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Part: TLC8188DA
Category:
Sensors
-> Image Sensors
-> CCD
Description: 10-bit, 4 Msps, Cis/linear CCD Sensor Processor
Company: Texas Instruments, Inc.
Datasheet: Download TLC8188DA datasheet File size : 548 kB
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Datasheet text preview:
TLC8188 10-BIT, 4 MSPS, CIS/LINEAR CCD SENSOR PROCESSOR
SLAS177A DECEMBER 1997 REVISED SEPTEMBER 1998
D D D D D D D D D D D D
Supports Both CIS and CCD Sensors 10-Bit, 4 MSPS, A/D Converter Differential Nonlinearity Error: ±0.5 LSB Typ Integral Nonlinearity Error: ±0.6 LSB Typ 8-Bit Offset Correction DAC PGA With 6-Bit Gain Resolution Auto-cycling Gain and Offset Control Single 5-V Supply Operation Very Low Power: 190 mW Typical Control by Parallel and Serial Interface Internal Reference Voltages 32-Pin TSSOP Package
DA PACKAGE (TOP VIEW)
description
The TLC8188 is a highly-integrated monolithic analog signal processor/digitizer designed to interface the contact image sensor (CIS) and linear charge-coupled device (CCD) image sensors in scanner applications. The input of the TLC8188 allows direct connection to the CIS and direct ac coupling of the linear CCD. The TLC8188 performs all the analog processing functions necessary to maximize the dynamic range, correct various errors associated with the CIS and the linear CCD sensors, and then digitize the results with an on-chip analog-to-digital converter (ADC). The key components of the TLC8188 include: input clamp circuitry and a correlated double sampler (CDS), a programmable gain amplifier (PGA) with auto-cycling gain control, a programmable offset correction controlled by a digital-to-analog converter (DAC), a 10-bit, 4 MSPS pipeline ADC, a bidirectional parallel bus and a three-wire serial port for easy microprocessor interface, and internal reference voltages. Designed in advanced CMOS process, the TLC8188 operates from a single 5-V power supply and its digital interface is 3 V compatible. The normal power consumption of the TLC8188 is just 190 mW. Fully integrated analog processing circuitry, high throughput rate, single supply operation and low cost make the TLC8188 an ideal CIS/linear CCD sensor interfacing solution for imaging applications such as scanners and multifunctional office equipment (printer/scanner/facsimile/copier). The device is available in a 32-pin TSSOP package and is specified over the 0°C to 70°C operating temperature range.
AVAILABLE OPTIONS PACKAGED DEVICE TA 0°C to 70°C SMALL OUTLINE (DA) TLC8188CDA
OP0 OP1 OP2 OP3 OP4 DIVDD DIGND OP5 OP6 OP7 OP8 OP9 DVDD DGND ADCCLK SCK/RNW
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
RPO RMO RIN GIN BIN AVDD AGND CLAMP SR SV MA0/ACYC MA1 OE NRESET SEN/STB SDI/DNA
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.
Copyright © 1998, Texas Instruments Incorporated
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
1
TLC8188 10-BIT, 4 MSPS, CIS/LINEAR CCD SENSOR PROCESSOR
SLAS177A DECEMBER 1997 REVISED SEPTEMBER 1998
functional block diagram
CLAMP AVDD RPO RMO DVDD DIVDD
CLAMP
INTERNAL REFERENCE
OE RIN GIN BIN MUX 8-BIT DAC 8 CDS (S/H) PGA 10-BIT ADC THREE STATE LATCHES OP (0 9)
6 ADCCLK MA1 MA0/ACYC SV SR NRESET
MUX
MUX
Control Logic
RED OS
GRN OS
BLUE OS
RED GAIN
GRN GAIN
BLUE GAIN
SERIAL PORT
SDI/DNA SCK/RNW SEN/STB
AGND
DGND
DIGND
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TLC8188 10-BIT, 4 MSPS, CIS/LINEAR CCD SENSOR PROCESSOR
SLAS177A DECEMBER 1997 REVISED SEPTEMBER 1998
Terminal Functions
TERMINAL NAME ADCCLK AGND AVDD BIN CLAMP DGND DIGND DIVDD DVDD GIN MA1, MA0/ACYC NO. 15 26 27 28 25 14 7 6 13 29 21, 22 I I I I I/O I DESCRIPTION ADC conversion clock input. Analog ground Analog supply voltage, 5 V Blue channel input CCD input clamp signal, active high Digital ground Digital interface circuit ground Digital interface circuit supply voltage, 3 V to 5 V Digital supply voltage, 5 V Green channel input MA1 and MA0 select the color to which all internal MUX (input, gain, offset) will point. When in auto-cycling mode, the input mux and internal registers are auto-cycled by the ACYC. The ACYC is a control signal such as a line start pulse that defines the start of a current scanning line. Power-on reset and Interface mode control. If SEN/STB is 1 when NRESET goes high then the device is in parallel configuration data input mode. If SEN/STB is 0 when NRESET goes high then the device is in serial data input mode. Three-state output enable, active low Three-state bi-directional data bus, OP0 and OP1 are output only. Three-state bi-directional data bus. Red channel input Ref output for external decoupling Ref+ output for external decoupling Serial interface: serial clock Parallel interface: 1 OP(92) is output bus, 0 OP(92) is input bus Serial interface: serial interface input data Parallel interface: 1 data, 0 address Serial interface: serial data transfer enable, active high. Parallel interface: strobe, active low. CCD reset level sample pulse input CCD signal level sample pulse input
NRESET
19
I
OE OP(04) OP(59) RIN RMO RPO SCK/RNW SDI/DNA SEN/STB SR SV
20 15 8 12 30 31 32 16 17 18 24 23
I I/O I/O I O O I I I I I
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 6.5 V Analog input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VCC+0.3 V Reference input voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC+0.3 V Digital input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to VCC+0.3 V Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C to 150°C Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
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