Elan eSL Series Manuel d'utilisateur télécharger pdf (Page 12)

eSL Series

16 Bits DSP Sound Processor

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Product Specification (V1.7) 10.15.2009

(This specification is subject to change without further notice)

6 Pin Description

6.1 Power Supply

Name Type

Supply

Voltage

Description

VDD_CPU P 3V Positive power supply for CPU, digital peripheral and DRAM

VDD_PM P 3V Positive power supply for PROM, DROM and POR

VDD_OSC P 3V Positive power supply for Oscillator system and PLL

IOVDD_PWM P 3V, 5V

Positive power supply for Port D and PWM I/O pad

IOVDD_PB P 3V, 5V

Positive power supply for Port A.2~15 and Port B I/O pad

IOVDD_PC P 3V, 5V

Positive power supply for Port C I/O pad

VSS_CPU P GND Negative power supply for CPU, digital peripheral and DRAM

VSS_PM P GND Negative power supply for PROM, DROM and POR

VSS_OSC P GND Negative power supply for Oscillator system and PLL

IOVSS_PWM P GND Negative power supply for Port D and PWM I/O pad

IOVSS_PB P GND Negative power supply for Port A.2~15 and Port B I/O pad

IOVSS_PC P GND Negative power supply for Port C I/O pad

AVDD_AD P 3V Positive power supply for A/D

AVDD_DA P 3V Positive power supply for D/A

AVSS_AD P GND Negative power supply for A/D

AVSS_DA P GND Negative power supply for D/A

VREF P 3V External reference voltage input pin for A/D and MIC

RVIN P 5V Regulator voltage input

RVOUT P 3V Regulator voltage output 3.0V

NOTE

The AVDD_AD, VREF are analog voltage input that need to separate with other digital

voltage input to reduce noise issue. For example, you can use on-chip regulator to be

the analog voltage source. Or you can refer to development board reference circuit.

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Elan eSL Series Manuel d'utilisateur Page 12