CC1125RHBR - Sub-1GHz Narrowband RF Transceiver 16dBm | TI
料号： CC1125RHBR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.85 | $485.00 |
| 500 | $4.35 | $2,175.00 |
| 1,000 | $3.9 | $3,900.00 |
CC1125RHBR 概述
An RF transceiver is an integrated circuit that combines a transmitter and a receiver sharing a single antenna interface and frequency synthesis path, forming the core of any half-duplex wireless link. Within the power management and connectivity hierarchy, the CC1125 belongs to the sub-1 GHz ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) radio family, sitting above simple RF front-end modules because it integrates the complete physical layer.
Key differentiating features include fully integrated IF filtering that eliminates costly external SAW filters, a high-performance narrowband architecture optimized for channels as tight as 12.5 kHz, very low-power and low-voltage operation, and an on-chip packet engine with CRC and address handling that offloads the host MCU. According to the TI product page, the device is designed for cost-effective wireless systems requiring long range and high link reliability.
Technically, the CC1125 uses a zero-IF receive architecture with integrated channel filters, a fractional-N synthesizer, and a programmable power amplifier reaching +16 dBm. The narrowband design maximizes spectral efficiency and interference rejection, which is the primary reason engineers select it over wideband FSK parts like the CC1101 family for professional telemetry and metering systems.
Typical applications include smart metering, industrial telemetry and SCADA links, professional wireless audio and intercom systems, alarm and security networks, and narrowband IoT backhaul, where the 200 kbps data rate and 16 dBm output extend link budgets well beyond wideband alternatives.
Design considerations: the exposed pad is the primary ground return and must be soldered to a solid ground plane with thermal vias, and RF matching networks must be band-specific per TI reference designs.
This page synthesizes distributor availability, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： CC1125RHBR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： CC1125RHBR （相同外形与封装尺寸） ——差异在于 Product Type, Package, Integrated Filters, Frequency Bands, Modulation.
快速对比工具——选择替代料号进行并排对比：
CC1125RHBT
✅ 直接替换✓ 有现货
$2.78 / 个
查看数据手册 →CC1125RHMR
✅ 直接替换📋 参考替代料（不在目录中）
CC1120RHBR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.52 / 个
查看数据手册 →CC1121RHBR
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.85 / 个
查看数据手册 →CC1125RHBR 规格参数
| Product Type | Single-chip RF transceiver (TxRx) |
| Frequency Band 1 | 164 MHz to 192 MHz |
| Frequency Band 2 | 274 MHz to 320 MHz |
| Frequency Band 3 | 410 MHz to 480 MHz |
| Frequency Band 4 | 820 MHz to 960 MHz |
| Max Output Power | 16 dBm |
| Max Data Rate | 200 kbps |
| Architecture | Narrowband, fully integrated filters (no external SAW/IF filters) |
| Intended Bands | ISM and SRD sub-1 GHz |
| 封装 | 32-VFQFN with exposed pad |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 |
| RoHS 状态 | Compliant |
CC1125RHBR 32-vfqfn with exposed pad 引脚配置指南
CC1125RHBR（32-vfqfn with exposed pad 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： CC1125RHBR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
CC1125RHBR 适用于 6 应用s: Smart Metering Networks, Industrial Telemetry and SCADA, Professional Wireless Audio and Intercom, Alarm and Security Systems, Narrowband IoT Backhaul, Wireless Remote Control and Access.
Smart Metering Networks
The CC1125RHBR is a strong fit for smart electricity, water, and gas metering because narrowband operation concentrates transmit energy into tight channels, maximizing range per watt in congested sub-1 GHz ISM bands. With 16 dBm output power and integrated channel filtering, meters achieve reliable links to data concentrators hundreds of meters away, even in dense urban multipath. The on-chip packet engine handles CRC and address filtering, offloading the meter's host MCU and reducing firmware complexity. The transceiver's low-power modes preserve multi-year battery life in water and gas meters, while the fully integrated filters eliminate external SAW components, reducing BOM cost across fleets of millions of units.
推荐
Industrial Telemetry and SCADA
In industrial telemetry, the CC1125RHBR links remote sensors, PLC nodes, and RTUs back to supervisory systems across factory floors and utility sites. Its 200 kbps data rate supports periodic process-variable reporting, while narrowband channels resist interference from welding equipment, variable-frequency drives, and other industrial noise sources. The 410-480 MHz band is widely licensed for such use in many regions. With 16 dBm output and high receiver selectivity, the part sustains links where wideband transceivers drop out, and its low-voltage operation integrates directly into standard 3.3 V industrial electronics without additional power conditioning.
