1200 MHz to 2500 MHz, Dual-Balanced
Mixer, LO Buffer, IF Amplifier, and RF Balun
ADL5356
FEATURES
FUNCTIONAL BLOCK DIAGRAM
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
36
35
34
33
32
31
30
29
28
1
2
3
4
5
6
7
8
9
27
26
25
24
23
22
21
20
19
MNIN
MNCT
COMM
VPOS
COMM
VPOS
COMM
DVCT
DVIN
LOI2
VGS2
VGS1
VGS0
LOSW
PWDN
VPOS
COMM
LOI1
APPLICATIONS
ADL5356
Cellular base station receivers
Transmit observation receivers
Radio link downconverters
10
11
12
13
14
15
16
17
18
GENERAL DESCRIPTION
Figure 1.
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 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
1200 to 2500
ADL5367
ADL5365
ADL5357
ADL5355
ADL5358
ADL5356
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.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2009 Analog Devices, Inc. All rights reserved.
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