adl5385 Analog Devices, Inc., adl5385 Datasheet - Page 18

• Manufacturer Part Number: adl5385
• Description: 50 Mhz To 2200 Mhz Quadrature Modulator
• Manufacturer: Analog Devices, Inc.

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
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
ADF4360-0
ADF4360-1
ADF4360-2
ADF4360-3
ADF4360-4
ADF4360-5
ADF4360-6
ADF4360-7
ADF4360-8
Frequency F
550
1200
3000
4000
550
1200
3000
Output Frequency Range (MHz)
2400/2725
2050/2450
1850/2150
1600/1950
1450/1750
1200/1400
1050/1250
350/1800
65/400
IN
(MHz)
@ 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
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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
Part
AD9709
AD9761
AD9763
AD9765
AD9767
AD9773
AD9775
AD9777
AD9776
AD9778
AD9779
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
Part
AD8345
AD8346
AD8349
ADL5390
ADL5370
ADL5371
ADL5372
ADL5373
ADL5374
AD8347
AD8348
AD8340
AD8341
Mod/Demod
Mod
Mod
Mod
Mod
Mod
Mod
Mod
Mod
Mod
Demod
Demod
Vector Mod
Vector Mod
Resolution (Bits)
8
10
10
12
14
12
14
16
12
14
16
20 to 2400
Frequency
Range (MHz)
140 to 1000
800 to 2500
700 to 2700
300 to 1000
700 to 1300
1600 to 2400
2300 to 3000
3000 to 4000
800 to 2700
50 to 1000
700 to 1000
1500 to 2400
Update Rate
(MSPS Minimum)
125
40
125
125
125
160
160
160
1000
1000
1000
Comments
External Quadrature