# CC1175RHBR

**Texas Instruments** · RF Transceiver ICs · VQFN-32-EP(5x5)

CC1175RHBR from Texas Instruments, in a VQFN-32-EP(5x5). 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 | VDD_GUARD | power_in | Guard ring supply pin connected to VDD in the 2.0-3.6 V range. |
| 2 | RESET_N | input | Asynchronous, active-low digital reset input. |
| 3 | GPIO3 | bidirectional | General-purpose digital I/O. |
| 4 | GPIO2 | bidirectional | General-purpose digital I/O. |
| 5 | DVDD | power_in | 2.0-3.6 V supply to the internal digital regulator. |
| 6 | DCPL | power_out | Digital regulator output for connection to an external decoupling capacitor. |
| 7 | SI | input | SPI serial data input. |
| 8 | SCLK | input | SPI serial data clock input. |
| 9 | SO(GPIO1) | bidirectional | SPI serial data output, which doubles as general-purpose digital I/O GPIO1. |
| 10 | GPIO0 | bidirectional | General-purpose digital I/O. |
| 11 | CSn | input | Active-low SPI chip select input. |
| 12 | DVDD | power_in | Digital supply pin connected to VDD in the 2.0-3.6 V range. |
| 13 | AVDD_IF | power_in | Analog IF supply pin connected to VDD in the 2.0-3.6 V range. |
| 14 | RBIAS | passive | Analog pin for an external high-precision bias resistor. |
| 15 | AVDD_RF | power_in | Analog RF supply pin connected to VDD in the 2.0-3.6 V range. |
| 16 | N.C. | unconnected | Not connected. |
| 17 | PA | output | Single-ended analog TX output that requires a DC path to VDD. |
| 18 | N.C. | unconnected | Not connected. |
| 19 | GND1 | power_in | Analog ground. |
| 20 | GND0 | power_in | Analog ground. |
| 21 | DCPL_VCO | power_out | Pin for external decoupling of the VCO supply regulator. |
| 22 | AVDD_SYNTH1 | power_in | Synthesizer analog supply pin connected to VDD in the 2.0-3.6 V range. |
| 23 | LPF0 | passive | Analog pin for external loop filter components. |
| 24 | LPF1 | passive | Analog pin for external loop filter components. |
| 25 | AVDD_PFD_CHP | power_in | PFD and charge pump analog supply pin connected to VDD in the 2.0-3.6 V range. |
| 26 | DCPL_PFD_CHP | power_out | Pin for external decoupling of the PFD and CHP regulator. |
| 27 | AVDD_SYNTH2 | power_in | Synthesizer analog supply pin connected to VDD in the 2.0-3.6 V range. |
| 28 | AVDD_XOSC | power_in | Crystal oscillator analog supply pin connected to VDD in the 2.0-3.6 V range. |
| 29 | DCPL_XOSC | power_out | Pin for external decoupling of the XOSC supply regulator. |
| 30 | XOSC_Q1 | passive | Crystal oscillator pin 1, which must be grounded if a TCXO or other external clock on EXT_XOSC is used. |
| 31 | XOSC_Q2 | passive | Crystal oscillator pin 2, which must be left floating if a TCXO or other external clock on EXT_XOSC is used. |
| 32 | EXT_XOSC | input | External clock input, which must be grounded if a regular crystal is connected to XOSC_Q1 and XOSC_Q2. |
| 33 | GND | power_in | Exposed ground pad that must be connected to a solid ground plane. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VQFN-32-EP(5x5) |
| Category | RF And Wireless |
| Pins | 33 |

## CAD (KiCad official)

- Symbol: `CC1175RHBR`
- Footprint: `Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm`
- 3D model: VQFN-32-EP(5x5) (KiCad packages3D, STEP)
- 3D model files: `cc1175rhbr-etched.step` / `cc1175rhbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `cc1175rhbr.step` / `cc1175rhbr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/cc1175.pdf) (31 pp, sha256 `e8f4896128be30ca`, retrieved 2026-11-05, tier: manufacturer)
- **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](docs/cc1175rhbr-datasheet.pdf)