ba3853bfs ROHM Co. Ltd., ba3853bfs Datasheet - Page 10

no-image

ba3853bfs

Manufacturer Part Number
ba3853bfs
Description
Stereo Sound Controller Ic
Manufacturer
ROHM Co. Ltd.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ba3853bfs-E2
Manufacturer:
TI
Quantity:
2 624
Part Number:
ba3853bfs-E2
Manufacturer:
ROHM
Quantity:
2 000
Part Number:
ba3853bfs-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
FApplication notes
(1)
Operation of the basic functions of the application exam-
ple circuit are guaranteed if operated within the stipulated
power supply voltage and ambient temperature ranges.
Rohm cannot guarantee the ratings for the electrical
characteristics, but these will not change radically if the
circuit is operated within the stipulated power supply volt-
age and ambient temperature ranges.
(2)
Both the main volume and fader volume circuits have a
built-in mute circuit. Mute is applied to all output pins.
Mute logic
(3)
(1) The loudness circuit is designed to work together
with the main volume.
(2) Maximum loudness change occurs when the signal
attenuation is *30dB or lower. Up to a signal attenuation
of *10dB, the circuit is designed to have a change in
loudness of 0dB.
(3) For signal attenuation between *10dB to *30dB,
the change in loudness is smaller approaching *10dB,
and gets larger approaching *30dB.
(4) When loudness is operated during tone adjustment,
if the amount of boost due to the combined tone boost
and loudness exceeds the maximum boost, the circuit
design ensures that the amount of loudness change will
not exceed the maximum amount of tone boost (see
Figs. 6 and 7).
(5) Loudness is on when the pin voltage is below 2.5V,
and off above 2.5V.
800
Audio ICs
Power supply voltage range
Mute circuits
Loudness control
(4)
(1) Balance control curve
The balance control curve has been designed so that at
above 2.8V, channel 1 (1-Fr, 1-Rr) is attenuated, and at
below 2.2V, channel 2 (2-Fr, 2-Rr) is attenuated.
(2) Fader control curve
The fader control curve has been designed so that at be-
low 2.2V, the front (1-Fr, 2-Fr) is attenuated, and at above
2.8V, the rear (1-Rr, 2-Rr) is attenuated.
(5)
Buffers are used before and after the signal input and
output pins.
Balance / fader
Input / output circuits
BA3853BFS

Related parts for ba3853bfs