Wet Sounds A-Link Mk2 Manuel utilisateur

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)

Wet Sounds A-Link Mk2

Mech Overview

Eleven Engineering Inc.

072519

Front View Side View

150 mm

Motherboard and FE

antenna (FE Antenna

in upper 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 this side of motherboard

SKAA

compatible

badge on

back panel

No metal parts

allowed in top half

of product (the

antenna region)

19 mm28 mm

Wet Sounds 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

thick

24.0 mm

Wet Sounds A-Link Mk2

Windshield mount and pigtail detail

Eleven 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)

Cable Split point

Are clips

required to

fasten the

cable ?

Dashboard

4 Buttons

In membrane

keyboard

3 LEDs - light pipes with domes

which protrude up and out of the

enclosure wall and are heavily

frosted — key point is to get the

LED light up and out of the

enclosure so it’s more visible in

bright sunlight.

Membrane

button panel is

sealed and water

proof

Notes

•Buttons have a “clicky” , responsive tactile feel

(to enable multi-click commands)

•Membrane is UV stable, 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 configuration

Eleven Engineering Inc.

072519

SKAA Indicator

LED (multi-color)

Power LED

RED = transmit

GREEN = receive

DIM = VO/sleep

OFF = off

Bond Button with

Bond Icon (see next

page for functions)

Batt LED (orange)

FLASH = low batt

SOLID = charging

OFF = other

Power Button

HOLD = on/off

CLICK = Tx / Rx mode change

Volume up/down buttons

SKAA Icon near UI panel — can be subtle

for example gloss black on matte black

SKAA Bond Button / SKAA Indicator

Standard Definition

Eleven Engineering Inc.

021418

Wet Sounds A-Link Mk2

Eleven Engineering Inc.

Signal Block Diagram

072519

R G

FE Antenna

Vertical

orientation

Ginseng

SKAA

Indicator

3-color

+/-

Volume

Buttons

Bond

Button

I2S

Power

LED

I2C

I2S

Analog

Stereo Input Analog

Stereo Out

ADC

DAC Amp

Power

Down

Prep

Soft

Power

Batt

Volts

ADC

hVOL bVTR

80% 50% 40%

How SKAA Volume Works

hVOL is “Global” volume which

mirrors the host device volume

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 volume table

(customizable) residing inside the Ginseng and

the resulting value is sent out to the DAC via

I2C as a hardware volume control command

I2C volume

command to

DAC

3.5 mm TRS

plug

3.5 mm

TRS jack

bVTR

Standby Low

Batt

R G

Notes

•The BATT LED is shown on the power

block page

•The POWER BUTTON is shown on the

power block page

Bridge

Ground

nVOL

MUX

Gnd

Loop

Sense

Select

Source DC Bus

~3.7 VDC

Switching

Regulator

Power

button

Wet Sounds A-Link Mk2

Eleven Engineering Inc.

Power Block Diagram

072519 +3.3V DC Bus

†Power

Down

Prep

enable

FET

Digital

Ground

Analog

Ground

3.7 V Li-Po

Battery Pack

5VDC

Orange

Charge

includes

Hi/Lo V

protect

Micro

USB 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/buzz

avoidance) happens only at power

up and when mode (Tx/Rx) is

toggled

•The unit is configured to be able to

operate in either Tx or Rx mode

while charging

•Some users may opt to keep their

units connected to 5V power at all

times — this mode of operation is

supported

†BATT!

Volts

Standby

Chip:

Ginseng

ADC

DAC

SKAA

Indicator

Power LED

ON Tx

√

Bright Red

RF off

√

Dim Red

ON Rx

√

Bright Green

Standby

√

Bright Green

Sleep

RF 33%

duty cycle

Dim Green

OFF

Chip Power

ON!

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

OFF

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)

ON!

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!

Standby

Li-Po Battery

Capacity 1 cell (mAh)

600

Nominal Volts 1 cell

3.7

Energy 1 cell (mWh)

2220

Qty Cells in Pack

Energy in Pack (mWh)

2220

Reg. Efficiency (%)

90%

Available Energy (mWh)

1998

Operational Mode

Transmit

Receive

Ginseng SiP (mW)

220

150

ADC (mW)

30.5

DAC Amp (mW)

Other (mW)

Whole Product (mW)

280.5

240

Est. Run Time (hours)

7.1

8.3

Supply

Demand

Notes

•Dimensions of the LiPo flat pack

battery are shown in mech detail slide

early in this document

Wet Sounds A-Link Mk2

Battery Life Calculation

Eleven Engineering Inc.

072519

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