CXA1550P
CXA1550P is Dolby B type Noise Reduction System manufactured by Sony Semiconductor Solutions.
Description
The CXA1550/CXA1551/CXA1552/CXA1553 are bipolar ICs providing two separate Dolby B type noise reduction processors. The series is posed of seven devices having four Dolby levels and two types of package for various applications. These devices feature very few external ponents, which is achieved by monolithic filter circuits using integrated thin film capacitors with high capacitance. Features
- Pin replaceable with CXA1100 series
- Minimum number of external ponents
- NR ON/OFF/Double Speed, REC/PB switches included
- Small package (16 pin SOP, 16 pin DIP)
- Low current consumption 5.6m A typ.
- Dual channel processors in one chip
- Double speed encode and decode functions are provided. CXA1551M/CXA1552M CXA1553M 16 pin SOP (Plastic) CXA1550P/CXA1551P CXA1552P/CXA1553P 16 pin DIP (Plastic)
Absolute Maximum Ratings (Ta=25 °C)
- Supply voltage VCC 23
- Operating temperature Topr
- 40 to +85
- Storage temperature Tstg
- 65 to +150
- Allowable power dissipation PD
V °C °C
SOP16 (A1551M/A1552M/A1553M) 500 m W DIP16 (A1550P/A1551P/A1552P/A1553P) 900 m W ∗ 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.
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E92315A79-TE
Block Diagram
PB IN C5 1µ LINE OUT 1 R1 18k C8 2.2µ TC 1 REC OUT 1 9 8 VCC/2 LINE OUT 2 TC 2 NR SW REC OUT 2 C4 1µ PB IN 2 C6 2.2µ C7 2.2µ C9 0.1µ C11 2.2µ PB IN ON/OFF/×2 LINE OUT REC OUT ATT : Attenuator SC : Side Chain DET : Detector C10 0.1µ IREF C12 2.2µ...
