lt5572 Linear Technology Corporation, lt5572 Datasheet - Page 4

• Manufacturer Part Number: lt5572
• Description: 1.5ghz To 2.5ghz High Linearity Direct Quadrature Modulator
• Manufacturer: Linear Technology Corporation

LT5572
TYPICAL PERFOR A CE CHARACTERISTICS
P
LO feedthrough nulling. f
unless otherwise noted. (Note 3)
4
LO
140
120
110
100
–35
–40
–45
–50
–55
–60
130
= 0dBm. BBPI, BBMI, BBPQ, BBMQ inputs 0.5V
26
24
22
20
18
16
14
12
10
4.5
1.3
1.3
Supply Current vs Supply Voltage
Output IP3 vs LO Frequency
LO Feedthrough to RF Output
vs LO Frequency
1.5
1.5
1.7
1.7
SUPPLY VOLTAGE (V)
LO FREQUENCY (GHz)
LO FREQUENCY (GHz)
–40°C
85°C
25°C
1.9
1.9
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
5
RF
2.1
2.1
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
= f
BB
f
f
2.3
2.3
BB1
BB2
W
+ f
= 2MHz
= 2.1MHz
2.5
2.5
LO
5572 G01
5572 G04
5572 G07
(upper sideband selection). P
U
2.7
2.7
5.5
–20
–25
–30
–35
–40
–45
–50
–55
–60
50
–8
65
60
55
45
–2
–4
–6
DC
4
2
0
1.3
2.6
1.3
RF Output Power vs LO Frequency
at 1V
Drive
Output IP2 vs LO Frequency
2 • LO Leakage to RF Output
vs 2 • LO Frequency
, baseband input frequency f
1.5
1.5
3
P-P
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
2 • LO FREQUENCY (GHz)
Differential Baseband
3.4
1.7
1.7
LO FREQUENCY (GHz)
LO FREQUENCY (GHz)
1.9
1.9
3.8
RF(OUT)
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
f
f
f
IM2
BB1
BB2
2.1
4.2
2.1
= f
= 2MHz
= 2.1MHz
BB1
= –10dBm (–10dBm/tone for 2-tone measurements),
2.3
4.6
2.3
+ f
BB2
2.5
2.5
5
BB
V
5572 G02
+ f
5572 G05
5572 G08
CC
LO
= 2MHz, I and Q 90° shifted, without image or
2.7
5.4
2.7
= 5V, EN = High, T
–60
–12
–30
–35
–40
–45
–50
–55
–65
–70
–10
12
10
–2
–6
–8
–4
0
6
4
2
0
8
3.9
1.3
1.3
Voltage Gain vs LO Frequency
Output 1dB Compression
vs LO Frequency
3 • LO Leakage to RF Output
vs 3 • LO Frequency
1.5
1.5
4.5
A
3 • LO FREQUENCY (GHz)
= 25°C, f
1.7
5.1
1.7
LO FREQUENCY (GHz)
LO FREQUENCY (GHz)
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
1.9
1.9
5.7
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
LO
2.1
2.1
6.3
= 2.14GHz,
2.3
2.3
6.9
2.5
2.5
7.5
5572 G06
5572 G03
5572 G09
5572f
8.1
2.7
2.7