LMX2595RHAR from TI, in a VQFN-40(6x6). 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	CE	input	Chip enable input; active HIGH powers on the device.
2	GND	power_in	VCO ground.
3	VbiasVCO	passive	Bypass VCO bias; requires a 10-µF capacitor connected to VCO ground, placed close to the pin.
4	GND	power_in	VCO ground.
5	SYNC	input	Phase synchronization pin with a programmable threshold.
6	GND	power_in	Digital ground.
7	VccDIG	power_in	Digital supply; TI recommends bypassing with a decoupling capacitor to digital ground.
8	OSCinP	input	Reference input clock (+); high-impedance self-biasing pin that requires an AC-coupling capacitor (0.1 µF recommended).
9	OSCinM	input	Reference input clock (-); high-impedance self-biasing pin that requires an AC-coupling capacitor (0.1 µF recommended).
10	VregIN	passive	Input reference path regulator output; requires a 1-µF capacitor connected to ground, placed close to the pin.
11	VccCP	power_in	Charge pump supply; TI recommends bypassing with a decoupling capacitor to charge pump ground.
12	CPout	output	Charge pump output; TI recommends connecting C1 of the loop filter close to the pin.
13	GND	power_in	Charge pump ground.
14	GND	power_in	Digital ground.
15	VccMASH	power_in	Digital supply; TI recommends bypassing with a decoupling capacitor to digital ground.
16	SCK	input	SPI clock; high-impedance CMOS input with 1.8-V to 3.3-V logic.
17	SDI	input	SPI data; high-impedance CMOS input with 1.8-V to 3.3-V logic.
18	RFoutBM	output	Differential output B (-); requires a typically 50-Ω pullup to Vcc placed as close to the pin as possible, and can be used as an output or SYSREF output.
19	RFoutBP	output	Differential output B (+); requires a typically 50-Ω pullup to Vcc placed as close to the pin as possible, and can be used as an output or SYSREF output.
20	MUXout	output	Multiplexed output for lock detect, readback, diagnostics, and ramp status.
21	VccBUF	power_in	Output buffer supply; TI recommends bypassing with a decoupling capacitor to RFout ground.
22	RFoutAM	output	Differential output A (-); requires a 50-Ω pullup to Vcc placed as close to the pin as possible.
23	RFoutAP	output	Differential output A (+); requires a 50-Ω pullup to Vcc placed as close to the pin as possible.
24	CSB	input	SPI latch (chip select bar); high-impedance CMOS input with 1.8-V to 3.3-V logic.
25	GND	power_in	VCO ground.
26	VccVCO2	power_in	VCO supply; TI recommends bypassing with a decoupling capacitor to VCO ground.
27	VbiasVCO2	passive	Bypass VCO bias; requires a 1-µF capacitor connected to VCO ground.
28	SysRefReq	input	SYSREF request input for JESD204B support.
29	VrefVCO2	passive	Bypass VCO supply reference; requires a 10-µF capacitor connected to VCO ground.
30	RampClk	input	Ramping-mode input that clocks the ramp in manual ramping mode or acts as a trigger input.
31	GND	power_in	VCO ground.
32	RampDir	input	Ramping-mode input that changes ramp direction in manual ramping mode or acts as a trigger input.
33	VbiasVARAC	passive	VCO varactor bias; requires a 10-µF capacitor connected to VCO ground.
34	GND	power_in	VCO ground.
35	Vtune	input	VCO tuning voltage input.
36	VrefVCO	passive	Bypass VCO supply reference; requires a 10-µF capacitor connected to VCO ground.
37	VccVCO	power_in	VCO supply; recommend bypassing with a decoupling capacitor to ground.
38	VregVCO	passive	VCO regulator node; requires a 1-µF capacitor connected to ground.
39	GND	power_in	VCO ground.
40	GND	power_in	VCO ground.
41	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	TI
Package	VQFN-40(6x6)
Category	Embedded Peripheral ICs
Pins	41

CAD (KiCad official)

Symbol: LMX2595RHAR
Footprint: Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm
3D model: VQFN-40(6x6) (KiCad packages3D, STEP)
3D model files: lmx2595rhar-etched.step / lmx2595rhar-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmx2595rhar.step / lmx2595rhar.glb are the bare package body.

Provenance

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

Datasheet: TI datasheet (79 pp, sha256 b45795f4f33ad814, retrieved 2026-10-30, tier: manufacturer)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
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

LMX2595RHAR

Verified LMX2595RHAR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README

LMX2595RHAR

Pinout

Key specifications

CAD (KiCad official)

Provenance