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CXA1100P Schematic ( PDF Datasheet ) - Sony Corporation

Teilenummer CXA1100P
Beschreibung DOLBY B TYPE NOISE REDUCTION SYSTEM
Hersteller Sony Corporation
Logo Sony Corporation Logo 




Gesamt 15 Seiten
CXA1100P Datasheet, Funktion
CXA1100P, CXA1101P/M, CXA1102P/M, CXA1163P/M
DolbyB Type Noise Reduction System
For the availability of this product, please contact the sales office.
Description
CXA1100, CXA1101, CXA1102 and CXA1163 are
16 pin DIP (Plastic)
16 pin SOP (Plastic)
ICs including two separate Dolby B type noise
reduction processors. Seven devices with four Dolby
levels and two types of package are provided for
various applications. These devices feature very few
external components, which is achieved by
integrated filter circuits using integrated thin film
capacitors with high capacitance.
Features
Minimum number of external components
NR ON/OFF and REC/PB switchs included
Small package (DIP16, SOP16)
Small supply current (—~5.5mA, Typ.)
Dual channel processors in one chip
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage
VCC 17 V
Operating temperature
Topr –30 to +85 °C
Storage temperature
Tstg –55 to +150 °C
Allowable power dissipation PD
DIP16 (A1100P/A1101P/A1102P/A1163P)900 mW
SOP16 (A1101M/A1102M/A1163M) 500 mW
Note 1) These ICs are available only to the
licensees of Dolby Laboratories Licensing
Corporation from whom licensing and
application information may be obtaind.
Note 2) "Dolby" and 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–
E90302A13-PP






CXA1100P Datasheet, Funktion
CXA1100/CXA1101/CXA1102/CXA1163
Test Condition
Item Symbol
Min. Typ. Max. Unit
R/P NR f (Hz) Other Conditions
Total harmonic
distortion
1) NR OFF
CXA1100
CXA1101
CXA1102
CXA1163
2) NR ON
CXA1100
CXA1101
CXA1102
CXA1163
THD
R
(OFF)
OFF 1k +10dB
THD
(ON)
R
ON 1k +10dB
— 0.03 0.2
— 0.04 0.2
— 0.05 0.2
— 0.06 0.2
— 0.03 0.3
— 0.04 0.3
— 0.06 0.3
— 0.09 0.3
%
%
%
%
%
%
%
%
Input impedance
REC IN
PB IN
Zrec — — 1k
Zpb — — 1k
28 40 57 k
28 40 57 k
Encode S/N ratio
SN
(CCIR)
R
ON
Rg = 5k
(CCIR/ARM)
65
69
— dB
Crosstalk
REC-PB
PB-REC
REC ch to ch
PB ch to ch
CT-1 P OFF 1k 0dB
CT-2 R OFF 1k 0dB
CT-3 R OFF 1k 0dB
CT-4 P OFF 1k 0dB
— –82 –65 dB
— –81 –60 dB
— –70 –60 dB
— –70 –60 dB
REC OUT
Offset voltage
Voff R ON —
(NR ON — OFF)
–40 0
40 mV
Control voltage
"H" Level
"L" Level
VC-H — — —
VC-L — — —
2.5 — VCC V
0 — 0.5 V
0dB means the level which provides the Dolby level at the recording output in the noise reduction off mode.
–6–

6 Page









CXA1100P pdf, datenblatt
CXA1100/CXA1101/CXA1102/CXA1163
4) MPX filter termination and C1 for Vcc/2 (Pin 4)
The MPX (multiplex) filter termination method shown in Fig. a-3 allows saving the coupling capacitors
between the buffer amplifiers and MPX filters. However, the channel to channel separation and REC to PB
crosstalk of low frequency signals will be degraded by the termination resistor RT. For example, 5kof R1
will degrade the channel to channel separation to 50dB. Better separation can be obtained by increasing
the capacitance of C1 (Pin 4) to 220µF or 470µF.
The allowable minimum value of C1 is 47µF, and 100µF is the standard recommended value. Larger values
of C1 are generally desirable in order to improve the crosstalk and ripple rejection ratio.
5) Application for dubbing cassette decks
The CXA1100 series generates non decoded signal at the recoding output in the decode mode, and can
simplify the structure of dubbing decks. See the SONY' Dolby B/C type IC (CX20187/CXA1097Q or
CX20188/CXA1098Q) data sheet in detail.
Line
Input
BFMuilPftfeXerr
MPX
Filter
C11
4.7µ
RT
16 15 14 13
CXA1100 Series
Line
Input
BFMuilPftfeXerr
MPX
Filter
RT
C21
4.7µ
Fig. a-3.
1 234
C1
470µ
Switchable Processor with Single Supply
PB IN
(–30dBm)
REC IN
(–30dBm)
C12
C11
RT
REC REC/PB
PB R2
10k
C3
10µ
C14
4.7µ
LINE OUT
R1 C13 (10%)
(12 0.68µ
%) REC OUT
43k C15
16 15 14 13 12 11 10 9 4.7µ
VCC
REC IN
(–30dBm)
PB IN
(–30dBm)
RT
C21
C22
1 234 56 78
C25
4.7µ
REC OUT
(–10dBm)
C1 C23 (10%)
C2 100µ
0.68µ
100µ
LINE OUT
NR
ON/OFF
C24
4.7µ
OFF ON
Note 1) Resistor and capacitor tolerances are ±10% and ±20% respectively unless otherwise specified.
Note 2) When resistors RT are connected to Pin 4 for the MPX filter termination, increase the capacitances of
C1 and C11 (C21) to 470µF and 4.7µF respectively.
– 12 –

12 Page





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