LTC5588-1
TYPICAL PERFORMANCE CHARACTERISTICS VCC = 3.3V, EN = 3.3V, TA = 25°C, LOP input
AC-terminated with 50Ω to ground, BBPI, BBMI, BBPQ, BBMQ inputs 0.5VDC, and 1VP-P(DIFF), baseband input frequencies = 4.5MHz
and 5.5MHz for OIP3 and OIP2, or else baseband input frequency = 100kHz, I and Q 90° shifted, lower sideband selection, LINOPT pin
floating, unless otherwise noted. Test circuit is shown in Figure 8.
Output IM2 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 900MHz,
fIM2 = 910MHz)
Output IM3 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 2140MHz,
Note 6)
Output IM2 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 2140MHz,
fIM2 = 2130MHz)
–20
–30
–20
–30
–20
–30
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
–40
–50
–60
–70
–80
–90
–40
–50
–60
–70
–80
–90
–40
–50
–60
–70
–80
–90
–5
0
10
–5
0
10
–10
–5
0
10
–10
5
–10
5
–15
5
55881 G72
RF POWER PER TONE (dBm)
RF POWER PER TONE (dBm) 55881 G71
RF POWER PER TONE (dBm)
55881 G70
Output IM3 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 2140MHz,
fIM3 = 2154.5MHz)
Output IM2 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 2140MHz,
fIM2 = 2150MHz)
Supply Current vs LINOPT Voltage
320
310
300
290
280
–20
–30
–20
–30
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
–40
–50
–60
–70
–80
–90
–40
–50
–60
–70
–80
–90
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
3.0
3.5
–5
0
10
2.0
–10
5
2.5
–10
–5
0
10
–15
5
55881 G75
LINOPT VOLTAGE (V)
RF POWER PER TONE (dBm) 55881 G73
RF POWER PER TONE (dBm) 55881 G74
OutputIP2vsRFFrequencyforHigh
SideLOInjection(fBB1 =140MHz,
fBB2 =141MHz,PLOM =0dBm
LINOPT Current vs LINOPT Voltage
10
5
90
80
70
60
50
40
30
f
f
= f + f
IM2 RF BB2
LO RF BB1
= f – f
0
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
–5
3.0
2.5
LINOPT VOLTAGE (V)
3.5
55881 G76
0
2
1
3
4
5
6
2.0
RF FREQUENCY (GHz)
55881 G77
55881fb
14
Linear [ Linear ]
