Table of Contents
Advertisement
User manual for MERUS™ evaluation boards
EVAL_AUDIO_MA12070_B and EVAL_AUDIO_MA12070P_B
Setup guide
Table 1
EVK headers and connectors
Name
MSEL0
MSEL1
/CLIP
/ERROR
CLKMS
AD0 AD1
B2_EN
PVDD MEAS
PVDD MEAS
5V MEAS
3V3 MEAS
GND GND
SCL SDA
CH0
CH1
JACK
DIGITAL AUDIO1
User Manual
Schem. ref.
Description
JMSEL
Selects in conjunction with MSEL1
the output configuration (see Table
2).
JMSEL
Selects in conjunction with MSEL0
the output configuration (see Table
2).
CLIP
Audio clipping indicator (open drain
output), pulled low when clipping
occurs.
ERR
Error indicator (open drain output),
pulled low when an error occurs.
CLKMS
Selects clock mode.
ADD
Selects I
B2_EN
When removed, enables 5 V and
3.3 V supply buck converters.
JPVDD1
Breaks PVDD for PVDD current
measurements.
JPVDD2
Breaks PVDD for current
measurements.
5V0
Breaks 5 V supply for 5 V circuit
current measurements.
3V3
Breaks 3.3 V supply for 3.3 V circuit
current measurements.
JGND
Two ground connections.
I2C
I
2
C bus serial clock and data.
SPK_LEFT
Channel0 speaker connection.
SPK_RIGHT
Channel1 speaker connection.
JACK_3.5mm
Single-ended, stereo analog audio
input.
J2
I
S digital audio input.
2
Note: See Section 2.2 for setting up.
C address (see Table 3).
2
6 of 23
Comment
Default: 2CH BTL.
Jumpered high (H).
Default: 2CH BTL.
Jumpered low (L).
I/O pin. Do not jumper.
I/O pin. Do not jumper.
M = Master clock (non-P
versions). S = Slave
(external) clock (P
versions).
Default: I
C address
2
0B100000. Both
jumpered low (GND).
Default: Not jumpered
(enabled)
Default: Jumpered.
Parallel with JPVDD2.
Default: Jumpered.
Parallel with JPVDD1.
Default: Jumpered.
Default: Jumpered.
Default: Not jumpered.
I/O pin. Do not jumper.
Three-way screw
terminal with positive
and negative speaker
outputs. Center GND.
Three-way screw
terminal with positive
and negative speaker
outputs. Center GND.
Tip = CH0.
Ring = CH1.
Sleeve = GND.
I/O pins. Do not jumper.
V 1.0
2023-03-02
Advertisement
Table of Contents
