Overview
The BGA3031 is a DOCSIS 3.0 plus upstream amplifier produced by NXP Semiconductors. It is designed to meet the stringent requirements of Data Over Cable Service Interface Specifications (DOCSIS 3.0) and is particularly suited for applications in cable modems, CATV set-top boxes, and VoIP modems. The device operates within a frequency range of 5 MHz to 85 MHz and offers a 58 dB gain control range in 1 dB increments, ensuring high incremental accuracy and superior linear performance.
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 |
| Supply Current | VCC = 5 V; current setting = 3; Tamb = 25 °C | - | - | - | mA |
| ACLR (Adjacent Channel Leakage Ratio) | DOCSIS 3.0; 64-QAM; Pi = 29 dBmV; PL = 57 dBmV | -50 | -68 | - | dBc |
| Operating Frequency | - | 5 MHz | - | 85 MHz | Hz |
| Supply Voltage | - | - | 5 | - | V |
| Package Type | - | - | HVQFN20 | - | - |
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
- Excellent noise figure of 3.5 dB at maximum gain
- 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
- CATV set-top boxes
Q & A
- What is the BGA3031 used for? The BGA3031 is used as a DOCSIS 3.0 plus upstream amplifier in applications such as cable modems, CATV set-top boxes, and VoIP modems.
- What is the operating frequency range of the BGA3031? The BGA3031 operates within a frequency range of 5 MHz to 85 MHz.
- How is the gain controlled in the BGA3031? The gain is controlled via a 3-wire serial interface with a 58 dB gain control range in 1 dB increments.
- What is the maximum voltage gain of the BGA3031? The maximum voltage gain is 34 dB.
- What are the harmonic levels of the BGA3031? The second and third harmonic levels are -80 dBc and -67 dBc respectively at 64 dBmV output power.
- Is the BGA3031 compliant with RoHS? Yes, the BGA3031 is compliant to Directive 2002/95/EC, regarding Restriction of Hazardous Substances (RoHS).
- What is the package type of the BGA3031? The BGA3031 is housed in a 20-pin HVQFN (Heat Enhanced Very Thin Quad Flat No-Lead) package.
- How does the BGA3031 manage power consumption? 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 supply current of the BGA3031? The typical supply current is dependent on the current setting and temperature but can be reduced to as low as 6 mA in disable mode.
- Can the BGA3031 transmit multiple modulated carriers? Yes, it can transmit 1 to 8 64-QAM modulated carriers while meeting DOCSIS 3.0 ACLR specifications.
