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CXA1797 データシートの表示(PDF) - Sony Semiconductor
部品番号
コンポーネント説明
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CXA1797
Dolby B-C Type Noise Reduction System with Recording Equalizer Amplifier
Sony Semiconductor
CXA1797 Datasheet PDF : 31 Pages
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Pin
Typical pin voltage
Symbol
I/O Z (in)
No.
DC AC
55 PB IN B2
56 PB IN A2
60 PB IN A1
61 PB IN B1
0.0V –21dBv I 50k
Ω
CXA1797Q
Equivalent circuit
V
CC
Description
147
VCT
Head select input
of playback
equalizer amplifier
V
EE
V
CC
57 REC IREF
V
EE
+
———
1.25V
V
EE
58 GND
0V
———
V
EE
+
59 DOLBY IREF
———
1.25V
147
—11—
Reference current
of recording
147
equalizer amplifier
V
CC
Ground (center
capacitance when
using a single
power supply)
V
EE
V
CC
V
EE
+1.25V
Reference current
V
EE
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