LTC5564
8
5564fc
For more information www.linear.com/LTC5564
PIN FUNCTIONS
RFIN (Pin 1): RF Input Voltage. A coupling capacitor must
be used to connect to the RF signal source. This pin has
an internal 250Ω termination, an internal Schottky diode
detector and an internal 8pF reservoir capacitor.
NC (Pins 2, 9, 16): No Connect. These pins should be left
unconnected by the user for best RF performance.
GND (Pins 3, 4, Exposed Pad Pin 17): These pins should
be tied to system ground. See Applications Information
for best practices.
LEN (Pin 5): Comparator Latch Enable Input. V
COMP
will be
latched when LEN is high and transparent when LEN is low.
V
OUTADJ
(Pin 6): Amplifier Output Offset Adjust. When left
floating, the V
OUT
pin of the amplifier will be at its nominal
quiescent output offset value. See the Applications Infor-
mation section for adjustment range.
G
0,
G1 (Pins 7, 8): Amplifier Gain Selection. Logic low or
high levels on the G0 and G1 pins will change the internal
amplifier gain, bandwidth and slew rate characteristics. See
the Applications Information section for gain setting codes.
V
OUT
(Pin 10): Detector Amplifier Output.
V
CCP
(Pin 11): High Current Power Supply Pin.
V
CCA
(Pin 12): Analog Power Supply Pin.
V
COMP
(Pin 13): Comparator Output.
V
REF
(Pin 14): Comparator Negative Input. Apply an ex-
ternal reference voltage to this pin.
V
CCRF
(Pin 15): RF Power Supply Pin.
