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CXA1498M View Datasheet(PDF) - Sony Semiconductor

Part Name
Description
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CXA1498M Datasheet PDF : 13 Pages
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CXA1498S/M
Notes on Operation
(1) Operation mode control (each mode of recording and playback equalizers)
1: Playback equalizer switching (120µs/70µs)
(Pins 9, 22 and 23)
DECK A/B
(Pin 23)
DECK A-EQ (Pin 22)
L
H
L 120µs (A-DECK) 70µs (A-DECK)
H
Follows B-EQ control.
DECK B-EQ (Pin 9)
L
H
Follows A-EQ control.
120µs (B-DECK) 70µs (B-DECK)
2: Normal/double speed switching
(Pin 8)
Both playback and recording equalizers are switched in normal/double speed switching.
SPEED Pin 8
Playback EQ
L
Normal speed
H
Double speed
For double speed, both playback and
recording systems are switched to
double speed characteristics of each
Recording EQ
Normal speed
Double speed
setting mode:
(PB-EQ: 120µs, 70µs)
(REC-EQ: NORMAL, CrO2, METAL)
3: Recording equalizer switching (NORMAL, CrO2, METAL)
(Pins 9 and 10)
METAL (Pin 10)
L
H
DECK B-EQ L NORMAL (Type-I) METAL (Type-IV)
(Pin 9)
H CrO2 (Type-II) METAL (Type-IV)
(2) Recording mute (REC MUTE: ON/OFF)
(Pin 21)
The recording mute function of the CXA1498S is controlled by a recording mute circuit to vary the electric
volume for recording equalizer amplifier gain by applying the DC voltage to REC MUTE (Pin 21).
REC MUTE Recording mute ON Attenuation –6dB Recording mute OFF
Control voltage GND VCL 0.5V
2.0V
3.5V VCH VCC
– 10 –
 

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