LT5528 LINER [Linear Technology], LT5528 Datasheet - Page 6

• Manufacturer Part Number: LT5528
• Description: 1.5GHz to 2.4GHz High Linearity Direct Quadrature Modulator
• Manufacturer: LINER [Linear Technology]

LT5528
TYPICAL PERFOR A CE CHARACTERISTICS
= 0dBm. BBPI, BBMI, BBPQ, BBMQ inputs 0.525V
sideband selection). P
6
–10
–12
–14
–16
–18
–20
–4
–6
–8
–20
Gain vs LO Power
–16
–12
LO POWER (dBm)
–8
RF, OUT
–10
–20
–30
–40
–50
–60
–70
–4
0
RF Output Power, HD2 and HD3
at 2140MHz vs Baseband Voltage
and Supply Voltage
f
f
HD2 = MAX POWER AT f
HD3 = MAX POWER AT f
BBI
BBQ
= –10dBm (–10dBm/tone for 2-tone measurements), unless otherwise noted. (Note 3)
I AND Q BASEBAND VOLTAGE (V
0
= 2MHz, 0°
= 2MHz, 90°
W
1
4.5V, 25°C
5.5V, 25°C
5V, –40°C
4
5V, 25°C
5V, 85°C
RF
5528 G13
U
8
2
LO
LO
HD3
3
+ 2 • f
+ 3 • f
22
20
18
16
14
12
10
DC
8
6
4
2
0
–20
Output IP3 vs LO Power
f
f
BB
BB
, Baseband Input Frequency f
BB, 1
BB, 2
HD2
4
P-P, DIFF
OR f
OR f
–16
= 2MHz
= 2.1MHz
LO
LO
5528 G16
4.5V
5.5V
5V
)
– 2 • f
– 3 • f
–12
5
LO POWER (dBm)
10
0
–10
–20
–30
–40
–50
BB
BB
–8
–4
0
4.5V, 25°C
5.5V, 25°C
–25
–30
–35
–40
–45
–50
5V, –40°C
4
5V, 25°C
5V, 85°C
0
BB
LO Feed-Through and Image
Rejection at 2140MHz vs Baseband
Voltage and Temperature
f
f
5528 G14
BBI
BBQ
8
I AND Q BASEBAND VOLTAGE (V
V
= 2MHz, I&Q 90° shifted. f
= 2MHz, 0°
= 2MHz, 90°
CC
–40°C
1
25°C
85°C
= 5V, EN = High, T
–10
–20
–30
–40
–50
–60
–70
2
0
RF Output Power, HD2 and HD3
at 2140MHz vs Baseband Voltage
and Temperature
f
f
HD2 = MAX POWER AT f
HD3 = MAX POWER AT f
BBI
BBQ
I AND Q BASEBAND VOLTAGE (V
= 2MHz, 0°
= 2MHz, 90°
LOFT
3
1
RF
A
4
P-P, DIFF
= 25°C, f
2
IR
RF
5528 G17
LO
LO
)
= f
5
HD3
3
+ 2 • f
+ 3 • f
BB
LO
+ f
= 2.14GHz, P
BB
BB
HD2
4
P-P, DIFF
LO
OR f
OR f
(upper
–40°C
LO
LO
25°C
85°C
5528 G15
)
– 2 • f
– 3 • f
5
10
0
–10
–20
–30
–40
–50
BB
BB
5528f
LO