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Contents

Pinout
Key specifications
CAD (KiCad official)
Provenance

README

markdown

TMS3705FDRQ1

Texas Instruments · RFID ICs · SOIC-16

TMS3705FDRQ1 from Texas Instruments, in a SOIC-16. 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	SENSE	input	Input of the RF amplifier; the analog voltage must stay within -0.3 V to VDD + 0.3 V and the input current within ±5 mA.
2	SFB	output	Output of the RF amplifier; input current in case of overvoltage is limited to ±5 mA.
3	D_TST	output	Test output for digital signals; voltage must stay within -0.3 V to VDD + 0.3 V, overload clamping current within ±5 mA, and output current within -1 mA (IOH) to 1 mA (IOL).
4	A_TST	output	Test output for analog signals; voltage must stay within -0.3 V to VDD + 0.3 V and input current within ±5 mA.
5	ANT1	output	Antenna output 1 (driver output); output voltage must stay within -0.3 V to VDD + 0.3 V and output peak current is limited to ±1.1 A.
6	VSSA	power_in	Ground for the full bridge drivers; supply pins VDD, VSS/VSSB, VDDA and VSSA have a recommended range of 4.5 to 5.5 V (5 V nominal) and an absolute maximum of 7 V.
7	ANT2	output	Antenna output 2 (driver output); output voltage must stay within -0.3 V to VDD + 0.3 V and output peak current is limited to ±1.1 A.
8	VDDA	power_in	Voltage supply for the full bridge drivers; recommended 4.5 to 5.5 V (5 V nominal), absolute maximum 7 V.
9	VDD	power_in	Voltage supply for nonpower blocks; recommended 4.5 to 5.5 V (5 V nominal), absolute maximum 7 V.
10	OSC2	output	Oscillator output; voltage must stay within -0.3 V to VDD + 0.3 V.
11	OSC1	input	Oscillator input; voltage must stay within -0.3 V to VDD + 0.3 V, with VIH of 0.7 VDD and VIL of 0.3 VDD, and oscillator frequency of 4 MHz.
12	VSS/VSSB	power_in	Ground for nonpower blocks and PLL.
13	NC	unconnected	Not connected.
14	SCIO	output	Data output to the microcontroller; voltage must stay within -0.3 V to VDD + 0.3 V, with output current of -1 mA (IOH) and 1 mA (IOL) and overload clamping current within ±5 mA.
15	F_SEL	input	Control input for frequency selection (default high); VIH is 0.7 VDD and VIL is 0.2 VDD, with input voltage limited to -0.3 V to VDD + 0.3 V.
16	TXCT	input	Control input from the microcontroller (default high); VIH is 0.7 VDD and VIL is 0.3 VDD, with input voltage limited to -0.3 V to VDD + 0.3 V.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-16
Category	RF And Wireless
Pins	16

CAD (KiCad official)

Symbol: TMS3705FDRQ1
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)
3D model files: tms3705fdrq1-etched.step / tms3705fdrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tms3705fdrq1.step / tms3705fdrq1.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (26 pp, sha256 d1037db995b710cf, retrieved 2026-10-10, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-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