LV4904V 查看數據表（PDF） - ON Semiconductor
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LV4904V Datasheet PDF : 25 Pages
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LV4904V
2.9 Gain setting pins (GAIN0, GAIN1, GAIN2, GAIN3, GAIN4, GAIN5)
The gain can be set by setting the GAIN0 to GAIN5 pins to high or low.
In the combined I2C bus and pin setting mode, the gain settings (Table 8.2.1) established according to the I2C register
are valid when all the GAIN0 to GAIN5 pins are low. Since the initial setting of the I2C register is in mute state, mute is
the setting that is established when GAIN0 to GAIN5 are low in the initial state after reset release.
Table 2.9 shows the gain settings established according to the GAIN0 to GAIN5 pins. The gain settings established
according to the pin 6 bits and the gain settings established according to the register 6 bits are identical, so refer to Table
8.2.1 for the detailed settings.
GAIN5
H
H
H
…
H
H
H
…
L
L
L
GAIN4
H
H
H
…
H
H
H
…
L
L
L
GAIN3
H
H
H
…
H
L
L
…
L
L
L
GAIN2
H
H
H
…
L
H
H
…
L
L
L
Table 2.9 Gain settings
GAIN1
GAIN0
Gain Setting
Combined I2C Bus and Pin setting mode
Pin Setting Mode
H
H
+12.0dB
H
L
+10.5dB
L
H
+9.0dB
…
…
(settings in increments of 1.5dB)
L
L
+1.5dB
H
H
H
L
0dB
-1.5dB
…
…
(settings in increments of 1.5dB)
H
L
-79.5dB
L
H
L
L
-81.0dB
I2C register settings
Mute
2.10 Mute pin (MUTEB)
MUTEB is the low active soft mute pin that controls both the left and right channels.
In the combined I2C bus and pin setting mode, the mute setting (Table 8.2.2) established according to the I2C register is
valid when MUTEB is low. Since the initial setting of the I2C register is in mute state, mute is the setting that is
established when MUTEB is low in the initial state after reset release.
Table 2.10 shows the MUTEB function settings.
MUTEB
L
H
Table 2.10 MUTEB pin function settings
Setting
Combined I2C Bus and Pin setting mode
I2C register setting
Pin Setting Mode
Mute ON
Mute OFF
2.11 Test mode setting pins (TEST, MODE)
TEST and MODE are the test pins. TEST and MODE must be low while using the LV4904V.
Table 2.11 shows the TEST, MODE function settings.
Table 2.11 TEST, MODE pin settings
TEST, MODE
Setting
L
Setting when using the LV4904V
H
Inhibited
No.A1963-11/25
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