Audio Connectors - Seco SBC-C20 User Manual

Audio connectors

SBC-C20 board offers many possibilities for audio connection, all of them controlled by the I2S Audio Codec type TLV320AIC3204IRHBR.
TRRS Audio jack- CN31
Pin Signal
TIP Headphone Out Left Channel
RING1 Headphone Out Right Channel
RING2 GND
SLEEVE MIC_IN
Line Out, HP Out Connector
CN32
Pin Signal
1 LINE_OUT_L_FILT
2 GND
3 LINE_OUT_R_FILT
4 GND
5 HP_OUT_L_FILT
6 GND
7 HP_OUT_R_FILT
8 GND
SBC-C20
SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
In order to reduce the space dedicated to connectors, there is a TRRS Combo Audio Jack, i.e. a
single jack which offer both stereo Line Out and Mic In functionalities.
Such TRRS Combo Audio jack can be used with any 4-poles 3.5mm diameter audio jack, with
pinout compatible with the most recent Headsets, shown in the table on the left.
Additionally, it is available a dedicated output connector carrying out Headphone and Line-Out stereo
outputs
For this purpose, the connector used is CN32, which is a 8-pin p1.27mm connector type Molex p/n
53398-0871 or equivalent, with pinout shown in the table on the left.
Mating connector: MOLEX 51021-0800 receptacle with MOLEX 50079-8000 female crimp terminals.
LINE_OUT_L_FILT: Left line output, ac coupled.
LINE_OUT_R_FILT: Right line output, ac coupled.
HP_OUT_L_FILT: Headphone Left output, ac coupled
HP_OUT_R_FILT: Headphone Right output, ac coupled
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