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
21
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Europe: +44-1628-858-940
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Other factors that are also related to average current consumption include:
Whether transmitting six packets per connection interval with each packet containing 20 bytes
(which is the maximum for each packet)
An inaccurate 32.768 kHz master clock accuracy would increase the average current
consumption.
Measured Current Waveforms during Advertising and Connection
The following figures illustrate current waveforms observed as the BL652 module performs advertising and
connection functionality.
TX power – 4 dBm
Advert duration ~4.377 ms
29 byte payload
Advertising interval – 20 ms
Figure 4: Typical peak current consumption profile (with DCDC ON) during advertising in slave mode @ TX PWR +4 dBm. UART is OFF
TX: <8.8 mA
TX: <8.8 mA
TX: 8.8 mA
RX: 6 mA
Average current for BLE Advert
RX: 6 mA
RX: 6 mA