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PDF CXA1552P Data sheet ( Hoja de datos )
| Número de pieza | CXA1552P | |
| Descripción | Dolby B type Noise Reduction System | |
| Fabricantes | Sony Corporation | |
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CXA1550P, CXA1551M/P
CXA1552M/P, CXA1553M/P
Dolby B∗ type Noise Reduction System
Description
The CXA1550/CXA1551/CXA1552/CXA1553 are
bipolar ICs providing two separate Dolby B type
noise reduction processors. The series is
composed of seven devices having four Dolby levels
and two types of package for various applications.
These devices feature very few external
components, which is achieved by monolithic filter
circuits using integrated thin film capacitors with high
capacitance.
CXA1551M/CXA1552M
CXA1553M
16 pin SOP (Plastic)
CXA1550P/CXA1551P
CXA1552P/CXA1553P
16 pin DIP (Plastic)
Features
• Pin replaceable with CXA1100 series
• Minimum number of external components
• NR ON/OFF/Double Speed, REC/PB switches
included
• Small package (16 pin SOP, 16 pin DIP)
• Low current consumption 5.6mA typ.
• Dual channel processors in one chip
• Double speed encode and decode functions are
provided.
Absolute Maximum Ratings (Ta=25 °C)
• Supply voltage
VCC 23 V
• Operating temperature Topr –40 to +85 °C
• Storage temperature Tstg –65 to +150 °C
• Allowable power dissipation
PD
SOP16 (A1551M/A1552M/A1553M)
500 mW
DIP16 (A1550P/A1551P/A1552P/A1553P) 900 mW
∗ 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—
E92315A79-TE
1 page  
CXA1550P, CXA1551M/P, CXA1552M/P, CXA1553M/P
Electrical Characteristics
Ta=25 °C, Dolby Level: –10 dBm (=245 mVrms) at RECOUT, 0 dBm=775 mVrms, VCC=15 V (CXA1550),
VCC=12 V (CXA1551), VCC=9 V (CXA1552), VCC=6 V (CXA1553) unless otherwise specified
Characteristics
Symbol
R/P
Test Conditions
NR f (Hz)
other
Min. Typ. Max. Unit
Operating
voltage
CXA1550
CXA1551
CXA1552
CXA1553
Vopr
Signal
— — — handling
≥12 dB
11.5 — 16.0 V
8.5 — 16.0 V
6.5 — 16.0 V
5.0 — 16.0 V
CXA1550
3.5 5.6 7.7 mA
Current
consumption
CXA1551
CXA1552
ICC
REC OFF
— No signal
3.5 5.5 7.7 mA
3.5 5.3 7.7 mA
CXA1553
3.5 5.1 7.7 mA
CXA1550
–1.0 0.0 1.0 dBm
LINE OUT
level
CXA1551
CXA1552
Vlout
REC OFF
1k
–4.0 –3.0 –2.0 dBm
–7.0 –6.0 –5.0 dBm
CXA1553
–11.0 –10.0 –9.0 dBm
REC IN Level
Vrin
REC OFF
1k
–32 –30 –28 dBm
PB IN Level
Vpin
REC OFF
1k
–32 –30 –28 dBm
(1)
B-R-1
REC
ON
500 –25 dB
1.4 2.9 4.4 dB
Encode
(2)
B-R-2
REC
ON
2 k –25 dB
5.5 7.0 8.5 dB
characteristics
(3)
B-R-3
REC
ON
5 k –25 dB
3.9 5.4 6.9 dB
(Boost)
(4)
B-R-4
REC ON 10 k –40 dB
9.7 10.4 11.9 dB
(5)
B-R-5
REC ON 10 k 0 dB
–1.1 0.4 1.9 dB
CXA1550
13.5 15.3 —
dB
Signal
handling
CXA1551
CXA1552
Vomax
REC OFF
1 k THD=1 %
14.0 15.9
14.0 15.9
—
—
dB
dB
CXA1553
13.0 15.0 —
dB
CXA1550
— 0.03 0.2
%
Total
harmonic
distortion
CXA1551
CXA1552
CXA1553
CXA1550
CXA1551
CXA1552
THD
(OFF)
THD
(ON)
OFF
ON
— 0.04 0.2
— 0.05 0.2
— 0.06 0.2
— 0.03 0.3
— 0.04 0.3
— 0.06 0.3
%
%
%
%
%
%
CXA1553
— 0.09 0.3
%
Encode S/N ratio
SN
(CCIR)
Rg=5 kΩ
R ON —
65 69 — dB
(CCIR/ARM)
REC-PB
CT-1
— –82 –65 dB
Crosstalk
PB-REC
REC ch to ch
CT-2
CT-3
— –81 –60 dB
— –70 –60 dB
PB ch to ch
CT-4
— –70 –60 dB
REC OUT offset voltage
(NR ON-OFF)
Voff
–40 —
40 mV
REC
VC-R
0 — 0.5 V
Control
voltage
PB
ON
OFF
×2
VC-P
VC-ON
VC-OFF
VC-×2
2.5 — VCC V
0 — 0.5 V
2.5 — VCC–2.5 V
VCC–05 —
VCC
V
∗ 0 dB means the level which provides the Dolby level at the recording output in the noise reduction off mode.
—5—
5 Page 
CXA1550P, CXA1551M/P, CXA1552M/P, CXA1553M/P
Example of Representative Characteristics
Quiescent current consumption vs. Supply voltage
Encode Mode
6 NR OFF
NR ON
NR × 2
5
Current consumption vs. Input level (CXA1552)
7 Encode Mode
VCC=9V
0dB=Dolby level
NR ON 10kHz
6
NR OFF
NR × 2 10kHz
NR ON 1kHz
NR × 2 1kHz
5
4
5 10 15 20
VCC – Supply Voltage (V)
NR ON encode characteristics
12 VCC=9V
0dB=Dolby level
10
8
–50dB
–40dB
–30dB
6
4 –20dB
2 –10dB
0
0dB
200 500 1k 2k 5k 10k 20k
Frequency (Hz)
Signal handling
Encode Mode A1553 A1552
20
NR OFF
f=1kHz
THD=1%
18
16
A1551
A1550
14
12
10
0
4 6 8 10 12 14 16 18 20 22
VCC – Supply voltage (V)
–12 –8 –4 0 4 8
Input level (dB)
12
Double speed encode boost
12 VCC=9V
0dB=Dolby level
10
8
–50dB
–40dB
–30dB
6
4 –20dB
2 –10dB
0 0dB
500 1k 2k
5k 10k 20k
Frequency (Hz)
Load characteristics (CXA1552)
50k
LINE OUT
10
8
REC OUT
6
4
2
0 Encode Mode
VCC=9V
THD=1%
–2 0dB=0.775Vrms
200 500 1k 2k 5k 10k 20k
RL – Load resistance (Ω)
—11—
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet CXA1552P.PDF ] | |
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