ADMV4420ACPZ-R2 datasheet(58/61 Pages) AD

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ADMV4420

Data Sheet

Rev. A | Page 58 of 61

CPOUT

VTUNE

AGND

R11

0Ω

1.5kΩ

680Ω

C25

6800pF

C26

220pF

C24

470pF

Figure 131. Recommended Integer Mode Loop Filter Schematic

Table 47. Recommended Integer Mode Loop Filter

Components for Phase Frequency Detector = 50 MHz

Component

Value

C24

470 pF (0402)

C25

6800 pF (0402)

C26

220 pF (0402)

680 Ω (0402)

1.5 kΩ (0402)

R11

0 Ω (0402)

Table 48. Bill of Materials for ADMV4420-EVALZ

Reference Designator

Description

C1, C3, C14, C32, C33, C35

Power supply decoupling and LDO decoupling capacitor, 10 μF, 0603

C2, C10, C16, C18, C30

Power supply decoupling and LDO decoupling capacitor, 10 pF, 0402

C5, C6

Crystal loading capacitors

C7, C8, C11, C12, C13, C22, C27

Power supply decoupling and LDO decoupling capacitor, 0.1 μF, 0402

C15, C19, C20, C23, C29

Power supply decoupling and LDO decoupling capacitor, 100 pF, 0402)

C4, C34

Power supply decoupling and LDO decoupling capacitor, 10 μF, 0402

Power supply decoupling and LDO decoupling capacitor, 4.7 μF, 0402

C17, C21

AC coupling capacitor, 0.01 μF, 0402

C24

Loop filter capacitor, 470 pF, 0402

C25

Loop filter capacitor, 6800 pF, 0402

C26

Loop filter capacitor, 220 pF, 0402

CS, ENBL0, ENBL1, MUXOUT, SCLK, SDI, SDO

Test point, yellow

DS1

LED, green

GND1, GND2, GND3

Test point, black

RF connector, SRI, K type, female

RF connector, subminiature version a (SMA), female

System demonstration platform (SDP) connector

RF connector, F type, female

Choke inductor, 51 nH, 0402

Heat sink

External reference input matching, 49.9 Ω, 0402

R11, R13, R14, R15, R16

Resistor, 0 Ω, 0402

R19, R29

Resistor, 1 kΩ, 0402

R25, R27

Resistor, pull-down, 100 kΩ, 0402

Resistor, loop filter, 680 Ω, 0402

Resistor, loop filter,1.5 kΩ, 0402

K band downconverter with integrated fractional-N PLL and VCO, ADMV4420

Serial EEPROM, 32-bit

VCC5P0, VPOS1, VPOS2, VPOS3, VPOS4

Test point, red

Crystal

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