AD8347_15 Datasheet, PDF (3/28 Pages) Analog Devices – 0.8 GHz to 2.7 GHz Direct Conversion Quadrature Demodulator

AD8347
SPECIFICATIONS
VS = 5 V; TA = 25°C; FLO = 1.9 GHz; VVCMO = 1 V; FRF = 1.905 GHz; PLO = −8 dBm, RLOAD = 10 kΩ, dBm with respect to 50 Ω, unless
otherwise noted.
Table 1.
Parameter
Conditions
Min
Typ Max Unit
OPERATING CONDITIONS
LO/RF Frequency Range
0.8
2.7 GHz
LO Input Level
−10
0
dBm
VGIN Input Level
VSUPPLY (VS)
Temperature Range
0.2
1.2 V
2.7
5.5 V
−40
+85 °C
RF AMPLIFIER/DEMODULATOR
AGC Gain Range
Conversion Gain (Max)
Conversion Gain (Min)
Gain Linearity
Gain Flatness
Input P1 dB
Third-Order Input Intercept (IIP3)
Second-Order Input Intercept (IIP2)
LO Leakage (RF)
From RFIP/RFIN to IMXO and QMXO (IMXO/QMXO load > 1 kΩ)
VVGIN = 0.2 V (max gain)
VVGIN = 1.2 V (min gain)
VVGIN = 0.3 V to 1 V
FLO = 0.8 GHz to 2.7 GHz, FBB = 1 MHz
VVGIN = 0.2 V
VVGIN = 1.2 V
FRF1 = 1.905 GHz,
FRF2 = 1.906 GHz, –10 dBm each tone, (min gain)
FRF1 = 1.905 GHz,
FRF2 = 1.906 GHz, −10 dBm each tone, (min gain)
At RFIP
69.5
39.5
−30
±2
+0.7
−30
−2
+11.5
+25.5
−60
dB
dB
dB
dB
dB p-p
dBm
dBm
dBm
dBm
dBm
LO Leakage (MXO)
At IMXO/QMXO
−42
dBm
Demodulation Bandwidth
Quadrature Phase Error
I/Q Amplitude Imbalance
Noise Figure
Mixer AGC Output Level
Baseband DC Offset
Mixer Output Swing
−3 dB
FRF = 1.9 GHz
FRF = 1.9 GHz
Max Gain
See Figure 34
At IMXO/QMXO, max gain (corrected, REF to VREF)
Level at which IMD3 = 45 dBc
+90
MHz
−3
±1 +3 degree
+0.3
dB
11
dB
24
mV p-p
2
mV
Mixer Output Impedance
RLOAD = 200 Ω
RLOAD = 1 kΩ
65
mV p-p
65
mV p-p
3
Ω
BASEBAND OUTPUT AMPLIFIER
Gain
Bandwidth
Output DC Offset (Differential)
Common-Mode Offset
Group Delay Flatness
From IAIN to IOPP/IOPN and QAIN to QOPP/QOPN
RLOAD = 10 kΩ
−3 dB (see Figure 22)
(VIOPP – VIOPN)
(VIOPP + VIOPN)/2 − VVCMO
0 MHz to 50 MHz
−200
−40
30
dB
65
MHz
±50 +200 mV
±5 +40 mV
+1.8
ns p-p
Second-Order Intermod. Distortion
Third-Order Intermod. Distortion
Input Bias Current
Input Impedance
Output Swing Limit (Upper)
Output Swing Limit (Lower)
FIN1 = 5 MHz, FIN2 = 6 MHz, VIN1 = VIN2 = 8 mV p-p
FIN1 = 5 MHz, FIN2 = 6 MHz, VIN1 = VIN2 = 8 mV p-p
−49
−67
+2
1||3
VS − 1.3
0.4
dBc
dBc
μA
MΩ||pF
V
V
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