User Manual

BM62/64
Preliminary
DS60001403C-Page 16
 2017 Microchip Technology Inc.
The DSP parameters can be configured using the DSP
tool. For additional information on the DSP tool, refer to
the “IS206X DSP Application Note”.
2.2 Codec
The built-in codec has a high signal-to-noise ratio
(SNR) performance and it consists of an ADC, a DAC
and an additional analog circuitry.
Note: The internal codec supports 16-bit resolu-
tion, by adding trailing zeros in LSBs 24-
bit I
2
S port requirements can be met.
Figure 2-3 through Figure 2-6 illustrate the dynamic
range and frequency response of the codec.
FIGURE 2-3: CODEC DAC DYNAMIC RANGE
FIGURE 2-4: CODEC DAC THD+N VERSUS INPUT POWER
Note: The data corresponds to the 16 Ohm load with 2.8V operating voltage at +25°C room temperature.
Note: The data corresponds to the 16 Ohm load with 2.8V operating voltage at +25°C room temperature.
Note: The DSP tool and “IS206X DSP Applica-
tion Note” document, are available for
download from the Microchip web site at:
www.microchip.com/BM62 and
www.microchip.com/BM64.