Digital CCD Camera Head Amplifier head amplifier for digital CCD cameras. This IC provides the following functions: correlated double sampling, AGC for the CCD signal, A/D sample and hold, blanking, A/D reference voltage, and an output • High sensitivity made possible by a high-gain AGC • Blanking function provided for the purpose of calibrating the CCD output signal black level • Regulator output pin provided for A/D converter reference voltage * Built-in sample-and-hold circuits for camera signals required by external A/D converters Absolute Maximum Ratings • Operating temperature Topr -20 to +75 °C • Storage temperature Tstg -65 to +150 °C • Allowable power dissipation PD 417 mW Operating Conditions Supply voltage DVC/still cameras for consumer use Bipolar silicon monolithic IC Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

Block Diagram and Pin Configuration

Equivalent circuit Power saving mode. Power supply.

Equivalent circuit normally ground. noise when this pin is noise when this pin is Camera signal preblanking pulse output waveform.

Equivalent circuit Camera signal pulse input. Clamp pulse used to camera signal after it

Equivalent circuit camera signal. Preset level sample- and-hold pulse input. Data level sample- and-hold pulse input. Clamp pulse used to Black level DRVOUT output waveform rise time rise time rise time

Electrical Characteristics Measurement Circuit

Measurement Timing Chart Equivalent to CCD signal black level Different for each test

Application Circuit Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same.

Refer to the Block Diagram. Operating Conditions The camera signal processing system operates when PS is High. Timing Chart (when Vcc = 3V) . during the idle transfer CAMSH output Signal interval Precharge level Idle transfer Signal interval Signal level Basic black Black level transfer interval) DRVOUT output Approx. VRB + 35mV when OFFSET = OV Approx. VRB + 100mV when OFFSET = 1.5V Applox. VRB when OFFSET = 3V

The CCD signal from the CCD image sensor is input to PIN and DIN where correlated double sampling (CDS) is performed by SH1, SH2 and SH3. The precharge level of the CCD output signal is sampled, held and output by the SH2 output, and the signal level is sampled, held and output by the SH3 output. SH1 and SH2 are the sample-and-hold circuits for the precharge level; SH3 is the sample-and-hold circuit for the signal level. CDSCLP1 and 2 stabilize the input signal DC level, clamp (CLPDM) the input signal during the idle transfer interval for the purpose of eliminating the AGC input offset, and adjust...

DRV drives the external A/D. The current that flows to the last-stage amplifier in DRV is controlled by applying voltage to the 1CONT pin, making it possible to adjust the rise time of the output waveform, which affects the external A/D load capacitance. The variable range is 1.5 to 3V, with 1.5V yielding the maximum and 3V yielding the minimum. The optimum rise time for the external A/D input capacitance can be selected. VRTDRV, VRBDRV: These are the external A/D reference voltage drivers. These circuits are connected to A/D VRT and VRB, supplying 2.35V and 1.35V, respectively, when Vcc is 3V....

Characteristics Graphs AGCCONT control supply voltage characteristics VAGCCONTVS. Gain OFFSET control supply voltage characteristics AGCCONT control temperature characteristics OFFSET control temperature characteristics VOFFSETVS. OFFSET

Maximum signal amplitude temperature characteristics Gain temperature characteristics Maximum signal amplitude temperature characteristics

Package Outline I) TVPF NO. 1 MAX 6 CHARACTERS I IN SECTION C. I FOR MORF THAN S CHARACTERS FOLLOW RULES FDR ABSP.EV I AT IOHS

Package Outline NOTE: Dimension does not include mold protrusion. NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec-Palladium Pre-Plated Lead Frame). ll TYPE NO. ( MAX 6 CHARACTFPS I IN SECTION C. FOR MORE THAN fi CHARACTERS FQIIQ11 HIRES FOR ABBUFVIAT I DNS. 1