lt5571 Linear Technology Corporation, lt5571 Datasheet - Page 4

• Manufacturer Part Number: lt5571
• Description: 620mhz - 1100mhz High Linearity Direct Quadrature Modulator
• Manufacturer: Linear Technology Corporation

LT5571
TYPICAL PERFORMANCE CHARACTERISTICS
f
shifted, without image or LO feedthrough nulling. f
tone measurements), unless otherwise noted. (Note 3)
4
RF
= 902MHz, P
110
100
–40
–42
–44
–46
–48
90
80
26
24
22
20
18
16
14
12
4.50
550
550
Supply Current vs Supply Voltage
Output IP3 vs LO Frequency
LO Feedthrough to RF Output vs
LO Frequency
650 750 850
650 750 850
LO
SUPPLY VOLTAGE (V)
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
4.75
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
= 0dBm. BBPI, BBMI, BBPQ, BBMQ CM input voltage = 0.5V
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
–40°C
950
950
85°C
25°C
1050
1050
5.00
f
f
BB, 1
BB, 2
1150 1250
1150 1250
= 2MHz
= 2.1MHz
5571 G01
5571 G04
5571 G07
5.25
–40
–45
–50
–55
–60
–10
–12
75
70
65
60
55
50
45
RF
–2
–4
–6
–8
2
0
550
550
1.1
RF Output Power vs LO Frequency
at 1V
Drive
Output IP2 vs LO Frequency
2 • LO Leakage to RF Output vs
2 • LO Frequency
= f
BB
650 750 850
650 750 850
1.3
P-P
+ f
2 • LO FREQUENCY (GHz)
1.5
LO
Differential Baseband
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
(upper sideband selection). P
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
1.7
f
f
f
IM2
BB
BB
950
950
1.9
,
,
1
2
= f
= 2MHz
= 2.1MHz
BB
1050
1050
2.1
,
1
+ f
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
DC
1150 1250
1150 1250
BB
2.3
, Baseband Input Frequency f
,
2
V
+ f
5571 G05
5571 G08
5571 G02
2.5
CC
LO
= 5V, EN = High, T
RF(OUT)
–10
–12
–14
–16
–45
–50
–55
–60
–65
–70
–2
–4
–6
–8
10
–2
6
8
4
2
0
550
1.65
550
Voltage Gain vs LO Frequency
Output 1dB Compression vs
LO Frequency
3 • LO Leakage to RF Output vs
3 • LO Frequency
= –10dBm (–10dBm/tone for 2-
650 750 850
1.95 2.25 2.55
650 750 850
A
= 25°C, f
3 • LO FREQUENCY (GHz)
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
BB
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
= 2MHz, I & Q 90°
LO
950
2.85
950
= 900MHz,
1050
1050
3.15
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
1150 1250
1150 1250
3.5 3.75
5558 G03
5571 G06
5571 G09
5571f