The IS2020 Stereo Audio Chip is a compact, highly integrated, CMOS single-chip RF and baseband IC for Bluetooth 5.0 applications. This chip is fully compliant with Bluetooth specification and completely backward-compatible with Bluetooth 3.0, 2.0 or 1.2 systems. It incorporates Bluetooth 1M/2M/3Mbps RF, single-cycle 8bit MCU, TX/RX modem, 5-port memory controller, task/hopping controller, UART interface, and Microchip’s own Bluetooth software stack.
To provide the superior audio and voice quality, it also integrates a DSP co-processor, a PLL, and a CODEC dedicated for voice and audio applications. For voice, not only basic CVSD encoding and decoding but also enhanced noise reduction and echo cancellation are implemented by the built-in DSP to achieve better quality in both sending and receiving sides. For the enhanced audio applications, SBC/AAC_LC decoding functions can be also carried out by DSP to satisfy Bluetooth A2DP requirements. In addition, to minimize the external components required for portable devices, a battery voltage sensor, battery charger, a switching regulator and LDO are integrated to reduce system BOM cost for various Bluetooth applications.
Additional Features
Bluetooth 5.0 certified
HFP 1.6
HSP 1.1
A2DP 1.2
AVRCP 1.5
SPP 1.0
PBAP 1.0
16MHz main clock input
Built-in internal ROM for program memory
HFP and A2DP simultaneous functionality
Adaptive Frequency Hopping (AFH) avoids occupied RF channels
Fast Connection supported RF Hardware
Combined TX/RX RF terminal simplifies external matching and reduces external antenna switches
Max. +4dBm output power
Built-in T/R switch for Class 2/3 application
To avoid temperature variation, temperature sensor with temperature calibration is utilized into bias current and gain control
Fully integrated synthesizer has been created. There requires no external VCO, varactor diode, resonator and loop filter
Crystal oscillation with built-in digital trimming for temperature/process variations
Supports 64 kb/s A-Law or µ-Law PCM format, or CVSD (Continuous Variable Slope Delta Modulation) for SCO channel operation
Noise suppression
Echo suppression
SBC and optional AAC decoding
Packet loss concealment
Build-in four languages (Chinese/ English/ Spanish/ French) voice prompts and 20 events for each one (This function can be set up in UI tool.)
20 bit DAC and 16 bit ADC codec
98dB SNR DAC playback
Built-in Lithium-ion battery charger (up to 350mA)
Integrate 3V, 1.8V configurable switching regulator and LDO
Built-in ADC for battery monitor and voltage sense
Two LED drivers
High speed HCI-UART (Universal Asynchronous Receiver Transmitter) interface (up to 921600bps) Package
6 x 6 mm2 48QFN package
The IS2020 Stereo Audio Chip is a compact, highly integrated, CMOS single-chip RF and baseband IC for Bluetooth 5.0 applications. This chip is fully compliant with Bluetooth specification and completely backward-compatible with Bluetooth 3.0, 2.0 or 1.2 systems. It incorporates Bluetooth 1M/2M/3Mbps RF, single-cycle 8bit MCU, TX/RX modem, 5-port memory controller, task/hopping controller, UART interface, and Microchip’s own Bluetooth software stack.
To provide the superior audio and voice quality, it also integrates a DSP co-processor, a PLL, and a CODEC dedicated for voice and audio applications. For voice, not only basic CVSD encoding and decoding but also enhanced noise reduction and echo cancellation are implemented by the built-in DSP to achieve better quality in both sending and receiving sides. For the enhanced audio applications, SBC/AAC_LC decoding functions can be also carried out by DSP to satisfy Bluetooth A2DP requirements.
In addition, to minimize the external components required for portable devices, a battery voltage sensor, battery charger, a switching regulator and LDO are integrated to reduce system BOM cost for various Bluetooth applications.
Additional Features
- Bluetooth 5.0 certified
- HFP 1.6
- HSP 1.1
- A2DP 1.2
- AVRCP 1.5
- SPP 1.0
- PBAP 1.0
- 16MHz main clock input
- Built-in internal ROM for program memory
- HFP and A2DP simultaneous functionality
- Adaptive Frequency Hopping (AFH) avoids occupied RF channels
- Fast Connection supported RF Hardware
- Combined TX/RX RF terminal simplifies external matching and reduces external antenna switches
- Max. +4dBm output power
- Built-in T/R switch for Class 2/3 application
- To avoid temperature variation, temperature sensor with temperature calibration is utilized into bias current and gain control
- Fully integrated synthesizer has been created. There requires no external VCO, varactor diode, resonator and loop filter
- Crystal oscillation with built-in digital trimming for temperature/process variations
- Supports 64 kb/s A-Law or µ-Law PCM format, or CVSD (Continuous Variable Slope Delta Modulation) for SCO channel operation
- Noise suppression
- Echo suppression
- SBC and optional AAC decoding
- Packet loss concealment
- Build-in four languages (Chinese/ English/ Spanish/ French) voice prompts and 20 events for each one (This function can be set up in UI tool.)
- 20 bit DAC and 16 bit ADC codec
- 98dB SNR DAC playback
- Built-in Lithium-ion battery charger (up to 350mA)
- Integrate 3V, 1.8V configurable switching regulator and LDO
- Built-in ADC for battery monitor and voltage sense
- Two LED drivers
- High speed HCI-UART (Universal Asynchronous Receiver Transmitter) interface (up to 921600bps) Package
- 6 x 6 mm2 48QFN package
