Loads on click. Unloads only if this page sits in the background.

Symbol & Footprint

Schematic Symbol

Open full view ↗
Loads on click. Unloads only if this page sits in the background.

PCB Footprint

Open full view ↗
Loads on click. Unloads only if this page sits in the background.
Loads on click. Unloads only if this page sits in the background.
Download PDF
Contents

README

markdown

CDCLVD1212RHAR

Texas Instruments · Clock Buffers, Drivers, Distributors · VQFN-40-EP(6x6)

CDCLVD1212RHAR from Texas Instruments, in a VQFN-40-EP(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 IN_SEL input Input selection pin that chooses which clock input (IN0 or IN1) is routed to the outputs; it has an internal 200-kΩ pullup and pulldown, and leaving it open disables the outputs (static).
2 INP1 input Positive side of the redundant differential input pair 1, which can also be used as a single-ended input; the part accepts LVDS, LVPECL, or LVCMOS inputs.
3 INN1 input Negative side of the redundant differential input pair 1; in single-ended operation the appropriate bias voltage VAC_REF must be applied to this unused negative input.
4 VAC_REF1 output Bias voltage output for capacitively coupled inputs; if used, TI recommends a 0.1-µF capacitor to GND on this pin.
5 VCC power_in 2.5-V device supply; recommended range is 2.375 V to 2.625 V.
6 VCC power_in 2.5-V device supply; recommended range is 2.375 V to 2.625 V.
7 VAC_REF0 output Bias voltage output for capacitively coupled inputs; if used, TI recommends a 0.1-µF capacitor to GND on this pin.
8 INN0 input Negative side of the differential input pair 0, which can also be used as a single-ended input with VAC_REF applied to the unused pin.
9 INP0 input Positive side of the differential input pair 0, which can also be used as a single-ended input; the part accepts LVDS, LVPECL, or LVCMOS inputs.
10 N.C. unconnected No connect; this pin is not internally connected.
11 VCC power_in 2.5-V device supply; recommended range is 2.375 V to 2.625 V.
12 OUTP0 output Positive side of LVDS differential output pair 0, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
13 OUTN0 output Negative side of LVDS differential output pair 0, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
14 OUTP1 output Positive side of LVDS differential output pair 1, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
15 OUTN1 output Negative side of LVDS differential output pair 1, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
16 OUTP2 output Positive side of LVDS differential output pair 2, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
17 OUTN2 output Negative side of LVDS differential output pair 2, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
18 OUTP3 output Positive side of LVDS differential output pair 3, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
19 OUTN3 output Negative side of LVDS differential output pair 3, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
20 VCC power_in 2.5-V device supply; recommended range is 2.375 V to 2.625 V.
21 GND power_in Device ground; must be connected to the thermal pad ground.
22 OUTP4 output Positive side of LVDS differential output pair 4, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
23 OUTN4 output Negative side of LVDS differential output pair 4, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
24 OUTP5 output Positive side of LVDS differential output pair 5, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
25 OUTN5 output Negative side of LVDS differential output pair 5, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
26 OUTP6 output Positive side of LVDS differential output pair 6, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
27 OUTN6 output Negative side of LVDS differential output pair 6, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
28 OUTP7 output Positive side of LVDS differential output pair 7, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
29 OUTN7 output Negative side of LVDS differential output pair 7, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
30 GND power_in Device ground; must be connected to the thermal pad ground.
31 VCC power_in 2.5-V device supply; recommended range is 2.375 V to 2.625 V.
32 OUTP8 output Positive side of LVDS differential output pair 8, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
33 OUTN8 output Negative side of LVDS differential output pair 8, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
34 OUTP9 output Positive side of LVDS differential output pair 9, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
35 OUTN9 output Negative side of LVDS differential output pair 9, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
36 OUTP10 output Positive side of LVDS differential output pair 10, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
37 OUTN10 output Negative side of LVDS differential output pair 10, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
38 OUTP11 output Positive side of LVDS differential output pair 11, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
39 OUTN11 output Negative side of LVDS differential output pair 11, ANSI EIA/TIA-644A compatible; the output can handle a permanent short.
40 VCC power_in 2.5-V device supply; recommended range is 2.375 V to 2.625 V.
41 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VQFN-40-EP(6x6)
Category Clock/Timing
Pins 41

CAD (KiCad official)

  • Symbol: CDCLVD1212RHAR
  • Footprint: Package_DFN_QFN:QFN-40-1EP_6x6mm_P0.5mm_EP4.6x4.6mm
  • 3D model: VQFN-40-EP(6x6) (KiCad packages3D, STEP)
  • 3D model files: cdclvd1212rhar-etched.step / cdclvd1212rhar-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); cdclvd1212rhar.step / cdclvd1212rhar.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (26 pp, sha256 5074ca131810290a, retrieved 2026-10-07, 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