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PDF CXA1101P Data sheet ( Hoja de datos )
| Número de pieza | CXA1101P | |
| Descripción | DOLBY B TYPE NOISE REDUCTION SYSTEM | |
| Fabricantes | Sony Corporation | |
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CXA1100P, CXA1101P/M, CXA1102P/M, CXA1163P/M
Dolby∗ B 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
1 page  
CXA1100/CXA1101/CXA1102/CXA1163
Electrical Characteristics
Item Symbol
R/P
Operating voltage
CXA1100
CXA1101
CXA1102
CXA1163
Vopr
—
Supply current
CXA1100
CXA1101
CXA1102
CXA1163
ICC R
LINE OUT level
CXA1100
CXA1101
CXA1102
CXA1163
Vlout R
REC IN level
Vrin R
PB IN level
Vpin
P
Encode characteristics
(Boost)
(1) B-R-1
(2) B-R-2
(3) B-R-3
(4) B-R-4
(5) B-R-5
R
R
R
R
R
Signal handling
CXA1100
CXA1101
CXA1102
CXA1163
Vomax R
Ta = 25°C, Dolby Level: –10dBm ( = 245mVrms) at REC OUT
VCC = 15V (CXA1100), VCC = 12V (CXA1101), VCC = 9V (CXA1102)
VCC = 6V (CXA1163)
Test Condition∗
Min. Typ. Max. Unit
NR f (Hz) Other Conditions
— — Signal Handling
≥ 12dB
11.5 — 16.0 V
8.5 — 16.0 V
6.5 — 16.0 V
5.0 — 16.0 V
OFF — No signal
3.5 5.6 7.5 mA
3.5 5.5 7.5 mA
3.5 5.3 7.5 mA
3.5 5.1 7.5 mA
OFF 1k
–1.0 0.0 1.0 dBm
–4.0 –3.0 –2.0 dBm
–7.0 –6.0 –5.0 dBm
–11.0 –10.0 –9.0 dBm
OFF 1k
–32 –30 –28 dBm
OFF 1k
–32 –30 –28 dBm
ON 500 –25dB
ON 2k –25dB
ON 5k –25dB
ON 10k –40dB
ON 10k 0dB
OFF 1k THD = 1%
1.4 2.9
5.5 7.0
3.9 5.4
9.7 10.4
–1.1 0.4
4.4
8.5
6.9
11.9
1.9
dB
dB
dB
dB
dB
13.5 15.3
14.0 15.9
14.0 15.9
13.0 15.0
—
—
—
—
dB
dB
dB
dB
0dBm = 0.775Vrms
–5–
5 Page 
CXA1100/CXA1101/CXA1102/CXA1163
When the ripple or noise component of VEE supply is not negligible small, the CR filter shown in Fig. a-1 will
be usefull.
The operation voltage range are
CXA1100 11.5 to 16V (±5.75 to ±8V)
CXA1101 8.5 to 16V (±4.25 to ±8V)
CXA1102 6.5 to 16V (±3.25 to ±8V)
47
VEE
R1
43k
13
CXA1100
14 Series
15
CXA1163 5.0 to 16V (±2.5 to ±8V)
100 to 470µF
Fig. a-1.
The devices will satisfy the signal handling of 12dB specified by Dolby Laboratories on above voltage range.
2) Operation mode control
The CXA1100 series provide fully electronic switching circuits. The functions are controlled by DC voltages
of the two control pins of REC/PB (pin 12) and ON/OFF (pin 5). The switching truth tables are shown in Fig. a-2.
VH and VL are defined as
(a) Single ended supply operation
VCC ≥ VH ≥ 2.5V
0.5V ≥ VL ≥ 0V
(b) Split supply operation
VCC ≥ VH ≥ VEE + 2.5V
VEE + 0.5V ≥ VL ≥ VEE
REC/PB
Function
VH VL
PB (Decode) REC (Encode)
ON/OFF
Function
VH
NR off
Fig. a-2.
VL
NR on
It is desirable to provide CR time constant circuits at the mode control pins with time constant from
100msec to 1sec, which will reduce switching clicks effectively.
3) Reference levels
Characteristics and specifications of the Dolby noise reduction processor are defined as the levels and
measured with reference to the Dolby level. This particular level in these devices is –10dBm (245mVrms),
and is measured at the recording output (REC OUT) in the NR off mode.
The reference levels of the recording input (REC IN), play back input (PB IN) and line output (LINE OUT)
are defined the levels which provide the Dolby level at the recording output in the NR off mode.
The CXA1100 series has a common silicon die, and has different internal connection. The series provides
four different line output levels for various applications. Other reference levels, recording input level,
playback input level and recording output level (= Dolby level) are identical in all devices.
The reference levels are as follows
Recording output level (= Dolby level)
Recording input level
Play back input level
Line output level
CXA1100
CXA1101
CXA1102
CXA1163
–10dBm (245mVrms)
–30dBm (24.5mVrms)
–30dBm (24.5mVrms)
0dBm (775mVrms)
–3dBm (548mVrms)
–6dBm (388mVrms)
–10dBm (245mVrms)
– 11 –
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet CXA1101P.PDF ] | |
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