JPS54104718A - Pick up system for intermediate frequency signal - Google Patents
Pick up system for intermediate frequency signalInfo
- Publication number
- JPS54104718A JPS54104718A JP1161278A JP1161278A JPS54104718A JP S54104718 A JPS54104718 A JP S54104718A JP 1161278 A JP1161278 A JP 1161278A JP 1161278 A JP1161278 A JP 1161278A JP S54104718 A JPS54104718 A JP S54104718A
- Authority
- JP
- Japan
- Prior art keywords
- transistors
- pick
- collector
- differential pair
- halfway
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Noise Elimination (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
PURPOSE: To enable to pick up the signal without deteriorating the AM rejection ratio from the halfway of IF stage, by stabilizing the collector potential of the transistors in DC manner constituting one side of the differential pair transistors at each IF amplifier stage by two transistors.
CONSTITUTION: The transistors Tr22 and 24 are respectively connected in cascade to one Tr2 and 9 of the differential pair Tr at each IF amplifier stage. The collector of Tr22 and 24 is connected to the power supply via the respective load resistors 21, 23, and the output is fed to the addition circuit 20 via the rectifying circuits 18 and 19 from the collector of Tr22 and 24, outputting is made from the terminal G. The Tr22 and 24 mentioned above are connected to the power supply terminal D regulated for each base and the collector potential of Tr2 and 9 constituting one side of the differential pair Tr is stable in DC manner, allowing to pick up the signal without deteriorating the AM rejection ratio from the halfway of the IF stages.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1161278A JPS54104718A (en) | 1978-02-04 | 1978-02-04 | Pick up system for intermediate frequency signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1161278A JPS54104718A (en) | 1978-02-04 | 1978-02-04 | Pick up system for intermediate frequency signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54104718A true JPS54104718A (en) | 1979-08-17 |
JPS6143900B2 JPS6143900B2 (en) | 1986-09-30 |
Family
ID=11782725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1161278A Granted JPS54104718A (en) | 1978-02-04 | 1978-02-04 | Pick up system for intermediate frequency signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54104718A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943635A (en) * | 1982-09-04 | 1984-03-10 | Toko Inc | Detecting circuit of signal intensity |
-
1978
- 1978-02-04 JP JP1161278A patent/JPS54104718A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5943635A (en) * | 1982-09-04 | 1984-03-10 | Toko Inc | Detecting circuit of signal intensity |
JPS6351611B2 (en) * | 1982-09-04 | 1988-10-14 | Eastern Steel |
Also Published As
Publication number | Publication date |
---|---|
JPS6143900B2 (en) | 1986-09-30 |
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