LTC5543
4
5543f
DC ELECTRICAL CHARACTERISTICS
V
CC
= 3.3V, V
CCIF
= 3.3V, SHDN = Low, T
A
= 25°C, unless otherwise
noted. Test circuit shown in Figure 1. (Note 2)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supply Requirements (V
CC
, V
CCIF
)
V
CC
Supply Voltage (Pins 6, 8 and 14) 3.1 3.3 3.5 V
V
CCIF
Supply Voltage (Pins 18 and 19) 3.1 3.3 5.3 V
V
CC
Supply Current (Pins 6 + 8 + 14)
V
CCIF
Supply Current (Pins 18 + 19)
Total Supply Current (V
CC
+ V
CCIF
)
99
102
201
116
122
238
mA
Total Supply Current – Shutdown SHDN = High 500 µA
Shutdown Logic Input (SHDN) Low = On, High = Off
SHDN Input High Voltage (Off) 3V
SHDN Input Low Voltage (On) 0.3 V
SHDN Input Current –0.3V to V
CC
+ 0.3V –20 30 µA
Turn On Time 1µs
Turn Off Time 1.5 µs
LO Select Logic Input (LOSEL) Low = LO1 Selected, High = LO2 Selected
LOSEL Input High Voltage 3V
LOSEL Input Low Voltage 0.3 V
LOSEL Input Current –0.3V to V
CC
+ 0.3V –20 30 µA
LO Switching Time 50 ns
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC5543 is guaranteed functional over the operating
temperature range from –40°C to 85°C.
Note 3: SSB Noise Figure measurements performed with a small-signal
noise source, bandpass fi lter and 6dB matching pad on RF input, bandpass
fi lter and 6dB matching pad on the LO input, and no other RF signals
applied.
Note 4: LO switch isolation is measured at the IF output port at the IF
frequency with f
LO1
and f
LO2
offset by 2MHz.
V
CC
Supply Current
vs Supply Voltage
(Mixer and LO Switch)
V
CCIF
Supply Current
vs Supply Voltage (IF Amplifi er)
Total Supply Current
vs Temperature (V
CC
+ V
CCIF
)
TYPICAL DC PERFORMANCE CHARACTERISTICS
SHDN = Low, Test circuit shown in Figure 1.
V
CC
SUPPLY VOLTAGE (V)
3.0
90
SUPPLY CURRENT(mA)
108
106
104
102
100
98
96
94
92
110
3.1 3.5 3.63.2 3.3
5543 G01
3.4
–40°C
85°C
25°C
V
CCIF
SUPPLY VOLTAGE (V)
3.0
75
SUPPLY CURRENT (mA)
115
105
95
85
125
3.3 5.1 5.43.6 3.9 4.2 4.5
5543 G02
4.8
85°C
25°C
–40°C
TEMPERATURE (°C)
–45
170
SUPPLY CURRENT(mA)
220
210
190
200
180
230
–25 75 95–5 15 35
5543 G03
55
V
CC
= 3.3V, V
CCIF
= 5V
(DUAL SUPPLY)
V
CC
= V
CCIF
= 3.3V
(SINGLE SUPPLY)