LT5568-2EUF-PBF LINER [Linear Technology], LT5568-2EUF-PBF Datasheet - Page 5

• Manufacturer Part Number: LT5568-2EUF-PBF
• Description: GSM/EDGE Optimized, High Linearity Direct Quadrature Modulator
• Manufacturer: LINER [Linear Technology]

TYPICAL PERFOR A CE CHARACTERISTICS
P
sideband selection). P
LO
–160
–161
–158
–159
–163
–163
–40
–44
–46
– 48
–50
–42
–38
23
19
17
15
13
25
21
–20 –16 –12
–20 –16 –12
= 0dBm. BBPI, BBMI, BBPQ, BBMQ inputs 0.54V
550
Output IP3 vs LO Power
LO Feedthrough to RF Output
vs LO Input Power
Noise Floor vs RF Frequency
f
f
BB, 1
BB, 2
650 750 850 950
= 2MHz
= 2.1MHz
LO INPUT POWER (dBm)
LO INPUT POWER (dBm)
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
RF FREQUENCY (MHz)
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
–8
–8
RF, OUT
–4
–4
1050 1150 1250
0
0
f
(FIXED)
NO RF
= –10dBm (–10dBm/tone for 2-tone measurements), unless otherwise noted. (Note 3)
LO
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
W
= 900MHz
4
4
55682 G10
55682 G13
55682 G16
8
8
U
–40
–45
–50
–55
HD2 = MAX POWER AT f
HD3 = MAX POWER AT f
–35
–40
–50
–60
–70
–10
–20
–30
–80
–35
–40
–45
–50
–55
–30
550
–20
RF CW Output Power, HD2 and
HD3 vs CW Baseband Voltage
and Temperature
0
Image Rejection vs LO Frequency
Image Rejection vs LO Input Power
–40°C
f
BB
I AND Q BASEBAND VOLTAGE (V
85°C
650 750 850 950
–16 –12
= 100kHz
DC
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
1
, Baseband Input Frequency f
LO INPUT POWER (dBm)
HD3
LO FREQUENCY (MHz)
25°C
–40°C
RF
2
–8
85°C
LO
LO
+ 2 • f
+ 3 • f
–4
HD2
3
85°C
BB
BB
1050 1150 1250
OR f
OR f
0
P
f
BB
RF
4
P–P, DIFF
LO
LO
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
= 100kHz
25°C
= –10dBm
25°C
4
– 2 • f
– 3 • f
–40°C
55682 G11
55682 G14
)
5
8
BB
BB
10
–10
–20
–30
–40
–50
–60
0
V
55682 G17
BB
CC
= 2MHz, I&Q 90° shifted. f
= 5V, EN = High, T
HD2 = MAX POWER AT f
HD3 = MAX POWER AT f
–10
–20
–30
–40
–10
–12
–14
–16
–20
–30
–40
–50
–60
–70
–80
–10
–4
–6
–8
–20 –16 –12
0
550
0
LO and RF Port Return Loss
vs RF Frequency
Voltage Gain vs LO Power
RF CW Output Power, HD2 and
HD3 vs CW Baseband Voltage
and Supply Voltage
LO PORT,
EN = HIGH,
P
LO PORT, EN = LOW
LO
I AND Q BASEBAND VOLTAGE (V
650 750 850 950
= 10dBm
1
LO INPUT POWER (dBm)
RF FREQUENCY (MHz)
LO PORT, EN = HIGH,
P
A
LO
= 25°C, f
–8
HD2
HD3
= 0dBm
RF PORT, EN = HIGH, No LO
2
RF
LO
LO
+ 2 • f
+ 3 • f
–4
RF
RF PORT,
EN = HIGH,
P
LO
LT5568-2
3
= f
LO
BB
BB
5V
= 0dBm
1050 1150 1250
RF PORT,
EN = LOW
5V
OR f
OR f
0
BB
= 900MHz,
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
4
+ f
P–P, DIFF
LO
LO
4
– 2 • f
– 3 • f
LO
4.5V
55682 G15
4.5V
5.5V
55682 G12
(upper
8
5
)
BB
BB
55682f
–20
–30
–40
–50
–10
–60
5
55682 G18
0
10