Screening and Qualification Inspection for Coaxial Attenuators

Size: px

Start display at page:

Download "Screening and Qualification Inspection for Coaxial Attenuators"

Brianne Sherman
5 years ago
Views:

1 Screening and Qualification Inspection for Coaxial Attenuators Level S, Based on MIL-DTL-3933 THIS SPECIFICATION AND/OR THE SUBJECT MATTER IS RESTRICTED SOLELY FOR THE USE OF EMC TECHNOLOGY, FLORIDA RF LABS AND ITS APPROVED VENDORS. ESTA ESPECIFICACIÓN Y/O SU CONTENIDO ESTÁ RESTRINGIDO PARA USO UNICAMENTE DE EMC TECHNOLOGY, FLORIDA RF LABS Y SUS PROVEEDORES APROBADOS. REV. EN DESCRIPTION Initial Release A Add Fixed devices and change to generic TP, add three frequencies to test sample lot B Removed sequences and added for screening, qualification inspection & Data and samples requirements C Added excel charts to screening and qualification inspection as well as additional reference proceding appendix TP- (Excel linked Appendix) 1 of 13 REV. B

2 1.0 SCOPE Quality Conformance Inspection shall consist of Screening and Qualification Inspection based on MIL-DTL All samples MUST pass Screening before being subjected to Qualification Inspection. The first Qualification sample lot shall consist of 3 different attenuator values of low, middle and high attenuation values (e.g. 3dB, 6dB & 10dB) divided into equal number of devices in each test Group and Subgroup. Subsequent Qualification Inspection lots shall consist of the number of samples per attenuation value described in this document. 2.0 SCREENING (100% of test lots) 2.1 Thermal Shock: Perform thermal shock test in accordance with MIL-STD-202, Method 107, Condition B, with the exception of temperature extremes shall be -55 C and +125 C, the number of cycles shall be ten (10), and each cycle duration shall be fifteen (15) minutes. 2.2 Pre- Power Conditioning Electricals: Measure and record DC resistance from center conductor to center conductor and center conductor to case Start Date 4/10/2014 End Date 4/11/2014 Lot#: & DCR 42UW03.00FQS RAB RAC RBC Value 3 db Tolerance 0.5 db UW06.00FQS SN RAB RAC RBC Value 6 db Tolerance 0.5 db UW10.00FQS SN RAB RAC RBC Value Tolerance 0.6 db TP- (Excel linked Appendix) REV. B 2 of 13

3 2.2.2 Measure VSWR at each end (input and output) at 1.0 GHz to max product frequency in 1 GHz increments. Start Date 4/10/2014 End Date 4/11/2014 Lot#: & Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 : Acceptance Limits: In accordance with control drawing requirements Measure and record Attenuation between ends at DC and at 1.0 GHz to max product frequency in 1 GHz increments. 42UW03.00FQS DCA UW06.00FQS DCA UW10.00FQS DCA Acceptance Limits: In accordance with control drawing requirements. TP- (Excel linked Appendix) REV. B 3 of 13

4 2.3 Power Conditioning: Each end of the attenuator (input and output) shall be subjected to a direct current power level equal to the specified average power at a temperature of 75 ±5 C for a period of 48 +/-3 hours at EACH end for a total of 96 hours. Attenuators shall be terminated in a 50 load. NOTE: Direct current power level is equal to the applied voltage times current. 2.4 Post Power Conditioning Electricals: Repeat step (DC resistance). Start Date 4/25/2014 End Date 4/29/2014 Lot#: & DCR 42UW03.00FQS RAB RAC RBC Δ RAB Δ RAB % Δ RAC Δ RAC % Δ RBC Δ RBC % % % % Value 3 db % % % Δ RAB +/- 2.00% Ω % % % Δ RAC +/- 2.00% Ω % % % Δ RBC +/- 2.00% Ω % % % % % % % % % % % % % % % % % % 42UW06.00FQS SN RAB RAC RBC Δ RAB Δ RAB % Δ RAC Δ RAC % Δ RBC Δ RBC % Value 6 db % % % Δ RAB +/- 2.00% Ω % % % Δ RAC +/- 2.00% Ω % % % Δ RBC +/- 2.00% Ω % % % % % % % % % % % % % % % % % % % % % 42UW10.00FQS SN RAB RAC RBC Δ RAB Δ RAB % Δ RAC Δ RAC % Δ RBC Δ RBC % Value % % % Δ RAB +/- 2.00% Ω % % % Δ RAC +/- 2.00% Ω % % % Δ RBC +/- 2.00% Ω % % % % % % % % % % % % % % % % % % % % % Acceptance limit: Delta ±2% 0r.25Ω, whichever is greater Repeat step (VSWR) Acceptance limit: Delta ±0.1 TP- (Excel linked Appendix) REV. B 4 of 13

