IC PLL FREQ SYNTHESIZER 20-TSSOP

 

ADF4212BRU

Manufacturer Part NumberADF4212BRU
DescriptionIC PLL FREQ SYNTHESIZER 20-TSSOP
ManufacturerAnalog Devices Inc
TypeClock/Frequency Synthesizer (RF/IF)
ADF4212BRU datasheets
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Specifications of ADF4212BRU

Rohs StatusRoHS non-compliantPllYes
InputCMOSOutputClock
Number Of Circuits1Ratio - Input:output3:1
Differential - Input:outputYes/NoFrequency - Max2.7GHz
Divider/multiplierNo/NoVoltage - Supply2.7 V ~ 5.5 V
Operating Temperature-40°C ~ 85°CMounting TypeSurface Mount
Package / Case20-TSSOPFrequency-max2.7GHz
ADF4213BRU-REEL PDF datasheetADF4212LBRU_PRODUCT_CHANGE PDF datasheet #2
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IF
IN
OSCILLATOR
REF
IN
CLOCK
24-BIT
DATA
DATA
REGISTER
LE
RF
IN
DGND
RF
Dual RF/IF PLL Frequency Synthesizers
ADF4210/ADF4211/ADF4212/ADF4213
GENERAL DESCRIPTION
The ADF4210/ADF4211/ADF4212/ADF4213 is a dual frequency
synthesizer that can be used to implement local oscillators (LO)
in the upconversion and downconversion sections of wireless
receivers and transmitters. They can provide the LO for both
the RF and IF sections. They consist of a low-noise digital PFD
(Phase Frequency Detector), a precision charge pump, a pro-
grammable reference divider, programmable A and B Counters
and a dual-modulus prescaler (P/P + 1). The A (6-bit) and B
(12-bit) counters, in conjunction with the dual modulus prescaler
(P/P + 1), implement an N divider (N = BP + A). In addition,
the 14-bit reference counter (R Counter), allows selectable
REFIN frequencies at the PFD input. A complete PLL (Phase-
Locked Loop) can be implemented if the synthesizer is used with
an external loop filter and VCO (Voltage Controlled Oscillators).
Control of all the on-chip registers is via a simple 3-wire interface.
The devices operate with a power supply ranging from 2.7 V to
5 V and can be powered down when not in use.
FUNCTIONAL BLOCK DIAGRAM
V
1
V
2
V
1
V
2
DD
DD
P
P
12-BIT IF
B-COUNTER
IF
PRESCALER
8-BIT IF
A-COUNTER
14-BIT IF
R-COUNTER
SDOUT
14-BIT RF
R-COUNTER
12-BIT RF
B-COUNTER
RF
PRESCALER
6-BIT RF
ADF4210/ADF4211/
A-COUNTER
ADF4212/ADF4213
AGND
DGND
DGND
AGND
RF
IF
IF
IF
R
SET
REFERENCE
PHASE
COMPARATOR
CHARGE
CP
IF
PUMP
IF CURRENT
SETTING
IF
LOCK
DETECT
IFCP3 IFCP2 IFCP1
OUTPUT
MUXOUT
MUX
RFCP3 RFCP2 RFCP1
RF
LOCK
IF CURRENT
DETECT
SETTING
CHARGE
CP
RF
PUMP
PHASE
COMPARATOR
REFERENCE
R
SET
FL
FL
SWITCH
O
O

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ADF4212BRU Summary of contents

  • Page 1

    IF IN OSCILLATOR REF IN CLOCK 24-BIT DATA DATA REGISTER DGND RF Dual RF/IF PLL Frequency Synthesizers ADF4210/ADF4211/ADF4212/ADF4213 GENERAL DESCRIPTION The ADF4210/ADF4211/ADF4212/ADF4213 is a dual frequency synthesizer that can be used to implement local oscillators (LO) ...

  • Page 2

    ADF4210/ADF4211/ADF4212/ADF4213–SPECIFICATIONS ( 10 10 unless otherwise noted.) A MIN MAX P arameter RF/IF CHARACTERISTICS ( Input Frequency ( ...

  • Page 3

    Parameter POWER SUPPLIES (RF + IF) DD ADF4210 ADF4211 ADF4212 ADF4213 I (RF Only) DD ADF4210 ADF4211 ADF4212 ADF4213 I (IF Only) DD ADF4210 ADF4211 ADF4212 ADF4213 ...

  • Page 4

    ... ADF4210BRU –40°C to +85°C ADF4210BCP –40°C to +85°C ADF4211BRU –40°C to +85°C ADF4211BCP –40°C to +85°C ADF4212BRU –40°C to +85°C ADF4212BCP –40°C to +85°C ADF4213BRU –40°C to +85°C ADF4213BCP –40°C to +85°C Contact the factory for chip availability. ...

