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Features
Ultra-wide dynamic range
Excellent performance to Nyquist
IF sampling capability
Very small package: 48-pin CSP
Programmable Output Levels: 3.3V to 5V
Description The CLC5958 is a monolithic 14-bit, 52 MSPS analog-to-digital converter. The ultra-wide dynamic range and high sample rate of the device make it an excellent choice for wideband receivers found in multi-channel base-stations. The CLC5958 integrates a low distortion track-and-hold amplifier and a 14-bit multi-stage quantizer on a single die. Other features include differential analog inputs, low jitter differential clock inputs, an internal bandgap voltage reference, and CMOS/TTL compatible outputs. The CLC5958 is fabricated on the National ABIC-V 0.8 micron BiCMOS process.
The CLC5958 features a 90 dB spurious free dynamic range (SFDR) and 70 dB signal-to-noise ratio (SNR). The balanced differential analog inputs ensure low even-order distortion, while the differential clock inputs permit the use of balanced clock signals to minimize clock jitter. The 48-pin CSP package provides an extremely small footprint for applications where space is a critical consideration. The package also provides a very low thermal resistance to ambient. The CLC5958 may be operated with a single +5V power supply. Alternatively, an additional supply may be used to program the digital output levels over the range of +3.3V to +5V. Operation over the industrial temperature range of -40°C to +85°C is guaranteed. National Semiconductor tests each part to verify compliance with the guaranteed specifications.
Key Specification
Sample Rate |
52 MSPS |
SFDR |
90 dB |
Noise floor |
-72 dBFS |
Applications
Multi-channel basestations
Multi-standard basestations: GSM, WCDMA, DAMPS, etc.
Smart antenna systems
Wireless local loop
Wideband digital communications
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