TAFE1040 Datasheet, PDF (1/4 Pages) Texas Instruments – 3 V, 10-BIT 42 MSPS, AREA CCD ANALOG FRONT-END

TAFE1040
3 V, 10-BIT 42 MSPS, AREA CCD ANALOG FRONT-END
SLVS284 – FEBRUARY 2000
features
D Single-Chip CCD Analog Front-End
D 10-Bit, 42 MSPS, A/D Converter
D Single 3-V Supply Operation
D Programmable Timing Signal Delays
D Low Power: 180 mW Typ, 2-mW
Power-down Mode
D Differential Nonlinearity Error
– <±0.6 LSB Typ
D Integral Nonlinearity Error
– <±1.5 LSB Typ
D Programmable Gain Amplifier (PGA) With
0 dB to 36 dB Gain Range (0.045 dB/Step)
D Automatic or Programmable Black Level
and Offset Calibration With Digital Filter
and Bad Pixel Limits
D Additional DACs for External Analog
Setting
D Serial Interface for Register Configuration
D Internal Reference Voltages
D 48-Pin TQFP Package
description
applications
D Video Camcorde
D Digital Still Camera
PFB PACKAGE
(TOP VIEW)
AGND5
RBD
RMD
RPD
AVDD5
VSS
AVDD1
AGND1
SR
SV
CLAMP
CLREF
36 35 34 33 32 31 30 29 28 27 26 25
37
24
38
23
39
22
40
21
41
20
42
19
43
18
44
17
45
16
46
15
47
14
48
13
1 2 3 4 5 6 7 8 9 10 11 12
OE
SCKP
DACO2
DACO1
AGND3
AVDD3
DIGND
DIVDD
D9
D8
D7
D6
The TAFE1040 is a complete area CCD analog
front-end/digitizer designed for digital camera
applications. The TAFE1040 performs all the
analog processing functions necessary to max-
mize the dynamic range, corrects various errors associated with the CCD sensor, and then digitizes the results
with an on-chip high-speed analog-to-digital converter (ADC). The key components of the TAFE1040 include:
input clamp circuitry for the CCD and analog video signals, a correlated double sampler (CDS), a programmable
gain amplifier (PGA) with 0 dB to 36 dB gain range, two internal digital-to-analog converters (DAC) for automatic
or programmable optical black level and offset calibration, a 10-bit, 42 MSPS pipeline ADC, a parallel data port
for easy microprocessor interface and a serial port for configuring internal control registers, two additional DACs
for external system control, and internal reference voltages.
Designed in advanced CMOS process, the TAFE1040 operates from a single 3-V power supply with a normal
power consumption of 180 mW at 42 MSPS and a 2-mW power-down mode.
Very high throughput rate, single 3 V operation, low power consumption, and fully integrated analog processing
circuitry make the TAFE1040 an ideal area CCD signal processing solution for the high-resolution digital camera
and camcorder applications.
The part is available in a 48-pin TQFP package and is specified over –20°C to 75°C operating temperature
range.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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Copyright © 2000, Texas Instruments Incorporated
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