The 74F776, N74F776F is an octal bidirectional latched transceiver and is intended to provide the electrical interface to a high performance wired–OR bus. The B port inverting drivers are low–capacitance open collector with controlled ramp and are designed to sink 100mA from 2 volts. The B port inverting receivers have a 100 mV threshold region and a 4ns glitch filter.
The 74F776 A port has TTL 3–state drivers and TTL receivers with a latch function. A separate high–level control voltage input (VX) is provided to limit the A side output level to a given voltage level (such as 3.3V). For 5.0V systems, VXis simply tied to VCC.
1. Octal latched transceiver
2. Drives heavily loaded backplanes with equivalent load impedances down to 10 ohms
3. High drive (100mA) open collector drivers on B port
4. Reduced voltage swing (1 volt) produces less noise and reduces power consumption
5. High speed operation enhances performance of backplane buses and facilitates incident wave switching
6. Compatible with Pi–bus and IEEE 896 Futurebus standards
7. Built–in precision band–gap reference provides accurate receiver thresholds and improved noise immunity
The AD9361 is a high performance, highly integrated radio frequency (RF) Agile Transceiver™ designed for use in 3G and 4G base station applications. Its programmability and wideband capability make it ideal for a broad range of transceiver applications.
The device combines a RF front end with a flexible mixed-signal baseband section and integrated frequency synthesizers, simplifying design-in by providing a configurable digital interface to a processor. The AD9361 operates in the 70 MHz to 6.0 GHz range, covering most licensed and unlicensed bands. Channel bandwidths from less than 200 kHz to 56 MHz are supported.
The two independent direct conversion receivers have state-of-the art noise figure and linearity. Each receive (RX) subsystem includes independent automatic gain control (AGC), dc offset correction, quadrature correction, and digital filtering, thereby eliminating
the need for these functions in the digital baseband. The AD9361 also has flexible manual gain modes that can be externally controlled. Two high dynamic range ADCs per channel digitize the received I and Q signals and pass them through configurable decimation filters and 128-tap finite impulse response (FIR) filters to produce a 12-bit output signal at the appropriate sample rate.
1. TX band: 47 MHz to 6.0 GHz
2. RX band: 70 MHz to 6.0 GHz
3. Supports TDD and FDD operation
4. Tunable channel bandwidth: <200 kHz to 56 MHz
5. Dual receivers: 6 differential or 12 single-ended inputs