background image

Standby

Chip:

Ginseng

ADC

DAC

SKAA 

Indicator

Power LED

ON Tx

-

-

Bright Red

VO

RF off

-

-

Dim Red

ON Rx

-

Bright Green

Standby

-

-

Bright Green

Sleep

RF 33% 

duty cycle

-

-

-

Dim Green

OFF

-

-

-

-

-

Chip Power

ON

Rx

Tx mode (Batt Power)

Rx mode (Batt Power)

10 min 

after loss 

of Bond

20 min after 
entering 
Standby

in Standby state, 
Ginseng shuts off the 
ADC, DAC and 
buffers 

“Sleep” is a power 
saving state for 
SKAA receivers.  
Sleep is triggered by 
a loss of Bond. 

In Sleep state, the 
SKAA receiver 
improves on the 
power saving 
performance of 
Standby state by 
also duty cycling the 
SKAA radio.  You can 
tell the unit has gone 
to sleep when the 
SKAA indicator shuts 
off and the Power 
LED dims 

Powering off certain 
chips will be effected 
by holding them in 
RESET 

ON/OFF is achieved 
by a press & hold of 
the Power Button by 
the user (this 
transition is not 
shown in these 
power state 
diagrams)

Bond 
Restored 
or User 
clicks any 
button

VO

OFF

ON

Tx

2.5 min 

after 

Silence 

Detected

20 min after 
entering VO

Audio 
Detected 
or User 
clicks any 
button

OFF

LOW 
BATT

LOW 
BATT

Wet Sounds A-Link Mk2 

Eleven Engineering Inc. 

Power States 

072519

Rx mode (External Power)

60 min after 
entering 
Standby

Sleep

Notes 

“VO” means Virtual Off —this is a power saving 
state for SKAA transmitters, triggered by lack 
of audio (silence). 

In VO state, Ginseng’s RF section is shut off 
causing all Bonds to drop (all Bonded SKAA 
receivers are dropped) 

“Standby” is a power saving state for SKAA 
receivers. 

Tx mode (External Power)

VO

ON

Tx

2.5 min 

after 

Silence 

Detected

Audio 
Detected 
or User 
clicks any 
button

Bond 
Restored or 
User clicks any 
button

Bond 
Restored 
or User 
clicks any 
button

10 min 

after loss 

of Bond

ON

Rx

Standby

Summary of Contents for A-Link Mk2

Page 1: ...Wet Sounds A Link Mk2 Preliminary ID concepts provided by Wet Sounds Eleven Engineering Inc 072519 Note no metal parts allowed in top half of product the antenna region...

Page 2: ...per section Strain Relief and pigtail cable Membrane Keypad 4 Buttons and 2 LEDs LiPo Flat Pack battery located here Windshield mount clip points 4 All components except for UI components mounted on t...

Page 3: ...s A Link Mk2 Motherboard PCB footprint and Batt dimensions Eleven Engineering Inc 072519 130 0 mm PCB is 1 6 mm thick 24 0 mm Components top side buttons and LEDs bottom side 65 0 mm Batt is 8 mm thic...

Page 4: ...en Engineering Inc 072519 Boat Windshield Suction cup windshield mount IN 3 5 mm Stereo male plug OUT 3 5 mm Stereo female jack Power Micro USB female jack 1 meter cable length before split point Cabl...

Page 5: ...ble sealed and water proof LED light pipes are embedded in enclosure wall adjacent to membrane keypad these light pipes do not run through the membrane itself Wet Sounds A Link Mk2 Keypad UI configura...

Page 6: ...SKAA Bond Button SKAA Indicator Standard Definition Eleven Engineering Inc 021418...

Page 7: ...lume whenever possible It is maintained and stored in the SKAA transmitter bVTR is Local volume which is stored in the SKAA Receiver The volume buttons always affect bVTR nVOL is transformed through a...

Page 8: ...Jack 3 3V to motherboard Low BATT Bridge Ground Soft Power Gnd Loop Sense BATT LED Notes Signals marked with connect to the Signal Block page Ground Loop detection smart splitting of grounds for hum...

Page 9: ...OFF is achieved by a press hold of the Power Button by the user this transition is not shown in these power state diagrams Bond Restored or User clicks any button VO OFF ON Tx 2 5 min after Silence D...

Page 10: ...nergy mWh 1998 Operational Mode Transmit Receive Ginseng SiP mW 220 150 ADC mW 30 5 DAC Amp mW 60 Other mW 30 30 Whole Product mW 280 5 240 Est Run Time hours 7 1 8 3 Supply Demand Notes Dimensions of...

Page 11: ...er Electrical 1 75 Other Mechanical 1 00 Total 20 05 BOM SKU Cost Mk2 2 pack 40 10 Packaging Manual 1 30 LOP at 18 7 45 Total manufactured 2 pack 48 85 Manufacturing Testing Notes 1 All figures are US...

Page 12: ...um load required at output 1k ohms Frequency Range 20 Hz 20 kHz THD 0 03 SNR 88 dB A weighted Audio channels 2 Digital Resolution 16 bits x 48 kHz Max receivers per transmitter 4 Latency 36 ms SKAA Pr...

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