Vct49x3f Py F1000 Datasheet -

A: Possibly. Many Japanese ICs use a 4-digit date code (YYWW). F1000 could decode as: F = 1999 or 2006? 10 = week 10, 00 = year 2000. Always verify with the datasheet’s “Marking Information” section.

If you have the physical component and cannot find a datasheet: vct49x3f py f1000 datasheet

| Register | Name | Bits | Description | |----------|---------------|------|--------------------------------------| | 0x00 | CHAN_FREQ_1 | 7:0 | Frequency word MSB (PLL) | | 0x01 | CHAN_FREQ_2 | 7:0 | Frequency word LSB | | 0x02 | AGC_CTRL | 1:0 | 00 = auto, 01 = manual, 10 = force max gain | | 0x05 | BAND_SELECT | 2:0 | 000 = VHF-L, 001 = VHF-H, 010 = UHF | | 0x07 | STANDARD | 3:0 | 0001 = DVB-T, 0010 = ISDB-T, 0011 = ATSC | | 0x0F | STATUS | 0 | PLL lock flag | A: Possibly

[Antenna] → [Balun] → RF_IN (VCT49X3F) → IF_OUT_P/N → [External SAW Filter] → [Demodulator (e.g., Si2168)]
                                    ↑                           |
                                    |                           ↓
                               I²C Bus ←─── Host Controller (Tuning commands)

The prefix vct strongly suggests:

Search for: "VCT49" datasheet or "VCXO 4.9x3.8 1000 MHz" The prefix vct strongly suggests: