ad8348-eval Analog Devices, Inc., ad8348-eval Datasheet - Page 17

• Manufacturer Part Number: ad8348-eval
• Description: 50 Mhz To 1000 Mhz Quadrature Demodulator
• Manufacturer: Analog Devices, Inc.

Figure 43. Input Impedance of Mixer Input vs. F
300
280
260
240
220
200
180
160
140
120
100
180
150
210
Figure 45. Return Loss of LOIP Input vs. External LO Frequency
–10
–15
–20
–25
–30
–35
–5
Figure 44. S11 of Mixer Input vs. F
0
VGIN = 0.7 V, V
120
240
RETURN LOSS LOIP PIN SINGLE-ENDED,
LOIN AC-COUPLED TO GROUND.
(SHUNT CAPACITANCE)
EXTERNAL LO FREQUENCY (MHz)
(SHUNT RESISTANCE)
MX INPUTS WITH 4:1 BALUN
IF FREQUENCY (MHz)
POS
= 5 V (With and Without Balun)
IMPEDANCE CIRCLE
90
MXIP INPUT PIN
270
IF
, F
IF
= 50 MHz to 1 GHz,
IF
, VGIN = 0.7 V, V
60
300
30
330
2.5
2.0
1.5
1.0
0.5
0
POS
0
= 5 V
Rev. A | Page 17 of 28
–10
–15
–20
–25
–30
–35
Figure 46. Return Loss of LO Input vs. External LO Frequency
–5
65
60
55
50
45
40
35
0
–40
–30
Through Balun, with Termination Resistor
Figure 47. Supply Current vs. Temperature
–20 –10
FREQUENCY APPLIED TO LOIP/LOIN (MHz)
V
S
RETURN LOSS LO INPUT, THROUGH BALUN
WITH
= 5V
0
TEMPERATURE (°C)
60.4Ω
10
IN SHUNT BETWEEN LOIP/LOIN
20
30
V
40
S
= 2.7V
50
60
70
AD8348
80