General Board Specifications; Rfb Device Type; Set-Up Guide - Infineon MERUS MA120 Series User Manual

User manual for MA120xxx reference boards
Board overview
1.1

General board specifications

 Number of audio channels
 Audio input format:
o MA12040 and MA12070
o MA12040P and MA12070P

Supply voltage range MA12040(P)
 Supply voltage range MA12070(P)
 Maximum output current per channel MA12040(P)

Maximum output current per channel MA12070(P)
 Output power capability at 18 V PVDD:
o Peak 2 x 40 W sine 1 kHz (RMS) into 4 Ω (10 percent THD + N)
o Peak 2 x 20 W sine 1 kHz (RMS) into 8 Ω (10 percent THD + N)
o Continuous 2 x 9.0 W sine 1 kHz (RMS) into 4 Ω (less than 0.08 percent THD + N)
 Output power capability at 26 V PVDD:
o Peak 2 x 80 W sine 1 kHz (RMS) into 4 Ω (10 percent THD + N)
o Peak 2 x 40 W sine 1 kHz (RMS) into 8 Ω (10 percent THD + N)
o Continuous 2 x 9.0 W sine 1 kHz (RMS) into 4 Ω (less than 0.02 percent THD + N)

Amplifier gain (MA12040 and MA12070 only)
 Output integrated noise:
o MA12040 and MA12070
o MA12040P and MA12070P
 Dynamic range:
o MA12040 and MA12070
o MA12040P and MA12070P

Idle current consumption at 18 V PVDD:
o MA12040 and MA12070
o MA12040P and MA12070P
Note: Idle consumption is the sum of output stage current and 5 V supply current. As all the supplies are tied to
PVDD, the efficiency of the buck converter 5 V should be taken into account when measuring idle current
consumption directly from PVDD. Please refer to the MA120xx/P device datasheet for exact current figures.
1.2

RFB device type

The type of device (MA12040, MA12040P, MA12070 and MA12070P) on the RFB is printed on the top of the
device, and is also stated on the serial number label placed on the bottom side of the PCB.
1.3

Set-up guide

The RFB works out of the box with speakers, input source and power connected. No external configuration or
set-up is needed for quick start-up.
Application Note
2 x BTL or 1 x PBTL
Analog
Digital (I S)
2
5 to 18 V
5 to 26 V
6 A
8 A
20 dB or 26 dB (register configurable)
Less than 100 µV (AW)
rms
Less than 150 µV (AW)
rms
More than 100 dB
More than 96 dB
Less than 16 mA
Less than 19 mA
4 of 28 V 1.0
2019-04-28