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PDF LTC5592 Data sheet ( Hoja de datos )
| Número de pieza | LTC5592 | |
| Descripción | Dual 1.6GHz to 2.7GHz High Dynamic Range Downconverting Mixer | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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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 1.5GHz 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
1.5GHz to 2.5GHz
LTC5593
2.3GHz to 4.5GHz
2.1GHz to 4.2GHz
Typical Application
Wideband LTE Receiver
VCCIF
3.3V or 5V
1nF 190MHz
SAW
1nF
1µF 22pF 150nH 150nH
IF
AMP
190MHz
BPF
ADC
RF
2300MHz TO
2400MHz
LNA
RF
2300MHz TO
2400MHz
LNA
VCCIF
IFA+ IFA–
IMAGE
BPF 22pF
IF
AMP
RFA
VCCA
BIAS
LO
AMP
22pF
VCC
1µF 3.3V
ENA ENA
(0V/3.3V)
2.2pF LO 2160MHz
LO SYNTH
IMAGE
BPF 22pF
RFB
LO
AMP
IF
AMP
IFB+ IFB–
BIAS
VCCB
150nH 150nH
ENB ENB
(0V/3.3V)
22pF
VCC
22pF
1nF 190MHz
190MHz
SAW BPF
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 GC
8 LO = 2160MHz
7
PLO = 0dBm
RF = 2350 ±30MHz
TEST CIRCUIT IN FIGURE 1
6
160 170 180 190 200
IF FREQUENCY (MHz)
210
24
23
22
21
220
5592 TA01b
LTC5592 ONLY, MEASURED ON EVALUATION BOARD
For more information www.linear.com/LTC5592
5592fa
1
1 page  
LTC5592
Typical AC Performance Characteristics Low Side LO
∆VCf C= =2M3.H3zV),,VICFC=IF1=930.M3HV,z,ENunAle=sEsNoBth=erHwigishe, nISoEtLed=.LToews,t TciCrc=u2it5s°hCo,wPnLOin=F0idgBumre,1P.RF = –3dBm (–3dBm/tone for two-tone IIP3 tests,
Conversion Gain and IIP3 vs
RF Frequency
28 17
26 16
24 IIP3
15
22 14
20 –40°C 13
18
25°C
85°C
12
16 105°C 11
14 10
12
10
GC
9
8
87
66
1500 1700 1900 2100 2300 2500 2700
RF FREQUENCY (MHz)
SSB NF vs RF Frequency
16
15
14
13
–40°C
25°C
85°C
105°C
12
11
10
9
8
7
6
1500 1700 1900 2100 2300 2500 2700
RF FREQUENCY (MHz)
Channel Isolation vs RF Frequency
55
50
45
40
35
1900
–40°C
25°C
85°C
2100
2300
2500
RF FREQUENCY (MHz)
2700
5592 G01
5592 G02
5592 G03
1950MHz Conversion Gain, IIP3
and NF vs LO Power
28 22
26 20
24 IIP3
18
22 –40°C 16
20
25°C
85°C
14
18 12
16 10
14
12
10
GC
NF
8
6
4
82
6
–6 –4 –2 0 2 4
LO INPUT POWER (dBm)
0
6
2350MHz Conversion Gain, IIP3
and NF vs LO Power
28 22
26
24 IIP3
20
18
22 –40°C 16
20
25°C
85°C
14
18 12
16 10
14
12
NF
8
6
10 GC
8
4
2
6
–6 –4 –2 0 2 4
LO INPUT POWER (dBm)
0
6
2550MHz Conversion Gain, IIP3
and NF vs LO Power
28 22
26 20
24 IIP3
18
22 –40°C 16
20
25°C
85°C
14
18 12
16 10
14 NF 8
12 6
10 GC
8
4
2
6
–6 –4 –2 0 2 4
LO INPUT POWER (dBm)
0
6
5592 G04
5592 G05
5592 G06
Conversion Gain, IIP3 and NF vs
Supply Voltage (Single Supply)
28 22
26
24 IIP3
20
18
22 RF = 2350MHz
20 VCC = VCCIF
18
–40°C
25°C
85°C
16
14
12
16 10
14 NF 8
12 6
10 GC
8
4
2
60
3 3.1 3.2 3.3 3.4 3.5 3.6
VCC, VCCIF SUPPLY VOLTAGE (V)
5592 G07
Conversion Gain, IIP3 and NF vs
Supply Voltage (Dual Supply)
30
28
26
24 IIP3
22
20
–40°C
25°C
85°C
18
16
24
22
20
18
16
14
12
10
14
12
10 GC
8
NF
RF = 2350MHz
VCC = 3.3V
8
6
4
2
60
3 3.5 4 4.5 5 5.5
VCCIF SUPPLY VOLTAGE (V)
5592 G08
Conversion Gain, IIP3 and RF Input
P1dB vs Temperature
30
28
26
24
IIP3
22 RF = 2350MHz
20
VCCIF = 3.3V
VCCIF = 5V
18
16
14
12
P1dB
10
8
6
–40
GC
–10 20 50 80
CASE TEMPERATURE (°C)
110
5592 G09
For more information www.linear.com/LTC5592
5592fa
5
5 Page 
Test Circuit
VCCIF
3.3V TO 5V
C6
T1A
4:1
C7A
L1A L2A
C5A
IFA
50Ω
0.015”
0.062”
VCC
3.3V
0.015”
24 23 22
C1A GND IFGNDA IFA+
RFA
50Ω
1 RFA
21 20 19
IFA– IFBA VCCA
ISEL 18
C3A C4
ISEL
(0V/3.3V)
C8A
2 CTA
LTC5592
ENA 17
ENA
(0V/3.3V)
3 GND
25
C2
LO 16
LO
50Ω
GND
4 GND
GND 15
C8B
5 CTB
C1B
RFB
50Ω
6 RFB
GND IFGNDB IFB+
789
ENB 14
GND 13
IFB– IFBB VCCB
10 11 12
ENB
(0V/3.3V)
C5B
L2B L1B
C3B
5592 TC01
C7B
4:1
T1B
IFB
50Ω
L1, L2 vs IF FREQUENCIES
IF (MHz)
L1, L2 (nH)
140 270
190 150
240 100
300 56
380 33
450 22
REF DES
C1A, C1B
C2
C3A, C3B
C5A, C5B
C4, C6
C7A, C7B
C8A, C8B
L1A, L1B
L2A, L2B
T1A, T1B
VALUE
22pF
2.2pF
22pF
1µF
1000pF
4.7pF
150nH
TC4-1W-7ALN+
LTC5592
RF
GND DC1710A
EVALUATION BOARD
BIAS STACK-UP
GND (NELCO N4000-13)
SIZE VENDOR
0402 AVX
0402 AVX
0402 AVX
0603 AVX
0402 AVX
0402 AVX
0603 Coilcraft
Mini-Circuits
Figure 1. Standard Downmixer Test Circuit Schematic (190MHz IF)
For more information www.linear.com/LTC5592
5592fa
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet LTC5592.PDF ] | |
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