Shanghai Belling Launches a 4-Channel Analog Front-End Chip for 400G/800G Optical Modules
Application Background
As AI With the rapid development of the industry, global data center construction has also entered a fast track, and optical module rates have swiftly advanced to 400G、800G even 1.6T of the new era. In this wave, the electro-absorption modulation scheme (EML) Silicon photonics integration solutions, leveraging their respective unique advantages, occupy a pivotal position in the data center optical module market.
Shanghai Belling is now launching a brand-new 4 Channel Analog Front-End Chip BL1035 , specifically for 400G/800GEML Tailor-made solutions to propel the data communications market to a new level.
Chip Introduction
BL1035 Internally integrated multi-channel current-type DAC , Multi-channel Voltage Type DAC , Multi-channel Analog-to-Digital Converter and internal reference voltage, with current / Voltage-driven, current / Voltage monitoring, over-temperature / Overvoltage / Rich features such as overcurrent alarm reporting.
Leveraging outstanding performance in low power consumption, small form factor, high integration, and a wide operating temperature range, BL1035 An ideal choice for an integrated, low-cost control solution in optical modules. 。
Main Functions
Current-type DAC
For the most 4 Road German Football Association The laser provides the maximum 200mA Low-noise bias current, while also featuring low power consumption. ; The forward voltage of each laser can be adjusted internally. Analog-to-Digital Converter Monitoring.
4 Channel, 12bit
Maximum per channel 200mA
Headroom As low as 300 mV @ 200 mA
Noise :8.9μApp(0.1Hz-10Hz) , noise power spectral density 42 nA/√Hz at 1 kHz Excellent temperature characteristics :10 ppm/°C (typical)
Voltage-type DAC
For the most 4 The line-powered absorption modulator provides a bias voltage, and the load current for each modulator channel can be adjusted internally. Analog-to-Digital Converter Monitoring 。
4 Channel, 12bit
Multiple gear options :0~+2.5V ， 0~+5V ， -2.5~0V ， -5~0
Load-carrying capacity : Great Scholar 50mA
Noise :62 μVpp (0.1 Hz - 10 Hz) , noise spectral density 814 nV/√Hz at 1 kHz
Excellent temperature characteristics :6 ppm/°C (typical)
Multi-channel Analog-to-Digital Converter
Can be achieved IDAC Voltage, VDAC Current, 4 External channel polling detection for the road; each channel can independently configure over-limit thresholds, sampling intervals, and averaging counts.
12bit，1MSPS
4 External input pins of the bus, 4 Road IDAC Voltage monitoring, 4 Road VDAC Current Detection
Integrated programmable threshold alarm
Programmable Logic Controller
Supports up to 48 Custom Polling Detection for Channels
Independent configuration of conversion time, average number of conversions, and over-limit threshold for each channel.
Built-in 2.5V Reference voltage
Excellent temperature characteristics 6 ppm/°C (typical)
Communication Interface
SPI (20 MHz) / I²C (400 kHz)
Supports adaptive mode detection
Typical application diagram:
Product Model
(Source: Shanghai Belling official website)
Hot News
2026 MCU Industry Outlook: Market Expansion, Technological Upgrades, and Supply Chain Restructuring
In 2026, the global microcontroller (MCU) industry is expected to maintain steady growth, driven by robust demand across multiple sectors, including automotive electrification, industrial automation, and IoT and AI infrastructure. At the same time, supply-chain constraints and successive price hikes will persist throughout the year. International industry leaders are accelerating their localization strategies, while domestic manufacturers continue to make breakthroughs in high-end offerings and product differentiation.