Product Summary
The CLC5903VLA is a two channel digital downconverter (DDC) with integrated automatic gain control (AGC). The CLC5903VLA is a key component in the Enhanced Diversity Receiver Chipset (EDRCS) which includes one CLC5903 Dual Digital Tuner / AGC, two CLC5957 12-bit analog-to-digital converters (ADCs), and two CLC5526 digitally controlled variable gain amplifiers (DVGAs). This system allows direct IF sampling of signals up to 300MHz for enhanced receiver performance and reduced system costs. The applications of the CLC5903VLA include Cellular Basestations, Satellite Receivers, Wireless Local Loop Receivers and Digital Communications.
Parametrics
CLC5903VLA absolute maximum ratings: (1)Positive IO Supply Voltage (VDDIO): -0.3V to 4.2V; (2)Positive CoreSupply Voltage (VDD): -0.3V to 2.4V; (3)Voltage on Any Input or Output Pin: -0.3V to VDDIO+0.5V; (4)Input Current at Any Pin: ±25mA; (5)Package Input Current: ±50mA; (6)Package Dissipation at TA=25℃: 1W; (7)ESD Susceptibility, Human Body Model: 2000V; Machine Model: 200V; (8)Soldering Temperature, Infrared, 10 seconds: 300℃; (9)Storage Temperature: -65 to 150℃.
Features
CLC5903VLA features: (1)78MSPS Operation; (2)Low Power, 145mW/channel, 52 MHz, Dec=192; (3)Two Independent Channels with 14-bit inputs; (4)Serial Daisy-chain Mode for quad receivers; (5)Greater than 100 dB image rejection; (6)Greater than 100 dB spurious free dynamic range; (7)0.02 Hz tuning resolution; (8)User Programmable AGC with enhanced Power Detector; (9)Channel Filters include a Fourth Order CIC followed by 21-tap and 63-tap Symmetric FIRs; (10)FIR filters process 21-bit Data with 16-bit Programmable Coefficients; (11)Two independent FIR coefficient memories which can be routed to either or both channels.; (12)Flexible output formats include 12-bit Floating Point or 8, 16, 24, and 32 bit Fixed Point; (13)Serial and Parallel output ports; (14)JTAG Boundary Scan; (15)8-bit Microprocessor Interface; (16)128 pin PQFP and 128 pin FBGA packages; (17)100% Software compatible with the CLC5902; (18)Pin compatible with the CLC5902 except for VDD voltage.
Diagrams
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![]() CLC5903VLA/NOPB |
![]() National Semiconductor (TI) |
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