ADL5385(Rev0) View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

ADL5385
(Rev.:Rev0)

50 MHz to 2200 MHz Quadrature Modulator

Analog Devices 

ADL5385

LO GENERATION USING PLLs

Analog Devices has a line of PLLs that can be used for

generating the LO signal. Table 4 lists the PLLs together with

their maximum frequency and phase noise performance.

Table 4. PLL Selection Table

Model

ADF4110

ADF4111

ADF4112

ADF4113

ADF4116

ADF4117

ADF4118

Frequency FIN (MHz)

550

1200

3000

4000

550

1200

3000

@ 1 kHz Phase Noise

dBc/Hz, 200 kHz PFD

−91 @ 540 MHz

−87@ 900 MHz

−90 @ 900 MHz

−91 @ 900 MHz

−89 @ 540 MHz

−87 @ 900 MHz

−90 @ 900 MHz

The ADF4360 comes as a family of chips, with nine operating

frequency ranges. One can be chosen depending on the local

oscillator frequency required. While the use of the integrated

synthesizer might come at the expense of slightly degraded

noise performance from the ADL5385, it can be a cheaper

alternative to a separate PLL and VCO solution. Table 5 shows

the options available.

Table 5. ADF4360 Family Operating Frequencies

Model

Output Frequency Range (MHz)

ADF4360-0

2400/2725

ADF4360-1

2050/2450

ADF4360-2

1850/2150

ADF4360-3

1600/1950

ADF4360-4

1450/1750

ADF4360-5

1200/1400

ADF4360-6

1050/1250

ADF4360-7

350/1800

ADF4360-8

65/400

TRANSMIT DAC OPTIONS

The AD9777 recommended in the previous sections is by no

means the only DAC that can be used to drive the ADL5385.

There are other appropriate DACs depending on the level of

performance required. Table 6 lists the dual Tx-DACs that

Analog Devices offers.

Table 6. Dual Tx—DAC Selection Table

Update Rate

Part

Resolution (Bits) (MSPS Minimum)

AD9709 8

125

AD9761 10

40

AD9763 10

125

AD9765 12

125

AD9767 14

125

AD9773 12

160

AD9775 14

160

AD9777 16

160

AD9776 12

1000

AD9778 14

1000

AD9779 16

1000

All DACs listed have nominal bias levels of 0.5 V and use the

same DAC-modulator interface shown in Figure 31.

MODULATOR/DEMODULATOR OPTIONS

Table 7 lists other Analog Devices modulators and

demodulators.

Table 7. Modulator/Demodulator Options

Frequency

Part

Mod/Demod Range (MHz) Comments

AD8345 Mod

140 to 1000

AD8346 Mod

800 to 2500

AD8349 Mod

700 to 2700

ADL5390 Mod

20 to 2400 External Quadrature

ADL5370 Mod

300 to 1000

ADL5371 Mod

700 to 1300

ADL5372 Mod

1600 to 2400

ADL5373 Mod

2300 to 3000

ADL5374 Mod

3000 to 4000

AD8347 Demod

800 to 2700

AD8348 Demod

50 to 1000

AD8340 Vector Mod 700 to 1000

AD8341 Vector Mod 1500 to 2400

Rev. 0 | Page 18 of 24

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