LT5568 Просмотр технического описания (PDF) - Linear Technology
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LT5568 Datasheet PDF : 16 Pages
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LT5568
TYPICAL PERFOR A CE CHARACTERISTICS VCC = 5V, EN = High, TA = 25°C, fLO = 850MHz,
PLO = 0dBm. BBPI, BBMI, BBPQ, BBMQ inputs 0.54VDC, Baseband Input Frequency fBB = 2MHz, I&Q 90° shifted. fRF = fBB + fLO (upper
sideband selection). PRF, OUT = –10dBm (–10dBm/tone for 2-tone measurements), unless otherwise noted. (Note 3)
Supply Current vs Supply Voltage
140
RF Output Power vs LO Frequency
at 1VP-P Differential Baseband Drive
0
Voltage Gain vs LO Frequency
–4
130
120
110
100
4.5
85°C
25°C
–40°C
5
SUPPLY VOLTAGE (V)
5.5
5568 G01
Output IP3 vs LO Frequency
26
fBB, 1 = 2MHz
fBB, 2 = 2.1MHz
24
22
20
5V, –40°C
5V, 25°C
18
5V, 85°C
4.5V, 25°C
5.5V, 25°C
16
550 650 750 850 950 1050 1150 1250
LO FREQUENCY (MHz)
5568 G04
–2
–4
–6
5V, –40°C
5V, 25°C
–8
5V, 85°C
4.5V, 25°C
5.5V, 25°C
–10
550 650 750 850 950 1050 1150 1250
LO FREQUENCY (MHz)
5568 G02
Output IP2 vs LO Frequency
70
fIM2 = fBB, 1 + fBB, 2 + fLO
fBB, 1 = 2MHz
fBB, 2 = 2.1MHz
65
60
55
50
550
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
650 750 850 950 1050 1150 1250
LO FREQUENCY (MHz)
5568 G05
–6
–8
–10
5V, –40°C
5V, 25°C
–12
5V, 85°C
4.5V, 25°C
5.5V, 25°C
–14
550 650 750 850 950 1050 1150 1250
LO FREQUENCY (MHz)
5568 G03
Output 1dB Compression
vs LO Frequency
10
8
6
5V, –40°C
4
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
2
550 650 750 850 950 1050 1150 1250
LO FREQUENCY (MHz)
5568 G06
LO Feedthrough to RF Output
vs LO Frequency
–40
–42
–44
–46
–48
550
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
650 750 850 950 1050 1150 1250
LO FREQUENCY (MHz)
5568 G07
4
2 • LO Leakage to RF Output
vs 2 • LO Frequency
–40
5V, –40°C
5V, 25°C
5V, 85°C
–45
4.5V, 25°C
5.5V, 25°C
–50
–55
–60
1.1
1.3 1.5 1.7 1.9 2.1 2.3
2 • LO FREQUENCY (GHz)
2.5
5568 G08
3 • LO Leakage to RF Output
vs 3 • LO Frequency
–40
–45
–50
–55
5V, –40°C
–60
5V, 25°C
5V, 85°C
4.5V, 25°C
5.5V, 25°C
–65
1.65 1.95 2.25 2.55 2.85 3.15 3.45 3.75
3 • LO FREQUENCY (GHz)
5568 G09
5568f
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