ADRF6602ACPZ-R7 Analog Devices Inc, ADRF6602ACPZ-R7 Datasheet - Page 28

• Manufacturer Part Number: ADRF6602ACPZ-R7
• Manufacturer: Analog Devices Inc

Specifications of ADRF6602ACPZ-R7

• Lead Free Status / Rohs Status: Compliant

ADRF6602
EVALUATION BOARD CONFIGURATION OPTIONS
Table 10.
Component
S1, R55, R56, R33
LO IN/OUT
SMA Connector
REFIN
SMA Connector
REFOUT
SMA Connector
CP Test Point
R37, C14, R9, R10,
C15, C13, R65, C40
R11, R12
R62, R63, VTUNE
SMA Connector
R2
RFIN SMA Connector
T3
Description
LO select. Switch and resistors to ground the LODRV_EN pin. The LODRV_EN pin setting, in
combination with internal register settings, determines whether the LOP and LON pins
function as inputs or outputs (see the LO Selection Logic section for more information).
LO input/output. An external 1× LO or 2× LO can be applied to this single-ended input
connector.
Reference input. The input reference frequency for the PLL is applied to this connector.
Input impedance is 50 Ω.
Multiplexer output. The REFOUT connector connects directly to the MUXOUT pin. The
on-board multiplexer can be programmed to bring out the following signals: REFIN, 2×
REFIN, REFIN/2, and REFIN/4; temperature sensor output voltage; and lock detect indicator.
Charge pump test point. The unfiltered charge pump signal can be probed at this test
point. Note that the CP pin should not be probed during critical measurements such as
phase noise.
Loop filter. Loop filter components.
Loop filter return. When the internal VCO is used, the loop filter components should be
returned to Pin 40 (DECLVCO) by installing a 0 Ω resistor in R12. When an external VCO is used,
the loop filter components can be returned to ground by installing a 0 Ω resistor in R11.
Internal vs. external VCO. When the internal VCO is enabled, the loop filter components are
connected directly to the VTUNE pin (Pin 39) by installing a 0 Ω resistor in R62. To use an
external VCO, R62 should be left open. A 0 Ω resistor should be installed in R63, and the
voltage input of the VCO should be connected to the VTUNE SMA connector. The output of
the VCO is brought back into the PLL via the LO IN/OUT SMA connector.
R
RF input. The RF input signal should be applied to the RFIN SMA connector. The RF input of
the ADRF6602 is ac-coupled, so no bias is necessary.
IF output. The differential IF output signals from the ADRF6602 (IFP and IFN) are converted
to a single-ended signal by T3.
SET
pin. This pin is unused and should be left open.
Rev. C | Page 28 of 32
Default Condition/
Option Settings
S1 = R55 = open
(not installed),
R56 = R33 = 0 Ω,
LODRV_EN = 0 V
LO input
Lock detect
R12 = 0 Ω (0402),
R11 = open (0402)
R62 = 0 Ω (0402),
R63 = open (0402)
R2 = open (0402)
R3 = R23 = open (0402)