RF2051TR7 RFMD, RF2051TR7 Datasheet

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RF2051TR7

Manufacturer Part Number
RF2051TR7
Description
IC RF MIXER PLL/VCO 32-QFN
Manufacturer
RFMD
Datasheet

Specifications of RF2051TR7

Rf Type
UHF, VHF
Frequency
30MHz ~ 2.5GHz
Number Of Mixers
2
Gain
-2dB
Noise Figure
12dB
Secondary Attributes
Up/Down Converter
Current - Supply
75mA
Voltage - Supply
2.7 V ~ 3.6 V
Package / Case
32-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
689-1095-2

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
RF2051TR7
Manufacturer:
RFMD
Quantity:
5 000
Features
Applications
DS100630
30MHz to 2.5GHz Frequency
Range
Fractional-N Synthesizer
Very Fine Frequency Resolution
1.5Hz for 26MHz Reference
Low Phase Noise VCO
On-Chip Crystal-Sustaining
Circuit With Programmable
Loading Capacitors
Two High-Linearity RF Mixers
Integrated LO Buffers
Mixer Input IP3 +18dBm
Mixer Bias Adjustable for Low
Power Operation
Full Duplex Mode
2.7V to 3.6V Power Supply
Low Current Consumption
55mA to 75mA at 3V
3-Wire Serial Interface
CATV Head-Ends
Digital TV Up/Down Converters
Digital TV Repeaters
Multi-Dwelling Units
Cellular Repeaters
Frequency Band Shifters
UHF/VHF Radios
Diversity Receivers
Software Defined Radios
Satellite Communications
Super-Heterodyne Radios
RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade-
mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
RF2051High
Performance
Wideband RF
PLL/VCO with
Integrated RF
Mixers
Product Description
The RF2051 is a low power, high performance, wideband RF frequency conversion
chip with integrated local oscillator (LO) generation and a pair of RF mixers. The RF
synthesizer includes an integrated fractional-N phase locked loop with voltage con-
trolled oscillators (VCOs) and dividers to produce a low-phase noise LO signal with a
very fine frequency resolution. The buffered LO output drives the built-in RF mixers
which convert the signal into the required frequency band. The mixer bias current
can be programmed dependent on the required performance and available supply
current. The LO generation blocks have been designed to continuously cover the
frequency range from 300MHz to 2400MHz. The RF mixers are very broad band
and operate from 30MHz to 2500MHz at the input and output, enabling both up
and down conversion. An external crystal of between 10MHz and 52MHz or an
external reference source of between 10MHz and 104MHz can be used with the
RF2051 to accommodate a variety of reference frequency options.
All on-chip registers are controlled through a simple three-wire serial interface. The
RF2051 is designed for 2.7V to 3.6V operation for compatibility with portable, bat-
tery powered devices. It is available in a plastic 32-pin, 5mmx5mm QFN package.
GaAs HBT
GaAs MESFET
InGaP HBT
HIGH PERFORMANCE WIDEBAND RF PLL/VCO WITH
Optimum Technology Matching® Applied
Synth
SiGe BiCMOS
Si BiCMOS
SiGe HBT
Functional Block Diagram
sequence
generator
Charge
Frac-N
divider
pump
Ref
Package: QFN, 32-Pin, 5mmx5mm
N divider
detector
Phase /
freq
GaAs pHEMT
Si CMOS
Si BJT
INTEGRATED RF MIXERS
VCO
divider
divider
Mux
LO
LO
RF2051
GaN HEMT
RF MEMS
1 of 40

Related parts for RF2051TR7

RF2051TR7 Summary of contents

Page 1

... RF MICRO DEVICES®, RFMD®, Optimum Technology Matching®, Enabling Wireless Connectivity™, PowerStar®, POLARIS™ TOTAL RADIO™ and UltimateBlue™ are trademarks of RFMD, LLC. BLUETOOTH is a trade- mark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. ©2006, RF Micro Devices, Inc. ...

Page 2

... LFILT1 XTALIPP XTALIPN ENBL INDP INDN REXT ANA_DEC LFILT1 LFILT2 LFILT3 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com ANA_VDD DIG_VDD ANA_DEC Analog Digital Serial Data Interface, Regulator Regulator Control and Biasing Mixer 1 VCO 3 ...

Page 3

... Note 3: Alternatively an external reference can be AC-coupled to pin 11 XTALIPN, and pin 10 XTALIPP decoupled to ground. This may make PCB routing simpler. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 RF2051 . An RC low-pass filter could be used to reduce ...

