# SJR-BTM544 (Component) ## Description Bluetooth module based on the Qualcomm QCC5144. It supports advanced audio algorithms such as Qualcomm aptX, aptX HD, and cVc Noise Cancellation Technology, and includes an integrated PMU with dual SMPS and a Li-ion battery charger. Ideal for applications such as wired/wireless stereo headsets, TrueWireless stereo earbuds, and USB to Bluetooth dongles. ## Component Details - **Owner:** yevha - **Created:** 9/17/2024 - **Last Updated:** 10/4/2024 - **Visibility:** Public - **Datasheet URL:** https://www.tianjiarun.com/zb_users/upload/2020/04/SJR-BTM544_SPEC.pdf - **Manufacturer Name:** Sky Jiarun Technologies Co., Ltd. - **Manufacturer Part Number:** SJR-BTM544 - **Package or Case Code:** Custom (13mm x 18mm x 2.8mm) - **Part Type:** IC - **Part Type:** Integrated Circuits - **Sub-Type:** Logic - **MPN:** SJR-BTM544 - **Mount Type:** Through Hole - **Package / Case Code:** Module - **Pin Count:** 54 - **Logic Function:** AND ## Pins | Pin | Name | Type | |-----|------|------| | 21 | GND | | | 14 | VBAT | | | 47 | GND | | | 24 | VDD_PADS1_3 | | | 22 | 1V8 | | | 45 | GND | | | 38 | GND | | | 44 | GND | | | 15 | GND | | | 23 | VDD_PADS6 | | | 42 | AUDIO_MIC1_N/LINEIN_L_N | | | 37 | AUDIO_HPL_P/SPKL_P | | | 39 | AUDIO_MIC_BIAS | | | 8 | USB_DN | | | 12 | CHG_EXT | | | 35 | AUDIO_HPR_P/SPKR_P | | | 36 | AUDIO_HPL_N/SPKL_N | | | 10 | VCHG | | | 9 | USB_DP | | | 43 | AUDIO_MIC1_P/LINEIN_L_P | | | 13 | SYS_CTRL | | | 7 | VBAT_SENSE | | | 11 | VCHG_SENSE | | | 34 | AUDIO_HPR_N/SPKR_N | | | 41 | AUDIO_MIC2_P/LINEIN_R_P | | | 40 | AUDIO_MIC2_N/LINEIN_R_N | | | 19 | AIO[4]/LED[4] | | | 17 | AIO[1]/LED[1] | | | 20 | AIO[5]/LED[5] | | | 18 | AIO[2]/LED[2] | | | 16 | AIO[0]/LED[0] | | | 6 | PIO[15] | | | 50 | PIO[43] | | | 53 | PIO[40] | | | 31 | PIO[2] | | | 26 | PIO[3] | | | 3 | PIO[18] | | | 5 | PIO[16] | | | 1 | PIO[20] | | | 4 | PIO[17] | | | 49 | PIO[44] | | | 33 | PIO[60] | | | 51 | PIO[42] | | | 28 | PIO[5] | | | 30 | PIO[7] | | | 48 | PIO[45] | | | 2 | PIO[19] | | | 27 | PIO[6] | | | 54 | PIO[21] | | | 29 | PIO[8] | | | 25 | PIO[4] | | | 32 | PIO[1] | | | 52 | PIO[41] | | | 46 | BT_RF | | --- *Generated from [https://www.flux.ai/yevha/sjr-btm544~m5](https://www.flux.ai/yevha/sjr-btm544~m5)*