Microphones; Audio Out; Table 6. Analog Mems Microphone Left Channel (M2) Port Assignments; Table 7. Analog Mems Microphone Right Channel (M3) Port Assignments - Renesas RA6 Series Engineering Manual

Renesas VUI Reference Solution

8.3 Microphones

This board includes a pair of analog MEMS microphones (M2 & M3, ZillTek ZTS6053). These 2 analog
microphone signals are amplified by Renesas READ2302GSP OPAMP, then fed to RA6E1 ADC channels 0
& 1. A pair of digital I2S MEMS microphone (M1 & M4, ZillTek ZTS6672) is also provided, which is
connected to RA6E1 SPI0 & SPI1 channels separately. The physical distance between each 2 microphones
is 50mm to support beamforming applications.

Table 6. Analog MEMS Microphone left channel (M2) Port Assignments

MCU Port
P000

Table 7. Analog MEMS Microphone right channel (M3) Port Assignments

MCU Port
P001

Table 8. Digital I2S MEMS Microphone left channel (M1) Port Assignments

MCU Port SPI0 Signal
P205 SSLA0
GND – for Select as left channel
GND
P111 RSPCK0
3.3V
P109 MOSI0

Table 9. Digital I2S MEMS Microphone right channel (M4) Port Assignments

MCU Port SPI1 Signal
P103 SSLB0
VDD – for Select as right channel
GND
P102 RSPCK1
3.3V
P101 MOSI1
The Digital I2S MEMS Microphone right channel is multiplexed with QSPI Flash. To use the Digital
Microphone, please short pins 2-3 on J12~J14.

8.4 Audio out

A stereo headphone jack is connected to the MCU DAC. The DAC signals are connected through an
OPAMP. The device is Renesas READ2302GSP, in ultra-small 8 pins TSSOP packages.

Table 10. Headphone Jack Pin Assignments

MCU Port
P014 (DA0)
VOICE-RA6E1 Engineering Manual Rev.1.0
June 2022
MEMS microphone Pin
1 – OUT
2 – GND
3 – GND
4 – GND
5 – VDD
MEMS microphone Pin
1 – OUT
2 – GND
3 – GND
4 – GND
5 – VDD
Audio out Signal
VOUT1
VOUT2
VOUT2
VOICE-RA6E1 Engineering Manual
MEMS microphone Pin
1 – LRC (Word Select)
2 – SELECT
3 – GND
4 – BCLK
5 – VDD
6 – DATA
7 – CONFIG
MEMS microphone Pin
1 – LRC (Word Select)
2 – SELECT
3 – GND
4 – BCLK
5 – VDD
6 – DATA
7 – CONFIG
Headphone Jack Pin
1 (Sleeve)
2 (Mono signal)
3 (Mono signal)
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