參數(shù)資料
型號: TDA7409D
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20
封裝: SOP-20
文件頁數(shù): 19/25頁
文件大?。?/td> 299K
代理商: TDA7409D
3/25
TDA7409
FEATURES:
Input Multiplexer
4 single-end stereo inputs
In-Gain 0..14dB, 1dB steps, 14..20dB, 2dB steps
Auto Zero
Beep
internal Beep with 3 frequencies
781Hz/1.56KHz/1.8KHz
Mixing stage
4 step-mixing-stage with mono or beep as mix-signals
Loudness
second order frequenciy response
programmable center frequency
15 x 1dB steps
selectable low & high frequency boost
selectable flat-mode (constant sttenuation)
Volume
1 dB attenuator
100dB range
soft-step control with programmable times
Bass
2nd order frequency response
center frequency programmable in 4 steps
60Hz/80Hz/100Hz/200Hz
Q programmable 1.0/1.25/1.5/2.0
DC gain programmable
+15dB x 1dB steps
Treble
2nd order frequency response
center frequency programmable in 4 steps
10KHz/12.5KHz/15KHz/17.5KHz
+15dB x 1dB steps
Speaker
4 independent speaker controls in 1dB steps
control range 50dB with mute
Zero crossing attenuate
Subwoofer
Stereo output
attenuator range 50dB
Mute Functions
direct mute
digitally controlled Soft Mute with 4 programmable mute-times
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