SDM0102LC1CDQ RF Modulator Equivalent & Substitute Parts

Part Overview

The SDM0102LC1CDQ is an I/Q RF Modulator IC manufactured by L3 Narda-MITEQ, operating across the 1GHz to 2GHz frequency range with SMA connectors in a module package format. The device delivers 5dBm P1dB performance and maintains active product status with 1090 units in current inventory.

Substitute parts are identified based on functional equivalence as RF modulators with overlapping or extended frequency coverage, compatible electrical performance characteristics, and surface mount or module-level packaging suitable for direct circuit integration.

Key Parameters

Parameter	SDM0102LC1CDQ
Manufacturer	L3 Narda-MITEQ
Function	Modulator
RF Frequency Range	1GHz ~ 2GHz
P1dB	5dBm
Package Type	Module, SMA Connectors
Product Status	Active
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitute parts are grouped by frequency coverage overlap with the SDM0102LC1CDQ operating band (1GHz ~ 2GHz). The primary substitution criteria are:

Functional equivalence: All substitutes perform RF modulation
Frequency overlap: RF frequency range must encompass or substantially overlap the 1GHz ~ 2GHz band
P1dB performance: Output compression point must support the application requirements
Mounting compatibility: Surface mount or integrated module formats suitable for circuit board integration
Product status and compliance: Active or available inventory status with REACH compliance

Parts are organized into three categories based on frequency coverage characteristics relative to the main part's 1GHz ~ 2GHz specification.

Parameter Comparison

Part Number	Manufacturer	RF Frequency Range	P1dB (dBm)	Package / Case	Product Status	Inventory (Pcs)
SDM0102LC1CDQ	L3 Narda-MITEQ	1GHz ~ 2GHz	5	Module, SMA Connectors	Active	1090
AD8349AREZ	Analog Devices Inc.	700MHz ~ 2.7GHz	5.6	16-TSSOP (0.173", 4.40mm Width) Exposed Pad	Active	1886
ADL5372ACPZ-R7	Analog Devices Inc.	1.5GHz ~ 2.5GHz	14.2	24-VFQFN Exposed Pad, CSP	Active	8635
ADL5591ACPZ-R7	Analog Devices Inc.	1.805GHz ~ 1.99GHz	16	36-VFQFN Exposed Pad, CSP	Active	2240
ADRF6755ACPZ	Analog Devices Inc.	100MHz ~ 2.4GHz	9	56-VFQFN Exposed Pad, CSP	Active	1997
HMC1197LP7FETR	Analog Devices Inc.	100MHz ~ 4GHz	9.5	48-VFQFN Exposed Pad	Obsolete	8737
LT5568-2EUF#PBF	Analog Devices Inc.	700MHz ~ 1.05GHz	8.3	16-WQFN Exposed Pad	Active	3200
LTC5598IUF#TRPBF	Analog Devices Inc.	5MHz ~ 1.6GHz	8	24-WFQFN Exposed Pad	Last Time Buy	2300
TRF370315IRGER	Texas Instruments	400MHz ~ 4GHz	9.5	24-VFQFN Exposed Pad	Active	20458
TRF370315IRGET	Texas Instruments	400MHz ~ 4GHz	9.5	24-VFQFN Exposed Pad	Active	1158
TRF3705IRGET	Texas Instruments	300MHz ~ 4GHz	13.7	24-VFQFN Exposed Pad	Active	6201

Engineering Selection Recommendations

Primary Substitutes (Full Frequency Coverage)

ADL5372ACPZ-R7 and ADL5591ACPZ-R7 provide direct frequency band coverage within or closely aligned to the 1GHz ~ 2GHz specification. Both are active products with ROHS3 compliance and MSL-3 moisture sensitivity ratings. ADL5372ACPZ-R7 offers superior P1dB performance (14.2dBm) and higher inventory availability (8635 units). ADL5591ACPZ-R7 operates within the narrower 1.805GHz ~ 1.99GHz band with 16dBm P1dB.

Extended Frequency Coverage Substitutes

TRF370315IRGER and TRF370315IRGET (Texas Instruments) provide 400MHz ~ 4GHz coverage with 9.5dBm P1dB and 24-VFQFN packaging. TRF370315IRGER maintains highest inventory (20458 units) with MSL-2 rating. TRF3705IRGET extends to 300MHz lower bound with enhanced P1dB (13.7dBm) but requires 3.15V ~ 3.6V supply voltage.

ADRF6755ACPZ spans 100MHz ~ 2.4GHz with 9dBm P1dB and 56-VFQFN package, suitable for broadband applications requiring extended low-frequency performance.

Limited Substitutes (Partial Coverage)

LT5568-2EUF#PBF covers 700MHz ~ 1.05GHz, providing partial overlap at the lower SDM0102LC1CDQ band edge. LTC5598IUF#TRPBF extends to 5MHz but operates only to 1.6GHz, limiting upper band coverage. Both are active products with EAR99 ECCN classification.

Avoid

HMC1197LP7FETR is obsolete and unsuitable for new designs despite adequate frequency coverage and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can AD8349AREZ directly replace SDM0102LC1CDQ?

A: AD8349AREZ provides 700MHz ~ 2.7GHz coverage encompassing the 1GHz ~ 2GHz band with comparable 5.6dBm P1dB. However, it uses 16-TSSOP surface mount packaging versus the SDM0102LC1CDQ module format with SMA connectors. Circuit board layout and connector integration requirements differ significantly.

Q: What is the frequency coverage advantage of TRF370315IRGER?

A: TRF370315IRGER operates 400MHz ~ 4GHz, providing extended bandwidth beyond the SDM0102LC1CDQ 1GHz ~ 2GHz specification. This enables single-device solutions for multi-band applications. The 24-VFQFN package requires surface mount assembly versus module integration.

Q: Why is ADL5591ACPZ-R7 listed despite narrower frequency range?

A: ADL5591ACPZ-R7 operates 1.805GHz ~ 1.99GHz, which encompasses the upper portion of the SDM0102LC1CDQ band. It delivers superior P1dB performance (16dBm) for applications operating within this narrower window, making it suitable for specific frequency-constrained designs.

Q: Are all substitutes REACH compliant?

A: All listed parts carry REACH Unaffected status, confirming compliance with EU chemical substance regulations. This matches the SDM0102LC1CDQ REACH status.

Q: What packaging considerations apply to substitutes?

A: The SDM0102LC1CDQ uses module packaging with SMA connectors for direct RF integration. All listed substitutes employ surface mount QFN or TSSOP packages requiring PCB-level integration. Design migration requires connector interface redesign and layout modifications.

Q: Which substitute offers best inventory availability?

A: TRF370315IRGER provides 20458 units in stock, the highest among all substitutes. ADL5372ACPZ-R7 follows with 8635 units. Both are active products suitable for immediate procurement.

Q: Can LTC5598IUF#TRPBF be used for new designs?

A: LTC5598IUF#TRPBF carries Last Time Buy status, indicating discontinued production. While 2300 units remain in inventory, it is unsuitable for new long-term designs. Active alternatives such as AD8349AREZ or TRF370315IRGER are recommended.

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