■DESCRIPTION

The MB54608L/B is an I/Q Modulator for direct conversion method, and is used for up to 1.0 GHz band digital

cellular phones such as GSM, PDC and so on.

MB54608L consists of a frequency doubler, a Flip-flop type quadrature phase shifter, I/Q modulator and a mixer for frequency offset with a separate power supply.

■FEATURES

• Supporting GSM frequency band Output frequency: 1.0 GHz (max.) Output power: –4 dBm(Typical, VBB= 1.0 Vp-p input)

• Low voltage operation: VCC= 2.6 V to 3.8 V

• Low current: Please refer to below table.

• Offset mixer on-chip: The separate power supply control is possible. (only MB54608L)

• Output power level switch (Mode) enables high power mode

• Operating temperature range: Ta = –20 to +75°C