Overview
The BGA3131J, produced by NXP Semiconductors, is a DOCSIS 3.1 upstream amplifier designed to meet the stringent requirements of the Data Over Cable Service Interface Specifications (DOCSIS 3.1). This amplifier is specifically tailored for use in cable modems, CATV set-top boxes, and VoIP modems. It operates within a frequency range of 5 MHz to 205 MHz, making it highly versatile for various cable communication applications.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Operating Range | 5 MHz to 205 MHz |
| Gain Control Range | 58 dB in 1 dB increments |
| Maximum Voltage Gain | 37 dB |
| Incremental Gain Step Accuracy | ± 0.4 dB |
| Supply Voltage | 5 V |
| Package Type | 20-pin 5 mm x 5 mm leadless HVQFN |
| Noise Figure at Maximum Gain | 6.5 dB |
| IMD3 at 68 dBmV Total Output Power | -60 dBc |
| Second Harmonic Level at 68 dBmV Total Output Power | -65 dBc |
| Third Harmonic Level at 68 dBmV Total Output Power | -65 dBc |
| ACLR at 65 dBmV Output Power | -62 dBc |
| Current Consumption (typical in disable mode) | 25 mA |
Key Features
- 58 dB gain control range in 1 dB steps using a 3-wire serial interface
- Excellent linearity performance, meeting DOCSIS 3.1 ACLR specifications
- High incremental gain step accuracy of ± 0.4 dB
- Maximum voltage gain of 37 dB
- Excellent IMD3, second harmonic, and third harmonic levels
- Low noise figure of 6.5 dB at maximum gain
- 5 V single supply operation
- Excellent ESD protection at all pins
- Unconditionally stable operation
- Current consumption can be reduced in 4 steps via the serial interface
Applications
The BGA3131J is designed for various cable communication applications, including:
- Cable modems
- CATV set-top boxes
- VoIP modems
Q & A
- What is the frequency operating range of the BGA3131J?
The BGA3131J operates within a frequency range of 5 MHz to 205 MHz. - What is the gain control range of the BGA3131J?
The gain control range is 58 dB in 1 dB increments. - What is the maximum voltage gain of the BGA3131J?
The maximum voltage gain is 37 dB. - How is the gain controlled in the BGA3131J?
The gain is controlled via a 3-wire serial interface. - What is the supply voltage for the BGA3131J?
The supply voltage is 5 V. - What is the package type of the BGA3131J?
The package type is a 20-pin 5 mm x 5 mm leadless HVQFN. - What are the key linearity specifications of the BGA3131J?
The BGA3131J has excellent IMD3, second harmonic, and third harmonic levels, and it meets the DOCSIS 3.1 ACLR specifications. - How can the current consumption be optimized in the BGA3131J?
The current consumption can be reduced in 4 steps via the serial interface. - What is the typical current consumption in disable mode?
The typical current consumption in disable mode is 25 mA. - Is the BGA3131J unconditionally stable?
Yes, the BGA3131J is unconditionally stable.