Page 4

... RoHS status based on EUDirective2002/95/EC (at time of this document revision). -40 to +85 °C The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any -40 to +150 °C infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD ...

Page 5

... Local Oscillator Synthesizer Output Frequency 300 Phase Detector Frequency Closed Loop Phase-Noise at 10kHz Offset 2GHz LO Frequency 1GHz LO Frequency 500MHz LO Frequency 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 Specification Unit Typ. Max. +10 dBm +18 dBm ...

Page 6

... VCO3 With Active Loop Filter -60 -80 -100 -120 -140 -160 1 10 100 Offset Frequency (kHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com =3V, T =25°C, as measured on RF2051 evaluation board -60 2000MHz 1000MHz 500MHz -80 -100 -120 ...

Page 7

... VCO3 Open Loop Phase Noise -20 -40 -60 -80 -100 -120 -140 -160 1 10 100 Offset Frequency (kHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 =3V, T =25°C unless stated, as measured on RF2051 versu s Freq u ency 50 2400MHz 45 2200MHz 2000MHz 40 35 ...

Page 8

... Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com =3V, T =25°C unless stated, as measured on RF2051 evaluation DD A Gain versus Temperature and Supply Voltage 0.0 -0.5 -1.0 -1.5 -2.0 -40°C -2.5 +27° ...

Page 9

... Temperature (°C) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 =3V, T =25°C unless stated, as measured on RF2051 evaluation DD A Mixer 1 Input IP3 versus Bias Current Setting -40°C 5 +27° ...

Page 10

... RF Input Frequency (MHz) 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com =3V, T =25°C unless stated, as measured on RF2051 evaluation DD A Mixer 2 Typical RF and LO Leakage at IF Output 0 -10 -20 -30 -40 ...

Page 11

... VCO performance for a particular frequency. For applications where the required LO frequency is above 2GHz it is recommended that the LO buffer current be increased by setting CFG5:LO1_I and CFG5:LO2_I to 1100 (hex value C). 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 Detailed Description ...

Page 12

... The minimum reference frequency that could be used to program a frequency of 2400MHz (using VCO1) is 2400/511, 4.697MHz (approx). 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com according to: ...

Page 13

... The active loop filter maintains the charge pump output voltage in the center of the compliance range, and the op-amp provides a wider VCO tuning voltage range, typical 0V to +2.4V. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 ICP= ICPset*CP_DEF / 31 LF_ACT=TRUE +1 ...

Page 14

... For more information about the mixer port impedances and matching, please refer to the RF205x Family Application Note on Matching Circuits and Baluns. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com DS100630 ...

Page 15

... PLL register bank the LO signal is routed to both mixers. Mode Pin FULLD Bit Low 0 High 0 Low 1 High 1 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 Active PLL Register Bank Active Mixer RF2051 1 2 Both ...

Page 16

... ENX hold time t6 Data setup time t7 Data hold time t8 ENBL setup time t9 ENBL hold time 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com 3-wire bus ENX SCLK SDATA MCU RF2051 ENBL RESETB MODE Hardware ...

Page 17

... The maximum clock speed for a register read is 19.2MHz. A register read therefore takes approximately 1.4us. The address is latched on the rising edge of the clock and the data output on the falling edge. The datagram consists of a single start bit fol- 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 A2 ...

Page 18

... The MODE pin controls which mixer(s) and PLL programming register bank is active. See the PLL and Mixer description sec- tions for details. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com and Bias Block Analogue Block ...

Page 19

... ENABLE device Note: The set-up processes and are explained further below. Additional information on device use and programming can be found on the RF205X family page of the RFMD web site (http://www.rfmd.com/rf205x). The following documents may be particularly helpful: • RF205x Frequency Synthesizer User Guide • ...

Page 20

... Three registers need to be written, taking 3.9us at the maximum clock speed. If the device is used with an active filter in sim- plex operation it will not be necessary to program CFG1 reducing the programming time to 2.6us. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com When setting up the device it is necessary to decide if ...

Page 21

... The coarse tune calibration takes approximately 50us when using a 26MHz reference clock (it will take proportionally longer if a slower clock is used, and vice versa). 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 When setting up the device it is necessary to decide ...

Page 22

... VCOSEL and LODIV bits reducing the register writes to three per path. For an example on how to determine the integer and fractional parts of the synthesizer PLL division ratio please refer to the detailed description of the PLL on page 12. 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Set operating frequencies ...

