X450

Overview

X450 DAC+AMP Expansion Board

ITEM	DESCRIPTION
FOR USE WITH	Raspberry Pi 1 Model B+/ 2 Model B / 3 Model B / 3 Model B+
OPERATING SYSTEM	Moode Audio Player OSMC Openelec Raspbian Jessie Volumio Pi Core Player
KEY FEATURES	Ideal storage solution for Jetson Nano - 2.5"" SATA HDD/SSD Shield Supports up to 4TB 2.5-inch SATA hard disk drives (HDD) / solid-state drive (SSD) USB 3.1 Gen1 to SATA 6Gb/s bridge controller USB 3.1 Gen1 connectivity offers plug-and-play functionality on your Jetson Nano Quick file transfer with high-speed USB3.1 Gen1 connectivity from a PC or a Mac Specially-made USB3.1 bridge to connect with Jetson Nano - no additional cables needed On-board DC power jack allows to provide enough power to HDD/SSD Intelligent power management - Automatic powering off when system shutdown With 1 Female to 2 Male DC cable supplied to power both T300 and Jetson Nano USB bus-powered or powered by external power adapter LED blue indicator indicates drive status
Specification	Power supply: 6-26Vdc，≥3A recommended GPIO used : LRCK - IO19, BCK - IO18, DATA - IO21, IR - IO26, AMP mute - IO22 Analog audio input level via onboard headphone jack : 2V RMS Amplifier max output power: 2×100W at 4Ω BTL Load at 21Vdc Resolution/Sampling Rate: upto 24bit / 192KHz (Raspberry Pi I2S) PCB size 87 x 56mm
DIMENSION	PCB Size: 123mm x 79mm
NOTE	*WARNING: Do not apply power to your Raspberry Pi via the PI's Micro USB socket.

This is single output 24V 10A 250W Switching power supply, and it can provide upto 250W power output.

Generay Specification

Item	Description
Model	S-250-24
DC output voltage, current	24V, 0~10A
Wave and noise	150mVp-p
Inlet wire stability	±1%
Load stability	±1%
Efficiency	81.50%
Adjustable range for DC voltage	±10%
Input voltage range	90~132VAC / 180~264VAC by Switch
Impact current (Cold start current)	25A/114VAC 50A/230VAC
OverLoad protection	105% ~ 135% cut off the output, automatic recovery
Over voltage protection	115%~150% shut down O/P voltage, re-power on the recovery
Setup, rise, hold up time	200ms, 50ms, 16ms/230vac at full load
Withstand voltage	I/P-O/P 1.5kV I/P-FG 1.5kV O/P-FG 0.5kV 1minute
Isolation resistance	I/P-O/P I/P-FG O/P-FG 500VDC/100MΩ
Working temperature	-10℃ ~ +50℃
Dimension	215 x 115 x 50mm

Q1. How to use the pin header marked “PWR ON” , “SPK MUTE” and “AMP OFF”?.

A:

PWR ON: Short - Auto power on when power applied, Open – Using an external latching switch to control power on/off
SPK MUTE: Short – Speaker un-muted, Open – Mute enabled and it is controlled by GPIO22 with additional software setting e.g high = speaker unmuted, Low=speaker muted
AMP OFF: Short – speaker in shutdown mode, Open – Speaker in operation mode