Manuali utente per Shanghai SIMCom Wireless Solutions Limited 8PSA301

Sommario

• 1. SIM8905A Description

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  • 1.1. Summarize

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  • 1.2. Feature

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  • 1.3. Pin

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  • 1.4. Picture

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  • 1.5. Dimension

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• 2. Detail Block Diagram

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• 3. Interface Application

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  • Power Supply

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  • Power on/off

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    • Power on

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    • Power off

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  • VRTC

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  • Output Power Management

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  • USB Interface

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  • Linear Battery Charger

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    • Charging Control

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    • VBAT_SNS

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  • UART/SPI/I2C

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  • Secure Digital Interface

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  • Display Interface

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  • Touch Screen Interface

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  • Camera Interface

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  • Audio

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    • Microphone

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    • Headset

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    • Earpiece

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    • Speaker

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    • Microphone bias

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  • USIM Interface

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  • ADC

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  • Vibrator

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  • Antenna Interface

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    • MAIN Antenna reference circuit

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    • DRX Antenna reference circuit

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• PCB Layout

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  • Stack-up Options

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  • General Placement Guidelines

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  • PCB Layout Guideline Details

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  • RF Trace

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  • Power/GND

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  • USIM Card

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  • MIPI_DSI/CSI

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  • USB

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  • SDC Signal

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  • Audio

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• Electrical and Reliability

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  • Absolute Maximum Ratings

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  • Temperature Range

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  • Operating Voltage

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  • Digital-logic Characteristics

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  • PWRKEY Characteristics

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  • VRTC Characteristics

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  • Current Consumption (VBAT=3.9V)

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  • Electro-Static Discharge

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  • Module Operating Frequencies

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  • Module Output power

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  • Module Receiving Sensitivity

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