5.1ch Sound Processor
Description
Sound Processors for Home Theater Systems
5.
1ch Sound Processor
BD3811K1,BD3818KS
No.
10081EAT02
●Description BD3811K1 and BD3818KS are 5.
1ch sound processors, with built-in Mode Selector/Input Selector.
Functions, including 6-ch Volume, Gain Amp, Bass, Treble, Mixing (BD3818KS), Dynamic Bass Boost (BD3818KS) and Bass Boost (BD3811K1) are integrated into a single chip.
●Features
1) Independent 6 channels for Master Volume (0 to -103dB, 1dB/Step, MUTE, BD3811K1) (0 to -95dB 1dB/Step, MUTE, BD3818KS)
Implementation of a resistance ladder type circuit reduces residual noise and a shock sound at switching.
2) Low current consumption design achieved by adopting the BiCMOS process 3) Maximum output voltage (BD3818KS): 4.
3Vrms (Vcc=7V, VEE=-7V, RL=10kΩ)
Maximum output voltage (BD3811K1): 4.
2Vrms (Vcc=7V, VEE=-7V, RL=10kΩ) 4) Built-in Input Gain Amp useful for adjusting the output signal voltages 5) Built-in Operational Amplifier useful for filter construction (BD3818KS) 6) Built-in Dynamic Bass Boost circuit (BD3818KS) 7) 2-wire serial control (BD3818KS for 5V, BD3811K1 for both 3.
3V and 5V) 8) Built-in Output Gain Amp useful for adjusting the output signal voltages (BD3811K1) 9) REC output terminal with a REC input/output switch useful for monitoring Equalizer Amp (BD3811K1) 10) Output mute controlled by either serial data or an external control terminal
●Applications AV receivers, home theater systems and mini-audio systems.
●Line up matrix Parameter
Input Selector Input Gain Volume Bass, Treble Output Gain Mixing Bass Boost Package
BD3811K1 8 inputs 2Step 0 to -103dB 1dB/Step 14dB 2dB/Step 0, 6 to 18dB 2dB/Step No 0 to 12dB, 4dB/Step QFP80
BD3818KS
5 inputs
4 Step or 2 Step
0 to -95dB 1dB/Step 14dB 2dB/Step
Variable depending on the external resistance
Yes 0 to 12dB, 4dB/Step Dynamic type SQFP80
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1/17
2010.
06 - Rev.
A
BD3811K1,BD3818KS
Technical Note
●Absolute maximum ratings (Ta=25℃)
Parameter
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