1200 MHz to 2500 MHz, Dual-Balanced
Mixer, LO Buffer, IF Amplifier, and RF Balun
ADL5356
Rev. 0
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FEATURES
RF frequency range of 1200 MHz to 2500 MHz
IF frequency range of 30 MHz to 450 MHz
Power conversion gain: 8.2 dB
SSB noise figure of 9.9 dB
SSB noise figure with 5 dBm blocker of 21 dB
Input IP3 of 31 dBm
Input P1dB of 11 dBm
Typical LO drive of 0 dBm
Single-ended, 50 Ω RF and LO input ports
High isolation SPDT LO input switch
Single-supply operation: 3.3 V to 5 V
Exposed paddle, 6 mm × 6 mm, 36-lead LFCSP
APPLICATIONS
Cellular base station receivers
Transmit observation receivers
Radio link downconverters
GENERAL DESCRIPTION
The ADL5356 uses a highly linear, doubly balanced, passive mixer
core along with integrated RF and local oscillator (LO) balancing
circuitry to allow single-ended operation. The ADL5356
incorporates the RF baluns, allowing for optimal performance over
a 1200 MHz to 2500 MHz RF input frequency range. Performance
is optimized for RF frequencies from 1700 MHz to 2500 MHz
using a low-side LO and RF frequencies from 1200 MHz to
1700 MHz using a high-side LO. The balanced passive mixer
arrangement provides good LO-to-RF leakage, typically better
than −35 dBm, and excellent intermodulation performance. The
balanced mixer core also provides extremely high input linearity,
allowing the device to be used in demanding cellular applications
where in-band blocking signals may otherwise result in the
degradation of dynamic performance. A high linearity IF buffer
amplifier follows the passive mixer core to yield a typical power
conversion gain of 8.2 dB and can be used with a wide range of
output impedances.
The ADL5356 provides two switched LO paths that can be used
in TDD applications where it is desirable to ping-pong between
two local oscillators. LO current can be externally set using a
resistor to minimize dc current commensurate with the desired
level of performance. For low voltage applications, the ADL5356 is
capable of operation at voltages down to 3.3 V with substantially
reduced current. Under low voltage operation, an additional logic
pin is provided to power down (<300 µA) the circuit when desired.
FUNCTIONAL BLOCK DIAGRAM
2
3
1
36 35 34 33 32 31 30 29 28
10 11 12 13 14 15 16 17 18
4
6
7
5
8
9
26
25
27
24
22
21
23
20
19
ADL5356
07883-001
VGS0
VGS1
VGS2
LOSW
PWDN
VPOS
COMM
LOI2
LOI1
MNIN
MNCT
COMM
DVIN
VPOS
COMM
VPOS
COMM
DVCT
V
P
O
S
D
V
G
M
C
O
M
M
D
V
O
P
D
V
O
N
D
V
L
E
V
P
O
S
D
V
L
G
N
C
M
N
O
N
C
O
M
M
M
N
G
M
V
P
O
S
M
N
O
P
M
N
L
E
V
P
O
S
M
N
L
G
N
C
Figure 1.
The ADL5356 is fabricated using a BiCMOS high performance
IC process. The device is available in a 6 mm × 6 mm, 36-lead
LFCSP and operates over a −40°C to +85°C temperature range.
An evaluation board is also available.
Table 1. Passive Mixers
RF Frequency
(MHz)
Single
Mixer
Single Mixer
and IF Amp
Dual Mixer
and IF Amp
500 to 1700 ADL5367 ADL5357 ADL5358
1200 to 2500 ADL5365 ADL5355 ADL5356
