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AD8348
SPECIFICATIONS
V S = 5 V, T A = 25 o C, F LO = 380 MHz, F IF = 381 MHz, P LO = ?10 dBm, R S (LO) = 50 Ω, R S (IFIP and MXIP/MXIN) = 200 Ω, unless
otherwise noted.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
OPERATING CONDITIONS
LO Frequency Range
IF Frequency Range
Baseband Bandwidth
External input = 2 × LO frequency
100
50
75
2000
1000
MHz
MHz
MHz
LO Input Level
V SUPPLY (V S )
Temperature Range
50 Ω source
?12
2.7
?40
?10
0
5.5
+85
dBm
V
°C
IF FRONT END WITH VGA
IFIP to IMXO (QMXO),
ENVG = 5 V, IMXO/QMXO load = 1.5 kΩ
Input Impedance
Gain Control Range
Maximum Conversion Voltage Gain
Minimum Conversion Voltage Gain
3 dB Bandwidth
Gain Control Linearity
IF Gain Flatness
Input 1 dB Compression Point (P1dB)
Second-Order Input Intercept (IIP2)
Measured differentially across MXIP/MXIN
VGIN = 0.2 V (maximum voltage gain)
VGIN = 1.2 V (minimum voltage gain)
VGIN = 0.4 V (+21 dB) to 1.1 V (?14 dB)
F IF = 380 MHz ± 5% (VGIN = 1.2 V)
F IF = 900 MHz ± 5% (VGIN = 1.2 V)
VGIN = 0.2 V (maximum gain)
VGIN = 1.2 V (maximum gain)
IF1 = 385 MHz, IF2 = 386 MHz
+3 dBm each tone from 200 Ω source,
200||1.1
44
25.5
?18.5
500
±0.5
0.1
1.3
?22
+13
65
Ω||pF
dB
dB
dB
MHz
dB
dB p-p
dB p-p
dBm
dBm
dBm
VGIN = 1.2 V (minimum gain)
Third-Order Input Intercept (IIP3)
?42 dBm each tone from 200 Ω source,
VGIN = 0.2 V (maximum gain)
IF1 = 381 MHz, IF2 = 381.02 MHz
Each tone 10 dB below P1dB from
200 Ω source,
VGIN = 1.2 V (minimum gain)
Each tone 10 dB below P1dB from
200 Ω source,
VGIN = 0.2 V (maximum gain)
18
28
?8
dBm
dBm
dBm
LO Leakage
Demodulation Bandwidth
Measured at IFIP, IFIN
Measured at IMXO/QMXO (LO = 50 MHz)
Small signal 3 dB bandwidth
?80
?60
75
dBm
dBm
MHz
Quadrature Phase Error 1
LO = 380 MHz (LOIP/LOIN 760 MHz)
?0.7
±0.1
+0.7
Degrees
vs. temperature
vs. baseband frequency (dc to 30 MHz)
?0.0032
+0.01
°/°C
°/MHz
I/Q Amplitude Imbalance 1
Noise Figure (Double Sideband)
vs. temperature
vs. baseband frequency (dc to 30 MHz)
Maximum gain, from 200 Ω source,
?0.3
±0.05
0
±0.0125
10.75
+0.3
dB
dB/°C
dB
dB
F IF = 380 MHz
Mixer Output Impedance
40
Ω
Capacitive Load
Resistive Load
Mixer Peak Output Current
Shunt from IMXO, QMXO to VCMO
Shunt from IMXO, QMXO to VCMO
0
200
1.5
2.5
10
pF
kΩ
mA
Rev. A | Page 3 of 28
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