MB54608L

FUJITSU SEMICONDUCTOR DATA SHEET DS04-23510-2E ASSP 1.0 GHz band Low Power I/Q Modulator For Direct Conversion MB54608L/MB54608B s 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. Fujitsu’s advanced Bipolar process has realized very low current operation(ICC = 16.5 mA @3 V). SSOP-20 and BCC-16 package are available.(MB54608L: SSOP-20, MB54608B: BCC-16) s 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 (Continued) s PACKAGES 20-pin plastic SSOP 16-pad plastic BCC (FPT-20P-M03) (LCC-16P-M04) MB54608L/MB54608B (Continued) 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 Offset Mixer not used Icc Pout(VBB=1.0 Vp–p) Ips 16.5 mA –4 dBm 19.0 mA –2 dBm Offset Mixer used 22.5 mA –4 dBm 25.0 mA –2 dBm Mode = Open Mode = GND Mode = Open Mode = GND Normal operation Power down 0.22 mA 0.44 mA Note:Typical values Further increase of the output power is possible by attaching a resistor at Pcnt pin. Operating temperature range: Ta = –20 to +7...