BD37522FS
内置2频段均衡器的声音处理器
BD37522FS
内置2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。内置调节低音和高音音质的2频段均衡器。其滤波器无需外接部件。此外，通过3路输入选择器和音量、4ch独立控制的音量控制器，支持3个音乐来源输入和前、后的Lch/Rch的4通道输出。实现了高性能且外接部件少的省空间设计，适用于标准型整机。
主要规格
特性：
Input (ch) ?
Stereo 4
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
4
Tone Control Band
BASS, Treble
Number of of single input
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) ?
4/Yes
Fader Range/Step (dB/dB) ?
0~-79, -∞/1
Output Voltage (V, typ)
2.2
THD+N (dB)
0.001
EQ (number of Band) ?
2
MUTE Terminal ?
Yes
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]
10.0x7.8 (t=2.1)
特点：
- Reduce switching noise of input gain control, mute, main volume,
fader volume, bass, 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 input gain controller reduce switching noise for volume of
a portable audio input. - Decrease the number of external components by
built-in 2-band equalizer filter and loudness filter.
And, possible to control Q, Gv, fo of 2-band equalizer
and fo, Gv of loudness by I²C BUS control freely. - It is possible for the bass, treble to the gain adjustment
quantity of ±20dB and 1 dB step gain adjustment. - 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-A24. 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.
