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
23
© Copyright 2016 Laird. All Rights Reserved
Americas: +1-800-492-2320
Europe: +44-1628-858-940
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Adding the IDLE current (StandbyDoze mode) to the inactive part of the interval:
TOT_avg = BLE_avg + IDLE * (BLE_interval - BLE_length) / BLE_interval
Performing the calculation with the numbers 25mS advertising internal and TX power for 4dBm for example:
BLE_charge = 4.377 ms * 2.91 mA = 12.74 uC
BLE_avg = 12.74 uC / 25 ms + 5 ms) = 509.78 uA
TOT_avg = 509.78 uA + 2 uA * (25 ms - 4.377 ms)/25 ms = 511.43 uA
Table 10 and Table 11 display the measured "Average Advert (Burst) current" (for a given TX power) which can be
used to calculate the Total average current for any advertising interval.
Table 12 and Table 13 display the measured "Average Connection (Burst) current" (for a given TX power) which
can be used to calculate the Total average current for any connection interval.
The following table (Table 10) shows the measured total average current consumption profile (with DCDC on)
during advertising in slave mode versus TX power for a minimum advertising interval of 25 milliseconds. Note
that UART is off.
Table 10: Measured total average current consumption profile – for a minimum advertising interval of 25 ms
TX
Power
(dBm)
Average
Advert
(Burst)
Current
(uA)
Average
Advert
(Burst)
Duration
(mS)
BLE
Advert
Charge
(uC)
BLE Advert
Interval
20 mS plus
5 mS
Perturbation
BLE
Advert
Average
(uA)
Max
Standby
Doze
Current
(uA)
BLE Advert
Interval
20 mS plus
5 mS
Pertubation
Total
Average
Current
(uA)
4
2911.726
4.377
12744.625
25
509.785
2
25
511.435
0
2431.095
4.377
10640.903
25
425.636
2
25
427.286
-4
2163.884
4.377
9471.320
25
378.853
2
25
380.503
-8
2151.602
4.377
9417.562
25
376.702
2
25
378.352
-12
2086.596
4.377
9133.031
25
365.321
2
25
366.971
-16
2052.041
4.377
8981.783
25
359.271
2
25
360.921
-20
2029.615
4.377
8883.625
25
355.345
2
25
356.995
-40
1960.112
4.377
8579.410
25
343.177
2
25
344.826
The following table (Table 11) shows the measured total average current consumption profile (with DCDC on)
during advertising in slave mode versus TX power for a maximum advertising interval of 10240 milliseconds. Note
that UART is off.