TLV990-13_16 Datasheet, PDF (1/24 Pages) Texas Instruments – 3-V, 10-BIT, 13-MSPS AREA CCD ANALOG FRONT END

TLV990-13
3-V, 10-BIT, 13-MSPS AREA CCD ANALOG FRONT END
SLAS282 – JULY 2000
features
D Single-Chip CCD Analog Front-End
D 10-Bit, 13-MSPS, Single 3-V Supply
Operation A/D Converter
D Very Low Power: 150-mW Typical, 2-mW
Power-Down Mode
D Differential Nonlinearity Error:
< ±0.5 LSB Typical
D Integral Nonlinearity Error:
< ±0.9 LSB Typical
D Programmable Gain Amplifier (PGA) With
0-dB to 36-dB Gain Range (0.045 dB/Step)
D Automatic or Programmable Optical 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
application
D Digital Still Camera
D PC Camera
PFB PACKAGE
(TOP VIEW)
AGND5
RBD
RMD
RPD
AV_DD5
V_SS
AV_DD1
AGND1
SR
SV
CLCCD
CLREF
36 35 34 33 32 31 30 29 28 27 26 25
37
24
38
23
39
22
40
21
41
20
42
TLV990–13PFB
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
AV_DD3
DIGND
DIV_DD
D9
D8
D7
D6
The TLV990-13 is a complete CCD signal
processor/digitizer designed for digital still
camera and PC camera applications. The
TLV990-13 performs all the analog-processing
functions necessary to maximize 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 TLV990-13 include: an input clamp circuit for CCD signal, a correlated double
sampler (CDS), a programmable-gain amplifier (PGA) with 0 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, 13-MSPS
pipeline ADC, a parallel data port for easy microprocessor interface, 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 TLV990-13 operates from a single 3-V power supply with a normal
power consumption of 150 mW at 13 MSPS and 2 mW in power-down mode.
Its single 3-V operation, very low-power consumption, and fully-integrated analog-processing circuitry make the
TLV990-13 an ideal CCD signal-processing solution for digital still cameras and PC camera applications.
This device is available in a 48-pin TQFP package and is specified over a –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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2000, Texas Instruments Incorporated
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