
1200-2500MHz Balanced
Mixer with LO Buffer,
IF Amp, and RF Balun
Preliminary Technical Data
ADL5355
REV. PrD
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FEATURES
RF Frequency 1200MHz to 2500MHz
IF Range 40 to 450MHz
Power Conversion Gain of 8.1dB
SSB Noise Figure of 9.4dB
SSB Noise Figure with 10dBm Blocker of 18dB
Input IP3 of 29dBm
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 to 5 V
Exposed Paddle 5 x 5 mm, 20 Lead LFCSP Package
2000V HBM / 500V FICDM ESD Performance
APPLICATIONS
Cellular Base Station Receivers
Transmit Observation Receivers
Radio Link Downconverters
GENERAL DESCRIPTION
The ADL5355 utilizes a highly linear doubly balanced passive
mixer core along with integrated RF and LO balancing circuitry
to allow for single-ended operation. The ADL5355 incorporates
an RF balun allowing for optimal performance over a 1200 to
2500 MHz RF input frequency range using low-side LO
injection for RF frequencies between 1700-2500MHz, and high-
side injection for frequencies between 1200-MHz and
1700MHz. (For a high side injection version for the 1700-
2500MHz band, please contact the factory). The balanced
passive mixer arrangement provides good LO to RF leakage,
typically better than -25dBm, 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 amp follows the passive
mixer core, to yield a typical power conversion gain of 8.1dB,
and can be utilized with a wide range of output impedances.
(For a higher IIP3 version of the single mixer without the IF
amplifiers, please contact the factory).
Figure 1. Functional Block Diagram
The ADL5355 provides two switched LO paths that can be
utilized 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. An additional logic pin is
provided to power down (<100uA) the circuit when desired.
For low voltage applications, the ADL5355 is capable if
operation at voltages down to 3.3V with substantially reduced
current.
The ADL5355 is fabricated using a BiCMOS high performance
IC process. The device will be available in a 5mm x 5mm 20-
lead LFCSP package and operates over a 40°C to +85°C
temperature range. An evaluation board is also available.
RF Frequency
Single
Mixer
Single
Mixer + IF
Amp
Dual Mixer
+ IF Amp
500MHz to
1700MHz
ADL5367
ADL5357
ADL5358
1200MHz to
2500MHz
ADL5365
ADL5355
ADL5356