Characteristics

Block Diagram

Applications

2020 HOLTEK New Product Presentation

■ Internal dual-channel constant current outputs can directly drive IR LEDs

■ Internal smoke detector AFE for smoke signal amplification and processing

■ 16-bit voice D/A converter ■ Internal temperature sensor for device temperature characteristic

offset compensation

■ Supports in-application programming -IAP ■ Rich interfaces allow connection with wireless communication devices

NB-IoT Smoke Alarm BA45F5260 + BC28

A06

NB-IoT smoke detectors, voice smoke detectors, etc.

Indicator

Tact Switch Buzzer

NTC Thermistor

T

BA45F5260Resonant circuit

NB-IoT

3.6V

Smoke Detector

1

1

2

2

3

3

4

4

D D

C C

B B

A A

VCC

BAT3.6v

VDD VCC

BUZZERBA45F5260Power Circuit

LED

VDD

A0NI

A0PI

ISINK1

PB1

PB2

PA7 GND

PTP

RXDTXDRESET

VBAT

GND

NB Module

VCC

TXRXPA1

Smoke Circuit

VCC

ISINK0

A (6)A06