lt5560 Linear Technology Corporation, lt5560 Datasheet - Page 9

• Manufacturer Part Number: lt5560
• Description: 0.01mhz To 4ghz Low Power Active Mixer
• Manufacturer: Linear Technology Corporation

V
f
TYPICAL AC PERFOR A CE CHARACTERISTICS
LO
CC
= 1760MHz, P
= 3V, I
CC
= 10mA, EN = 3V, T
LO
= –2dBm, output measured at 140MHz, unless otherwise noted. (Test circuit shown in Figure 2)
–70
–90
–10
–30
–50
17
15
13
11
10
12
10
–20
9
7
8
6
4
2
0
1700
– 10
Conversion Gain, IIP3 and SSB NF
vs RF Input Frequency
SSB Noise Figure
vs LO Input Power
IF
RF Input Power (Single Input Tone)
f
GAIN
RF
OUT
f
RF
2RF – 2LO
= 1830MHz
1750
3RF – 3LO
= 1806.7MHz
– 8
–40°C
–40°C
, 2 × 2 and 3 × 3 Spurs vs
f
25°C
85°C
25°C
85°C
RF
–15
A
INPUT FREQUENCY (MHz)
RF INPUT POWER (dBm)
LO INPUT POWER (dBm)
= 1900MHz
= 25°C, f
IF
1800
– 6
OUT
W
1850
–10
– 4
SSB NF
IN
IIP3
U
= 1900MHz, P
1900
– 2
T
f
f
LO
IF
A
= 140MHz
= 25°C
–5
= 1760MHz
1950
0
5560 G42
5560 G40
5560 G38
2000
2
0
IN
= –20dBm (–20dBm/tone for 2-tone IIP3 tests, Δf = 1MHz),
–100
–10
–20
–30
–40
–50
–40
–50
–60
–70
–80
–90
10
–2
0
8
6
4
2
0
1560
–10
–10
Conversion Gain and IIP3
vs LO Input Power
LO-IN and LO-OUT Leakage
vs LO Frequency
2 × 2 and 3 × 3 Spurs vs
LO Input Power (Single Input Tone)
T
f
f
LO
IF
A
= 25°C
= 140MHz
= 1760MHz
1610
–8
–8
–40°C
25°C
85°C
LO INPUT POWER (dBm)
LO INPUT POWER (dBm)
LO FREQUENCY (MHz)
1660
–6
–6
f
f
RF
1900MHz Downconverting Mixer Application:
RF
LO-OUT
LO-IN
2RF – 2LO
3RF – 3LO
GAIN
1710
= 1806.7MHz
IIP3
= 1830MHz
–4
–4
1760
–2
–2
1810 1860
0
0
5560 G39
5560 G43
5560 G41
2
2
8
6
4
2
0
–2
– 4
LT5560
9
5560f