SL2524
1.3GHz Dual Wideband Logarithmic Amplifier
DS4548 - 2.1 July 1995
The SL2524 is a pin compatible replacement for the
SL2521 and SL2522 series of log amplifiers, and exhibits a
superior stability performance. The amplifier is a successive
detection type which provides linear gain and accurate loga-
rithmic signal compression over a wide bandwidth. The two
stages can be operated independently.
When six stages (three SL2524s) are cascaded the strip
can be used for IFs between 30-650MHz whilst achieving
greater than 65dB dynamic range with a log accuracy of
<±1.0dB. The balanced limited output also offers accurate
phase information with input amplitude.
FEATURES
s
s
s
s
s
s
1.3GHz Bandwidth (-3dB)
Balanced IF limiting
3ns Rise Times/5ns Fall Times (six stages)
20ns Pulse Handling (six stages)
Temperature Stabilised
Surface Mountable
APPLICATIONS
s
s
s
Ultra Wideband Log Receivers
Channelised Receivers
Monopulse Applications
OPTIONAL PIN
REFERENCE
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
above V
EE
)
+7.0V
Storage temperature
-65°C to +150°C
Operating temperature range
SL2524/B/LC
-40°C to +85°C
SL2524/C/HP
-30°C to +85°C
Junction temperature - LC20
+175°C
- HP20
+150°C
Applied DC voltage to RF input
±0.4V
(between RF I/P
pins)
Applied RF power to RF input
+15dBm
NOT less than 180Ω
Value of R
SET
resistors
Thermal resistance:-
Die to case
-LC 20
28°C/W
- HP20
20°C/W
Die to ambient - LC20
73°C/W
- HP20
82°C/W
PIN
1
2
3
4
5
6
7
8
9
10
DESCRIPTION
SUB V
EE
IF OUTPUT (A)
IF OUTPUT (A)
V
EE
(A)
OUTPUT V
C
(A)
IF INPUT (A)
IF INPUT (A)
V
CC
(A)
DET. OUTPUT (A)
R SET (A)
PIN
11
12
13
14
15
16
17
18
19
20
DESCRIPTION
N/C
R SET (B)
DET. OUTPUT (B)
V
CC
(B)
IF OUTPUT (B)
IF OUTPUT (B)
OUTPUT V
CC
(B)
V
EE
(B)
IF INPUT (B)
IF INPUT (B)
ORDERING INFORMATION
SL2524/B/LC (Ceramic leadless chip carrier package)
SL2524/C/HP (Plastic J lead chip carrier package)
SL2524/NA/1C (DC probe tested bare die)
5962 - 92315 (SMD)
Fig.1 Pin connections top view
MITEL [ MITEL NETWORKS CORPORATION ]
