TL321x BLE Multiple Connection SDK Current Test Report
Overview
The TL321x BLE Multiple Connection SDK Current Test Report applies to Telink TL321x series chip.
Test Environment
Software and Hardware
The hardware and software for the test are listed as below:
- Test board: C1T331A20_V1.0/C1T335A20_V1.0 with TL321x chip
- SDK: tl_ble_sdk V4.0.4.2 (Note: this report uses the optimized code based on this version, while the system clock is adjusted to XTAL_24M.)
- Test tool: Agilent Precision DC Power Analyzer (Model: N6705B), Multimeter FLUKE 287C
- Power supply: Agilent_N6705
Test Method and Test Item
Test Method
The Agilent N6705B was used to supply 3.3V to the test board. When the test board was advertising, the Agilent N6705B was used to record the current waveform and data in the advertising state of the test board; the test board was connected to the 8258 dongle and the Agilent N6705B was used to record the current waveform and data in the connected state of the test board.
Power the test board at 3.3V using a downloader, and connect in series the multimeter FLUKE 287C into the circuit for current test in the advertising and long connection states.
Note: The tables of average current in the text for the advertising state and the long connection are based on data measured by the Multimeter FLUKE 287C, and the rest are based on data measured by the Agilent N6705B.
Test Item
(1) Current test in advertising state
The current test conditions in the advertising state are as follows.
- Power supply: 3.3V
- ADV type: CONNECT_12B_1S_3CHANNEL, UNCONNECT_16B_1S_3CHANNEL
- TX power: 0dBm, 3dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: suspend, deep retention
(2) Current test in long connection
The current test conditions in the long connection state are as follows.
- CL (Connection Interval): 10 ms
- SL (Slave Latency): 99
- Power supply: 3.3V
- TX power: 0dBm, 3dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: suspend, deep retention
Test in Advertising State
CONNECT adv & 0dBm & Deep retention
Test condition 1 for advertising state (CONNECT adv & 0dBm & Deep retention):
- Power supply: 3.3V
- ADV type: CONNECT_12B_1S_3CHANNEL
- TX power: 0dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Deep retention
UNCONNECT adv & 0dBm & Suspend
Test condition 2 for advertising state (UNCONNECT adv & 0dBm & Suspend):
- Power supply: 3.3V
- ADV type: UNCONNECT_16B_1S_3CHANNEL
- TX power: 0dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Suspend
CONNECT adv & 3dBm & Deep retention
Test condition 3 for advertising state (CONNECT adv & 3dBm & Deep retention):
- Power supply: 3.3V
- ADV type: CONNECT_12B_1S_3CHANNEL
- TX power: 3dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Deep retention
UNCONNECT adv & 3dBm & Suspend
Test condition 4 for advertising state (UNCONNECT adv & 3dBm & Suspend):
- Power supply: 3.3V
- ADV type: UNCONNECT_16B_1S_3CHANNEL
- TX power: 3dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Suspend
The average current for each test condition in the advertising state with Internal 32K RC are as follows.
Test in Long Connection
0dBm & Deep retention
Test condition 1 for long connection (0dBm & Deep retention):
- CI (Connection Interval): 10 ms
- SL (Slave Latency): 99
- Power supply: 3.3V
- TX power: 0dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Deep retention
3dBm & Deep retention
Test condition 2 for long connection (3dBm & Deep retention):
- CL (Connection Interval): 10 ms
- SL (Slave Latency): 99
- Power supply: 3.3V
- TX power: 3dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Deep retention
0dBm & Suspend
Test condition 3 for long connection (0dBm & Suspend):
- CL (Connection Interval): 10 ms
- SL (Slave Latency): 99
- Power supply: 3.3V
- TX power: 0dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Suspend
3dBm & Suspend
Test condition 4 for long connection (3dBm & Suspend):
- CL (Connection Interval): 10 ms
- SL (Slave Latency): 99
- Power supply: 3.3V
- TX power: 3dBm
- Mode: LDO&DCDC mode
- 32K clock source: Internal 32KHz RC
- PM: Suspend
The average current for each test condition in the long connection are as follows.