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ADRF6602 Schematic ( PDF Datasheet ) - Analog Devices

Teilenummer ADRF6602
Beschreibung 1000 MHz to 3100 MHz Rx Mixer
Hersteller Analog Devices
Logo Analog Devices Logo 




Gesamt 30 Seiten
ADRF6602 Datasheet, Funktion
Data Sheet
1000 MHz to 3100 MHz Rx Mixer with
Integrated Fractional-N PLL and VCO
ADRF6602
FEATURES
Rx mixer with integrated fractional-N PLL
RF input frequency range: 1000 MHz to 3100 MHz
Internal LO frequency range: 1550 MHz to 2150 MHz
Input P1dB: 14.8 dBm
Input IP3: 30 dBm
IIP3 optimization via external pin
SSB noise figure
IP3SET pin open: 13.8 dB
IP3SET pin at 3.3 V: 15 dB
Voltage conversion gain: 6.5 dB
Matched 200 Ω IF output impedance
IF 3 dB bandwidth: 500 MHz
Programmable via 3-wire SPI interface
40-lead, 6 mm × 6 mm LFCSP
APPLICATIONS
Cellular base stations
GENERAL DESCRIPTION
The ADRF6602 is a high dynamic range active mixer with
integrated phase-locked loop (PLL) and voltage controlled
oscillator (VCO). The PLL/synthesizer uses a fractional-N
PLL to generate a fLO input to the mixer. The reference input
can be divided or multiplied and then applied to the PLL phase
frequency detector (PFD).
The PLL can support input reference frequencies from 12 MHz
to 160 MHz. The PFD output controls a charge pump whose
output drives an off-chip loop filter.
The loop filter output is then applied to an integrated VCO. The
VCO output at 2× fLO is applied to an LO divider, as well as to a
programmable PLL divider. The programmable PLL divider is
controlled by a Σ-Δ modulator (SDM). The modulus of the SDM
can be programmed from 1 to 2047.
The active mixer converts the single-ended 50 Ω RF input to
a 200 Ω differential IF output. The IF output can operate up
to 500 MHz.
The ADRF6602 is fabricated using an advanced silicon-germanium
BiCMOS process. It is available in a 40-lead, RoHS-compliant,
6 mm × 6 mm LFCSP with an exposed paddle. Performance is
specified over the −40°C to +85°C temperature range.
Table 1.
Part No.
ADRF6601
ADRF6602
ADRF6603
ADRF6604
Internal LO
Range
750 MHz
1160 MHz
1550 MHz
2150 MHz
2100 MHz
2600 MHz
2500 MHz
2900 MHz
±3 dB RFIN
Balun Range
300 MHz
2500 MHz
1000 MHz
3100 MHz
1100 MHz
3200 MHz
1200 MHz
3600 MHz
±1 dB RFIN
Balun Range
450 MHz
1600 MHz
1350 MHz
2750 MHz
1450 MHz
2850 MHz
1600 MHz
3200 MHz
LODRV_EN 36
LON 37
LOP 38
PLL_EN 16
DATA 12
CLK 13
LE 14
REF_IN 6
MUXOUT 8
FUNCTIONAL BLOCK DIAGRAM
VCC1
1
VCC2
10
VCC_LO
17
VCC_MIX VCC_V2I
22 27
VCC_LO
34
NC NC
32 33
ADRF6602
INTERNAL LO RANGE 3.3V
1550MHz TO 2150MHz LDO
BUFFER
2.5V
LDO
2 DECL3P3
9 DECL2P5
SPI
INTERFACE
×2
MUX
÷2
÷4
FRACTION
REG
MODULUS
INTEGER
REG
THIRD-ORDER
FRACTIONAL
INTERPOLATOR
N COUNTER
21 TO 123
TEMP
SENSOR
+
PHASE
FREQUENCY
DETECTOR
BUFFER
PRESCALER
÷2
CHARGE PUMP
250µA,
500µA (DEFAULT),
750µA,
1000µA
2:1
MUX
DIV
BY
2, 1
VCO
CORE
VCO
LDO
40 DECLVCO
26 RFIN
29 IP3SET
4 7 11 15 20 21 23 24 25 28 30 31 35
GND
5
RSET
3 39
18 19
CP VTUNE IFP IFN
Figure 1.
Rev. D
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rights of third parties that may result from its use. Specifications subject to change without notice. No
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Tel: 781.329.4700 ©2010–2013 Analog Devices, Inc. All rights reserved.
Technical Support
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ADRF6602 Datasheet, Funktion
ADRF6602
ABSOLUTE MAXIMUM RATINGS
Table 6.
Parameter
Supply Voltage, VCC1, VCC2, VCC_LO,
VCC_MIX, VCC_V2I
Digital I/O, CLK, DATA, LE
IFP, IFN
RFIN
LOP, LON
θJA (Exposed Paddle Soldered Down)
Maximum Junction Temperature
Operating Temperature Range
Storage Temperature Range
Rating
−0.5 V to +5.5 V
−0.3 V to +3.6 V
−0.3 V to VCC_V2I + 0.3 V
16 dBm
13 dBm
35°C/W
150°C
−40°C to +85°C
−65°C to +150°C
Data Sheet
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
ESD CAUTION
Rev. D | Page 6 of 32

6 Page









ADRF6602 pdf, datenblatt
ADRF6602
0
IP3SET = OPEN
–5 IP3SET = 3.3V
–10
TA = +85°C
TA = +25°C
TA = –40°C
–15
–20
–25
–30
–35
–40
–45
–50
–55
–60
1300
1500
1700
1900
RF FREQUENCY (MHz)
2100
2300
Figure 20. RF-to-IF Leakage vs. RF Frequency, High-Side LO, IF = 140 MHz,
LO Output Turned Off
0
IP3SET = OPEN
–1 IP3SET = 3.3V
–2
TA = +85°C
TA = +25°C
TA = –40°C
–3
–4
–5
–6
–7
–8
–9
–10
1550
1650
1750
1850
1950
LO FREQUENCY (MHz)
2050
Figure 21. LO Output Amplitude vs. LO Frequency
2150
20
15
10
5
0
–5
–10
–15
–20
0
50 100 150 200 250
TIME (ns)
Figure 22. Frequency Deviation from LO Frequency at
LO = 1.97 GHz to 1.96 GHz vs. Lock Time
Data Sheet
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1550
TA = +85°C
TA = +25°C
TA = –40°C
1650
1750
1850
1950
LO FREQUENCY (MHz)
2050
Figure 23. VTUNE vs. LO Frequency
2150
350
IP3SET = OPEN
IP3SET = 3.3V
300
TA = +85°C
TA = +25°C
TA = –40°C
250
200
150
100
1550
1650
1750
1850
1950
LO FREQUENCY (MHz)
2050
Figure 24. Supply Current vs. LO Frequency
2150
2.0
IP3SET = OPEN
1.9 IP3SET = 3.3V
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
–55 –35 –15
5
25 45 65
TEMPERATURE (°C)
85 105
Figure 25. VPTAT Voltage vs. Temperature (IP3SET = Optimized, Open)
Rev. D | Page 12 of 32

12 Page





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