Soundwire Bus Connector; Multi-Purpose Connector - Lnk SoundWire User Manual

1.3.1.

SoundWire bus connector

The SoundWire signals (clock and data) are available on a boxed IDC 16 pin header connector
with a regular pitch of 2.54 mm (0.1"). The bottom pins are all connected to ground.
Pin
1
3
5
7
9
11
13
15
2..16
The data line bus keepers cannot be controlled individually. Either all ON or all OFF.
Electrical Parameter
SoundWire signaling level
Bus Keeper impedance
Output impedance
Input impédance
1.3.2.

Multi-purpose connector

The signals (clock and data) are available on a boxed IDC 20 pin header connector with a regular
pitch of 2.54 mm (0.1"). The bottom pins are all connected to ground.
This connector serves multiple purposes. It features an I2C interface that can either acts as a
slave or as a master (not implemented yet). There is a dedicated trigger input pin. Six of the
seven general purpose input pins can be reassigned to a multichannel PDM input & output
interface or a multichannel PCM input or output.
Electrical Parameter
GPI & I2C signaling level
Output impedance
Input impédance
SoundWire Protocol Analyzer
Signal
Clock
Data Line 0 (main)
Data Line 1
Data Line 2
Data Line 3
Data Line 4
Data Line 5
Data Line 6
Ground
Min Nominal
0.9 1.8
6950
15
1M
Min Nominal
0.9
47
47k
User Manual V1.0
Direction
Input & output
Input & output
Input & output
Input & output
Input & output
Input & output
Input & output
Input & output
Max Units
3.2 V
1M Ohms
Ohms
Ohms
Max Units
3.2 V
Ohms
Ohms
Remarks
Programmable by steps of 50 mV
Bus keeper can be deactivated
When Bus Hold is disabled
Remarks
Programmable by steps of 50 mV
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