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This document describes the differences between Fixture Module compatibility with Cassini 16, Large/Small Cassini and RI7100A. It is particularly useful for looking up how to replace the functionality of a fixture module with limited availability or when upgrading to Cassini 16. For Cassini 16, some Fixture Module functionality has been replaced by functionality provided by a TIM. Compared with Fixture Modules, TIMs provide increased performance and, unlike a fixture module, one instrument can be used between multiple Fixtures. This document is updated as needed, subject to change without notice.



Current available RIKs: http://roos.com/FixtureModules

There are now 3 generations of Fixture Carrier and Module: RIFL, Active and Passive. The Carrier PCB is installed in the Fixture and connects the Modules to the Cassini EPC through RIFL. RILF Fixture Modules require a RIFL carrier are controlled directly by the RIFL bus and function as any other Instrument in a testplan and must be configured in the Fixture Def with the Device Connection Editor, no manual coding required and resources operate at full RIFL speed. Active Fixture Modules require an Active carrier and appear as instruments in the testplan, but can only operate as fast as the RIFL to C-bit conversion built into the carrier board (about 10x slower than RIFL) and may require 5v control logic not available on RIFL carriers. Active Fixture Modules that are also compatible with RIFL 3.3v control are listed as "Active/RIFL" below. Passive Fixture Modules must be manually controlled in the testplan with C-bits and can be used on any type of carrier. Fixture Modules listed as "N/A" are completely passive and do not require power or control to operate and can be mounted anywhere within the Fixture.

C-Bits are supplied directly from the Testhead ONLY when a RIFL or Active Carrier is not present. When RIFL/Active carriers are connected, the C-Bits are provided by the carrier directly and must be physically connected.

The carrier is dependant on the Infrastructure (Cassini 16 vs Large/Small Cassini vs RI7100A) and the version of the Sides and Top Plate. New designs should use the Pod Carrier (RIK0303A) while RIFL Carriers will be available for pre-existing designs.

Fixture Carrier Support by System Model:
Cassini 16 - Pod Carrier (RIK0303A), RIFL Carrier, RIK0200A 13 Module for Matrix Top Plate (RIK0163), or RIK0157A+RIK0236A 1x5 Carriers for custom top plates/soft dock
RI7100A - Passive & Active Carriers (limited availability): 12RF RIK0014B, RIK0084A 20RF, or RIK0160A LG/SM Cassini Only (not Cassini 16)
RI8556A/RI8557A Small/Large Cassini (RI7100C) - Active Carrier (limited availability), RIK0160A
NOTE: Active carriers and their modules are "limited availability" and should not be considered in new designs, use of Cassini 16 and RIFL carriers is strongly recommended.

Carrier Support by Interface Types:
Pod - Pod Carrier (RIK0303A) is fast as RIFL, but requires "pod" boards that can hold up to two Fixture Modules or may be it's own PCB.
RIFL - RIK0200A Cassini 16, RIK0175A 1x5 (RIK0236A Expansion 1x5), 3.3v on control lines vs 5v (so not compatible with some "Active" Modules.
Active - RI7100A 12RF RIK0014B, RIK0084A RI7100A 20RF, RIK0160A LG/SM Cassini Only (not Cassini 16)
Passive - Not Available (see RIFL), powered by module slot, "manual" control with c-bits
N/A - attach with double sided tape, "manual" control with c-bits
Any - Module can function in both Active or Passive (with c-bits) modes, RIFL carrier uses passive (c-bit) control
NOTE: RIFL is only supported on Cassini 16, LG/SM Cassini only supports Active

Fixture Modules:

Link

RIK

Description

Replaced By

Limited Availability

Recommended

Instrument/Module

Carrier Type

New Dependancies - Functions - Reason

Product Catalog

RIK0006A

Switch 2.5 GHz Dual SPDT (2 ea)

RIK0220A

x



n/a


Product Catalog

RIK0006B

2.5 GHz RF Switch Modules Dual SPDT (2 ea)

RIK0220A

x



n/a


Product Catalog

RIK0015A

Differential I/O Module Kit (1 Module)

RIK0087A

x



Passive


Product Catalog

RIK0017A

High Speed Serial Digital Module Kit (1 Module)

RI8535B (RIK0127A)

x


I

Active

Cassini 16 - Use RI8535B FSPU Digital TIM instead with RIK0146A Digital Block

Product Catalog

RIK0026B

6 GHz RF Switch Modules Dual SPDT (2 ea)

RIK0220A

x



Active


Product Catalog

RIK0039A

High Voltage Buffer Module (1 Module)

RI8589

x



Any

Use RI8589 FET Pulser TIM

Product Catalog

RIK0049A

Delay Line Discriminator Module

RI8575

x



Active

Use RI8575 Phase Noise Measure TIM

Product Catalog

RIK0053A

Fixture Cbits Controller (2 Modules)

