LM98513CCMTX/NOPB National Semiconductor, LM98513CCMTX/NOPB Datasheet

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LM98513CCMTX/NOPB

Manufacturer Part Number
LM98513CCMTX/NOPB
Description
IC DIGITAL COPIER 10BIT 56TSSOP
Manufacturer
National Semiconductor
Datasheet

Specifications of LM98513CCMTX/NOPB

Number Of Bits
10
Number Of Channels
2
Voltage - Supply, Analog
3.3V
Voltage - Supply, Digital
3.3V
Package / Case
56-TFSOP (0.240", 6.10mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
Lead Free Status / Rohs Status
Compliant
LM98513 Dual-Channel, 10-Bit, 50 MSPS Copier Signal Processor
General Description
The LM98513 is a fully integrated, high performance 10-Bit, 50
MSPS CCD signal processing solution for digital copiers and
scanners. High-speed signal throughput is achieved with an
innovative 2-channel architecture including sample and hold,
programmable gain and offset correction and analog-to-digital
conversion. The fully differential processing channels show
exceptional noise immunity, having a very low noise floor of -
68dB each. The fast, temperature stable, 8 bit programmable
gain amplifiers are linear-in-dB which enables fine adjustments
to the signal gain and minimizes cross-channel gain error
caused by mismatch in the CCD output circuitry. The
independently controlled offset correction circuits utilize 8-bit
offset DACs to correct signal and cross-channel offsets. The 10-
bit
performance making the LM98513 transparent in the image
reproduction chain.
Applications
System Block Diagram
©
2005 National Semiconductor Corporation
Digital Plain Paper Copiers
Multi-Function Printers
Facsimile Equipment
Desktop Publishing
Flatbed or Handheld Color Scanners
High-speed Document Scanner
analog-to-digital
CCD/CIS Sensor
converters
have
Sensor Drivers
excellent
LM98513
dynamic
Timing Generator
Features
Key Specifications
0.0 dB Gain,1.5 Volt input
10
AV+=DV+=DV+I/O=3.0V
3 Volt Single Power Supply
Low Power CMOS Design
4 Wire Serial Interface
2.5 Volt Data Output Levels
Dual Inputs with Symmetrical Architecture
Even/Odd Channel Offset Correction
Digital Black Level Clamp
Programmable Input Clamp
Maximum Input Level
Input Sampling Rate
PGA Gain Steps
PGA Gain Range
ADC Resolution
ADC Sampling Rate
Noise Floor
Power Dissipation
Operating Temp
Rev 3.3 March 2005
Imager Processor
Motor Controllers
Microcontroller
1.5 Volt peak-peak
www.national.com
415 mW (typical)
0.0 - 20.0 dB
256 Steps
25 MSPS
25 MSPS
0 to 70
-68dB
10-Bit
o
C

Related parts for LM98513CCMTX/NOPB

LM98513CCMTX/NOPB Summary of contents

Page 1

... Facsimile Equipment Desktop Publishing Flatbed or Handheld Color Scanners High-speed Document Scanner System Block Diagram CCD/CIS Sensor Sensor Drivers 2005 National Semiconductor Corporation © Rev 3.3 March 2005 Features 3 Volt Single Power Supply Low Power CMOS Design 4 Wire Serial Interface 2.5 Volt Data Output Levels ...

Page 2

... DV+ DGND Vin Test VREFT ODD SEN AOUT- ODD AOUT+ ODD VCLP ODD VIN ODD SDO AGND AV+ AV+ SCLK SHP 2005 National Semiconductor Corporation © Black Level Offset Clamp / DAC Averaging 10-Bit A/D PGA S/H Converter Black Level Offset S/H Clamp / DAC ...

Page 3

... DV+ 42 0.1µF 10µF DGND 3V 14 DV+ 15 0.1µF DGND 10µ 0.1µF 0.1µF 0.1µF Video Inputs 2005 National Semiconductor Corporation © Commercial (0°C ≤ T ≤ +70°C) A LM98513 CCMT Copier Control Serial Control Bus LM98513 Digital Video Bus ...

Page 4

... VCLP ODD 2005 National Semiconductor Corporation © Description +3.3 Volt power supply for the analog circuits. Bypass supply each supply pin with 0.1µF and 10µF capacitors in parallel. +3.3 Volt power supply for the analog circuits. Bypass supply each supply pin with 0.1µ ...

Page 5

... DOUT8 DOUT9 O D 2005 National Semiconductor Corporation © Description Odd channel analog input signal. AC-couple to imager output through a 0.1µF capacitor. Serial interface output port. Analog ground return. Power supply for the analog circuits. Bypass supply each supply pin with 0.1µF and 10µ ...

Page 6

... Legend: (I=Input), (O=Output), (IO=Bi-directional), (P=Power), (D=Digital), (A=Analog), (PU=Pull Up with an internal 10k (PD=Pull Down with an internal 10K Ω resistor.). 2005 National Semiconductor Corporation © Description Power supply for the digital output driver circuits. Bypass supply each supply pin with 0.1µF and 10µF capacitors in parallel. ...

Page 7

... The following specifications apply for AV+ = DV+ = DV+ I/O = 3.3V, C limits apply for all other limits T MIN MAX Symbol Parameter PWR Average Power Dissipation 2005 National Semiconductor Corporation © Operating Ratings (Notes 1 & 2) 4.2V Operating Temperature Range -0.3V to 4.2V All Supply Voltages -0. Voltage Range ± ...

