Overview
The TRF3722IRGZR is a high-performance direct conversion quadrature modulator produced by Texas Instruments. It integrates an Integer-N/Fractional-N PLL and a VCO, providing exceptional linearity and low noise performance. The device supports a wide frequency range from 400 MHz to 4.2 GHz, making it suitable for various wireless communication applications. The TRF3722IRGZR features a typical 0.25-V baseband common mode voltage, which supports seamless interface with current source DACs. It also includes multiple power down modes and a high gain mode for increased performance or a low power mode for power optimization.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frequency Range | 400 MHz to 4.2 GHz | |
| PLL and VCO Frequency Range | 280 MHz to 4100 MHz | |
| OIP3 at 900 MHz | 31 dBm | |
| OIP3 at 1800 MHz | 30 dBm | |
| VCO 1800-MHz Open Loop Phase Noise | –141 dBc/Hz at 1 MHz Offset | |
| Output Power (P1dB) | 13 dBm | |
| Supply Voltage | 3 V to 5.5 V | |
| Supply Current | 374 mA | |
| Operating Temperature Range | -40°C to 85°C | |
| Package Type | 48-pin VQFN (RGZ) |
Key Features
- IQ Modulator with Integrated PLL and VCO
- Integer-N/Fractional-N PLL
- Modulator supports 400 MHz to 4200 MHz
- PLL and VCO supports 280 MHz to 4100 MHz
- Independent LO Output supports divide-by 1/2/4/8
- Modulator Low Power and High Gain Modes
- Multiple Power Down Modes
- Typical 0.25-V baseband common mode voltage for seamless interface with current source DACs
Applications
- Wireless Infrastructure: CDMA (IS95, UMTS, CDMA2000, TD-SCDMA), LTE, TD-LTE, LTE Advanced, TDMA (GSM, EDGE, MC-GSM)
- Point-to-Point Microwave and Point-to-Multipoint Microwave
- Software Defined Radios
- RF Repeaters and Distributed Antenna Systems
Q & A
- What is the frequency range supported by the TRF3722IRGZR?
The TRF3722IRGZR supports a frequency range from 400 MHz to 4.2 GHz.
- What type of PLL and VCO does the TRF3722IRGZR integrate?
The TRF3722IRGZR integrates an Integer-N/Fractional-N PLL and a VCO.
- What is the typical output power (P1dB) of the TRF3722IRGZR?
The typical output power (P1dB) is 13 dBm.
- What are the supply voltage and current requirements for the TRF3722IRGZR?
The supply voltage ranges from 3 V to 5.5 V, and the supply current is approximately 374 mA.
- What is the operating temperature range of the TRF3722IRGZR?
The operating temperature range is from -40°C to 85°C.
- What package type is the TRF3722IRGZR available in?
The TRF3722IRGZR is available in a 48-pin VQFN (RGZ) package.
- Does the TRF3722IRGZR support multiple power modes?
Yes, the TRF3722IRGZR supports multiple power down modes and both high gain and low power modes.
- What are some common applications of the TRF3722IRGZR?
Common applications include wireless infrastructure, point-to-point and point-to-multipoint microwave systems, software defined radios, and RF repeaters.
- What is the phase noise performance of the VCO at 1800 MHz?
The VCO 1800-MHz open loop phase noise is –141 dBc/Hz at 1 MHz offset.
- Does the TRF3722IRGZR have an independent LO output?
Yes, the TRF3722IRGZR has an independent LO output that supports divide-by 1/2/4/8.
