SWRS120E June 2011 – October 2014 CC1125
PRODUCTION DATA.
The following table lists the pin-out configuration for the CC1125 device.
PIN NO. | PIN NAME | TYPE / DIRECTION | DESCRIPTION |
---|---|---|---|
1 | VDD_GUARD | Power | 2.0–3.6 V VDD |
2 | RESET_N | Digital input | Asynchronous, active-low digital reset |
3 | GPIO3 | Digital I/O | General-purpose I/O |
4 | GPIO2 | Digital I/O | General-purpose I/O |
5 | DVDD | Power | 2.0–3.6 VDD to internal digital regulator |
6 | DCPL | Power | Digital regulator output to external decoupling capacitor |
7 | SI | Digital input | Serial data in |
8 | SCLK | Digital input | Serial data clock |
9 | SO(GPIO1) | Digital I/O | Serial data out (general-purpose I/O) |
10 | GPIO0 | Digital I/O | General-purpose I/O |
11 | CSn | Digital input | Active-low chip select |
12 | DVDD | Power | 2.0–3.6 V VDD |
13 | AVDD_IF | Power | 2.0–3.6 V VDD |
14 | RBIAS | Analog | External high-precision resistor |
15 | AVDD_RF | Power | 2.0–3.6 V VDD |
16 | N.C. | Not connected | |
17 | PA | Analog | Single-ended TX output (requires DC path to VDD) |
18 | TRX_SW | Analog | TX and RX switch. Connected internally to GND in TX and floating (high-impedance) in RX. |
19 | LNA_P | Analog | Differential RX input (requires DC path to GND) |
20 | LNA_N | Analog | Differential RX input (requires DC path to GND) |
21 | DCPL_VCO | Power | Pin for external decoupling of VCO supply regulator |
22 | AVDD_SYNTH1 | Power | 2.0–3.6 V VDD |
23 | LPF0 | Analog | External loop filter components |
24 | LPF1 | Analog | External loop filter components |
25 | AVDD_PFD_CHP | Power | 2.0–3.6 V VDD |
26 | DCPL_PFD_CHP | Power | Pin for external decoupling of PFD and CHP regulator |
27 | AVDD_SYNTH2 | Power | 2.0–3.6 V VDD |
28 | AVDD_XOSC | Power | 2.0–3.6 V VDD |
29 | DCPL_XOSC | Power | Pin for external decoupling of XOSC supply regulator |
30 | XOSC_Q1 | Analog | Crystal oscillator pin 1 (must be grounded if a TCXO or other external clock connected to EXT_XOSC is used) |
31 | XOSC_Q2 | Analog | Crystal oscillator pin 2 (must be left floating if a TCXO or other external clock connected to EXT_XOSC is used) |
32 | EXT_XOSC | Digital input | Pin for external clock input (must be grounded if a regular crystal connected to XOSC_Q1 and XOSC_Q2 is used) |
– | GND | Ground pad | The ground pad must be connected to a solid ground plane. |