CC2480 datasheet(18/48 Pages) TI

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CC2480

Table 18: Pinout overview

Pin name

Pin type

Description

GND

Ground

The exposed die attach pad must be connected to a solid ground plane

N/A

GPIO3

Digital I/O

General I/O pin 3

GPIO2

Digital I/O

General I/O pin 2

SRDY

Digital Output

Slave ready. Mandatory for SPI, optional for UART.

MRDY

Digital Input

Master ready. Optional for SPI and UART.

DVDD

Power (Digital)

2.0V-3.6V digital power supply for digital I/O

GPIO1

Digital I/O

General I/O pin 1 – increased drive capability

GPIO0

Digital I/O

General I/Opin 0 – increased drive capability

RESET_N

Digital input

Reset, active low

CFG0

Digital Input

Configuration input 0

CFG1

Digital Input

Configuration input 1

SO/RX

Digital Input

SPI slave output or UART RX data

SI/TX

Digital Output

SPI slave input or UART TX data

SS/CT

Digital I/O

SPI slave select (in) or UART CTS (out)

C/RT

Digital Input

SPI clock or UART RTS

Analog Input

ADC input A0

Analog Input

ADC input A1

XOSC_Q2

Analog I/O

32 MHz crystal oscillator pin 2

AVDD_SOC

Power (Analog) 2.0V-3.6V analog power supply connection

XOSC_Q1

Analog I/O

32 MHz crystal oscillator pin 1, or external clock input

RBIAS1

Analog I/O

External precision bias resistor for reference current

AVDD_RREG

Power (Analog) 2.0V-3.6V analog power supply connection

RREG_OUT

Power output

1.8V Voltage regulator power supply output. Only intended for supplying the analog

1.8V part (power supply for pins 25, 27-31, 35-40).

AVDD_IF1

Power (Analog) 1.8V Power supply for the receiver band pass filter, analog test module, global bias

and first part of the VGA

RBIAS2

Analog output

External precision resistor, 43 k

Ω, ±1 %

AVDD_CHP

Power (Analog) 1.8V Power supply for phase detector, charge pump and first part of loop filter

VCO_GUARD

Power (Analog) Connection of guard ring for VCO (to AVDD) shielding

AVDD_VCO

Power (Analog) 1.8V Power supply for VCO and last part of PLL loop filter

AVDD_PRE

Power (Analog) 1.8V Power supply for Prescaler, Div-2 and LO buffers

AVDD_RF1

Power (Analog) 1.8V Power supply for LNA, front-end bias and PA

RF_P

RF I/O

Positive RF input signal to LNA during RX. Positive RF output signal from PA during

TXRX_SWITCH

Power (Analog) Regulated supply voltage for PA

RF_N

RF I/O

Negative RF input signal to LNA during RX

Negative RF output signal from PA during TX

AVDD_SW

Power (Analog) 1.8V Power supply for LNA / PA switch

AVDD_RF2

Power (Analog) 1.8V Power supply for receive and transmit mixers

AVDD_IF2

Power (Analog) 1.8V Power supply for transmit low pass filter and last stages of VGA

AVDD_ADC

Power (Analog) 1.8V Power supply for analog parts of ADCs and DACs

DVDD_ADC

Power (Digital)

1.8V Power supply for digital parts of ADCs

AVDD_DGUARD

Power (Digital)

Power supply connection for digital noise isolation

AVDD_DREG

Power (Digital)

2.0V-3.6V digital power supply for digital core voltage regulator

DCOUPL

Power (Digital)

1.8V digital power supply decoupling. Do not use for supplying external circuits.

32K_XOSC_Q2

Analog I/O

32.768 kHz XOSC

32K_XOSC_Q1

Analog I/O

32.768 kHz XOSC

N/A

DVDD

Power (Digital)

2.0V-3.6V digital power supply for digital I/O

N/A

CC2480 Data Sheet SWRS074A

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