1.0 GHz band Low Power I/Q Modulator For Direct Conversion
FUJITSU SEMICONDUCTOR DATA SHEET
DS04-23510-2E
ASSP
1.0 GHz band Low Power I/Q Modulator For Direct Conversion
MB546...
Description
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...
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