| Manufacturer | Part # | Datasheet | Description |

Zilog, Inc.
|
Z90T365 |
230Kb/6P |
Automatic frequency tuning |

Silicon Laboratories
|
SI4021 |
1Mb/35P |
Automatic antenna tuning circuit |

Gennum Corporation
|
GS9010A |
169Kb/6P |
Serial Digital Automatic Tuning Subsystem |

List of Unclassifed Man...
|
CA3064 |
516Kb/8P |
TV Automatic Fine Tuning Circuit |

NTE Electronics
|
NTE783 |
21Kb/2P |
Integrated Circuit Automatic Fine-Tuning Detector |

STMicroelectronics
|
ST25R3911B |
2Mb/129P |
Automatic antenna tuning system providing tuning of antenna LC tank December 2016 Rev 2 |

Microsemi Corporation
|
GC15001 |
390Kb/4P |
TUNING DIODES Frequency Linear Tuning Varactors TM |

TEMIC Semiconductors
|
U4256BM |
322Kb/14P |
Frequency Synthesizer for Radio Tuning |

NXP Semiconductors
|
TSA6057 |
650Kb/14P |
Radio tuning PLL frequency synthesizers 1997 Oct 29 |

ATMEL Corporation
|
ATR4256 |
522Kb/21P |
Frequency Synthesizer for Radio Tuning |

NTE Electronics
|
NTE1174 |
75Kb/3P |
Integrated Circuit TV Automatic Fine Tuning (AFT) Circuit |

NXP Semiconductors
|
SAA1057 |
104Kb/13P |
Radio tuning PLL frequency synthesizer November 1983 |

ATMEL Corporation
|
U4256BM-R |
403Kb/19P |
Frequency Synthesizer for Radio Tuning |
| U4256BM |
167Kb/14P |
Frequency Synthesizer for Radio Tuning |

Sanyo Semicon Device
|
LC72121 |
425Kb/23P |
PLL Frequency Synthesizers for Electronic Tuning |
| LC72146 |
357Kb/21P |
PLL Frequency Synthesizer for Electronic Tuning |

Siemens Semiconductor G...
|
BBY34C |
21Kb/2P |
Silicon Tuning Varactors (Hyperabrupt junction tuning diode Frequency linear tuning range 4 ??12 V) |
| BBY35F |
17Kb/2P |
Silicon Tuning Varactor (Hyperabrupt junction tuning diode Frequency linear tuning range 4 ??12 V) |

NXP Semiconductors
|
TSA6060 |
236Kb/16P |
Fast radio tuning PLL frequency synthesizer 1995 Nov 23 |

Molex Electronics Ltd.
|
AB26TRQ |
1Mb/4P |
Low Frequency Reflowable Tuning Fork Crystal |