ltc5505-2 Linear Technology Corporation, ltc5505-2 Datasheet - Page 5

• Manufacturer Part Number: ltc5505-2
• Description: Rf Power Detector With Buffered Output And >40db Dynamic Range
• Manufacturer: Linear Technology Corporation

BLOCK DIAGRA
PI FU CTIO S
RF
external coupling capacitor to the RF source is required.
The frequency range is 300MHz to 3GHz. This pin has an
internal 250
detector and peak detector capacitor. (See Note 6 in the
Electrical Characteristics.)
GND (Pin 2): System Ground.
U
IN
(Pin 1): RF Input Voltage. Referenced to V
U
RF
GND 2
IN
termination, an internal Schottky diode
1
U
60 A
W
250
28pF
60 A
COMPRESSION
150k
GAIN
V
+
–
5
CC
RF DET
SHDN
SHDN
CC
3
. An
SHDN (Pin 3): Shutdown Input. A logic low on the SHDN
pin places the part in shutdown mode. A logic high enables
the part. SHDN has an internal 150k pull down resistor to
ensure that the part is in shutdown when the drivers are in
a tri-state condition.
V
Voltage.
V
be bypassed appropriately with ceramic capacitors.
130mV
22k
OUT
CC
(Pin 5): Power Supply Voltage, 2.7V to 6V. V
(Pin 4): Buffered and Level Shifted Detector Output
30k
LTC5505-1/LTC5505-2
+
–
BUFFER
30k
BIAS
100
100
4
5505 BD
V
OUT
CC
should
5
5505f