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2 / 22 page 2004 Jul 05 2 Philips Semiconductors Product specification 12-bit, 5.0 V, 30 Msps analog-to-digital interface for CCD cameras TDA9965 FEATURES • Clamp and Track/Hold (CTH) circuit with adjustable bandwidth, Programmable Gain Amplifier (PGA), 12-bit Analog-to-Digital Converter (ADC) and reference regulator • Fully programmable via a 3-wire serial interface • Sampling frequency up to 30 MHz • PGA gain from 0 to 36 dB (in 0.05 dB steps) • CTH programmable bandwidth from 35 to 284 MHz typical • Standby mode (20 mW typical) • Low power consumption of only 425 mW typical • 5 V operation and 2.5 to 5.25 V operation for the digital outputs • TTL compatible inputs; TTL and CMOS compatible outputs. APPLICATIONS • CCD camera systems. GENERAL DESCRIPTION The TDA9965 is a 12-bit analog-to-digital interface for a CCD camera. The device includes a CTH circuit, PGA and a low-power 12-bit ADC, together with its reference voltage regulator. The CTH has a bandwidth circuit controlled by on-chip DACs via a serial interface. A 10-bit digital clamp controls the ADC input clamp level. ORDERING INFORMATION QUICK REFERENCE DATA Note 1. Noise and clamp behaviour are not guaranteed for a PGA gain higher than 30 dB. TYPE NUMBER PACKAGE NAME DESCRIPTION VERSION TDA9965HL LQFP48 plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm SOT313-2 SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCCA analog supply voltage 4.75 5 5.25 V VCCD digital supply voltage 4.75 5 5.25 V VCCO digital output supply voltage 2.5 3 5.25 V ICCA analog supply current with internal regulator − 65 − mA ICCD digital supply current with internal regulator − 19 − mA ICCO digital output supply current fpix = 30 MHz; CL =10pF on all data outputs; ramp input − 1 − mA ADCres ADC resolution − 12 − bits Vi(IN)(p-p) CTH input voltage (peak-to-peak value) − 2 − V GCTH CTH output amplifier gain − 0 − dB PGAdyn PGA dynamic range − 36 − dB fpix(max) maximum pixel frequency code fco(CTH) = 0000 30 −− MHz Ntot(rms) total noise from CTH input to ADC output (RMS value) GPGA = 0 dB; code fco(CTH) = 0000 − 0.85 − LSB Vn(i)(eq)(rms) equivalent input noise (RMS value) GPGA = 30 dB; code fco(CTH) = 0000; note 1 − 90 −µV Ptot total power consumption − 425 − mW |
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