AD8348 Ver la hoja de datos (PDF) - Analog Devices
Número de pieza
componentes Descripción
Fabricante
AD8348 Datasheet PDF : 28 Pages
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AD8348
Parameter
IF FRONT END WITHOUT VGA
Input Impedance
Conversion voltage Gain
3 dB Output Bandwidth
IF Gain Flatness
Input 1 dB Compression Point (P1dB)
Third-Order Input Intercept (IIP3)
LO Leakage
Demodulation Bandwidth
Quadrature Phase Error
I/Q Amplitude Imbalance
Noise Figure (Double Sideband)
I/Q BASEBAND AMPLIFIER
Gain
Bandwidth
Output DC Offset (Differential)
Output Common-Mode Offset
Group Delay Flatness
Input-Referred Noise Voltage
Output Swing Limit (Upper)
Output Swing Limit (Lower)
Peak Output Current
Input Impedance
Input Bias Current
RESPONSE FROM IF AND MX INPUTS TO
BASEBAND AMPLIFIER OUTPUT
Gain
CONTROL INPUT/OUTPUTS
VCMO Input Range
VREF Output Voltage
Gain Control Voltage Range
Gain Slope
Gain Intercept
Gain Control Input Bias Current
LO INPUTS
LOIP Input Return Loss
Conditions
Min
From MXIP, MXIN to IMXO (QMXO),
ENVG = 0 V, IMXO/QMXO load = 1.5 kΩ
Measured differentially across MXIP/MXIN
FIF = 380 MHZ ± 5%
FIF = 900 MHZ ± 5%
IF1 = 381 MHz, IF2 = 381.02 MHz
Each tone 10 dB below P1dB from
200 Ω source
Measured at MXIP/MXIN
Measured at IMXO, QMXO
Small signal 3 dB bandwidth
LO = 380 MHz (LOIP/LOIN 760 MHz,
−2
single-ended)
From 200 Ω source, FIF = 380 MHz
From IAIN to IOPP/IOPN and QAIN to QOPP/
QOPN, RLOAD = 2 kΩ, single-ended to ground
10 pF differential load
LO leakage offset corrected using 500 pF
capacitor on IOFS, QOFS (VIOPP − VIOPN)
(VIOPP + VIOPN)/2 − VCMO
0 MHz to 50 MHz
Frequency = 1 MHz
−50
−75
VS −1
IMXO and QMXO connected directly to
IAIN and QAIN, respectively
From MXIP/MXIN
From IFIP/IFIN, VGIN = 0.2 V
From IFIP/IFIN, VGIN = 1.2 V
VS = 5 V
0.5
VS = 2.7 V
0.5
0.95
VGIN
0.2
−55
Linear extrapolation back to theoretical
55
gain at VGIN = 0 V
LOIN ac-coupled to ground
(760 MHz applied to LOIP)
Typ
Max Unit
200||1.5
10.5
75
0.1
0.15
−4
14
Ω||pF
dB
MHz
dB p-p
dB p-p
dBm
dBm
−70
dBm
−60
dBm
75
MHz
±0.5
+2 Degrees
0.25
dB
21
dB
20
125
±12
±35
3
8
1
50||1
2
dB
MHz
+50 mV
+75 mV
ns p-p
nV/√Hz
V
0.5 V
mA
kΩ||pF
μA
30.5
dB
45.5
dB
1.5
dB
1
4
V
1
1.7 V
1
1.05 V
1.2 V
−50
−45 dB/V
61
67 dB
1
μA
−6
dB
Rev. A | Page 4 of 28
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