  • Page 5

    Pin Number TSSOP Mnemonic Function Power Supply for the RF Section. Decoupling capacitors to the ground plane should be placed as DD close as possible to this pin. V the same potential ...

  • Page 6

    ADF4210/ADF4211/ADF4212/ADF4213 –Typical Performance Characteristics FREQUENCY S REAL S IMAG FREQUENCY 11 11 50000000.0 0.955683 –0.052267 2150000000.0 150000000.0 0.956993 –0.112191 2250000000.0 250000000.0 0.935463 –0.185212 2350000000.0 350000000.0 0.919706 –0.252576 2450000000.0 450000000.0 0.871631 –0.323799 2550000000.0 550000000.0 0.838141 –0.350455 2650000000.0 650000000.0 0.799005 –0.408344 2750000000.0 ...

  • Page 7

    REFERENCE –10 LEVEL = –5.7dBm I = 5mA CP PFD FREQUENCY = 200kHz –20 LOOP BANDWIDTH = 35kHz –30 RES. BANDWIDTH = 1kHz VIDEO BANDWIDTH = 1kHz –40 SWEEP = 4.2 SECONDS –50 ...

  • Page 8

    ADF4210/ADF4211/ADF4212/ADF4213 3V REFERENCE – 5mA LEVEL = –17.2dBm CP PFD FREQUENCY = 1MHz –20 LOOP BANDWIDTH = 100kHz –30 RES. BANDWIDTH = 1kHz VIDEO BANDWIDTH = 1kHz –40 SWEEP = 13 SECONDS –50 ...

  • Page 9

    TEMPERATURE – C CIRCUIT DESCRIPTION REFERENCE INPUT SECTION The reference input stage is shown below in Figure 2. SW1 and SW2 are normally-closed switches. SW3 is normally-open. When power-down is ...

  • Page 10

    ADF4210/ADF4211/ADF4212/ADF4213 PHASE FREQUENCY DETECTOR (PFD) AND CHARGE PUMP The PFD takes inputs from the R counter and N counter and produces an output proportional to the phase and frequency difference between them. Figure simplified schematic. The PFD ...

  • Page 11

    IF CP CURRENT SETTING DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 R15 CP2 CP1 CP0 IF PRESCALER DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 ...

  • Page 12

    ADF4210/ADF4211/ADF4212/ADF4213 IF CP CURRENT SETTING DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 CP2 CP1 CP0 CHARGE PUMP OUTPUT 0 NORMAL 1 THREE-STATE P12 P11 FROM RF ...

  • Page 13

    IF PRESCALER DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 B12 B11 B10 PRESCALER 16/ 32/ 64/ POWER-DOWN 0 ...

  • Page 14

    ADF4210/ADF4211/ADF4212/ADF4213 RF CP CURRENT SETTING DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 P12 P11 P10 P9 CP2 CP1 CP0 P10 CHARGE PUMP OUTPUT 0 NORMAL 1 THREE-STATE FROM IF R LATCH ...

  • Page 15

    RF PRESCALER DB23 DB22 DB21 DB20 DB19 DB18 DB17 DB16 DB15 DB14 P17 P16 P15 P14 B12 B11 B10 B9 P15 P14 PRESCALER 16/ 32/ 64/65 P16 RF POWER-DOWN 0 DISABLE ...

  • Page 16

    ADF4210/ADF4211/ADF4212/ADF4213 PROGRAM MODES Table III and Table V show how to set up the Program Modes in the ADF421x family. The following should be noted and RF Analog Lock Detect indicate when the PLL is in lock. When ...

  • Page 17

    RF PROGRAM MODES Table III and Table V show how to set up the Program Modes in the ADF421x family. RF Charge Pump Currents RFCP2, RFCP1, RFCP0 program current setting for the RF charge pump. See Table V. PROGRAMMABLE RF ...

  • Page 18

    ADF4210/ADF4211/ADF4212/ADF4213 1000pF 1000pF DD DD FREF REF CLK DATA LE ADF4213 in wide-band applications both of these parameters have a much greater variation. In Figure 8, for example, we have ...

  • Page 19

    PCB Guidelines for Chip Scale Package The lands on the chip scale package (CP-20), are rectangular. The printed circuit board pad for these should be 0.1 mm longer than the package land length and 0.05 mm wider than the package ...

  • Page 20

    ADF4210/ADF4211/ADF4212/ADF4213–Revision History Location Data Sheet changed from REV REV. A. Changes to Test Conditions/Comments section of Specifications . . . . . . . . . . . . . . . . . . . . . ...

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