BD37534FV
内置3频段均衡器的声音处理器
BD37534FV
内置3频段均衡器的声音处理器
以提升整机设计效率为目的，实现了控制软件通用化和电路板通用化的系列。外接部件少，省空间，可通过3频段均衡器来调节音质。具备汽车音响所需的全部功能，实现了高性能的特性。适用于在标准组件基础上，具备低音炮输出引脚作为扩展引脚的汽车音响组件。
主要规格
特性：
Input (ch) ?
Stereo 3/1/0
ISO Input (ch) ?
Stereo 1/2/3
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
2/3/5
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
Fader Range/Step (dB/dB) ?
+15~-79, -∞/1
Output Voltage (V, typ)
2.2
THD+N (dB)
0.001
EQ (number of Band) ?
3
MUTE Terminal ?
Yes
Mixing Input ?
E 1
Output Noise[µVrms]
3.8
Other ?
Loudness
I/F
I2C
Power Supply Voltage (V) ?
7.0~9.5
Temperature (Min.)[°C]
-40
Temperature (Max.)[°C]
85
Package Size [mm]
10.0x7.6 (t=1.35)
特点：
- Reduce switching noise of input gain control, mute, main volume,
fader volume, bass, middle, treble, loudness, 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, loudness filter,
And, possible to control Q, Gv, fo of 3-band equalizer and fc of LPF,
and fo, Gv of loudness 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-B28. 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.
