ad8348-eval Analog Devices, Inc., ad8348-eval Datasheet - Page 3
![no-image](/images/no-image-200.jpg)
ad8348-eval
Manufacturer Part Number
ad8348-eval
Description
50 Mhz To 1000 Mhz Quadrature Demodulator
Manufacturer
Analog Devices, Inc.
Datasheet
1.AD8348-EVAL.pdf
(28 pages)
SPECIFICATIONS
V
otherwise noted.
Table 1.
Parameter
OPERATING CONDITIONS
IF FRONT END WITH VGA
S
LO Frequency Range
IF Frequency Range
Baseband Bandwidth
LO Input Level
V
Temperature Range
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)
Third-Order Input Intercept (IIP3)
LO Leakage
Demodulation Bandwidth
Quadrature Phase Error
I/Q Amplitude Imbalance
Noise Figure (Double Sideband)
Mixer Output Impedance
Capacitive Load
Resistive Load
Mixer Peak Output Current
= 5 V, T
SUPPLY
(V
A
S
)
= 25
o
C, F
LO
= 380 MHz, F
1
1
IF
= 381 MHz, P
Conditions
External input = 2 × LO frequency
50 Ω source
IFIP to IMXO (QMXO),
ENVG = 5 V, IMXO/QMXO load = 1.5 kΩ
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
F
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,
VGIN = 1.2 V (minimum gain)
−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)
Measured at IFIP, IFIN
Measured at IMXO/QMXO (LO = 50 MHz)
Small signal 3 dB bandwidth
LO = 380 MHz (LOIP/LOIN 760 MHz)
vs. temperature
vs. baseband frequency (dc to 30 MHz)
vs. temperature
vs. baseband frequency (dc to 30 MHz)
Maximum gain, from 200 Ω source,
F
Shunt from IMXO, QMXO to VCMO
Shunt from IMXO, QMXO to VCMO
LO
IF
IF
IF
= 380 MHz ± 5% (VGIN = 1.2 V)
= 900 MHz ± 5% (VGIN = 1.2 V)
= 380 MHz
= −10 dBm, R
Rev. A | Page 3 of 28
S
(LO) = 50 Ω, R
S
(IFIP and MXIP/MXIN) = 200 Ω, unless
Min
50
−12
2.7
−40
−0.7
−0.3
100
0
200
Typ
75
−10
200||1.1
44
25.5
−18.5
500
±0.5
0.1
1.3
−22
+13
65
18
28
−8
−80
−60
75
±0.1
−0.0032
+0.01
±0.05
0
±0.0125
10.75
40
1.5
2.5
Max
2000
1000
0
5.5
+85
+0.7
+0.3
10
AD8348
Unit
MHz
MHz
MHz
dBm
V
°C
Ω||pF
dB
dB
dB
MHz
dB
dB p-p
dB p-p
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
MHz
Degrees
°/°C
°/MHz
dB
dB/°C
dB
dB
Ω
pF
kΩ
mA