Changes between Version 35 and Version 36 of venice/mipi

Timestamp:

12/20/2023 06:21:48 PM (11 months ago)

Author:

Ryan Erbstoesser

Comment:

add some info about gw16157

venice/mipi

@@ -129 +129 @@
 Gateworks can also be hired to create custom audio designs. 
 
+=== GW16157 Audio Adapter
+[[Image(gw16157.jpg,300px)]]
+
+The GW16157 Audio card was designed for a specific use case and connects to the MIPI connector of a GW73xx/GW72xx providing:
+ - NXP SGTL5000 audio codec
+ - MIC to connector 
+ - LINEOUT_L to TPA3110D2 15W Class D amplifier with auto-fault recovery and GPIO control to shutdown via MIPI_GPIO1 (GPIO4_IO4 on IMX8MM)
+
+Power Amplifier
+ * Texas Instruments TPA3110D2
+ * Class D Amplifier w/PBTL Mono Output
+ * 15W @ 4 ohm with 10% THD
+ * 8-26V Supply Voltage (24VDC recommended)
+
+Codec
+ * NXP SGTL5000XNBA3
+ * Programmable MIC Gain and MIC Bias Support
+ * MIC ADC 85dB SNR
+ * Digital Audio Processing: 
+ * NXP Surround, Bass and Tone Control
+ * !Parametric/Graphic Equalizer
+ * Digital Mixer
+
+Software notes:
+ - Kernel drivers/modules: (recommended to set static if possible)
+  * snd-soc-fsl-sai CONFIG_SND_SOC_FSL_SAI SND_IMX_SOC
+  * snd-soc-sgtl5000 CONFIG_SND_SOC_SGTL5000
+  * snd-soc-simple-card CONFIG_SND_SIMPLE_CARD
+  * CONFIG_SND_IMX_SOC
+ - Device tree overlays are required 
+
+A sample script used for testing:
+{{{#!bash
+cat /proc/asound/cards # show card
+# enable lineout for 30% volume
+amixer set Lineout on
+amixer set Lineout 30%
+aplay /usr/share/sounds/alsa/Front_Center.wav
+# set capture gain to 8. Valid values: 1-15
+amixer set Capture 8
+# turn on capture
+amixer set Capture cap
+#set mic volume to 50%
+amixer set Mic 50
+# make sure digital input mux is set to I2S. Setting it to ADC routes the microphone to the speaker
+# and causes intense feedback
+amixer set "Digital Input Mux" I2S
+echo "Recording..."
+arecord -d 5 -f dat -r 48000 -vvv -c1 /tmp/test.wav
+echo "Playback..."
+aplay -f dat /tmp/test.wav
+}}}
+
+==== GW16157 Hardware
+J1 = Microphone Input. 
+ * Example Microphone: PUI Audio POW-3535L-3-LW100-B-R Link
+ * Pin 1 = Ground
+ * Pin 2 = MIC Output +
+ * Pin 3 = Ground
+
+J2 = Mono Speaker Output
+ * Example Speaker: Peerless TC5FC07-04 (4 ohm @ 5W) Link
+ * Pin 1 = Speaker - 
+ * Pin 2 = Ground (no connect)
+ * Pin 3 = Speaker +
+
+J3 = Vin Pass Through
+ * This connector can be used to simplify cabling and provide Vin to the SBC baseboard. 
+ * Pin 1 = Vin
+ * Pin 2 = GND
+ * Pin 3 = Vin
+ * Pin 4 = GND
+
+J4 = Voltage Input for Audio Amplifier (8-26V, 24V recommended)
+This should be connected to an external supply and is used by the on board audio amplifier. 
+ * Pin 1 = Vin
+ * Pin 2 = GND
+ * Pin 3 = Vin
+ * Pin 4 = GND
+
+On Board Headers:
+ * J1 & J2 = TE Connectivity 2MM-HSP-S03-VT-02-H-TB 
+ * J3 & J4 = TE Connectivity 2MM-HSP-S04-VT-02-H-TB
+
+Mating Housing:
+ * J1 & J2 = TE Connectivity 2MM-RCP-S03-BX = 2316104-3
+ * J3 & J4 = TE Connectivity 2MM-RCP-S04-BX  = 2316104-4
+
+Crimps for Housing:
+ * 2MM-RT-M-T-ST (Tin) = 2-2316113-2
+ * 2MM-RT-M-F-ST (Gold Flash) = 3-2316113-3
+ * 2MM-RT-M-M-ST (Gold 0.38um) = 4-2316113-4
+ * 2MM-RT-M-H-ST (Gold 0.76um) = 5-2316113-5