DC to 6 GHz, ≤45 dB Envelope Threshold
Detector/Trigger
Data Sheet
ADL5910
FEATURES
FUNCTIONAL BLOCK DIAGRAM
VPOS
VIN–
16
RST
15
ENBL
14
Envelope threshold detection and latching
Broad input frequency range: dc to 6 GHz
1.0 dB input range: ≤45 dB
1.0 dB input level: −30 dBm to +15 dBm at 100 MHz
Programmable threshold and latch reset function
Propagation delay: 12 ns typical from RFIN to Q/Q latch
All functions temperature and supply stable
Operates at 3.3 V from −40°C to +105°C
Quiescent current: 3.5 mA typical
5
7
ADL5910
4
1
DECL
RFIN
R
S
Q
Q
12
13
Q
Q
–
+
ENVELOPE
DETECTOR
11
3
2
6
8
9
10
GND
VCAL
DNC
Power-down current: 100 μA typical
16-lead, 3 mm × 3 mm LFCSP package
Figure 1.
APPLICATIONS
Wireless power amplifier input and output protection
Wireless receiver input protection
RF pulse detection and triggering
GENERAL DESCRIPTION
The ADL59101 is a radio frequency (RF) detector that operates
from dc to 6 GHz. It provides a programmable envelope
threshold detection function.
programmed threshold to the output latching is 12 ns. The latched
event is held on the flip flop until a reset pulse is applied.
The RF input of the ADL5910 is dc-coupled, allowing operation
down to arbitrarily low ac frequencies. It operates on a 3.3 V
supply and consumes 3.5 mA. Power-down mode reduces this
current to 100 μA when a logic low is applied to the ENBL pin.
The envelope threshold detection function compares the voltage
from an internal envelope detector with a user defined input
voltage. When the voltage from the envelope detector exceeds
the user defined threshold voltage, an internal comparator
captures and latches the event to a set or reset (SR) flip flop.
The response time from the RF input signal exceeding the user
The ADL5910 is supplied in a 3 mm × 3 mm, 16-lead LFCSP for
operation over the wide temperature range of −40°C to +105°C.
1 Protected by U.S. Patent 9,379,675.
Rev. 0
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