Hardware Manual (LS322, LS422)
Contents
1. 5V level for the DDR SDRAM and the 1 2V level for the CPU core voltage BCM7208 CPU The LS322 and LS422 utilize a BCM7208 Multimedia CPU Built in Flash The boot code in the BCM7208 instructs it to continue the boot process by reading additional code from the onboard NAND flash which can be updated in the field from either SD or USB storage Part of the NAND flash is also used to hold non volatile parameters The contents of the boot flash are copied into the SDRAM The CPU then jumps to the boot code SDRAM The LS322 and LS422 each contain a single bank of 2Gb 256MB DDR SDRAM When the BCM7208 boots it will copy the code from the NAND flash device into the SDRAM and then execute the code from the SDRAM The SDRAM runs at a clock rate of 667MHz with a data rate of 1333MHz Audio Outputs The LS322 and LS422 each have a single high quality audio DAC device which takes in digital audio signals from the CPU in 12S audio format The AUD_LRCIN is the framing signal for the audio and runs at the frequency of the audio source usually either 44 1KHz or 48KHz The AUD_BITCLK signal is typically 32 times higher than the AUD_LRCIN 10 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015 Th2. BrightSign LLC 2015 LS322 LS422 User Manual and Operations Guide DIMENSIONS 10540 5 5340 5 ro e gz 99000000091 em 0000000 S 12 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing O BrightSign LLC 2015 RECOMMENDED MOUNTING PROCEDURE The LS322 LS422 can be mounted on a wall using the brackets attached to each side BrightSign recommends mounting the device using four screws with a major diameter between 3 5mm and 4 2mm BrightSign does not recommend using nails to mount the device 13 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015
3. 015 LS322 LS422 User Manual and Operations Guide Block Diagram 12V regulated 1A 1 triple switching regulator 2 single regulators VGA RGB HDMI OUT Video 1 5V 2 5V 3 3V Low 1 5A 0 5A 2A Voltage Reset SPD SPD2 optical out HP AMP audio out audio in DDR3 SDRAM 128Mx16 2 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015 LS322 Front e DA15 GPIO e SD SDHC SDXC flash card slot Left e GPIO service button e GPIO reset button Right e USB 2 0 Back e 12V 1A power connector e SPDIF out e RJ45 Ethernet e 3 5mm audio out All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing O BrightSign LLC 2015 3 LS422 Front e DA15 GPIO e SD SDHC SDXC flash card slot Left e GPIO service button e GPIO reset button Right e USB 2 0 Back e 12V 1A power connector e SPDIF out e RJ45 Ethernet e HDMI out 3 5mm audio out All information provided in this reference manual applies to products under development The characteris
4. BrightSign HARDWARE MANUAL LS322 LS422 BrightSign LLC 16780 Lark Ave Suite B Los Gatos CA 95032 408 852 9263 www brightsign biz TABLE OF CONTENTS ENEE ees 1 Block AN Ai EE 2 e EE 3 EE d Hardware Ia ln EE 5 1 0 nn A 5 3 5mm Stereo Connectors ee EE EENEG 5 SPDIF TOSLink Connector E 6 USB ele 6 DAIS GPIO E 6 UA Ele ME t ae E E E E E 8 Sn O E E E E 8 STs E B D E 8 Enviornmental and Power Usage sss ss ssssssssss sese sees senenn ennenen ennenen ee 9 Ale 10 Power ere 10 ENIT 10 TR MN 10 AUdI d A Et 10 3 o an 11 Reset Switeh GP1O Button di ida 11 NANA EEN 11 O A o O E o et een ee eee 11 USB2 A A A A A 11 DimensSionS A ctincncnianiemisecnisdainaaswaidesinjesaiacadaduaieendsiseausunissetaansdaavacdmmnbaeenedesmadwnvdasksmauaneeae 12 Recommended Mounting Procedure ss ssssssssssssssssssssss sese sees eenn eenn nenen 13 LS322 LS422 User Manual and Operations Guide OVERVIEW The LS322 and LS422 are commercial grade media players that enable consistent high quality demonstration of A V content in retail environments This hardware reference manual specifies the hardware interfaces on the LS322 and LS422 1 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2
5. BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015 A button LED IR board can be used to demonstrate the GPIO and IR functions on a BrightSign player This board is built by a third party manufacturer and can be purchased upon request RJ45 Ethernet The LS322 and LS422 have a single 10 100 RJ45 port for networking The maximum length for the Ethernet cable is 100 meters The following table illustrates the pinout of the RJ45 pin Description pin Description 1 TX 2 TX 3 RX 4 RC to ground 5 RC to ground 6 RX 7 RC to ground 8 RC to ground SD Port The LS322 and LS422 have a card slot that supports SD SDHC and SDXC cards It is capable of streaming video at 25Mbps or streaming three stereo PCM audio tracks simultaneously On Board LEDs LS322 and LS422 have a single red LED located on the side of the device to indicate that the power is on All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015 8 ENVIORNMENTAL AND POWER USAGE The LS322 and LS422 are designed to be used between 0 C and 40 C at 90 maximum relative humidity non condensing The power supp
