U2795B Datasheet, PDF (3/14 Pages) TEMIC Semiconductors – 2.5-GHz Double Balanced Mixer

U2795B
Functional Description
Supply Voltage
The IC is designed for a supply-voltage range of 2.7 V to 5.5 V. As the IC is internally
stabilized, the performance of the circuit is nearly independent of the supply voltage.
Input Impedance
The input impedance, Z_RFi, is about 700 W with an additional capacitive component. This
condition provides the best noise figure in combination with a matching network.
3rd Order Intercept Point The voltage divider, R_P/R₁, determinates both the input and output intercept point, IIP3
(IP3)
and OIP3. If the value of RP is infinite, the maximum value of IIP3 reachs about -4 dBm.
The IP3/R_P characteristics are shown in Figure 3 and Figure 4.
Output Impedance and
Intercept Point
The output impedance is shown in Figure 11. Both low output impedance and a high
intercept point are defined to a high value of R_P.
Current Consumption, I_S
Depending on the chosen input and output conditions of the IC, the current consump-
tion,I_S, is between 4 mA and 10 mA. The current consumption in dependence of Rp is
shown in Figure 6.
Power-up
Output Symmetry
This feature provides extended battery lifetime. If this function is not used, Pin 8 has to
be connected to V_S (Pin 1).
The symmetry of the load current can be matched and thus optimized for a given load
impedance.
Absolute Maximum Ratings
Parameters
Supply voltage
Input voltage
Junction temperature
Storage-temperature range
Symbol
V_S
V_I
T_j
T_stg
Value
6
0 to V_S
125
-40 to +125
Unit
V
V
°C
°C
Thermal Resistance
Parameters
Junction ambient SO8
Symbol
R_thJA
Value
175
Unit
K/W
Operating Range
Parameters
Supply-voltage range
Ambient-temperature range
Symbol
V_S
T_amb
Value
2.7 to 5.5
-40 to +85
Unit
V
°C
3
4654A–CELL–01/03