SM5879AV Datasheet, PDF (13/20 Pages) Nippon Precision Circuits Inc – 3rd-order , 2-channel D/A Converter

SM5879AV
Selection and Setting of Functions
SM5879AV offers a variety of functions. Fundamen-
tally, there are two methods available for selecting
and setting these functions.
One method is using an external input pin; this is
called parallel setting. The other method is by using
the microcontroller interface, which is called micro-
controller setting.
Microcontroller interface refers here to serial data
transfer from the microcontroller using the three pins
MDT, MCK, and MLEN.
These two methods of setting and selection are set by
the P/M pin.
When P/M is HIGH, parallel setting is used.
When P/M is LOW, microcontroller setting is used.
Table 1. Selection and Setting of Functions
Function
Bass boost
Bass boost detection output
Deemphasis filter
Soft mute
Attenuator setting
Monaural setting
Function Setting Methods
Parallel setting
Related external pin name
(When P/M is HIGH)
Microcontroller setting
Related flag
(When P/M is LOW)
BB1, BB2
FBB1, FBB2
None
Output to BBON
DEEM
FDEM
MUTE
None
(Enabled by attenuator)
None
7 bits (A6 - A0)
None
MONO, CSEL
Notes
Bass boost
Bass boost detection output
Deemphasis filter
Soft mute
Attenuation
Stereo/mono output setting
NIPPON PRECISION CIRCUITS—13