869 MHz to 1990 MHz
Quadrature Modulators
Data Sheet
ADL5590/ADL5591
Rev. A Document Feedback
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FEATURES
Operating frequencies
ADL5590: 869 MHz to 960 MHz
ADL5591: 1805 MHz to 1990 MHz
Output compression point P1dB: 16 dBm
Output third-order intercept point OIP3
ADL5590: 29 dBm at 900 MHz
ADL5591: 30 dBm at 1900 MHz
Noise floor: −157 dBm/Hz
Sideband suppression
ADL5590: <−50 dBc at 900 MHz
ADL5591: <−47 dBc at 1900 MHz
Baseband common-mode bias: 1.5 V
LO leakage
ADL5590: −50 dBc at 900 MHz, P
OUT
= 5 dBm
ADL5591: −44 dBc at 1900 MHz, P
OUT
= 5 dBm
Single supply: 4.75 V to 5.25 V
Package: 36-lead, 6 mm × 6 mm LFCSP
APPLICATIONS
Wireless infrastructure
Optimized for GSM transmitters
FUNCTIONAL BLOCK DIAGRAM
ADL5590/
ADL5591
24
25
26
23
22
21
1
2
3
9
20
27
19
GND
QBBN
QBBP
VOUT
GND
IBBN
IBBP
GND
GND
4
5
6
7
8
GND
GND
PS1
GND
LOIP
GND
LOIN
GND
GND
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
G
N
D
G
N
D
G
N
D
V
P
S
2
G
N
D
V
P
S
3
G
N
D
G
N
D
G
N
D
3
3
3
4
3
5
3
6
3
2
3
1
3
0
2
9
2
8
V
P
S
5
G
N
D
G
N
D
G
N
D
G
N
D
V
P
S
4
G
N
D
G
N
D
G
N
D
06661-001
QUADRATURE
PHASE
SPLITTER
Figure 1.
GENERAL DESCRIPTION
This family of monolithic RF quadrature modulators is
designed for use from 869 MHz to 960 MHz and from
1805 MHz to 1990 MHz. Excellent phase accuracy and
amplitude balance enable high performance, direct RF
modulation for communications systems.
The ADL5590 and ADL5591 can be used as direct RF
modulators in digital communications systems such as those
using the Global System for Mobile Communications (GSM)
network. In addition, the devices are compatible with enhanced
data rates for GSM evolution (EDGE).
This family is fabricated using an advanced silicon-germanium
bipolar process from Analog Devices, Inc., and is available in a
36-lead, exposed pad LFCSP. The devices operate from −40°C
to +85°C.