The LM1112 is a monolithic integrated circuit specifically designed to realize the Dolby B-type noise reduction system It is a replacement for the LM1111 and the Signetics NE645 648 but with improved performance figures Features Y Very high signal noise ratio 74 dB encode (CCIR ARM) Y Wide supply voltage range 6V to 20V Y Very close matching to standard Dol.
Y Very high signal noise ratio 74 dB encode (CCIR ARM) Y Wide supply voltage range 6V to 20V Y Very close matching to standard Dolby characteristics Y Audible switch-on transients greatly reduced Y Improved temperature performance Y Reduced number of precision external components Y Improved transient stability Y Input protection diodes Available only to licensees of Dolby Laboratories Licensing Corporation San Francisco from whom licensing and application information must be obtained Dolby and the double-D symbol are registered trademarks of Dolby Laboratories Licensing Corporation Schematic.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | LM111 |
National Semiconductor |
Voltage Comparator | |
2 | LM111 |
Fairchild Semiconductor |
Voltage Comparators | |
3 | LM111 |
STMicroelectronics |
Voltage comparator | |
4 | LM111 |
Texas Instruments |
Differential Comparators | |
5 | LM111 |
Linear Technology |
Voltage Comparator | |
6 | LM111-N |
Texas Instruments |
Voltage Comparator | |
7 | LM1112A |
National Semiconductor |
Dolby B-Type Noise Reduction Processor | |
8 | LM1112B |
National Semiconductor |
Dolby B-Type Noise Reduction Processor | |
9 | LM1112C |
National Semiconductor |
Dolby B-Type Noise Reduction Processor | |
10 | LM1114 |
Cystech Electonics |
Low Dropout CMOS Voltage Regulators | |
11 | LM1117 |
National Semiconductor |
800mA Low-Dropout Linear Regulator | |
12 | LM1117 |
AP Semiconductor |
Positive Low Dropout Linear Regulator |