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Specifications
Processor
- Qualcomm QCM2290, 4x Arm Cortex-A53
- Quad-cores at 2.0GHz with 512KB L2 cache
Memory
- 1804MHz clock （2*16-bit）BUS LPDDR4x SDRAM design
- Built-in eMMC 5.1 Flash,
- 16GB eMMC + 2GB LPDDR4x
- Or 8GB eMMC + 1GB LPDDR3
SD
- SDC2 external interface supports SD3.0 TF card (Maximum 256G)
- Hot-join support
Operating System
- Support Android 12
System Upgrade
- Upgrade via USB interface
- Support forced download
Display
- One 4-Lane MIPI_DSI interface, the highest resolution is 720*1680, HD+.
- One 2-Lane Display Compatible Connector.
- Micro-HDMI Port
Camera
- Two CSI MIPI configurable 4/4 or 4/2/1
- Single ISP: 16 MP 30 ZSL; dual ISP: 25 MP 30 ZSL
- Real time sensor input resolution: 25MP or 13MP+13MP
Video Codec
- Encode: 1080p30 8-bit HEVC (H.265), H.264
- Decode: 1080p30 8-bit H.264, HEVC (H.265), VP9
- Concurrency: 1080p30 decode + 720p 30 encode
Audio
- One 3.5mm Stereo Headphone + MIC port
- 1-Channel Digital Audio Interface I2S: Support Master- and Slave-Mode
- 3-Channel Analog Audio Input
- Master Microphone MIC1: Differential Input
- Headphone Microphone MIC2: Single-end Input
- De-noise Microphone MIC3: Differential Input
- 4-Channel Digital Microphone Input
- 3-Channel Analog Audio Output
- Headphone: Class AB Amplifier Stereo Output
- Receiver: Class AB Amplifier Differential Output
- Lineout: Class AB Amplifier Differential Output
Audio Codec
- MP3, AAC, He-AAC v1, v2, FLAC, APE, ALAC, AIFF
Voice Codec
- EVS, EVRC, EVRC-B, and EVRC-WB
- G.711 and G.729A/AB
- GSM-FR, GSM-EFR, and GSM-HR
- AMR-NB and AMR-WB
USB
- Support Two USB 3.0 Ports
- Support Two USB2.0 Ports
UART
- Support up to 3 Serial Ports
- A 2-Wire Serial Port for Debug
- Two 4-Wire Serial Ports support hardware flow control, High-speed up to 4Mbps.
I2C
- Support up to ten I2C for touch screen, camera, sensor, and other peripherals
SPI
- Support up to 2*SPI interfaces, support master mode, the highest rate 50MHz
UIM Card
- Support Dual Card Dual Standby: 1.8V/3.0V Dual Voltage Adaptive
Power Level
- Class 4 (33dBm±2dB) for EGSM850
- Class 4 (33dBm±2dB) for EGSM900
- Class 1 (30dBm±2dB) for DCS1800
- Class 1 (30dBm±2dB) for PCS1900
- Class E2 (27dBm±3dB) for EGSM850 8-PSK
- Class E2 (27dBm±3dB) for EGSM900 8-PSK
- Class E2 (26dBm±3dB) for DCS1800 8-PSK
- Class E2 (26dBm±3dB) for PCS1900 8-PSK
- Class 3 (24dBm+1/-3dB) for WCDMA bands
- Class 3 (23dBm±2dB) for LTE-FDD bands
- Class 3 (23dBm±2dB) for LTE-TDD bands
LTE Features
- Support 3GPP R10 CAT4 FDD and TDD
- Support 1.4 to 20 MHz RF Bandwidth
- Support Downstream 2×2 MIMO
- FDD: the maximum 150Mbps (DL) / the maximum 50Mbps (UL)
- TDD: the maximum 150Mbps (DL) / the maximum 35Mbps (UL)
UMTS Features
- Support 3GPP R8 DC-HSDPA/HSPA+/HSDPA/HSUPA/WCDMA
- Support 16-QAM, 64-QAM and QPSK modulation
- DC-HSDPA: maximum 42Mbps (DL)
- HSUPA: maximum 5.76Mbps (UL)
- WCDMA: maximum 384Kbps (DL) / maximum 384bps (UL)
GSM Features
- R99
- CSD: 9.6Kbps, 14.4Kbps
- GPRS: Support GPRS Multi-Slot Level 33(Default 33)
- Coding Format: CS-1, CS-2, CS-3, and CS-4
- Maximum 85.6Kbps (UL) / Maximum 107Kbps (DL)
- EDGE: Support EDGE Multi-Slot Level 33(Default 33)
- Support GMSK and 8-PSK modulation and coding Methods
- Downlink Coding Format: CS 1-4 and MCS 1-9
- Uplink Coding Format: CS 1-4 and MCS 1-9
- The maximum 236.8Kbps (UL) / The maximum 296Kbps (DL)
WLAN Features
- 2.4G/5G Dual Frequency Range, Support 802.11a/b/g/n/ac,
- Maximum 433Mbps
- Support Wake-on-WLAN (WoWLAN)
- Support ad-hoc Mode
- WAPI supports SMS4 Hardware Encryption
- Support AP Mode
- Support Wi-Fi Direct
Bluetooth
- BT2.1+EDR /3.0 /4.2 LE/5.x
Satellite Positioning
- GPS / GLONASS / BEIDOU / Galileo
Power Supply
- Voltage range: 4.5V~5.5V
- Type-C Power Inlet port
Physical Size
- Size: 175 X 95 mm
Our Motivation
Inspired By Raspberry Pi
The Dolphin board is inspired by and progressing itself as an enterprise substitute to Raspberry Pi, to achieve a few custom requirements of the end users.