Page 23

... RB1 R 1C LOCK RB2 R 1D RB3 R 1E RSM_STATE TEST R 1F TEN 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 Programming Registers Data TVCO PDP LF_ACT MIX1_VB MIX2_IDD MIX2_VB TKV2 XO_CT XO_I2 XO_I1 XO_CR_S ...

Page 24

... Mixer 2 voltage bias KV_RNG 1 Sets accuracy of voltage measurement during KV calibration: 0=8bits, 1=9bits 3 NBR_CT_AVG 1 8 Number of averages during CT cal NBR_KV_AVG 0 Number of averages during KV cal 0 0 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Function Function DS100630 ...

Page 25

... Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 Function Function Reference divider, divide by 2 (010 (111) when reference divider is enabled Reference divider enabled=0, divider bypass (divide by 1)=1 Crystal oscillator coarse tune (approximately 0.5pF steps from 8pF to 16pF) Crystal oscillator current setting Crystal oscillator additional fixed capacitance (approximately 0 ...

Page 26

... Local oscillator Path2 current setting T_PH_ALGN 0 0 Phase alignment timer CFG6 (O5h) - Start-up Timer # Bit Name Default 15 SU_WAIT 0 0 Crystal oscillator settling timer 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Function Function DS100630 ...

Page 27

... If P1_KV_EN=11 this value sets charge pump current during KV compensation only PLL1x1 (09h) - MSB of Fractional Divider Ratio # Bit Name Default 15 P1_NUM_MSB 0 6 Path 1 VCO divider numerator value, most significant 16 bits 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 RF2051 Function Function ...

Page 28

... PLL1x3 (0Bh) - Integer Divider Ratio and VCO Current # Bit Name Default 15 P1_N 0 2 Path 1 VCO divider integer value P1_VCOI 0 Path 1 VCO bias setting: 000=minimum value, 111=maximum value 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Function Function DS100630 ...

Page 29

... Path 1 course tuning voltage setting when performing course tuning calibration. Default value is 16. Change to 12 when using VCO1 for frequencies above 2.2GHz 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 RF2051 Function Function ...

Page 30

... If P2_KV_EN=11 this value sets charge pump current during KV compensation only PLL2x1 (11h) - MSB of Fractional Divider Ratio # Bit Name Default 15 P2_NUM_MSB 0 6 Path 2 VCO divider numerator value, most significant 16 bits 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Function Function DS100630 ...

Page 31

... PLL2x3 (13h) - Integer Divider Ratio and VCO Current # Bit Name Default 15 P2_N 0 2 Path 2 VCO divider integer value P2_VCOI 0 Path 1 VCO bias setting: 000=minimum value, 111=maximum value 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 RF2051 Function Function ...

Page 32

... P2_CT_V 1 Path 2 course tuning voltage setting when performing course tuning calibration. Default value is 16. Change to 12 when using VCO1 for frequencies above 2.2GHz 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Function Function DS100630 ...

Page 33

... Setting of GPO4 when path 2 is active, used internally only CHIPREV (19h) - Chip Revision Information # Bit Name Default 15 PARTNO 0 0 RFMD Part number for device REVNO X X Part revision number 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 RF2051 Function Function ...

Page 34

... X X The VCO voltage measured at the start of a VCO gain calibration V1_CAL X X The VCO voltage measured at the end of a VCO gain calibration 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Function Function DS100630 ...

Page 35

... Set charge pump to pump down, 0=normal operation 1=pump down 9 FNZ 0 0=normal operation, 1=fractional divider modulator disabled 8 LDO_BYP 0 On chip low drop out regulator bypassed 7 TSEL DACTEST 0 DAC test 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 RF2051 Function Function ...

Page 36

... MODE 21 22 C34 HDR_2X12 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com Evaluation Board Evaluation Board Schematic Loop Filter Loop Filter Component Values Component 60 kHz Active Loop Filter R19 DNI Designator (As Fitted on Evaluation Board k ...

Page 37

... Board Thickness 0.040”, Board Material FR-4 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 Evaluation Board Layout Board Size 2.5”x2.5” RF2051 ...

Page 38

... RF2051 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com DS100630 ...

Page 39

... Support and Applications Information Application notes and support material can be downloaded from the product web page: www.rfmd.com/rf205x. Part Number RF2051 RF2051SB RF2051SR RF2051TR7 RF2051TR13 DK2051 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com. DS100630 ...

Page 40

... RF2051 7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com DS100630 ...

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