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Sony Semiconductor Electronic Components Datasheet

CXA1911Q Datasheet

Dolby B/C Type Noise Reduction System with Playback Equalizer

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CXA1911Q
Dolby B/C Type Noise Reduction System with Playback Equalizer
For the availability of this product, please contact the sales office.
Description
The CXA1911Q is an IC designed for use in car
40 pin QFP (Plastic)
stereo cassette decks. Functions include Dolby B/C
type noise reduction, playback equalizer amplifier
and music sensor into a single chip.
Features
Few external parts
Forward/Reverse head switching
Small package (40-pin QFP)
Dolby B/C type noise reduction and playback
equalizer into a single chip
Same pin configuration as Dolby B type noise
reduction system (CXA1910Q)
Music sense level can be set by external
resistors/capacitors (2 modes).
High-band cut filter frequency can be adjusted by
the external capacitance.
Applications
Car stereo cassette decks
Cassette decks (playback only)
Absolute Maximum Ratings (Ta=25°C)
Supply voltage
VCC
12
V
Operating temperature Topr –40 to +85 °C
Storage temperature Tstg –65 to +150 °C
Allowable power dissipation
PD 430 mW
Recommended Operating Conditions
Supply voltage
VCC 7.8 to 11
V
Structure
Bipolar silicon monolithic IC
These ICs are available only to the licensees of Dolby Laboratories Licensing Corporation from whom licensing and applications
information may be obtained.
"Dolby" and the double D symbols are trade marks of Dolby Laboratories Licensing Corporation.
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license
by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples
illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these
circuits.
—1—
E93Y13-TE


Sony Semiconductor Electronic Components Datasheet

CXA1911Q Datasheet

Dolby B/C Type Noise Reduction System with Playback Equalizer

No Preview Available !

Block Diagram
CXA1911Q
PBTC1
PBFB1
PBRIN1
PBFIN1
PBGND
E IREF
PBFIN2
PBRIN2
PBFB2
PBTC2
30 29 28 27 26 25 24 23 22 21
300k
F/R
F/R
300k
NC
NR
IN
TA PE
TAPESW
DRSW
NRMODE
MSSW
DR
AMS
MODE
MSMODE
NR G1 (FF)
10dB LPF
NR
DET
G1/G2
G2 (NOR)
MSTC
MSOUT
1 2 3 4 5 6 7 8 9 10
—2—


Part Number CXA1911Q
Description Dolby B/C Type Noise Reduction System with Playback Equalizer
Maker Sony Corporation
Total Page 18 Pages
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