Features

Baseband Features

• 16 MHz main clock input
• Built-in internal ROM for program memory
• Connects simultaneously to two hosts (phones, tablets) over HFP/A2DP profiles
• Adaptive Frequency Hopping (AFH) avoids occupied RF channels
• Supports a fast connection

Audio Codec

• 20-bit Digital-to-Analog Converter (DAC) and 16-bit Analog-to-Digital Converter (ADC) codec
• 98 dB SNR DAC playback
• Built-in 1-channel 2.3W Class D amplifier for a 4Ω speaker (for IS2013/15S only)

RF Features

• Compatible with Bluetooth 4.1 (EDR) system in 2.4 GHz ISM band
• Combined TX/RX RF terminal simplifies external matching and reduces external antenna switches
• Maximum TX output power control is +4 dBm with 20 dB level control from register control
• 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
• Integrated synthesizer requires no external Voltage-Controlled Oscillator (VCO), varactor diode, resonator and loop filter
• Crystal oscillation with built-in digital trimming for temperature or process variations

DSP Audio Processing

• Supports 64 Kbps A-Law or μ-Law PCM format, or CVSD (Continuous Variable Slope Delta Modulation) for SCO channel operation
• Supports noise suppression
• Supports echo suppression
• SBC and optional AAC decoding
• Packet Loss Concealment (PLC)
• Built-in voice prompts for four languages (Chinese/English/Spanish/French) and 20 events for each one
  Note: Configure this functionality in the IS20XXS_UI tool.
• Supports Serial Copy Management System (SCMS-T) content protection

Peripherals

• Built-in lithium-ion battery charger (up to 350 mA)
• Integrated 1.8V and 3V configurable switching regulator and LDO
• Built-in ADC for battery monitor and voltage sensor
• A line-in port for external audio input
• Two LED drivers

Flexible HCI Interface

• High speed HCI-UART interface (supports up to 921600 bps)

Package Details

Applications