Upstream CATV Amplifier
DescriptionThe MAX3510 is a programmable power amplifier for use in CATV upstream applications. The device outputs up to 64dBmV (continuous wave) through a 2:1 (voltage ratio) transformer. It features variable gain controlled by a 3-wire digital serial bus. Gain control is available in 1dB steps. The device operates over a frequency range of 5MHz to 65MHz.
The MAX3510 offers a transmit-disable mode, which places the device in a high-isolation state for use between bursts in TDMA systems. In this mode the output stage is shut off, minimizing output noise. When entering and leaving transmit-disable mode, transients are kept to 7mV nominal at full gain. In addition, supply current is reduced to 25mA.
Two power-down modes are available. Software-shutdown mode permits power-down of all analog circuitry while maintaining the programmed gain setting. Shutdown mode disables all circuitry and reduces current consumption to less than 10µA.
The MAX3510 is available in a 20-pin QSOP package for the extended-industrial temperature range (-40°C to +85°C).
- Ultra-Low Power-Up/Down Transients, 7mV Typical at 59dBmV Output
- Single +5V Supply
- Output Level Ranges from <8dBmV to 64dBmV
- Gain Programmable in 1dB Steps
- Low Transmit Output Noise Floor: -47dBmV (160kHz BW)
- Low Transmit-Disable Output Noise: -70dBmV
- Two Power-Down Modes
- Cable Modems
- Cable Television Set-Top Boxes
- CATV Status Monitors
Technical DocumentsTutorial 2866 Converting S-Parameters from 50Ω to 75Ω Impedance
App Note 1945 Performance of Maxim's Cable Upstream Amplifier Meets DOCSIS 2.0 Requirements
App Note 587 Block Diagram for MAX3510 Upstream CATV Amplifier Application
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C||Material Composition|
|Tutorial||2866||Converting S-Parameters from 50Ω to 75Ω Impedance|
|App Note||1945||Performance of Maxim's Cable Upstream Amplifier Meets DOCSIS 2.0 Requirements|
|App Note||587||Block Diagram for MAX3510 Upstream CATV Amplifier Application|