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PDF ( 数据手册 , 数据表 ) ADRF6612

零件编号 ADRF6612
描述 700 MHz to 3000 MHz Dual Passive Receive Mixer
制造商 Analog Devices
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ADRF6612 数据手册, 描述, 功能
Data Sheet
700 MHz to 3000 MHz Dual Passive
Receive Mixer with Integrated PLL and VCO
ADRF6612
FEATURES
RF frequency: 700 MHz to 3000 MHz, continuous
LO input frequency: 200 MHz to 2700 MHz, high-side or low-
side injection
IF range: 40 MHz to 500 MHz
Power conversion gain of 9.0 dB
Single sideband (SSB) noise figure of 11.3 dB
Input IP3 of 30 dBm
Input P1dB of 10.6 dBm
Typical LO input drive of 0 dBm
Single-ended, 50 Ω RF port
Single-ended or balanced LO input port
Serial port interface (SPI) control on all functions
Exposed pad, 7 mm × 7 mm, 48-lead LFCSP
APPLICATIONS
Multiband/multistandard cellular base station diversity
receivers
Wideband radio link diversity downconverters
Multimode cellular extenders and picocells
FUNCTIONAL BLOCK DIAGRAM
GND 1
2 46
GND 3
VCO
GND 6
VCC1 7 VCO
45 44 48 47 43 42
39 38
PLL REF BUFFER
PFD/CP
FRACTIONAL DIVIDER
VCO
EXTVCOIN+ 4
EXTVCOIN– 5
DECL1 8
DECL2 9
DECL3 10
DECL4 11
DECL5 12
VCO
LDO
SPI
2.5V
LDO
÷1 TO
32
ADRF6612
PLL
3.3V
LDO
DIV
3.3V
LDO
SPI
CONTROL
13 14 15 16 17 18 19
22 23
41 40 37
34 VCC10
33 VCC9
32 VCC8
36 RFBCT1
35 RFIN1
31 VCC7
30 LDO2
26 RFIN2
25 RFBCT2
29 VCC6
28 VCC5
27 VCC4
20 21 24
Figure 1.
GENERAL DESCRIPTION
The ADRF6612 is a dual radio frequency (RF) mixer and
intermediate frequency (IF) amplifier with an integrated phase-
locked loop (PLL) and voltage controlled oscillators (VCOs). The
ADRF6612 uses revolutionary broadband square wave limiting
local oscillator (LO) amplifiers to achieve an unprecedented RF
bandwidth of 700 MHz to 3000 MHz. Unlike narrow-band sine
wave LO amplifier solutions, the LO can be applied above or
below the RF input over an extremely wide bandwidth. Energy
storage elements are not utilized in the LO amplifier, thus dc
current consumption also decreases with decreasing LO
frequency.
The ADRF6612 utilizes highly linear, doubly balanced passive
mixer cores with integrated RF and LO balancing circuits to
allow single-ended operation. Integrated RF baluns allow optimal
performance over the 700 MHz to 3000 MHz RF input frequency.
The balanced passive mixer arrangement provides outstanding
LO to RF and LO to IF leakages, excellent RF to IF isolation,
and excellent intermodulation performance over the full RF
bandwidth.
The balanced mixer cores provide extremely high input
linearity, allowing the device to be used in demanding
Rev. A
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor 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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
wideband applications where in band blocking signals may
otherwise result in the degradation of dynamic range. Noise
performance under blocking is comparable to narrow-band
passive mixer designs. High linearity IF buffer amplifiers follow the
passive mixer cores, yielding typical power conversion gains of
9 dB, and can be matched to a wide range of output impedances.
The PLL architecture supports both integer-N and fractional-N
operation and can generate the entire LO frequency range of
200 MHz to 2700 MHz using an external reference input
frequency anywhere in the range of 12 MHz to 320 MHz. An
external loop filter provides flexibility in trading off phase noise
vs. acquisition time. To reduce fractional spurs in fractional-N
mode, a sigma-delta (Σ-Δ) modulator controls the post-VCO
programmable divider. The VCO consists of multiple VCO cores.
All features of the ADRF6612 are controlled via a 3-wire SPI
resulting in optimum performance and minimum external
components.
The ADRF6612 is fabricated using a BiCMOS, high performance
IC process. The device is available in a 7 mm × 7 mm, 48-lead
LFCSP package and operates over a −40°C to +85°C temperature
range. An evaluation board is available.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com







