lt5558 Linear Technology Corporation, lt5558 Datasheet - Page 4

• Manufacturer Part Number: lt5558
• Description: 600mhz To 1100mhz High Linearity Direct Quadrature Modulator
• Manufacturer: Linear Technology Corporation

LT5558
TYPICAL PERFORMANCE CHARACTERISTICS
f
shifted, without image or LO feedthrough nulling. f
2-tone measurements), unless otherwise noted. (Note 3)
4
RF
= 902MHz, P
130
110
100
120
–40
–44
–42
–46
–48
90
12
26
24
22
20
18
16
14
550
550
4.5
Supply Current vs Supply Voltage
Output IP3 vs LO Frequency
LO Feedthrough to RF Output vs
LO Frequency
650 750 850
650 750 850
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
LO
SUPPLY VOLTAGE (V)
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
4.75
= 0dBm. BBPI, BBMI, BBPQ, BBMQ CM input voltage = 2.1V
–40°C
85°C
25°C
950
950
1050
1050
f
f
5
BB
BB
, 1 = 2MHz
, 2 = 2.1MHz
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
1150 1250
1150 1250
5558 G01
5558 G04
5558 G07
5.25
–12
–60
–40
–45
–50
–10
–55
45
–2
–4
–6
–8
75
70
65
60
55
50
RF
2
0
550
550
1.1
RF Output Power vs LO Frequency
at 1V
Baseband Drive
Output IP2 vs LO Frequency
2 • LO Leakage to RF Output vs
2 • LO Frequency
= f
f
f
f
IM2
BB
BB
BB
,
,
650 750 850
650 750 850
1.3
1
2
= f
= 2MHz
= 2.1MHz
P-P
+ f
BB
,
2 • LO FREQUENCY (GHz)
1.5
LO
1
Differential
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
+ f
(upper side-band selection). P
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
BB
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
1.7
,
2
+ f
950
950
LO
1.9
1050
1050
2.1
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
DC
1150 1250
1150 1250
2.3
, baseband input frequency = 2MHz, I and Q 90°
V
CC
5558 G02
5558 G05
5558 G08
2.5
= 5V, EN = High, T
RF(OUT)
–16
–70
–10
–12
–50
–55
–60
–14
–45
–65
–2
–4
–8
10
–6
–2
6
4
2
8
0
1.65
550
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
1.95 2.25 2.55
650 750 850
650 750 850
A
= 25°C, f
3 • LO FREQUENCY (GHz)
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
LO FREQUENCY (MHz)
LO FREQUENCY (MHz)
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
LO
2.85
950
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
5558 G06
5558 G09
5558fa