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- What:
- An indication of the amount of output power a device can produce. P 1 dB can be interpreted as the maximum linear power available from the device; it is defined as the output power at which the gain has decreased (compressed) 1 dB from the small signal value. P sat or saturated output power is the maximum power under any conditions; a rule of thumb is P sat is 3 dB greater than P 1dB. Output power is a strong function of bias, being proportional to both the square of the operating voltage and the square of the bias current.
- Direction:
- needs to fit application
P 1db must be large enough to allow a transistor to produce a signal of the required magnitude and distortion. Too low a level will lead to under-driving the following stage or unacceptable distortion. Too large a level may mean inefficient operation.
- Range:
- 0 - 32 dBm
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