Overview
The BGA3031J, produced by NXP USA Inc., is a DOCSIS 3.0 plus upstream amplifier designed for various cable communication applications. This device is optimized for use in cable modems, VoIP modems, and set-top boxes. It operates within the frequency range of 5 MHz to 85 MHz and offers a high degree of gain control and linearity, making it suitable for demanding cable network environments.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Voltage Gain | Gain code = 111111 | - | 34 | - | dB |
| Voltage Gain | Gain code = 000000 | - | -24 | - | dB |
| Gain Flatness | f = 5 MHz to 42 MHz | - | ±0.4 | - | dB |
| Noise Figure | At maximum gain | - | 3.5 | - | dB |
| Supply Voltage | - | - | 5 | - | V |
| Supply Current | Current setting = 3; Tamb = 25°C | - | 290 | 325 | mA |
| Package | - | - | 20-pin HVQFN | - | - |
Key Features
- 58 dB gain control range in 1 dB increments using a 3-wire serial interface
- Operating frequency range of 5 MHz to 85 MHz
- ±0.2 dB incremental gain step accuracy
- Maximum voltage gain of 34 dB
- Excellent IMD3 of -70 dBc at 64 dBmV output power
- Excellent second and third harmonic levels of -80 dBc and -67 dBc respectively at 64 dBmV output power
- Capable of transmitting 1 to 8 64-QAM modulated carriers while meeting DOCSIS 3.0 ACLR specifications
- Compliant to Directive 2002/95/EC regarding Restriction of Hazardous Substances (RoHS)
Applications
- DOCSIS 3.0 and DOCSIS 3.0 + 4 dB cable modems
- VoIP modems
- Set-top boxes
Q & A
- What is the operating frequency range of the BGA3031J?
The BGA3031J operates within the frequency range of 5 MHz to 85 MHz. - What is the maximum voltage gain of the BGA3031J?
The maximum voltage gain is 34 dB. - How is the gain controlled in the BGA3031J?
The gain is controlled via a 3-wire serial interface with 58 dB gain control range in 1 dB increments. - What is the noise figure of the BGA3031J at maximum gain?
The noise figure is 3.5 dB at maximum gain. - What type of modulation does the BGA3031J support?
The BGA3031J supports 1 to 8 64-QAM and QPSK modulated carriers. - What is the package type of the BGA3031J?
The BGA3031J is housed in a 20-pin HVQFN package. - Is the BGA3031J compliant with RoHS?
Yes, the BGA3031J is compliant to Directive 2002/95/EC regarding Restriction of Hazardous Substances (RoHS). - What are the typical supply current values for the BGA3031J?
The supply current ranges from 290 mA to 325 mA depending on the current setting. - How can the current consumption be optimized in the BGA3031J?
The current consumption can be reduced in 4 steps via the serial interface, and it is automatically reduced at lower gain settings while preserving linearity performance. - What is the typical current draw in disable mode for the BGA3031J?
In disable mode, the device draws a typical current of 6 mA.
