Data Sheet

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Table Of Contents

1Introduction
- 1.1Naming Declaration
- 1.2 Block Diagram
- 1.3 Applications
2General Specification
3Pin Configuration
4Pin Definition
- 4.1 BTM901 Pin Definition:
5Device Details
- 5.1 Audio Subsystem
- 5.2Application Subsystem
- 5.3Bluetooth Subsystem
- 5.4Li-ion Battery Charger
- 5.5 Power Management
- 5.6Audio Engine And Digital Audio Interfaces
6Bluetooth Subsystem
- 6.1 Bluetooth v5.1
- 6.2 Bluetooth Radio
- 6.3 Receiver
- 6.4 Transmitter
7System Power States
- 7.1 No Power State
- 7.2 Active State No Power State
- 7.3Shallow Sleep State
- 7.4 Deep Sleep State
- 7.5 Dormant State
- 7.6 Off State
- 7.7 Transition Between Static Power States
- 7.8 Power Islands
8Host Interfaces Subsystem
- 8.1 Host Interfaces Subsystem Features
9Applications Subsystem
- 9.1Application Subsystem Features
10Audio Subsystem
- 10.1Audio Subsystem Features
- 10.2Dual Core Kalimba
- 10.3Program ROM
- 10.4 Program RAM And Caches
- 10.5Data RAM
- 10.6Buffer Access Controller
- 10.7 Audio Engine
  - 10.7.1Active Noise Cancellation
11Audio Subsystem
- 11.1Analog Audio Interfaces
  - 11.1.1Line/Mic Inputs
  - 11.1.2 Line/Headphone Outputs
- 11.2Digital Audio Interfaces
12Peripheral Interfaces
- 12.1PIO
- 12.2Standard I/O
- 12.3Pad Multiplexing
- 12.4RESET# reset Pin
- 12.5SYS_CTRL Pin
- 12.6LED Pads
- 12.7LED Controllers
- 12.8USB Interface
  - 12.8.1USB Device Port
- 12.9USB Charger Detection
13System Manager
- 13.1System Timer
14PMU Subsystem
- 14.1Li-ion Charger
- 14.2General Charger Operation
- 14.3Charging Modes
- 14.4Charger With External Transistor
  - 14.4.1Selection of Sense Resistor Value
  - 14.4.2Selection of PNP Transistor
15Bluetooth Performance Specification
16Reference Design
17Recommended Reflow Profile
18 Mechanical Characteristic
19 Recommended PCB Layout and Mounting Pattern
20 Ordering Information
- 20.1 Product Packaging Information
- 20.2 Ordering Information
21 Cautions &Warnings
- 21.1 FCC Statement
- 21.2 RF Warning Statement
- 21.3 IC Statement
- 21.4 FLC-BTM901 Label Instructions
- 21.5 FLC-BTM901 Antenna Statement
  - 21.5.1BTM901A and BTM901C (Without Antenna)
  - 21.5.2BTM901B and BTM901D (With Antenna)
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FLC-BTM901 Datasheet

Flaircomm Microelectronics,Inc. - 46-

18 Mechanical Characteristic

Figure 5：BTM901IQ2A/IQ2B