lt5503 Linear Technology Corporation, lt5503 Datasheet - Page 9

• Manufacturer Part Number: lt5503
• Description: 1.2ghz To 2.7ghz Direct Iq Modulator And Mixer
• Manufacturer: Linear Technology Corporation

V
TYPICAL PERFOR A CE CHARACTERISTICS
–12
–14
–16
–18
–20
–22
–12
–14
–16
–18
–20
–22
CC2
2250
1650
RF Output Power and LO1
Feedthrough 1.9GHz Matching
RF Output Power and LO1
Feedthrough 2.4GHz Matching
= 3VDC, MIXEN = high, DMODE = low (LO2 2mode), T
LO2IN = 480MHz AT –18dBm
LO1IN = f
OUTPUT
POWER
1750
RF OUTPUT FREQUENCY (MHz)
RF OUTPUT FREQUENCY (MHz)
2350
RF
LO1IN = f
OUTPUT
POWER
–240MHz AT –12dBm
LO1
FEEDTHROUGH
1850
LO2IN = 750MHz AT –18dBm
2450
RF
–375MHz AT –12dBm
1950
LO1
FEEDTHROUGH
2550
2050
W
5503 G35
5503 G38
2150
2650
U
0
–10
–20
–30
–40
–50
0
–10
–20
–30
–40
–50
300
270
240
210
180
150
120
–2
–4
–2
–4
90
60
30
6
4
2
0
6
4
2
0
1650
2250
1.8
Small-Signal Conversion Gain
and IIP3 1.9GHz Matching
Small-Signal Conversion Gain
and IIP3 2.4GHz Matching
MIXEN Input Current vs Enable
Voltage (MIXEN = V
LO2IN = 480MHz AT –18dBm
LO1IN = f
LO2IN = 750MHz AT –18dBm
LO1IN = f
1750
RF OUTPUT FREQUENCY (MHz)
RF OUTPUT FREQUENCY (MHz)
2.5
2350
SMALL-SIGNAL
CONVERSION
GAIN
RF
RF
A
IIP3
MIXEN VOLTAGE (V)
SMALL-SIGNAL
CONVERSION
GAIN
= 27 C, unless otherwise noted. (Test circuit shown in Figure 2.)
–240MHz AT –30dBm/TONE
–375MHz AT –30dBm/TONE
1850
3.2
IIP3
2450
1950
CC2
T
3.9
A
T
= 85 C
A
)
2550
= 27 C
T
A
2050
= –40 C
4.6
5503 G41
5503 G36
5503 G39
(Mixer)
2150
2650
5.3
–3
–6
–9
–12
–15
–18
–3
–6
–9
–12
–15
–18
–10
–15
–20
–25
–30
–10
–15
–20
–25
–30
–5
–5
0
0
1100
1450
LO1IN and MIXRFOUT Return Loss
1.9GHz Matching
LO1 and MIXRFOUT Return Loss
2.4GHz Matching
1300 1500
1650 1850
FREQUENCY (MHz)
FREQUENCY (MHz)
LO1IN
1700
LO1
2050
1900
2250
MIXRFOUT
LT5503
MIXRFOUT
2100
2450
2300 2500
2650 2850
5503 G37
5503 G40
9