The CHM1270a98F is a dual channel self-biased transmitter/receiver. One RF port used for reception and one for both emission and reception. This product is designed for optimum IF noise performances. This circuit is well adapted to the sensors system at W-Band, such as automotive long range radar an.
■ Very low 1/f noise
■ High LO/AM noise rejection
■ Low conversion loss
■ IF from DC to 100MHz
■ No DC bias required for mixer
■ On chip temperature sensor embedded
■ ESD strengthened
■ Chip size: 2.95 x 2.00 x 0.10mm
IFa_Lc (dB)
Vtemp
LO RFa / Tx
0° 76. 5GHz 90°
RFb
Rx BES
IFa IFb Transmitter/Receiver block diagram
20 18 16 14 12 10
8 6 4 2 0 74,5 75 75,5 76 76,5 77 77,5 78 78,5
F_lo (GHz)
On wafer typical IFa_Lc measurement
Main Electrical Characteristics
Tamb.= +25°C
Symbol
Parameter
FLO, FRF RF & LO Frequency range
FIF IF Frequency range
LcIFa LcIFb
IFa conversion loss IFb co.
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