6. acturing unless otherwise agreed to in writing BrightSign LLC 2015 If one BrightSign player is driving the inputs on another BrightSign player then you can drive at most three inputs from one output The following calculations explain this limitation Note The GPIO outputs have 1002 series resistors the GPIO inputs have 1K pullup resistors to 3 3V and the input threshold on the 541 chips is 2V high and 8V low The high voltage is not problematic but the low voltage can be if there are too many inputs connected to one output 1 out driving 1 in V 3 3 100 100 1 000 0 3 1 out driving 2 in V 3 3 100 100 500 0 55 1 out driving 3 in V 3 3 100 100 333 3 0 76 1 out driving 4 in V 3 3 100 100 250 94 This is too high so the maximum is one output driving three inputs The following table illustrates the pinout of the DA15 on LS players pin Description pin Description 1 IR blaster input 2 Ground 3 Button 6 I O 4 Button 5 I O 5 Button 3 I O 6 Ground 7 Button 1 I O 8 3 3V output at 500mA 9 Ground 10 Button 7 I O 11 Ground 12 Button 4 I O 13 Button 2 I O 14 Ground 15 Button 0 I O Here is the DA15 female connector as viewed from the front 7 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice
7. e audio output is fed through an amplifier and sent directly to the audio output jack It can drive a 32Q load with a 2V RMS signal On Board Switch The on board switch is connected to the GPIO02 The GPI002 is pulled low when the service SVC button is pressed Conversely a pull up on the button normally sets the GPIOO2 to be pulled high Reset Switch GPIO Button The on board switch is connected to the reset button Pressing down the reset button will send a reset signal to the system software NAND Flash BrightSign players have a built in NAND flash All the code for the player is stored on the NAND flash It may also be possible to store some content on the NAND flash which is connected directly to the BCM7208 Ethernet The 10 100 Base T Ethernet is implemented on the LS322 and LS422 by directly interfacing with the BCM7208 The player has on board Ethernet magnetics and termination for the RJ 45 cable USB 2 0 The USB 2 0 high speed host controller is implemented internally in the BCM7208 SOC chip The board utilizes over current protected switches that can be used to turn the power to USB devices on or off or to detect over current situations 11 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing
8. eo audio streams Muting this connector produces digital silence USB Host Ports The LS322 and LS422 each have a single USB 2 0 host port capable of providing 500mA of power Each port also supports HID and devices can be hot swapped without the need to reboot The following table illustrates the pinout of the USB host port pin Description pin Description 1 VBUS 2 D 3 D 4 Ground DA15 GPIO The LS322 and LS422 have a DA15 female switch led connector This connector allows the player to control external LEDs or other devices requiring 24mA of current or less Connect the LED outputs to the LED ANODE and connect the LED CATHODE to the ground If you want to connect another device then the output is capable of sourcing or sinking up to 3 3V at 24mA but there is a series resistor of 100Q in each line The connector also allows the connecting of external contact closures to the ground In order to connect a switch connect one side of the switch to the switch input and connect the other side to one of the ground pins on the DA15 connector The connector can also supply 3 3V at up to 500mA to an external device The 3 3V output is polyfuse protected and can source up to 500mA 6 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manuf
9. ly on the BrightSign LS series is 12W and 12V at 1A Note 7A at 12V is approximately 12W When an LS322 or LS422 is sitting idle it draws approximately 220mA When an LS422 is playing a 1080p24 H 264 video over HDMI it draws approximately 270mA The remaining 720 to 770mA of available power can be used by peripherals connected to the player Do not connect any combination of peripherals that will exceed this amount of draw If more than 1A total is drawn the external power supply will shut down due to overcurrent conditions The unit will not be damaged but it may reboot or not operate properly until the overload is removed The remaining 720 to 770mA can be shared in any way among the following connectors Connector Power Usage Ethernet Approx 180mA when transferring data USB Max 500mA DA15 3 3V 500mA HDMI 5V Max 500mA 6 LED outputs on the DA15 Up to 24mA each 9 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing O BrightSign LLC 2015 THEORY OF OPERATION Power Supply There are five voltages present in the player 5V 3 3V 2 5V 1 5V and 1 2V The 3 3V level for the USB port is created from 12V using a switching regulator Similar regulators are used to create the 2
10. tics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015 4 HARDWARE INTERFACES HDMI Output The LS422 has a single HDMI connector that is compliant with HDMI 1 3 A V standards It is capable of outputting 1080i and 720p video resolutions pin Description pin Description 1 TX2p 2 Ground 3 TX2n 4 TX1p 5 Ground 6 TX1n 7 TXOp 8 Ground 9 TXOn 10 TXCp 11 Ground 12 TXCn 13 CEC 14 NC 15 DDC SCL 16 DDC SDA 17 Ground 18 5V DDC 19 HPD Hot Plug Detect 3 5mm Stereo Connectors The LS322 and LS422 have a 3 5mm stereo connector for variable analog audio output The full scale voltage output of the audio is 2V RMS The minimum load impedance of the audio connector is 320 The audio connector has the following pinout e Tip Left audio e Ring Right audio e Base Ground for audio signal 5 All information provided in this reference manual applies to products under development The characteristics and specifications of these products are subject to change without notice BrightSign assumes no obligation regarding future manufacturing unless otherwise agreed to in writing BrightSign LLC 2015 SPDIF TOSLink Connector The LS322 and LS422 have a SPDIF connector capable of outputting 16 bit 48 kHz AC3 5 1 encoded ster
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