LV4904V SANYO [Sanyo Semicon Device], LV4904V Datasheet - Page 8

• Manufacturer Part Number: LV4904V
• Description: Digital Input Class-D Power Amplifier
• Manufacturer: SANYO [Sanyo Semicon Device]

1. Mode Switching (combined I
1.1 Description of modes
1.2 Mode setting methods
Figure1-2 Placing the IC in pin setting mode
DFORM
MCKFS
NSORD
Combined I
Pin setting mode
SRATE
Combined I
Pin setting mode
Symbol
MDIDX
IDPEN
MUTE
PSTP
GAIN
In this mode, the function settings can be established according to both the I
settings, the settings established according to the I
settings established according to the pins are enabled.
In this mode, the LV4904V is controlled only by pin settings. This has the advantage of not requiring the I
for control purposes, but the parameters that can be set are limited. Table 1.1 below lists the differences between
the items that can be set through the I
The combined I
SCL=SDA=low. However, for this to happen, it is necessary that proper clocks have been input from the MCK
pin.
The pin setting mode is established when RSTB is set from low to high in the SCL=SDA=low state. However, for
this to happen, it is necessary that proper clocks have been input from the MCK pin.
Input data format
Master clock (MCK) rate
Input data sampling rate
Gain controller setting
Muting
PWM output stop setting
50% pulse setting during mute
Modulation index setting
Noise shaping orders
2
2
C bus and pin setting mode
C bus and pin setting mode
2
C bus and pin setting mode is established when RSTB is set from low to high in a state other than
Description
RSTB
RSTB
SCL
SDA
SCL
SDA
Table 1.1 Differences between combined I
Figure1-1 Placing the IC in combined I
2
C bus and pin setting mode
2
C bus and those that can be set using only the pins.
4 rates available (256fs, 384fs, 512fs, and 768fs)
7 formats available
32 kHz to 192 kHz
2-channel independently controllable
2-channel independently controllable
2-channel independently controllable
ON or OFF setting enabled
87.5%
Fifth order
LV4904V
100% switchable
seventh order switchable
Settings Using the I
2
C bus registers are enabled; with the other pin settings, the
pin setting mode)
2
C bus and pin setting mode
2
C bus and pin setting mode
2
C Bus
Combined I
Pin setting mode
2
2
C bus and pins. With some pin
C bus and pin setting mode
2 formats available
2 rates available (256fs and 512fs)
44.1 kHz to 96 kHz
2-channel common control
2-channel common control
2-channel common control
ON fixed
87.5% fixed
Seventh order fixed
Settings Using the Pin
No.A1963-8/25
2
C bus