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TA2123AF Fiches technique(PDF) 8 Page - Toshiba Semiconductor

No de pièce TA2123AF
Description  1.5V Stereo Headphone Amplifier
PDF  20 Pages
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Fabricant  TOSHIBA [Toshiba Semiconductor]
Site Internet  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TA2123AF Fiches technique(HTML) 8 Page - Toshiba Semiconductor

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TA2123AF
2002-10-30
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The AMS SW is also turned of when the MT SW is turned off. And the comparator input level is
determined by external resistors (R4, R6) and capacitors (C3, C4) from mixer amplifier output
level.
The transfer function is as follows.
VO / Vi = R3 / [R1･R2 / (R1 + R2)] × {jωC4･R6 / [1 + jω (C3･R4 + C4･R4 + C4･R6) - ω2C3･C4･
R4･R6]}
Fig.2
AMS system
VREF OUT
VREF OUT
MIX
+
−
COMP
C1 R1
C2 R2
PRE OUT
AMS
IN
AMS
MIX
R3
R4
C4
AMS
SW
AMS
DET
VREF OUT
AMS
OUT
R7
VCC
Synchronizes with the MT SW
12
14
13
15
40



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