Sampling

Source

Filter

Current Limiter

EXTERNAL CIRCUIT

INTERNAL CIRCUIT SCHEME

Source Impedance

Filter Resistance

Filter Capacitance

Current Limiter Resistance

RSW Channel Selection Switch Impedance (two contributions RSW1 and RSW2)

RAD Sampling Switch Impedance

Pin Capacitance (three contributions, CP1, CP2 and CP3)

Sampling Capacitance

CP1

RAD

Channel

Selection

CP2

Extended

RSW2

Switch

MPC5601DXLL 数据表(PDF) 54 Page - Freescale Semiconductor, Inc

MPC5601DXLL 数据表(HTML) 54 Page - Freescale Semiconductor, Inc

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