ADRF6612 pdf, 数据表
Data Sheet
VCO SPECIFICATIONS, OPEN-LOOP
High performance mode, TA = 25°C, measured on LO output, unless otherwise noted.
Table 5.
Parameter
VCO_0 PHASE NOISE
VCO_1 PHASE NOISE
VCO_2 PHASE NOISE
VCO_3 PHASE NOISE
Test Conditions/Comments
fVCO = 5.15 GHz
1 kHz offset
50 kHz offset
100 kHz offset
1 MHz offset
10 MHz offset
40 MHz offset
fVCO = 4.3 GHz
1 kHz offset
50 kHz offset
100 kHz offset
1 MHz offset
10 MHz offset
40 MHz offset
fVCO = 3.8 GHz
1 kHz offset
50 kHz offset
100 kHz offset
1 MHz offset
10 MHz offset
40 MHz offset
fVCO = 3.2 GHz
1 kHz offset
50 kHz offset
100 kHz offset
1 MHz offset
10 MHz offset
40 MHz offset
Min
ADRF6612
Typ
−50
−104.4
−112.6
−137.7
−154
−155.1
−54
−106.1
−115
−138.9
−155.8
−155.2
−53.6
−106.6
−114.6
−140.8
−155.4
−156.3
−48.5
−106
−115.3
−140.2
−157.7
−156.3
Max
Unit
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
dBc/Hz
Rev. A | Page 7 of 57







ADRF6612 equivalent, schematic
Data Sheet
2.55
2.50
RF = 2500MHz, HIGH-SIDE LO
2.45 RF = 2500MHz, LOW-SIDE LO
2.40
2.35 RF = 1900MHz, HIGH-SIDE LO
RF = 1900MHz, LOW-SIDE LO
2.30
2.25
2.20
RF = 900MHz, HIGH-SIDE LO
RF = 900MHz, LOW-SIDE LO
2.15
2.10
40 80 120 160 200 240 280 320 360 400 440 480
IF FREQUENCY (MHz)
Figure 16. Power Dissipation vs. IF Frequency for Three RF Frequencies
10.0
9.5
9.0
8.5
8.0
RF = 900MHz, LOW-SIDE LO
RF = 1900MHz, LOW-SIDE LO
RF = 2500MHz, LOW-SIDE LO
RF = 900MHz, HIGH-SIDE LO
RF = 1900MHz, HIGH-SIDE LO
RF = 2500MHz, HIGH-SIDE LO
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
40 80 120 160 200 240 280 320 360 400 440 480
IF FREQUENCY (MHz)
Figure 17. Power Conversion Gain vs. IF Frequency for Three RF Frequencies
36
34
32
30
28
26
24
22
20
18
16
14
12
10
40
RF = 900MHz, LOW-SIDE LO
RF = 1900MHz, LOW-SIDE LO
RF = 2500MHz, LOW-SIDE LO
RF = 900MHz, HIGH-SIDE LO
RF = 1900MHz, HIGH-SIDE LO
RF = 2500MHz, HIGH-SIDE LO
80 120 160 200 240 280 320 360 400 440 480
IF FREQUENCY (MHz)
Figure 18. Input IP3 vs. IF Frequency for Three RF Frequencies
ADRF6612
85
80
75
70
65
60
55
50
45
40
35
30
40
RF = 900MHz, LOW-SIDE LO
RF = 1900MHz, LOW-SIDE LO
RF = 2500MHz, LOW-SIDE LO
RF = 900MHz, HIGH-SIDE LO
RF = 1900MHz, HIGH-SIDE LO
RF = 2500MHz, HIGH-SIDE LO
80 120 160 200 240 280 320 360 400 440 480
IF FREQUENCY (MHz)
Figure 19. Input IP2 vs. IF Frequency for Three RF Frequencies
15
RF = 900MHz, LOW-SIDE LO
14
RF = 1900MHz, LOW-SIDE LO
RF = 2500MHz, LOW-SIDE LO
RF = 900MHz, HIGH-SIDE LO
13 RF = 1900MHz, HIGH-SIDE LO
RF = 2500MHz, HIGH-SIDE LO
12
11
10
9
8
7
6
5
40 80 120 160 200 240 280 320 360 400 440 480
IF FREQUENCY (MHz)
Figure 20. Input P1dB vs. IF Frequency for Three RF Frequencies
18
–40°C, LOW SIDE LO
17
+25°C, LOW SIDE LO
+85°C, LOW SIDE LO
–40°C, HIGH-SIDE LO
16 +25°C, HIGH-SIDE LO
+85°C, HIGH-SIDE LO
15
14
13
12
11
10
9
8
50 100 150 200 250 300 350 400 450
IF FREQUENCY (MHz)
Figure 21. SSB Noise Figure vs. IF Frequency for Three RF Frequencies
Rev. A | Page 15 of 57










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