ADL5380ACPZ-R7 datasheet(33/36 Pages) AD

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ADL5380

Rev. 0 | Page 33 of 36

Table 5. Evaluation Board Configuration Options

Component

Description

Default Condition

VPOSx, GNDx

Power Supply and Ground Vector Pins.

Not applicable

R10x, R12x,

R19x

Power Supply Decoupling. Shorts or power supply decoupling resistors.

R10x, R12x, R19x = 0 Ω (0603)

C6x to C11x

The capacitors provide the required dc coupling up to 6 GHz.

C6x, C7x, C8x = 100 pF (0402),

C9x, C10x, C11x = 0.1 μF (0603)

P1x, R11x,

R9x, R1x

Device Enable. When connected to VS, the device is active.

P1x, R9x = DNI, R1x = DNI,

R11x = 0 Ω

R23x

Adjust Pin. The resistor value here sets the bias voltage at this pin and optimizes

third-order distortion.

R23B = 1.5 kΩ (0603),

R23A = 200 Ω (0603)

C1x to C5x,

C12x

AC Coupling Capacitors. These capacitors provide the required ac coupling

from 400 MHz to 4 GHz.

C1x, C4x = DNI,

C2x, C3x, C5x, C12x = 100 pF (0402)

R2x to R7x,

R13x to R18x

Single-Ended Baseband Output Path. This is the default configuration of the

evaluation board. R13x to R18x are populated for appropriate balun interface.

R2x to R5x are not populated. Baseband outputs are taken from QHI and IHI. The

user can reconfigure the board to use full differential baseband outputs. R2x to R5x

provide a means to bypass the 9:1 TCM9-1 transformer to allow for differential base-

band outputs. Access the differential baseband signals by populating R2x to R5x

with 0 Ω and not populating R13x to R18x. This way the transformer does not need

to be removed. The baseband outputs are taken from the SMAs of QHI, QLO, IHI,

and ILO. R6x and R7x are provisions for applying a specific differential load across

the baseband outputs

R2x to R7x = open,

R13x to R18x = 0 Ω (0402)

T2x, T4x

IF Output Interface. TCM9-1 converts a differential high impedance IF output to

a single-ended output. When loaded with 50 Ω, this balun presents a 450 Ω load

to the device. The center tap can be decoupled through a capacitor to ground.

T2x, T4x = TCM9-1, 9:1 (Mini-Circuits)

C15x, C16x

Decoupling Capacitors. C15x and C16x are the decoupling capacitors used to reject

noise on the center tap of the TCM9-1.

C15x, C16x = 0.1 μF (0402)

T1x

LO Input Interface. A 1:1 RF balun that converts the single-ended RF input to

differential signal is used.

T1B = TC1-1-13, 1:1 (Mini-Circuits)

for operation <3 GHz,

T1A = Johanson Technology

3600BL14M050 for operation from

3 GHz to 4 GHz, Johanson Technology

5400BL15K050 for operation from

4900 MHz to 5800 MHz

T3x

RF Input Interface. A 1:1 RF balun that converts the single-ended RF input to

differential signal is used.

T3B = TC1-1-13, 1:1 (Mini-Circuits)

for operation <3 GHz,

T3A = Johanson Technology

3600BL14M050 for operation from

3 GHz to 4 GHz, Johanson Technology

5400BL15K050 for operation from

4900 MHz to 5800 MHz

ADL5380ACPZ-R7 数据表(PDF) 33 Page - Analog Devices

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