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PDF BL1208H Data sheet ( Hoja de datos )
| Número de pieza | BL1208H | |
| Descripción | 10BIT 5MSPS ADC | |
| Fabricantes | Samsung | |
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110B0IBTI5TMS5PMS ASDPCS ADC
BL1B2L0182H08H
GENERAL DESCRIPTION
FEATURES
The BL1208H is a CMOS 10-bit A/D converter for
video applications. It is a three-step pipelined A/D
converter which consists of sample & hold, three
multiplying DACs, a 4-bit flash adc and three 3-bit
flash adcs.
The maximum conversion rate of BL1208H is 5MSPS
and supply voltage is 5V single.
- Resolution : 10Bit
- Differential Linearity Error : ±1.0 LSB
- Integral Linearity Error : ±1.0 LSB
- Maximum Conversion Rate : 5MSPS
- Sample & Hold Function Implemented
- Low Power Consumption : 100mW
- Power Supply : 5V Single
- Operation Temperature Range : -40ºC ~85ºC
TYPICAL APPLICATIONS
- PC or computer based video signal processing such
as multi-media, scanner, etc.
- General Purpose video applications including
camcorder, digital video, broad-casting and studio
equipments.
- Medical electronics such as digital scope, transit
recorder, radar.
FUNCTIONAL BLOCK DIAGRAM
AINT
sah
mdac1
mdac2
mdac3
VREF
AGND
REFMID
ITEST
STBY
refgen
flash1
mbias
flash2
flash3
flash4
dclogic
ckgen
CKIN
Ver 1.1 (Feb. 2000)
No responsibility is assumed by SEC for its use nor for any
infringements of patents or other rights of third parties that may
result from its use. The content of this datasheet is subject to
change without any notice
SEC ASIC
STCB
EOC
DO[9:0]
OVF
UDF
ANALOG
Free Datasheet http://www.datasheet-pdf.com/
1 page  
10BIT 5MSPS ADC
TIMING DIAGRAM( Main Function )
AINT
BL1208H
CKIN
SHA
FLASH1
MDAC1
FLASH2
MDAC2
FLASH3
MDAC3
FLASH4
hold track hold track hold track hold track hold track
ref sample amplify
precharge
latch
track
latch
encoding
input residue input residue
sample amplify sample amplify
ref sample amplify
precharge
latch
track
latch
encoding
input residue input residue
sample amplify sample amplify
ref sample amplify
precharge
latch
track
latch
encoding
input residue input residue
sample amplify sample amplify
ref sample amplify
precharge
latch
track
latch
encoding
DATA
DATA
SEC ASIC
5 / 12
ANALOG
Free Datasheet http://www.datasheet-pdf.com/
5 Page 
10BIT 5MSPS ADC
USER GUIDE
BL1208H
1. Resolution Control.
- Modular structure is the most important feature of BL1208H.
- You can get any resolution you want by combining each primary module (MDAC + FLASH) without major
circuit change.
- It means you don't have to redesign the most difficult analog block for another resolution.
- But this simple resolution control method has a limit up to 10bits, otherwise the internal op-amp must be
redesigned.
module
ain sha
mdac1
mdac2
mdac3
flash1
flash2
flash3
flash4
dclogic
10bit
2. Speed Up
- The initial target speed of BL1208H was 5MHz, but it proved to operate well at 10MHz or more due to a
lot of design margin.
3. Input Range Variation.
- The default of the input of this ADC is single 0V ~ +3.2V.
- The bias voltage of AINT is 0V~3.2V..
- In order to alter to another input voltage range, change the voltage values of AINT after setting VREF to the
maximum value of input range.
4. Verilog Modeling
- Verilog modeling needs 64bits for only one analog real signal.
SEC ASIC
11 / 12
ANALOG
Free Datasheet http://www.datasheet-pdf.com/
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet BL1208H.PDF ] | |
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