u-blox Malmo AB 072002 User Manual
Utfärdare / Issued by
Datum / Date
Beteckning / Ref.
Sida / Page
Mats Andersson
2005-03-30
cBProject-0503-17 (1)
17 (27)
Ärende / Subjekt
Godkänd av / Approved by
WCS Module User Manual
Template update: 00-12-01
1. AC or DC coupled differential output capable of driving 2V
pp
into 600 Ω, maximum load
impedance is 22 Ω.
DC bias level is 0.8 V
DC bias level is 0.8 V
The Audio-input signals has the following behavior:
1. Differential line input, input impedance 130 kΩ.
Use the left channel for mono input signal is needed only (e.g. inside the receivers).
Connector
pin nr.
pin nr.
Pin Name
Type
Description
1 NF-OUT-
INVL
Audio
Output
Output
Left audio output.
2
NF-OUT-L
Audio
Output
Output
Left audio output.
3 NF-OUT-
INVR
Audio
Output
Output
Right audio output.
4
NF-OUT-R
Audio
Output
Output
Right audio output.
5 MIC-INPUT-
INVL
Audio
Input
Input
Left audio input. Used when mono only is required.
6 MIC-INPUT-
L
Audio
Input
Input
Left audio input. Used when mono only is required.
27 MIC-INPUT-
INVR
Audio
Input
Input
Right audio input. Required for stereo input. Replaces
a VCC pin on generation 1.
a VCC pin on generation 1.
28 MIC-INPUT-
R
Audio
Input
Input
Right audio input. Required for stereo input. Replaces
a GND pin on generation 1.
a GND pin on generation 1.
3.4.3 Analog IO
The analog input signal level is between 0 – 5.5 V. This input is used for battery supervision.
The analog input signal level is between 0 – 5.5 V. This input is used for battery supervision.
Connector
pin nr.
pin nr.
Pin Name
Type
Description
8
AN-IN
Analog
Input
Input
Connected to Bluecore3-MM via a resistive voltage
divider.
divider.
3.4.4 Logic level SPI-communication
This interface is used for debugging and FW download purposes.
This interface is used for debugging and FW download purposes.
Connector
pin nr.
pin nr.
Pin Name
Type
Description