Description

XM.H352.D Smart Advertising Machine Main Board

HiSilicon V352-based Android 9 mainboard with LVDS output, dual Mali GPUs, and high-capacity storage for versatile digital signage

📋 Product Overview

The XM.H352.D is a smart advertising machine main board utilizing the HiSilicon V352 solution, featuring a 64-bit Cortex-4*A53 CPU and a dual-core Mali T450*2 GPU. Engineered for fluent and stable performance, it delivers powerful audio and video processing capabilities, supporting up to 1080P@60fps LVDS video output. Tailored for the commercial advertising market, it enables multimedia playback via USB, easy firmware upgrades, and provides essential hardware interfaces for a comprehensive digital signage solution.

🛠️ Key Features

✓Enhanced Graphics: Dual-core Mali T450*2 GPU for improved graphics processing.

✓High-Capacity Support: Memory expandable up to 8GB, storage (eMMC) expandable up to 128GB.

✓LVDS Display: Supports 1920×1080@60Hz LVDS video interface output.

✓Powerful Multimedia: Plays various multimedia files via USB, including 1080p@60fps video.

✓Easy Maintenance: Simple and fast software/firmware upgrade via USB 2.0 interface.

✓Comprehensive I/O: Includes DC-IN, dual USB 2.0, RJ45 (100M), HDMI IN, Line-out, and TF Card slot.

✓Low Power Standby: Board-only standby power consumption ≤ 0.3W (without Wake-on-LAN).

🔧 System Configuration

CPU

64-bit ARM Cortex-A53 (4 cores)

GPU

ARM Mali T450 (Dual-core)

Main Chipset

HiSilicon V352

RAM (DDR4)

Default 1GB, expandable up to 8GB

Flash Storage (eMMC)

Default 8GB, expandable up to 128GB

Operating System

Android 9.0

Kernel Version

4.9 (Subject to firmware updates)

Note: The Android and Kernel versions of the actual product may change during system firmware upgrades. Please contact our sales staff for the latest information.

🎥 Performance & Video/Audio

Main Chipset

HiSilicon V352

Panel Interface

LVDS

Max Resolution

1920×1080 @ 60Hz (LVDS)

Video Playback

1080P@60fps via USB interface

Audio Output Power

Speaker: 2 x 5W / 8Ω @ THD+N < 10% (12V, 0.5 Vrms input)

Frequency Response

100Hz ~ 15KHz @ ±3dB (1KHz, -12dB reference signal)

⚡️ Electrical Characteristics

Input Voltage

DC 12V (Range: 10.8V ~ 13.2V), Ripple ≤ 50mVp-p

Total Board Current

3000mA (Max, excluding backlight power)

Panel Voltage (LVDS)

5V / 12V (Selectable)

USB 2.0 Current

Max 500mA per port

5V Panel Current

Normal operating current ≤ 1500mA

Standby Power

≤ 0.3W (Board only, without Wake-on-LAN)

🔌 Interface & Connectivity

Power Input (CONW2)

12V IN (4-pin, 2.54mm pitch)

Video Output (CONE1)

LVDS Panel Interface (2×15-pin, 2.0mm, gold pins)

USB Ports

CONU1: EXT-USB1 (1A rated), CONU2: EXT-USB2 (4-pin, 2.0mm sockets)

Network

RJ45 Ethernet port (100M)

Audio Output (CONA1)

Speaker output (4-pin, 2.0mm) / Line-Out port

Serial Ports

CONL4: UART0, CONL3: UART1 (4-pin, 2.0mm, with 5V output)

Control & IR (CONL2)

Keypad, Dual-color LED, IR remote input (7-pin, 2.0mm)

Backlight Control (CONE3)

LVDS Inverter connector (6-pin, 2.0mm) for BL_ON & BL_ADJUST

Panel Power (CONE2)

LVDS Power Control (2×2-pin, 2.0mm) for VCC_Panel selection

Expansion I/O

CONL5: External I2C, CONL6: External GPIO

Other

HDMI IN, TF Card slot

🌎 Environmental Requirements

Operating Temperature

0°C to +40°C

Storage Temperature

-20°C to +85°C

Operating Humidity

10% to 85% (non-condensing)

Storage Humidity

10% to 90% (non-condensing)

⚠️ Important Notes & Precautions

Certification: This board version is not intended for final product certification. Whole-machine testing and certification are required for end products.

USB Device Compatibility & Power:

USB 2.0 port supplies 5V/500mA. Devices with inrush current exceeding 500mA may cause board malfunction.
Confirm power requirements of your USB devices before connection.

Panel Power Considerations:

For 3.3V panels with inrush current ≥ 1000mA or normal current ≥ 600mA, contact our engineers for component verification.
5V panel normal operating current should be ≤ 1500mA.

ESD & Handling: This board contains ESD-sensitive components. Use proper anti-static procedures during handling, installation, and debugging.

Signal Integrity: Performance of high-speed signals (LVDS) is influenced by cable specifications and length. Test thoroughly when changing connection cables.

General Precautions:

Maintain sufficient distance from conductors to prevent short circuits.
Do not apply excessive force, twist, or disassemble the board.
Ensure all cables are correctly connected before powering on. Do not hot-plug cables.
Keep the board clean and dry. Clean with a soft, dry cloth only.
For external I2C or USB devices, or custom keypads, consult our technical personnel for compatibility and requirements.

USB Usage: While the USB interface supports most storage devices, compatibility may differ from PCs. If a device is not recognized, check its drivers. Do not unplug USB devices while files are being read to avoid system file corruption.