Monitored Alarm Systems

DALLAS, Jan. 19, 2012 / PRNewswire / - Texas Instruments Incorporated (TI) (NASDAQ: TXN) today introduced the industry's fastest, most performance analog front end (AFE) for stations Basic and femtocells portable software-defined radio (SDR) applications. The low-power 12-bit AFE7225 incorporates dual 125-MSPS analog-digital converter (ADC) and 250-MSPS Dual Digital to Analog (DAC). Operating 25 percent faster than the competition, while increasing the signal to noise ratio (SNR) of 2 dB, and offers up to five times the current output DAC. For more information and to request samples of these new SFA, visit www.ti.com/afe7225-pr.

AFE7225 addition, the AFE7222 is available for 12-bit applications bandwidth power, less sensitive. It incorporates dual 65-MSPS ADC converter and two 130 MSPS and uses only 398 mW in full-duplex or 212 mW in half duplex mode at full speed.

• The AFE7225 and AFE7222 integrate both the capabilities of digital signal processing rather than the SFA similar, increasing design flexibility. They are the only mixed-signal AFE with independent transmit and receive, 32-bit numerically controlled oscillators (NCO), serialized LVDS I / O options and independent transmit / receive correction quadrature modulation of the gain, phase and imbalances in compensation.
• Key features and benefits of AFE7225 and AFE7222

Low power consumption

: consumes only 12 mW in sleep mode, waking up only 13 of us, or as little as 120 mW in standby mode light with 5-time we wake up.

high performance for clarity signs

: Dual ADC achieves 70 dB SNR, while the converter performs a double flight of 75 dB adjacent channel with a 3G W-CDMA signal.

reduces FPGA signal processing requirements for the number grid, the interface speed and cost

: two of the transmission and Independent Film locking up the digital reception and conversion of 2 to 4x, 2x interpolation mixers NCO decimated thick and 32-bit frequency, the digital correction of gain, phase modulation and quadrature offset to receive and / or transmitting , and a power meter Peak / RMS.

Integration reduces system cost

: Dual 12-bit DAC and auxiliary-input dual 12-bit auxiliary ADC eliminate the need for the separate monitoring and control system, reduces board space, power and cost.

flexibility for designers
• : Input DAC and ADC digital outputs can be configured for LVDS pin serial to save / track count and using long trail signaling, or multiplexed interface 12-bit CMOS low power consumption, the support of two full-duplex bus or a half-duplex or two digital buses.

AFE7222 The AFE7225 and can be used in a direct conversion or heterodyne radio architectures. Heterodyne radios, a single channel in CAD SFA can be used to create an intermediate frequency around 100 MHz and to emit a single channel ADC can be used to capture FI over 300 MHz, with channels all closed save energy. Femtocell base stations, the SFA provide macro-cell performance when combined with high quality components with RF modulator IC TRF372017 the local oscillator and the demodulator IC TRF371125.

Tools

and support

evaluation modules are available for $ 499

. The AFE7222EVM and AFE7225EVM include TRF370333 IQ modulator and jitter CDCE72010 own IT management and supply of the device, such as DC / DC converters and low noise LDO to provide a few bits and complete RF reference design prototypes.

An IBIS model to verify the integrity requirements of the sign board is also available.
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