RIK0053B

x



Active

Use revB, includes 1 module per kit

Product Catalog

RIK0053B

Fixture Cbits Controller (1 Modules)

Current


x

M

Any


Product Catalog

RIK0054B

Divider 3 GHz/ SPDT Switch (1 Module)

Current


x

M

Any


Product Catalog

RIK0055A

SPDT High Pass Filter (1 Module)

RIK0220A




Active

(may work on RIFL)

Product Catalog

RIK0056B

Switch 6 GHz Dual SP4T (1 Module)

RIK0218A

x



Active


Product Catalog

RIK0058A

Switch 6 GHz Dual SPDT (2 Modules)

RIK0220A (RIK0058B)

x



Active

Use revB, includes 1 module per kit; Cassini 16 - use RIK0220A

Product Catalog

RIK0058B

Switch 6 GHz Dual SPDT (1 Module)

RIK0220A




Active/RIFL


Product Catalog

RIK0059A

2.5 GHz Fixture Step Attenuator / LNA

RIK0254A

x



Active

Replaced with 20 GHz Attenuator (requires controller board and RIFL)

Product Catalog

RIK0077A

High BW Diff. I/O Buffer Module

RIK0087A

x



Active


Product Catalog

RIK0077B

Dual Fixture Diff Amp, HS, w/o Comm Mode Cont.

RIK0087A

x



Active


Product Catalog

RIK0087A

Advanced High BW Diff. I/O Buffer Module




I

Active/RIFL

Includes common mode adjustable, FixtureDiffAmp1 instrument

Product Catalog

RIK0088A

Fixture MUX, 1x32, 2x16 (1 Module)





Active/RIFL


Product Catalog

RIK0089A

1x8 Terminated Switch Module (1 Module)

Not Replaced

x



Active


Product Catalog

RIK0092A

Fixture Step Attenuator, 0-36db, 4 Step





Active/RIFL


Product Catalog

RIK0095A

AC Switch Matrix 8x24

RIK0095B

x



Active


Product Catalog

RIK0095B

AC Switch Matrix 8x24





Active/RIFL


Product Catalog

RIK0105A

High Pass Filter (1 Module)


x



Active


Product Catalog

RIK0127A

High Speed Digital Scan Module Kit

RI8535B TIM




Active

Cassini 16 - Use RI8535B FSPU Digital TIM instead with RIK0146A Digital Block
Use RIK0148A for DIB launch

Product Catalog

RIK0132A

Coax Driver Buffer Module

Current


x


Passive


Product Catalog

RIK0147A

Digital Pogo DUT Interface Fixture Module 40 pins

RI8535B TIM




Active, RIFL

Cassini 16 - Use RI8535B FSPU Digital TIM instead with RIK0146A Digital Block
Use RIK0148A for DIB launch

Product Catalog

RIK0203A

Dual SP4T RF Switch DC - 20GHz (Single Module)

RIK0203B

x



Active


Product Catalog

RIK0203B

Dual SP4T RF Switch DC - 20GHz (Single Module)

Current


x

M

RIFL


Product Catalog

RIK0218A

6 GHz High TOIP SP4T Dual Switch (1 Module)

Current


x

M

RIFL


Product Catalog

RIK0219A

VCC Noise Filter

Current


x


RIFL


Product Catalog

RIK0220A

Dual SPDT High TOIP 6GHz Switch (1 Module)

Current


x

-

RIFL


Product Catalog

RIK0250A

Hi IP3 SP4T Pin Switch, Absorptive (1 Module)

Current


x

-

RIFL

RIK0255A and RIK0251A or RIK0252A needed for control and mounting

Product Catalog

RIK0253A

Hi IP3 SP4T Pin Switch, Reflective (1 Module)

Current


x

-

RIFL

RIK0255A and RIK0251A or RIK0252A needed for control and mounting

Product Catalog

RIK0254A

Attenuator, Fixture 20 GHz 31dB in 1dB steps

Current


x

-

RIFL

RIK0255A and RIK0251A or RIK0252A needed for control and mounting

Product Catalog

RIK0255A

Driver, Fixture 20 GHz Switch/Atten

Current


x

M

RIFL

Required for controlling RIK0250, RIK253A, RIK0254A switch and/or atten modules

Product Catalog

RIK0290B

C-Bits Fixture Pod

Current


x

-

Pod


Product Catalog

RIK0291A

RF Relay Driver Fixture Pod

Current


x

I

Pod


Product Catalog

RIK0294A

Mux + Buffer Fixture Pod

Current


x

I

Pod


Product Catalog

RIK0295A

Dual Module Fixture Pod

Current


x

-

Pod

Items listed with "limited availability" will have longer lead times and will be more expensive and in some rare cases may no longer be available.

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