MAX3509 Upstream CATV Amplifier

The MAX3509 is a programmable power Amplifier for use in CATV upstream applications. The device outputs up to 66dBmV QPSK through a 1:1 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 5MHz to 65MHz frequency range.
The MAX3509 offers a transmit-disable mode, which places the device in a high-isolation state for use between bursts in TDMA systems. In this mode, all Analog functions are shut down, minimizing output noise and power consumption. When entering and leaving transmit-disable mode, transients are kept to 25mV nominal at full gain. In addition, supply current is reduced to 7.8mA.
An additional power-down mode is available. Shutdown mode disables all circuitry and reduces current consumption to less than 1A.
The MAX3509 is available in a 20-pin TSSOP-EP package for the extended-industrial temperature range(-40C to +85C).
By Maxim Integrated Products
MAX3509 's PackagesMAX3509 's pdf datasheet

MAX3509 Pinout, Pinouts
MAX3509 pinout,Pin out
This is one package pinout of MAX3509,If you need more pinouts please download MAX3509's pdf datasheet.

MAX3509 Application circuits
MAX3509 circuits
This is one application circuit of MAX3509,If you need more circuits,please download MAX3509's pdf datasheet.

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