推荐
Professional Wireless Audio and Intercom
Narrowband digital audio links such as wireless intercoms, in-ear monitoring, and tour-guide systems benefit from the CC1125RHBR's 164-192 MHz and 820-960 MHz coverage and its tight integrated filtering, which suppresses adjacent-channel interference in crowded venues. The 200 kbps data rate accommodates compressed digital audio streams with forward-error protection, and the fractional-N synthesizer supports precise channel assignment required for licensed professional audio operation. The high linearity and stable frequency synthesis minimize spurious emissions into the audio band, while TI's reference designs for band-specific matching reduce time to market for audio equipment manufacturers.
推荐
Alarm and Security Systems
Professional alarm panels, panic transmitters, and gate-control receivers use the CC1125RHBR in 433 MHz and 868 MHz SRD bands, where its narrowband selectivity prevents false alarms from adjacent-channel congestion. The 16 dBm output keeps perimeter sensors in contact across large sites, and the integrated packet engine's CRC detection ensures command authenticity at the link layer. Fast startup and low quiescent operation suit battery-powered door contacts and PIR detectors that must sleep for years. Because all filters are on-chip, security equipment makers keep receiver BOM cost low while meeting EN regional radio regulatory requirements for SRD operation.
推荐
Narrowband IoT Backhaul
For narrowband IoT deployments such as utility mesh networks and smart-city sensor backhaul, the CC1125RHBR provides the physical layer: its high-performance narrowband receiver pulls weak signals out of dense 868/915 MHz spectrum, and its 200 kbps rate aggregates many low-rate sensor payloads per hop. The zero-IF architecture with integrated channel filters reduces component count in compact gateway hardware, while the exposed-pad VFQFN-32 keeps the footprint small on multi-layer gateway boards. Designers pair it with an external front-end module for gateways needing extra transmit power or receive sensitivity beyond the 16 dBm baseline, using TI's documented front-end reference designs.
推荐
Wireless Remote Control and Access
Two-way remote controls, keyless entry receivers, and garage/gate access systems leverage the CC1125RHBR's sub-1 GHz bands and packet-level security support for rolling-code style protocols executed on the host MCU. The 200 kbps rate gives fast, low-latency command exchange with acknowledgement, improving perceived responsiveness versus legacy 2-5 kbps ASK systems, while narrowband reception dramatically cuts co-channel false triggering in parking structures. The low-power receive mode and integrated wakeup handling let receiver units idle economically, and the 32-VFQFN package allows compact receiver PCBs that fit within sealed actuator housings typical of access-control installations.
推荐
推荐产品汇总
工程参考数据： CC1125RHBR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | CC1125RHBT | CC1125RHMR | CC1120RHBR |
|---|---|---|---|---|
| Package | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad - same | 32-VFQFN Exposed Pad - same | 32-VFQFN Exposed Pad - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Integrated Filters (no SAW) | Yes | Yes | Yes | Yes |
| Narrowband Performance Tier | Ultra-high performance | Ultra-high performance (same die) | Ultra-high performance (same die) | High performance (lower selectivity) |
关键差异点
- Ultra-high-performance narrowband selectivity （对比 CC1120RHBR)
- Fully integrated IF filtering （对比 External-SAW architectures)
- Same-footprint performance/price ladder （对比 CC1125RHBT)
设计说明
The exposed pad on the 32-VFQFN package is the primary RF ground and thermal path. Connect it to a solid ground plane through a grid of stitching vias (at least 9, per TI CC1125 reference design). Keep the 32 MHz crystal within 5 mm of its pins and guard it with ground. Follow the band-specific matching network in the CC1125 RF user guide exactly - changing matching component values without re-simulation degrades output power and harmonic performance.
Decouple each supply pin with 100 nF ceramics placed within 2 mm, plus a bulk 10 uF. During full +16 dBm transmit bursts, supply current peaks are significant; a locally placed bulk capacitor prevents supply droop that would show up as frequency error and degraded modulation. Estimated: at 16 dBm, PA current draw is on the order of tens of milliamps, so size the 3.3 V regulator with adequate burst headroom and low transient impedance.
Register configuration is not portable across CC112x family members - settings exported for CC1120 will not be optimal on CC1125. Always regenerate RF settings with TI SmartRF Studio for the exact chip and band. Also verify regional regulatory limits: 16 dBm is above the permitted ERP in some 868 MHz SRD sub-bands, so antenna gain and duty-cycle management must be checked per market before certification.
合规信息
RoHS compliant per PartGenie compliance notes for CC1125RHBR. REACH, halogen-free, and conflict-minerals status not stated in verified data - confirm on TI compliance portal.