Page 8

... T MIN MAX Symbol Parameter Resolution Offset Adjustment Range DAC Step Size Temperature Drift Offset Error Vrefp Top of Reference Ladder Vrefn Bottom of Reference Ladder 2005 National Semiconductor Corporation © = 10pF, and f = 25MHz unless otherwise noted. Boldface L MCLK Min Conditions note 9 = 10pF, and f = 25MHz unless otherwise noted ...

Page 9

... Clock Input Rise and Fall Time rc fc Pipeline Delay (Latency) t Data valid time VALID t Output Data Hold Time OH t Output Delay Time OD 2005 National Semiconductor Corporation © = 10pF, and f = 25MHz unless otherwise noted. Boldface L MCLK Min Conditions note 9 PGA Gain = 0.0dB PGA Gain = 20 ...

Page 10

... Note 6: See AN450, “Surface Mounting Methods and Their Effect on Product Reliability”, or the section entitled “Surface Mount” found in any post 1986 National Semiconductor Linear Data Book, for other methods of soldering surface mount devices. Note 7: The analog inputs are protected as shown below. Input voltage magnitude up to 500mV beyond the supply rails will not damage this device ...

Page 11

... Timing shown above is for SHD polarity active-high (Bit [0] in Analog input control register = 1). Digital Output Timing n+1 n+2 EVEN n n+1 n+2 ODD MCLK 10% n-7 n-6 OUTPUT DATA 2005 National Semiconductor Corporation © t SHD Figure 4: Input Sample Timing DIS Figure 5: Digital Output Data Timing 11 n+7 n+8 n+9 n+7 n+8 n+9 t ...

Page 12

... Figure 6. Asserting CLPIN causes the input pin (Vin shorted to the voltage VCLP, as shown in Figure 7. There are three modes available to control precisely where the CLPIN pulse will clamp the CCD waveform.These 2005 National Semiconductor Corporation © Optical Black Pixels Dummy Pixels ...

Page 13

... VREFP 0.1µF VREFN 0.1µF 200−510 Ω 2005 National Semiconductor Corporation © generated by the DAC. The offset integration scaling factor is stored in two bits of the black level clamp control register, and Black Level Register the values available range from full offset to offset divided-by-16. ...

Page 14

... BLKCLP signal activates the digital black clamp loop and the black level is steered toward the value stored in the output black level register. The digital black clamp loop is only limited in it’s 2005 National Semiconductor Corporation © range by the offset DAC’s range (see “offset level DAC Range Adjustment on page 21” ...

Page 15

... Mnemonic OBL Type: Read/Write Reset Value 0010 0000 Binary Bit Bit Symbol Description [7:0] Black Level 0 - 256 output black level digital code value. 2005 National Semiconductor Corporation © Address Default Value 0000 0001 0010 0011 0100 0101 0110 0111 1000 1000 0000 (128d) ...

Page 16

... Signed Digital representation of the offset Offset Level level to be applied to the input of the PGA. Please see Figure 11 for details regarding the DAC input format. 2005 National Semiconductor Corporation © Software Control Registers Register Name Even Channel Software Control Address A Hex Mnemonic ...

Page 17

... Bias level is relative the value of the binary number stored. [1:0] PGA Stage Adjusts the power level of the 2 Amplifier PGA stage 2 amplifier. The power Bias level is relative the value of the binary number stored. 2005 National Semiconductor Corporation © The The power 17 www.national.com ...

Page 18

... SO DATA Figure 14: Serial Interface Read Command Timing t t SENW IH SCLK SEN SI DATA XX 0 CE1 CE0 DATA Figure 15: Serial Interface Write Command Timing 2005 National Semiconductor Corporation © = 10pF, and f L MCLK (Note 7) A Min Conditions note 9 36 40/ MCLK must be active ...

Page 19

... Power-On and Reset Timing Details CE1-CE0 Power-On or Reset 2005 National Semiconductor Corporation © Reading the serial registers To read the serial registers, the timing diagram shown in Figure 14 must be met.When SEN is toggled low, and data is loaded as described above in the writing sequence. When SEN toggles high, the new 15 bit word is considered, except this time the read/write bit should indicating a read ...

Page 20

... PGA Gain Plots Figure 17: PGA Gain (Linear Scale) vs. PGA Gain Code Figure 18: PGA Gain (Logarithmic Scale) vs. PGA Gain Code 2005 National Semiconductor Corporation © Max. Gain = 20.0 dB PGA Gain Code PGA Gain Code 20 Max. Gain = 10 www.national.com ...

Page 21

... DAC input code step. Therefore, the offset DAC is limited to providing offset values less than or equal to ±64 LSB at the ADC output. In some applications, this range of output may 2005 National Semiconductor Corporation © Figure 19: Recommended Layout Pattern not be sufficient possible to increase the range of the DAC by adjusting the DAC reference range ...

Page 22

... LM98513. Common Application Pitfalls Driving the inputs (analog or digital) beyond the power supply potential. For proper operation, all input potentials should not be greater than 300mV above that of the power supply not 2005 National Semiconductor Corporation © AV+ VREFT Ladder ...

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... National Semiconductor Corporation © 23 www.national.com ...

Page 24

... NATIONAL'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support ...

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