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CXA1100P, CXA1101P/M, CXA1102P/M, CXA1163P/M
For the availability of this product, please contact the sales office.
Dolby∗B Type Noise Reduction System
Description
CXA1100, CXA1101, CXA1102 and CXA1163 are
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 (
• Dual channel processors in one chip
~
5.5mA, Typ.)
—
16 pin DIP (Plastic) 16 pin SOP (Plastic)
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
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CXA1100/CXA1101/CXA1102/CXA1163
Pin Description (Ta = 25°C, VCC = 12V (Single supply), No signal)
No.
1, 16
2
3, 14
Symbol
REC IN
VCC
PB IN
Z (in)
40kΩ
—
40kΩ
VDC
6.0V
12.0V
6.0V
14
16
3
Equivalent Circuit
Vcc
1
40k
Vcc/2
GND
Description
Recording (Encode)
input
Power supply
Vcc
Playback (Decode) input
40k
Vcc/2
4
5
6, 11
VCC/2
ON/OFF
LINE OUT
1kΩ
—
—
6.0V
—
6.0V
GND
Single supply → VCC/2
Split supply → Ground
Vcc
50µ
150µ
Mode control pin for NR
ON/OFF
5
"H" → NR OFF
"L" → NR ON
GND
Vcc
150
11
6
150
Line (Decode) output
– 2 –
GND
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CXA1100/CXA1101/CXA1102/CXA1163
No.
7, 10
8, 9
Symbol
TC
REC OUT
Z (in)
—
—
VDC
0.3V
6.0V
Equivalent Circuit
7
10
8
9
8.2k
100k
300
300
4µ
8.2k
Description
Vcc
Time constant pin for
the level detector
GND
Vcc
Recording (Encode)
output
GND
12
13
15
REC/PB
IREF
GND
—
—
—
—
1.2V
0V
13
12
50µ 150µ
10µ
Vcc
GND
Vcc
1.2V
GND
Mode control pin for
REC/PB
(Encode/Decode)
"H" → B (Decode)
"L → EC (Encode)
Reference current input
pin for the active filters
Single supply → Ground
Split supply → VEE
– 3 –
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CXA1100/CXA1101/CXA1102/CXA1163
Block Diagram
PB IN
REC IN
REC IN
PB IN
C12
1µ
C11
1µ
C21
1µ
C22
1µ
16
REC/PB
C14
4.7µ
R1
43k
13
1415
ATT2
ATT2
ATT2
1
2
Vcc
3
ATT1
ATT3
ATT3
ATT3
ATT3
ATT1
4
C1
100µ
12
5
ON/OFF
11
SC DET
SC DET
SC DET
6
10
7
C13
0.68µ
C23
0.68µ
C15
9
8
4.7µ
C25
4.7µ
C24
4.7µ
LINE OUT
REC OUT
REC OUT
LINE OUT
ATT: Attenuator
SC : Side Chain
DET: Detector
Test Circuit
Vcc
+15V
Audio
SG
S5-1
P
R
DC Level
C16
4.7µ
1
9
2
S6-2
8
1
2
S6-1
C25
4.7µ
R
P
S5-2
R2
10k
CCIR/ARM
OFF
AC Level
Meter
Distortion
Analyzer
Meter
Filter
ON
S7
OFF
R11
5.1k
R21
5.1k
OFF
R12
5.1k
C11
1µ
R22
5.1k
C21
1µ
16
C12
1µ
R1
43k
13
4
100µ
C1
OFF
R4
2k
12
11
6
5
C24
4.7µ
S2
ON
510
P
R
S1
1415
1
2
3
C22
C2
1µ
100µ
R3
12k
R5
C14
4.7µ
C13
0.68µ
10
7
C23
0.68µ
P
S3
R
A
R
S4
P
– 4 –
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CXA1100/CXA1101/CXA1102/CXA1163
Electrical Characteristics Ta = 25°C, Dolby Level: –10dBm ( = 245mVrms) at REC OUT
VCC = 15V (CXA1100), VCC = 12V (CXA1101), VCC = 9V (CXA1102)
VCC = 6V (CXA1163)
Item Symbol
Test Condition
∗
Min. Typ. Max. Unit
R/P NR f (Hz) Other Conditions
Operating voltage
CXA1100
CXA1101
CXA1102
CXA1163
Supply current
CXA1100
CXA1101
CXA1102
CXA1163
LINE OUT level
CXA1100
CXA1101
CXA1102
CXA1163
REC IN level
PB IN level
Encode characteristics
(Boost)
(1)
(2)
(3)
(4)
(5)
Vopr
ICC
Vlout
Vrin
Vpin
B-R-1
B-R-2
B-R-3
B-R-4
B-R-5
—
—
R
R
R
P
R
R
R
R
R
OFF
OFF
OFF
OFF
ON
ON
ON
ON
ON
—
—
1k
1k
1k
500
2k
5k
10k
10k
Signal Handling
≥ 12dB
No signal
–25dB
–25dB
–25dB
–40dB
0dB
11.5
8.5
6.5
5.0
3.5
3.5
3.5
3.5
–1.0
–4.0
–7.0
–11.0
–32
–32
1.4
5.5
3.9
9.7
–1.1
—
—
—
—
5.6
5.5
5.3
5.1
0.0
–3.0
–6.0
–10.0
–30
–30
2.9
7.0
5.4
10.4
0.4
16.0
16.0
16.0
16.0
7.5
7.5
7.5
7.5
1.0
–2.0
–5.0
–9.0
–28
–28
4.4
8.5
6.9
11.9
1.9
V
V
V
V
mA
mA
mA
mA
dBm
dBm
dBm
dBm
dBm
dBm
dB
dB
dB
dB
dB
Signal handling
CXA1100
CXA1101
CXA1102
CXA1163
Vomax
R
OFF
1k
THD = 1%
13.5
14.0
14.0
13.0
15.3
15.9
15.9
15.0
—
—
—
—
dB
dB
dB
dB
0dBm = 0.775Vrms
– 5 –