5 Repeat step (Attenuation). 42UW03.00FQS DCA Δ DCA DELTA S11 DELTA S22 42UW03.00FQS 1000 MHz 1000 MHz 1 #VALUE! UW06.00FQS DCA Δ DCA DELTA S11 DELTA S22 42UW06.00FQS 1000 MHz 1000 MHz 1 #VALUE! UW10.00FQS DCA Δ DCA DELTA S11 DELTA S22 42UW10.00FQS 1000 MHz 1000 MHz 1 #VALUE! TP- (Excel linked Appendix) REV. B 5 of 13

6 Acceptance limit: DC Attenuation Delta ±0.2 db, for Reference only, exception due to temp variable parts Percent Defects Allowed (PDA). Calculate the percent of defects from Pre to Post Power Conditioning tests. If the cumulative number of failures exceeds the PDA the entire lot shall be rejected Acceptance limit: 10%. Attenuators that exceed the delta limits shall be considered to have failed and shall be removed from the lot 2.5 Subgroup 1 (Temperature Variable Products only) - Three (3) sample units that have successfully undergone Screening tests. One sample per attenuation value TCA: Measure and record attenuation at DC (0 Hz) and 1.0 GHz to max product frequency in 1 GHz increments, every 20 C over the temperature range -55 C to +125 C Calculate, using linear regression, the slope of the curve Calculate TCA using the following formula: TCA = 25 C Start Date 4/24/2014 End Date 4/25/2014 Lot#: & Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance +/ db Δ DCATolerance +/ db Δ DCATolerance +/ db Acceptance limits: Nominal TCA ±0.001 db/db/ C for DC attenuation. TCA at frequency results are for Reference only. 2.6 Visual and Mechanical Inspection: Verify and record that dimensions marking and workmanship, are in accordance with specification requirements. 3.0 QUALIFICATION INSPECTION (21 SAMPLES-9 PIECES GROUP 1 AND 12 PIECES GROUP 2) Qualification Inspection tests shall be performed on twenty seven (27) samples from a lots which have previously been subjected to and passed, Screening Inspection (9 pieces per value). The Inspection lot shall be divided into two groups. Groups 1 and 2 and 3. Group 1 shall be performed on nine (9) samples (3 pieces per value) and Group 2 shall be performed on twelve (12) samples (4 pieces per value) which must include the three (3) TCA samples from Screening Subgroup1 (1 piece per value). 3.1 Group I - Nine (9) sample units from Screening lot TP- (Excel linked Appendix) REV. B 6 of 13

