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 LINOPT Voltage
(fLO = 1900MHz, PLOM = 0dBm)
Output IP3 vs LINOPT Voltage
(fLO = 2140MHz, PLOM = 0dBm)
Output IP3 vs LINOPT Voltage
(fLO = 2600MHz, PLOM = 0dBm)
40
30
20
10
40
30
20
10
40
30
20
10
5 PARTS SHOWN
5 PARTS SHOWN
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, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
3.3V, –40°C
5 PARTS SHOWN
3.0 3.5
2.0
2.5
3.0
3.5
2.0
2.5
2.0
2.5
3.0
3.5
LINOPT VOLTAGE (V)
55881 G20
55881 G19
LINOPT VOLTAGE (V)
LINOPT VOLTAGE (V)
55881 G21
Output IP3 vs RF Frequency for High
Side LO Injection (fBB1 = 140MHz,
fBB2 = 141MHz, PLOM = 0dBm)
Output IP3 vs RF Frequency for High
Side LO Injection (fBB1 = 140MHz,
fBB2 = 141MHz, PLOM = 10dBm)
Output IP3 vs LINOPT Voltage
(fLO = 3500MHz, PLOM = 0dBm)
40
30
20
10
40
30
20
10
40
30
20
10
3.3V, 85°C
3.3V, 25°C
3.15V, 25°C
3.45V, 25°C
3.3V, –40°C
f = f + f
LO RF BB1
5 PARTS SHOWN
f
= f + f
LO RF BB1
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
0
2.0
2.5
3.0
3.5
0
1
2
3
4
5
6
0
1
2
3
4
5
6
55881 G22
LINOPT VOLTAGE (V)
RF FREQUENCY (GHz)
55881 G24
RF FREQUENCY (GHz)
55881 G23
Output IP3 vs LINOPT Voltage
(fRF1 = 449MHz, fRF2 = 450MHz,
PLOM = 0dBm)
Output IP3 vs LINOPT Voltage
Output IP3 vs LINOPT Voltage
(fRF1 = 899MHz, fRF2 = 900MHz,
PLOM = 0dBm)
(fRF1 = 1899MHz, fRF2 = 1900MHz,
PLOM = 0dBm)
40
30
20
10
40
30
20
10
40
30
20
10
f = 2040MHz
LO
5 PARTS SHOWN
f
= 590MHz
f
= 1040MHz
LO
LO
5 PARTS SHOWN
5 PARTS SHOWN
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
2.0
2.5
3.0
3.5
2.0
2.5
3.0
3.5
2.0
2.5
3.0
3.5
LINOPT VOLTAGE (V)
55881 G27
55881 G26
55881 G25
LINOPT VOLTAGE (V)
LINOPT VOLTAGE (V)
55881fb
8
Linear [ Linear ]
