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What is IS2025?

This electronic component, produced by the manufacturer "ISSC", performs the same function as "Bluetooth 4.1 Stereo Audio SOC".


IS2025 Datasheet PDF - ISSC

Part Number IS2025
Description Bluetooth 4.1 Stereo Audio SOC
Manufacturers ISSC 
Logo ISSC Logo 


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Total 30 Pages



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IS2020/21/23/25 SoC
Bluetooth® 4.1 Stereo Audio SOC
Features
System Specification
Compliant with Bluetooth Specification v.4.1
(EDR) in 2.4 GHz ISM band
It supports following profiles :
- HFP 1.6
- HSP 1.1
- A2DP 1.2
- AVRCP 1.5
- SPP 1.0
- PBAP 1.0
Baseband Hardware
16MHz main clock input
Built-in internal ROM for program memory
Support to connect to two hosts ( phones,
tablets…) with HFP or A2DP profiles
simultaneously
Adaptive Frequency Hopping (AFH) avoids
occupied RF channels
Fast Connection supported
RF Hardware
Fully Bluetooth 4.1 (EDR) system in 2.4 GHz
ISM band.
Combined TX/RX RF terminal simplifies
external matching and reduces external
antenna switches.
Max. +4dBm output power 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.
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.
Audio processor
Support 64 kb/s A-Law or -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
IS20XXS_UItool.)
Support SCMS-T
Audio Codec
20 bit DAC and 16 bit ADC codec
98dB SNR DAC playback
Built-in 2 channel 2.3W class-D amplifier for a
4Ω speaker (for IS2025S only)
Peripherals
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.
A line-in port for external audio input
Two LED drivers
Flexible HCI interface
High speed HCI-UART (Universal
Asynchronous Receiver Transmitter) interface
(up to 921600bps)
Package
5x6.5mm2 48QFN package (IS2021S)
7x7mm2 56QFN package (IS2020S, IS2023S)
8x8mm2 68QFN package (IS2025S)
Description
Stereo Audio Chip is a compact, highly
integrated, CMOS single-chip RF and
baseband IC for Bluetooth v4.1 with Enhanced
Data Rate 2.4GHz 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,
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IS2025 equivalent
Stereo Audio SoC
2.0 KEY FEATURES TABLE
Feature
Chip IS2020S
Application
Stereo/Mono
Pin count
Dimension (mm2)
Audio DAC output
DAC (single-end) [email protected] (dB)
DAC (cap-less) [email protected] (dB)
ADC SNR @2.8V (dB)
I2S digital interface
Analog Aux- in
Mono MIC
Support external audio AMP
Build-in Class-D amplifier
UART
LED Driver
Internal DC-DC step-down
regulator
DC 5V Adaptor Input
Battery Charger (350mA max)
IO Pin for Application
Button support
Support NFC application
Voice prompt
Multi-tone
Internal DSP sound effect
Profile
HFP
AVRCP
A2DP
PBAP
HSP
SPP
Build-in EEPROM
Note: “” means support the feature.
Headset /
Speaker
Stereo
56
7X7
2-ch
-98
-96
-90
X
2
X
2
9
6
1.6
1.5
1.2
1.0
1.1
1.0
X
IS2021S
IS2023S
IS2025S
Headset
Stereo
48
5X6.5
2-ch
-98
-96
-90
X
X
1
X
X
2
8
6
I2S Speaker
Stereo
56
7X7
X
X
X
-90
1
X
X
2
X
6
X
Speaker
Stereo
68
8X8
2-ch
-98
-96
-90
X
2
2-ch
2
10
6
1.6
1.5
1.2
1.0
1.1
1.0
(128k)
1.6
1.5
1.2
1.0
1.1
1.0
X
1.6
1.5
1.2
1.0
1.1
1.0
X
Page 5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for IS2025 electronic component.


Information Total 30 Pages
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Download [ IS2025.PDF Datasheet ]

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