7 3.1.1 Stability of attenuation with temperature change: Measure attenuation at 1 GHz at 23 ±2 C, at 200mW (23dBm) input power and at both extremes of the operating temperature range -55 C and +100 C. S/O TP Frequency Sensitivty Max REF Only db/db/ghz Test Stage Power Sensitivty Max REF Only db/db/watt Begin Date:5/8/14 Temperature Sensitivy Nom db/db/ C End Date:5/8/14 TCA -3 db/db/c TCA Tolerance (+/-) db/db/c Stability of Atten vs Temperature Change ( 23 dbm Input) C C C 42UW03.00FQS C to -55 C 25 C to 100 C ATTN ATTN ATTN db/db/ C db/db/ C Stability of Atten vs Temperature Change ( 23 dbm Input) C C C 42UW06.00FQS C to -55 C 25 C to 100 C ATTN ATTN ATTN db/db/ C db/db/ C E E E-05 Stability of Atten vs Temperature Change ( 23 dbm Input) C C C 42UW10.00FQS C to -55 C 25 C to 100 C ATTN ATTN ATTN db/db/ C db/db/ C E E E E Acceptance limit: +/-.001dB/dB/ C, for Reference only due to temp variable device and device self-heating Stability of attenuation after thermal shock: Measure and record attenuation at DC and 1.0 GHz to max product frequency in 1 GHz increments Perform thermal shock per MIL-STD-202, Method 107, Condition B Temperature extremes shall be -55 C and +125 C, the number of cycles shall be five (5), and each cycle duration shall be fifteen (15) minutes Measure and record attenuation at 1.0 GHz to max product frequency in 1 GHz increments Acceptance Limit: In accordance with control drawing requirements. TP- (Excel linked Appendix) REV. B 7 of 13

8 3.1.3 Stability of attenuation after vibration and shock: Perform vibration shock in accordance with MIL-STD-202, Method 213, and Condition I. Start Date 6/26/2014 End Date 6/26/2014 Lot#: Test Stage Stability of Attenuation after Vibration and Shock Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance +/ db Δ DCATolerance +/ db Δ DCATolerance +/ db Post Vibration and Shock 42UW03.00FQS DCA Post Vibration and Shock 42UW06.00FQS DCA Post Vibration and Shock 42UW10.00FQS DCA Measure and record attenuation as specified in Acceptance Limit: In accordance with control drawing requirements. TP- (Excel linked Appendix) REV. B 8 of 13

9 3.1.4 Stability of attenuation after peak power: Test only if specified in SCD Subject devices to maximum peak power (DC pulsed) per SCD for 1 hour at each end. Start Date 7/9/2014 End Date 7/9/2014 Lot#: Test Stage Stability of Attenuation after Peak Power Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance +/ db Δ DCATolerance +/ db Δ DCATolerance +/ db Measure and record attenuation as specified in UW03.00FQS Post Peak Power DCA 42UW06.00FQS Post Peak Power DCA 42UW10.00FQS Post Peak Power DCA Acceptance Limit: In accordance with control drawing requirements. TP- (Excel linked Appendix) REV. B 9 of 13

10 3.1.5 Sensitivity of attenuation: Calculate sensitivity of attenuation after change in frequency at 1 GHz and maximum product frequency, change in input power (at the reference power of 1 mw and maximum power of 200 mw, and change in temperature as specified in paragraph of MIL- DTL S/O TP Frequency Sensitivty Max REF Only db/db/ghz Test Stage Power Sensitivty Max REF Only db/db/watt Begin Date 7/9/2014 Temperature Sensitivy Nom db/db/ C End Date 7/11/2014 Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GH 1.25 :1 VSWR GHz 1.25 :1 VSWR GHz 1.25 :1 VSWR G 1.35 :1 VSWR GHz 1.35 :1 VSWR GHz 1.35 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance db Δ DCATolerance +/ db Δ DCATolerance +/ db Stability of Atten vs Frequency Stability of Attenuation vs Power GHz GHz Units Watts Watts Units 42UW03.00FQS 1 26 db/db/ghz db/db/watt ATTN ATTN ATTN ATTN Stability of Attenuation vs Temperature Change C C C 42UW03.00FQS C to -55 C 25 C to 100 C ATTN ATTN ATTN db/db/ C db/db/ C Stability of Atten vs Frequency Stability of Attenuation vs Power GHz GHz Watts Watts 42UW06.00FQS 1 26 Units Units ATTN ATTN db/db/ghz ATTN ATTN db/db/watt Stability of Attenuation vs Temperature Change C C C 42UW06.00FQS C to -55 C 25 C to 100 C ATTN ATTN ATTN db/db/ C db/db/ C E E E-05 Stability of Atten vs Frequency Stability of Attenuation vs Power GHz GHz Watts Watts Units 42UW10.00FQS 1 26 Units db/db/watt ATTN ATTN db/db/ghz ATTN ATTN Stability of Attenuation vs Temperature Change C C C 42UW10.00FQS C to -55 C 25 C to 100 C ATTN ATTN ATTN db/db/ C db/db/ C E E E E-05 TP- (Excel linked Appendix) REV. B 10 of 13

