max3532应用电路
典型工作电路
the max3532 is a programmable power amplifier for use in upstream cable applications. the device outputs up to 62dbmv (continuous wave) through a 1:2 (voltage ratio) transformer when driven with 36dbmv at its input. it features variable gain, which is controlled via a 3-wire digital serial bus and available in 1db steps. the operating frequency ranges from 5mhz to 42mhz.
the max3532 offers three operating modes: high power, low noise, and transmit disable. high-power mode achieves the highest output levels, while low-noise mode achieves the lowest output noise when driving lower output levels. transmit disable mode places the device in a high-isolation state with minimum output noise, for use between bursts in tdma systems.
two power-down modes are also 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 below 10µa.
the max3532 comes in a 36-pin ssop package screened for the extended-industrial temperature range (-40°c to +85°c).
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MAX3532应用电路
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