LTC5592 Datasheet, PDF (1/20 Pages) Linear Technology – Dual 1.6GHz to 2.7GHz High Dynamic Range Downconverting Mixer

FEATURES
n _{Conversion Gain: 8.3dB at 2.35GHz}
n _{IIP3: 27.3dBm at 2.35GHz}
n _{Noise Figure: 9.8dB at 2.35GHz}
n _{15.3dB NF Under 5dBm Blocking}
n _{High Input P1dB}
n _{47dB Channel-to-Channel Isolation}
n _{3.3V Supply, 1.3W Power Consumption}
n _{Low Power Mode for 0.8W Consumption}
n _{Independent Channel Shutdown Control}
n _{50Ω Single-Ended RF and LO Inputs}
n _{LO Input Matched In All Modes}
n _{0dBm LO Drive Level}
n _{Small Package and Solution Size}
n _{–40°C to 105°C Operation}
APPLICATIONS
n _{3G/4G Wireless Infrastructure Diversity Receivers}
(LTE, W-CDMA, TD-SCDMA, WiMAX, GSM 1800)
n _{MIMO Infrastructure Diversity Receivers}
n _{High Dynamic Range Downmixer Applications}
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
LTC5592
Dual 1.6GHz to 2.7GHz
High Dynamic Range
Downconverting Mixer
DESCRIPTION
The LTC^®5592 is part of a family of dual-channel high dy-
namic range, high gain downconverting mixers covering
the 600MHz to 4.5GHz RF frequency range. The LTC5592
is optimized for 1.6GHz to 2.7GHz RF applications. The
LO frequency must fall within the 1.7GHz to 2.5GHz
range for optimum performance. A typical application
is a LTE or WiMAX receiver with a 2.3GHz to 2.7GHz RF
input and low side LO.
The LTC5592’s high conversion gain and high dynamic
range enable the use of lossy IF filters in high selectivity
receiver designs, while minimizing the total solution cost,
board space and system-level variation. A low current
mode is provided for additional power savings and each
of the mixer channels has independent shutdown control.
High Dynamic Range Dual Downconverting Mixer Family
PART NUMBER
RF RANGE
LO RANGE
LTC5590
600MHz to 1.7GHz 700MHz to 1.5GHz
LTC5591
1.3GHz to 2.3GHz
1.4GHz to 2.1GHz
LTC5592
1.6GHz to 2.7GHz 1.7GHz to 2.5GHz
LTC5593
2.3GHz to 4.5GHz
2.1GHz to 4.2GHz
TYPICAL APPLICATION
Wideband LTE Receiver
1nF
190MHz
SAW
190MHz
BPF
V_CCIF
1nF
IF
3.3V or 5V
1μF
22pF ^{150nH 150nH}
AMP
ADC
RF
2300MHz TO
LNA
2400MHz
RF
2300MHz TO
LNA
2400MHz
V_CCIF
IFA⁺
IF A^–
IMAGE
IF
BPF 22pF
AMP
RFA
V_CCA
BIAS
LO
AMP
22pF
V_CC
1μF ^3.3V
ENA
ENA
(0V/3.3V)
2.2pF ^{LO 2160MHz}
LO
SYNTH
IMAGE
BPF 22pF
RFB
LO
AMP
ENB
ENB
IF
AMP
IFB⁺
IF B^–
BIAS
V_CCB
(0V/3.3V)
150nH 150nH
V_CC
22pF
1nF ^190MHz
190MHz
SAW
BPF
22pF
1nF
IF
AMP
ADC
5592 TA01a
Wideband Conversion Gain
and IIP3 vs IF Frequency
14
29
13
28
IIP3
12
27
11
26
10
25
9
G_C
8 _{LO = 2160MHz}
P_LO = 0dBm
7 _{RF = 2350 ±30MHz}
TEST CIRCUIT IN FIGURE 1
6
160 170 180 190 200 210
IF FREQUENCY (MHz)
24
23
22
21
220
5592 TA01b
LTC5592 ONLY, MEASURED ON EVALUATION BOARD
5592f
1