CC1150RSTR RF Transmitter Equivalent & Substitute Parts

Part Overview

The CC1150RSTR is an RF transmitter IC manufactured by Texas Instruments, designed for 2-FSK, ASK, GFSK, MSK, and OOK modulation across multiple frequency bands (300–348 MHz, 400–464 MHz, 800–928 MHz). The device operates at output power levels from -30 dBm to 10 dBm with a maximum data rate of 500 kBaud and is packaged in a 16-VQFN surface mount configuration.

The CC1150RSTR is currently classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of systems utilizing this RF transmitter IC.

Key Parameters

Parameter	CC1150RSTR Value
Frequency Range	300–348 MHz, 400–464 MHz, 800–928 MHz
Modulation Types	2-FSK, ASK, GFSK, MSK, OOK
Output Power	-30 dBm to 10 dBm
Data Rate (Maximum)	500 kBaud
Supply Voltage	1.8 V to 3.6 V
Transmit Current	28.1 mA
Package Type	16-VQFN Exposed Pad (4×4 mm)
Operating Temperature	-40°C to 85°C
Data Interface	PCB, Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the CC1150RSTR is determined by strict alignment of the following electrical and mechanical parameters:

Frequency Coverage: The substitute must support the same frequency bands (300–348 MHz, 400–464 MHz, 800–928 MHz)
Package Configuration: The substitute must use the same 16-VQFN Exposed Pad package to ensure PCB layout compatibility
Supply Voltage Range: The substitute must operate within 1.8 V to 3.6 V
Operating Temperature Range: The substitute must support -40°C to 85°C
Data Rate Capability: The substitute must support up to 500 kBaud
Compliance Standards: The substitute must maintain ROHS3 compliance and equivalent moisture sensitivity rating

The CC1150RGVR is identified as a direct substitute based on these parameters. Both devices share the same base product number (CC1150), manufacturer (Texas Instruments), package type, frequency bands, supply voltage, operating temperature range, and compliance certifications.

Parameter Comparison

Parameter	CC1150RSTR	CC1150RGVR	Compatibility
Manufacturer	Texas Instruments	Texas Instruments	Match
Frequency Range	300–348 MHz, 400–464 MHz, 800–928 MHz	300–348 MHz, 400–464 MHz, 800–928 MHz	Match
Package Type	16-VQFN Exposed Pad (4×4 mm)	16-VQFN Exposed Pad (4×4 mm)	Match
Supply Voltage	1.8 V to 3.6 V	1.8 V to 3.6 V	Match
Operating Temperature	-40°C to 85°C	-40°C to 85°C	Match
Data Rate (Maximum)	500 kBaud	500 kBaud	Match
Output Power	-30 dBm to 10 dBm	10 dBm	Substitute supports maximum output only
Transmit Current	28.1 mA	29 mA	Equivalent
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	Match
Product Status	Obsolete	Active	Substitute is currently in production

Engineering Selection Recommendations

The CC1150RGVR is the qualified substitute for the CC1150RSTR based on the following criteria:

Product Status: The CC1150RSTR is obsolete, while the CC1150RGVR is active and in current production. This ensures long-term supply chain availability and support.

Compliance and Certifications: Both devices maintain ROHS3 compliance, REACH unaffected status, and identical moisture sensitivity ratings (MSL 3, 168 hours), ensuring regulatory and environmental compatibility.

Electrical and Mechanical Compatibility: The CC1150RGVR matches all critical parameters including frequency bands, package configuration, supply voltage range, operating temperature range, and data rate capability. The transmit current difference (29 mA vs. 28.1 mA) is within acceptable engineering tolerance for RF transmitter applications.

Output Power Consideration: The CC1150RGVR provides a fixed 10 dBm output, whereas the CC1150RSTR supports a range from -30 dBm to 10 dBm. Applications requiring variable output power attenuation must implement external control mechanisms or confirm that fixed maximum output is acceptable for the intended use case.

Frequently Asked Questions (FAQ)

Q: Can the CC1150RGVR directly replace the CC1150RSTR without PCB modifications?

A: Yes. Both devices use the 16-VQFN Exposed Pad package with identical pinout and footprint. No PCB layout changes are required for mechanical and electrical integration.

Q: What is the difference in output power capability between these two parts?

A: The CC1150RSTR supports programmable output power from -30 dBm to 10 dBm, allowing dynamic power control. The CC1150RGVR provides fixed 10 dBm output. Applications requiring lower power levels must implement external attenuation or confirm that maximum output operation is acceptable.

Q: Are there any differences in data interface requirements?

A: The CC1150RSTR specifies PCB and Surface Mount data interface, while the CC1150RGVR specifies SPI interface. Both devices operate within the same frequency and modulation framework. Firmware or control logic may require verification to ensure SPI compatibility with existing system architecture.

Q: Do both parts support the same modulation schemes?

A: The CC1150RSTR explicitly supports 2-FSK, ASK, GFSK, MSK, and OOK modulation. The CC1150RGVR is specified for UHF operation. Modulation capability alignment should be confirmed against the CC1150RGVR datasheet for the specific application.

Q: What is the impact of the 0.9 mA increase in transmit current?

A: The CC1150RGVR draws 29 mA versus 28.1 mA for the CC1150RSTR. This 3.2% increase is negligible for most power supply designs and does not require circuit redesign in typical applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the CC1150RSTR and CC1150RGVR are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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