U2794B Datasheet, PDF (3/11 Pages) TEMIC Semiconductors – 1000 MHz Quadrature Demodulator

TELEFUNKEN Semiconductors
U2794B
Electrical Characteristics
W ^{Test conditions (unless otherwise specified); VS = 5 V, Tamb = 25°C, referred to test circuit}
System impedance Z_O = 50 , fiLO = 950 MHz, PiLO = –10 dBm
Parameters
Test Conditions / Pins
Symbol Min.
Typ.
Supply voltage range
Pins 5 and 6
V_S
4.75
Supply current
Pins 5 and 6
I_S
30
Power down mode, PD
“OFF”mode supply
V_PD ≤ 0.5 V Pins 5 and 6
IsPD
≤1
current
V_PD = 1.0 V Pin 14
20
Note 1
Switch voltage
Pin 14
“Power ON”
VPON
4
“Power DOWN”
VPOFF
LO input, LO_in
Frequency range
Pin 17
fiLO
70
Input level
Note 2
PiLO
–12
–10
Input impedance
See figure 6
ZiLO
50
Voltage standing wave See figure 2
ratio
VSWRLO
1.2
Duty cycle range
LODCR
0.4
RF input, RF_in
Noise figure (DSB)
@ 950 MHz Note 3
NF
12
symmetrical output
@ 100 MHz Pins 7 and 8
10
Max.
5.25
1
1000
–5
2
0.6
Unit
V
mA
mA
V
V
MHz
dBm
W
dB
Frequency range
–1 dB input
compression point
Second order IIP
Third order IIP
LO leakage
Input impedance
Pins 7 and 8
High gain
Low gain
Pins 7 and 8
Note 4
Pins 7 and 8
High gain
Low gain
Pins 7 and 8
Pins 7 and 8
Symmetric input
Asymmetric input
Pins 7 and 8
see figure 6
fiRF
ICPHG
ICPLG
IIP2HG
IIP3HG
IIP3LG
LOL
ZiRF
>fiLO
–8
dBm
+3.5
35
dBm
+3
dBm
+13
≤ –60
dBm
≤ –55
500Wø
0.8pF
 Note 1: During power down status a load circuitry with dc-isolation to GND is assumed otherwise a current of
I (V_S –0.8 V) /RI has to be added to the above power down current for each output I, IX, Q, QX.
Note 2: The required LO-Level is a function of the LO-frequency (see figure 3).
Note 3: Measured with input matching. For 950 MHz the optional transmission line T3 at the RF input may be used
for this purpose. Noise figure measurements without using the differential output signal result in a worse noise
figure.
Note 4: Using Pins 7 and 8 as a symmetric RF input, the second order IIP can be improved.
Rev. A3: 23.08.1995
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