SN65HVD64RGTR

Overview

The SN65HVD64 is an integrated AISG transceiver designed for On and Off Keying (OOK) coax modem applications. It modulates baseband data to a 2.176-MHz carrier frequency for transmission over coaxial cables and demodulates incoming signals. The device supports signaling rates from 9.6 kbps to 115 kbps. It features a 3-V to 5.5-V analog supply (VCC) and a 1.6-V to 5.5-V independent logic supply (VL). The receiver provides a dynamic range of -15 dBm to +5 dBm, while the driver delivers adjustable output power from 0 dBm to 6 dBm into a 50-Ω load. It operates within an ambient temperature range of -40 °C to 120 °C.

Feature Summary

• Integrates an active bandpass filter with a 2.176-MHz center frequency to enable robust signal demodulation in the presence of spurious components.
• Provides a direction control output that facilitates bus arbitration for RS-485 interfaces by automatically toggling based on coaxial input activity.
• Supports low-power standby mode to reduce supply current when the node is not actively transmitting.
• Includes an internal oscillator circuit compatible with external crystals or standard clock inputs for precise carrier frequency generation.

Applications

• AISG interface for antenna line devices
• Tower-mounted amplifier (TMA) connections
• General modem interfaces for radio equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest datasheet addendum to confirm package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements for the target region. Confirm availability through authorized distributors as production status may change. Validate that the selected variant matches the required thermal and electrical operating conditions for the final assembly.

Selection Notes

Select this component when designing systems requiring compliance with Antenna Interface Standards Group v2.0 and v3.0 specifications. Choose this device if the application demands integration of OOK modulation/demodulation with RS-485 bus arbitration capabilities. Consider the 16-pin VQFN package constraints for PCB layout and thermal management. Verify that the independent logic supply voltage aligns with the microcontroller or processor interface levels used in the system design.

Part Context

The SN65HVD64 belongs to Texas Instruments' family of AISG transceivers. It is specifically engineered to bridge digital logic interfaces with RF coaxial media for telecommunications infrastructure. Unlike standard RS-485 transceivers, it handles frequency-shift keying protocols essential for remote antenna control. The device simplifies system architecture by combining modem functions with directional control logic in a single compact package.

Replacement Considerations

SN65HVD64RGTR