1FEATURES
2• RF Section
– Single-Chip 2.4-GHz Radio, Including
Embedded ANT Protocol
– Excellent Link Budget, Enabling Long
Range Without External Front-Ends
– Excellent Output Power (4 dBm)
– Suitable for Systems Targeting Compliance
With Worldwide Radio Frequency
Regulations: ETSI EN 300 328 and EN 300
440 Class 2 (Europe), FCC CFR47 Part 15
(US), and ARIB STD-T66 (Japan)
– Accurate Full-Range RSSI Function,
Especially Suited for Accurate Proximity
Pairing
• Layout
– Few External Components
– Reference Designs Available
– 40-Pin, 6-mm × 6-mm QFN Package
• Low Power
– Powered Down With Low-Power Timer:
1 μA
– Powered Down Without Timer: 0.5 μA
– Wide Supply Voltage Range (2 V–3.6 V)
• ANT Protocol Support
– Fully Compatible With the ANT and ANT+™
Protocols and Existing ANT Devices
– Built-In ANT-FS™ Support
– Easy Connection to Host MCU Through
Asynchronous or Synchronous Serial
Interface
– CC2570 Supports One ANT Channel
– CC2571 Supports Eight ANT Channels
– Support for Both Public, Private and
Managed ANT Networks
– Support for High-Resolution Proximity
Pairing

APPLICATIONS
• Sports and Fitness Equipment
• Health and Medical Equipment
• Consumer Health Devices
• Consumer Electronics

DESCRIPTION
The CC2570 and CC2571 are ANT RF network
processors that implement the easy-to-use,
power-efficient ANT protocol. The CC2570 supports
one ANT channel, whereas the CC2571 supports
eight ANT channels. The CC2570/71 can be
connected to a host MCU (such as an MSP430)
through a UART or SPI serial interface and accessed
through a set of API calls. The majority of the ANT protocol is built into the CC2570/71, including the
ANT-FS file system functionality; only the application
and profile layers must reside on the host MCU, thus
keeping host MCU memory requirements to a
minimum.
The ANT protocol has been designed to be very
power-efficient, yet is flexible enough to support
various network topologies (point-to-point, star,
connected star, 1-to-N, and N-to-1) and data transfer
modes (broadcast, acknowledged, burst data
transfer). Each logical ANT channel can be
independently configured for one-way or two-way
operation, depending on requirements of the
application.