BD3812F
2ch/6ch电子音量控制器
BD3812F
2ch/6ch电子音量控制器
罗姆的2ch/6ch电子音量控制器是实现了131dB/133dB的宽动态范围的电子音量控制器。以两线串行BUS控制的组合使用时，可实现最大8ch音量。
主要规格
特性：
Input (ch) ?
2
Vcc(Min.)[V]
10
Vcc(Max.)[V]
14.6
Iq[mA]
4
Outputs
2
Tone Control Band
-
Volume (ch/Ad-Sw) ?
2/-
Volume Range/Step (dB/dB) ?
0~-103, -∞/1
Fader (ch/Ad-Sw) ?
2/-
Fader Range/Step (dB/dB) ?
+18~0/2
Output Voltage (V, typ)
4.2
THD+N (dB)
0.005
MUTE Terminal ?
Yes
Output Noise[µVrms]
1.2
I/F
2-wire
Power Supply Voltage (V) ?
±5~±7.3
Temperature (Min.)[°C]
-20
Temperature (Max.)[°C]
75
Package Size [mm]
8.7x6.2 (t=1.71)
特点：
- Residual noise : 1.2μVrms {dynamic range : 131dB (IHF-A)}
- 2ch independent volume (0 to -103dB, MUTE 1dB/step)
- 8ch at maximum available in combination of any of BD3811K1, BD3813KS, BD3814FV, BD3815KS (6ch volume) in common bus line
- It can be controlled until 4 chips with common bus line at the same time
- Maximum output voltage : 4.2Vrms (Vcc=7, VEE=-7V, RL=10kΩ)
- 2-line serial control (for both 3.3V and 5V)
- Built-in Output gain amplifier for adjustment of output signal voltage (0, 6 to 18dB, 2dB/step)
- Output mute controllable by serial data and external control terminal
