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TDA7786C

Public Made by Adom

by adom

STMicroelectronics RF Transceiver ICs, LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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TDA7786C

STMicroelectronics · RF Transceiver ICs · LQFP-64(10x10)

TDA7786C from STMicroelectronics, in a LQFP-64(10x10). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 FMPINDRV output FM PIN diode driver output.
2 FMPINDdec input Integrated FM PIN diode decoupling.
3 FMMIXdec passive FM RF signal ground.
4 FMMIXin2 input FM mixer input 2.
5 FMMIXin1 input FM mixer input 1.
6 GNDRF power_in RF power ground.
7 TCAM passive AM AGC time constant.
8 VCCRF power_in RF 5 V supply.
9 CK_SEL input Master/Slave clock operation select.
10 GNDVCO power_in VCO ground.
11 LFref passive Loop filter reference.
12 LF1 passive Loop filter output.
13 VCCVCO power_in VCO 5 V supply.
14 TCAM2 passive AM AGC 2nd order time constant.
15 PINDdec passive AM AGC internal PIN diode decoupling.
16 PINDin passive AM AGC internal PIN diode input.
17 GNDLNA power_in AM LNA ground.
18 LNAin input AM LNA input.
19 LNAdec passive AM LNA decoupling.
20 LNAout output AM LNA output.
21 LNAin2 passive AM LNA input 2nd stage.
22 LNAout2 passive AM LNA output 2nd stage.
23 LNAdec2 passive AM LNA decoupling 2nd stage.
24 AMMIXin1 input AM mixer input 1.
25 AMMIXin2 input AM mixer input 2.
26 GNDSLINK power_in Internal inter-IC communication bus ground.
27 Vdig power_in Front-end digital 5 V supply.
28 VCCreg1V2 power_in Internal 1.2 V regulator 5 V supply.
29 REG1V2 power_out Internal 1.2 V regulator output.
30 Vreg3v3 power_out Internal 3.3 V regulator output.
31 RSTN input Reset (low active), pull-up 50 kΩ to 3.3 V IO supply.
32 ADDSEL input I2C address select, pull-down 50 kΩ to ground.
33 SDA bidirectional I2C bus data, pull-up 50 kΩ to 3.3 V IO supply.
34 SCL input I2C bus clock, pull-up 50 kΩ to 3.3 V IO supply.
35 VDD3V3 power_in IO ring (3.3 V) supply.
36 GND3V3 power_in IO ring (3.3 V) ground, listed in the table as IO ring (3.3 V) supply.
37 NC unconnected Not connected.
38 NC unconnected Not connected.
39 NC unconnected Not connected.
40 NC unconnected Not connected.
41 NC unconnected Not connected.
42 NC unconnected Not connected.
43 NC unconnected Not connected.
44 NC unconnected Not connected.
45 NC unconnected Not connected.
46 GND1V2 power_in DSP core ground.
47 VDD core 1V2 power_in DSP core 1.2 V supply.
48 Test input Test mode, pull-down 50 kΩ to ground.
49 VDDPLL1V2 power_in Digital PLL 1.2 V supply.
50 VDDIO1V2 power_in Internal inter-IC communication 1.2 V supply.
51 VCC-REF power_in Front-end reference frequency and regulator 5 V supply.
52 OSCin input Crystal oscillator input.
53 OSCout output Crystal oscillator output.
54 GND-REF power_in Front-end reference frequency and regulator ground.
55 Vrefdec passive 3.3 V bias generation decoupling.
56 GND-ADC_DAC power_in IFADC and audio DAC ground.
57 DACoutL output Audio output left.
58 DACoutR output Audio output right.
59 VCC-ADC_DAC power_in IFADC and audio DAC 5 V supply.
60 VCC-PLL power_in Tuning PLL 5 V supply.
61 GND-PLL power_in Tuning PLL ground.
62 PLLtest output PLL test output.
63 TCFM passive FM AGC time constant.
64 TVDAC output Tuning voltage output.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-64(10x10)
Category RF And Wireless
Pins 64

CAD (KiCad official)

  • Symbol: TDA7786C
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: tda7786c-etched.step / tda7786c-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tda7786c.step / tda7786c.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: STMicroelectronics datasheet (44 pp, sha256 e7207ef3adaa2829, retrieved 2026-10-08, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (vision), consensus claude-opus-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF