BD37544FS
Sound Processors with built-in 3-band Equalizers
BD37544FS
Sound Processors with built-in 3-band Equalizers
This series supports common control software, increasing design and development efficiency. Tone quality can be adjusted by parametric equalizer using no external components. The built-in three-band equalizer sub woofer output allows for a space saving design.
For Automotive usage, please contact Sales.
Product Detail
Specifications:
Input (ch)
Stereo 3
ISO Input (ch)
Stereo 1
Input Gain (dB/Ad-Sw)
+20~0/Yes
Vcc(Min.)[V]
7
Vcc(Max.)[V]
9.5
Iq[mA]
38
Outputs
6
Tone Control Band
BASS, Middle, Treble
Number of of single input
1/3/4
Volume (ch/Ad-Sw)
2/Yes
Volume Range/Step (dB/dB)
+15~-79, -∞/1
Parametric EQ
Yes
[I] Independent from Input Selector / [C] Cascade from Input Selector
C
Fader (ch/Ad-Sw)
5/Yes
LPF/HPF for SUB WOOFER
LPF+HPF
Fader Range/Step (dB/dB)
+15~-79, -∞/1
OPTION
SUPER BASS
Output Voltage (V, typ)
2.2
THD+N (dB)
0.001
EQ (number of Band)
3
Mixing Input
E 1
Output Noise[µVrms]
3.8
Other
SuperBass
I/F
I2C
Power Supply Voltage (V)
7.0~9.5
Temperature (Min.)[°C]
-40
Temperature (Max.)[°C]
85
Package Size [mm]
13.6x7.8 (t=2.01)
Features:
- Reduce switching noise of input gain control, mute, main volume,
fader volume, bass, middle, treble, super Bass by using advanced switch circuit
[Possible to control all steps] - Built-in ground isolation amplifier inputs, ideal for external stereo input.
- Built-in differential input selector that can make various combination of
single-ended / differential input. - Built-in input gain controller reduce switching noise for volume of
a portable audio input. - Decrease the number of external components by
built-in 3-band equalizer filter, LPF for subwoofer, HPF.
And, possible to control Q, Gv, fo of 3-band equalizer
and fc of LPF and fc of HPF by I²C BUS control freely. - It is possible for the bass, middle, treble to the gain adjustment
quantity of ±20dB and 1 dB step gain adjustment. - It is equipped with output terminals of Subwoofer.
Moreover, the stereo signal of the front and rear also can be
output by the I²C BUS control. - Built-in mixing input and mixing attenuation.
- Bi-CMOS process is suitable for the design of low current and low energy.
And it provides more quality for small-scale regulator and heat in a set. - Package is SSOP-A32. Putting input-terminals together
and output-terminals together can make PCB layout easier
and can makes area of PCB smaller. - It is possible to control by 3.3V / 5V for I²C BUS.
