User's Manual
Table Of Contents
- 1 Overview and Key Features
- 2 Specification
- 2.1 Specification Summary
- 3 Hardware Specifications
- 3.3.4 OTA (Over-the-Air) smartBASIC Application Download
- 4 Power Consumption
- 5 Functional Description
- 5.1 Power Management (includes Brown-out and Power on Reset)
- 5.2 Clocks and Timers
- 5.3 Memory for smartBASIC Application Code
- 5.4 Radio Frequency (RF)
- 5.5 NFC
- 5.6 UART Interface
- 5.7 SPI Bus
- 5.8 I2C Interface
- 5.9 General Purpose I/O, ADC, PWM and FREQ
- 5.10 nRESET pin
- 5.11 nAutoRUN pin
- 5.12 vSP Command Mode
- 5.13 Two-wire Interface JTAG
- 5.14 BL652 Wakeup
- 5.15 Low Power Modes
- 5.16 Temperature Sensor
- 5.17 Random Number Generator
- 5.18 AES Encryption/Decryption
- 5.19 Optional External Serial (SPI) Flash
- 5.20 Optional External 32.768 kHz crystal
- 5.21 BL652-SA On-board Chip Antenna Characteristics
- 6 Hardware Integration Suggestions
- 7 Mechanical Details
- 8 Application Note for Surface Mount Modules
- 9 FCC and IC Regulatory Statements
- 10 Japan (MIC) Regulatory
- 11 CE Regulatory
- 12 EU Declarations of Conformity
- 13 Ordering Information
- 14 Bluetooth SIG Qualification
BL652
Datasheet
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
50
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Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852 2923 0610
Any metal closer than 20 mm will begin to significantly degrade performance (S11, gain, radiation
efficiency).
It is best that you test the range with a mock-up (or actual prototype) of the product to assess effects of
enclosure height (and materials, whether metal or plastic).
External Antenna Integration with BL652-SC
Please refer to the regulatory sections for FCC, IC, CE, and Japan for details of use of BL652-Sx with external
antennas in each regulatory region.
The BL652 family has been designed to operate with the below external antennas (with a maximum gain of
2.0 dBi). The required antenna impedance is 50 ohms. See Table 29. External antennas improve radiation
efficiency.
Table 29: External antennas for the BL652
External Antenna
Part Number
Laird Part
Number
Mfg.
Type
Gain
(dBi)
Connector Type
BL652 Part
Number
FlexPIFA (001-0022)
LSR
PCB
Dipole
2.0
IPEX-4
(See Note 1)
BL652-SC
FlexNotch (001-0023)
LSR
PCB
Dipole
2.0
IPEX-4
(See Note 1)
BL652-SC
EDA-8709-2G4C1-B27-CY
Mag.Layers
Dipole
2.0
IPEX-4
(See Note 1)
BL652-SC
RFDPA870910EMAB302
0600-00057
Walsin
Dipole
2.0
IPEX-4
(See Note 1)
BL652-SC
Note 1: Integral RF co-axial cable (1.13 mm OD) with length 100±5 mm and IPEX-4 compatible connector.
These antennas are available through Laird – please contact Sales for information.