11 Acceptance Limits: In accordance with control drawing requirements. Results are for Reference only, due to temp variable device and device self-heating Visual and Mechanical Inspection: Verify and record that dimensions, material, marking and workmanship are in accordance with specification requirements. 3.2 Group 2 - Twelve (12) sample units from the Screening lot. Samples used must include the three (3) TCA samples from Screening Subgroup Electrical Test. Perform the electrical tests listed below at 0, 500, & 1000 hours: Measure and record DC resistance from center conductor to center conductor and center conductor to case Measure VSWR at each end (input and output) at 1.0 GHz to max product frequency in 1 GHz increments. Start Date 5/7/2014 End Date 5/7/2014 Lot#: Test Stage & INITIAL Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance +/ db Δ DCATolerance +/ db Δ DCATolerance +/ db Acceptance Limits: In accordance with control drawing requirements Measure and record Attenuation between ends at DC and at 1.0 GHz to max product frequency in 1 GHz increments. 42UW03.00FQS DCA UW06.00FQS DCA UW10.00FQS DCA Acceptance Limits: In accordance with control drawing requirements. TP- (Excel linked Appendix) REV. B 11 of 13

12 3.2.2 Burn-in Attenuators shall be burned-in for 500 hours at EACH end (1000 hours total) at maximum power per SCD at 75 C. Attenuators shall be terminated in a 50 load. Start Date 5/29/2014 End Date 5/29/2014 Lot#: Test Stage & Post 500 hr BI Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance +/ db Δ DCATolerance +/ db Δ DCATolerance +/ db 42UW03.00FQS HR 42UW06.00FQS HR 42UW10.00FQS HR. Start Date 6/26/2014 End Date 6/26/2014 Lot#: & Test Stage Post 1000 hr BI Repeat step Tolerance 0.5 db Tolerance 0.5 db Tolerance 0.6 db VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR DC-4 GHz 1.15 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 VSWR GHz 1.50 :1 Δ DCATolerance +/ db Δ DCATolerance +/ db Δ DCATolerance +/ db TP- (Excel linked Appendix) REV. B 12 of 13

13 42UW03.00FQS HR 42UW06.00FQS HR 42UW10.00FQS HR Acceptance limit: In accordance with control drawing requirements Visual and Mechanical Inspection: Verify and record that dimensions, material, marking and workmanship are in accordance with specification requirements Visual and Mechanical Inspection: Verify and record that dimensions, material, marking and workmanship are in accordance with specification requirements. 4.0 DATA AND SAMPLES REQUIREMENTS A certificate of conformance, variables data for VSWR and attenuation and attributes data (number of units tested, number passed) recorded by test and listing test operator and date performed, shall accompany shipments of deliverable units. Test samples shall be packaged in an anti-static bag and clearly marked as Qualification Inspection samples. Reference Document for Test Data Appendix Click for Link TP- (Excel linked Appendix) REV. B 13 of 13

FTTC05 Series LVDS TCXO/VCTCXO FOR SPACE APPLICATIONS 10M Hz to 1400MHz. ( 5 x 7 mm, SMD, 2.5 V )

REV LTR DESCRIPTION DATE APPVD. - Orig. Release 01/16/10 JSN A Revised per ECN 2012-1 11/09/12 JSN B Revised per ECN 2014-1 03/26/14 JSN C Revised per ECN 2016-2 10/21/16 JSN FTTC05 Series LVDS TCXO/VCTCXO