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 IP3 vs RF Frequency
(PLOM = 0dBm, fIM3 = fLO
14.5MHz)
+
Output IP2 vs RF Frequency
(PLOM = 0dBm, fIM2 = fLO + 10MHz)
Image Rejection vs LO Frequency
(PLOM = 15dBm)
–20
–30
–40
–50
40
30
20
10
90
80
70
60
50
40
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
–60
0
0
1
2
3
4
0
1
2
3
4
5
6
0
1
2
3
4
5
6
LO FREQUENCY (GHz)
55881 G62
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
55881 G64
55881 G63
Output IP2 vs RF Frequency
Output IM3 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 900MHz,
Note 6)
Output IP3 vs RF Frequency
(PLOM = 10dBm, fIM2 = fLO
10MHz)
+
(PLOM = 10dBm, fIM3 = fLO
14.5MHz)
+
–20
–30
40
30
20
10
90
80
70
60
50
40
30
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
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
0
–5
0
10
–10
5
0
1
2
3
4
5
6
0
1
2
3
4
5
6
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
55881 G66
55881 G65
RF POWER PER TONE (dBm) 55881 G67
Output IM2 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 900MHz,
fIM2 = 890MHz)
Output IM3 vs RF 2-Tone Power
(PLOM = 0dBm, fRF = 900MHz,
fIM3 = 914.5MHz)
–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
–5
0
10
–5
0
10
–10
5
–10
5
RF POWER PER TONE (dBm)
RF POWER PER TONE (dBm) 55881 G69
55881 G68
55881fb
13
Linear [ Linear ]
