MB40178 Fujitsu Microelectronics, Inc., MB40178 Datasheet

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MB40178

Manufacturer Part Number
MB40178
Description
Single Chip 8-bit A/d And 9-bit D/a Converter
Manufacturer
Fujitsu Microelectronics, Inc.
Datasheet
FUJITSU SEMICONDUCTOR
ASSP
Single Chip 8-Bit A/D and 9-Bit
D/A Converter
MB40168/MB40178
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that
normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
DESCRIPTION
FEATURES
• Resolution
• Conversion Rate
• Linearity Error
• On-chip reference voltage generator (resistor divided method) and clamp circuit
• Analog Input Voltage
• Analog Output Voltage
PACKAGES
The Fujitsu MB40168 and MB40178 are high speed, low power single chip A/D and D/A converters designed
for video processing applications. The A/D converter has a resolution of 8 bits while the D/A converter has 9-
bit resolution. They are fabricated in Fujitsu’s advanced bipolar technology, and housed in a 48-pin plastic shrink
DIP or 44-pin plastic QFP package.
DATA SHEET
48 pin, Plastic SH-DIP
(DIP-48P-M01)
A/D: 8 bits
D/A: 9 bits
A/D: Max. 20 MSPS
D/A: Max. 40 MSPS
A/D: Max. + 0.3%
D/A: Max. + 0.2%
0 to 3 V in 1.95 V
3 to 5 V without clamp circuit
3 to 5 V
P-P
clamp circuit
44 pin, Plastic QFP
(FPT-44P-M11)
DS04-28501-2E
(Continued)

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MB40178 Summary of contents

Page 1

... MB40168/MB40178 DESCRIPTION The Fujitsu MB40168 and MB40178 are high speed, low power single chip A/D and D/A converters designed for video processing applications. The A/D converter has a resolution of 8 bits while the D/A converter has 9- bit resolution. They are fabricated in Fujitsu’s advanced bipolar technology, and housed in a 48-pin plastic shrink DIP or 44-pin plastic QFP package ...

Page 2

... MB40168/MB40178 (Continued) • Digital Input/Output Interface • Power Supply Voltage • Power Dissipation • Package Options PIN ASSIGNMENTS • MB40168 (MSB (LSB ...

Page 3

... MB40178 (TOP VIEW (LSB (LSB (FPT-44P-M11) MB40168/MB40178 (TOP VIEW) D.GND 1 48 DACLK 2 47 ...

Page 4

... 11 *1: MB40168 (MSB: 6 pin, LSB: 42 pin), MB40178 (MSB: 42 pin, LSB: 6 pin) *2: MB40168 (MSB: 11 pin, LSB: 3 pin), MB40178 (MSB: 3 pin, LSB: 11 pin) 4 I/O Name & Function — Digital Power Supply pins (+ 5 V). — Analog Power Supply pins (+ 5 V). Digital Ground (0 V). These pins should be connected to the — ...

Page 5

... INC V OUTC Clamp 0.6V + 50mV CCA V CLMP 0.6VCCA V REF V RIN DACLK D (LSB) D9 Master 9 9 Input Slave buffer register D (MSB) D1 MB40168/MB40178 V V CCD CCA 255 to 8 Encoder Reference voltage generator Reference Amp resistor Buffer Current switch DGND AGND D (MSB Latch D & ...

Page 6

... MB40168/MB40178 ABSOLUTE MAXIMUM RATINGS Parameter Power supply voltage Analog input voltage Reference voltage Clamp circuit input voltage Digital input voltage Storage temperature Note: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet. ...

Page 7

... Hold time Clamp capacitance Phase compensation capacitance Ambient operating temperature *1: V and V must be used in the same voltage level. CCA CCD *2: V must have an amplitude of V INC * must have 2.0V 0.1V MB40168/MB40178 Symbol Min 4.75 CCA CCD , V 0 INC V V INA – ...

Page 8

... MB40168/MB40178 ELECTRICAL CHARACTERISTICS 1. DC Characteristics • Analog Block Parameter Symbol ADC resolution — DAC resolution — ADC linearity error LE DAC linearity error LE Analog input equivalent R INA impedance Analog input capacitance C INA Analog input high current I IHA Analog input low current I ILA ...

Page 9

... Digital input low curent I ILD 2. AC CHARACTERISTICS Parameter A/D Maximum conversion rate D/A Digital output delay time Analog output delay time Analog output rise time Analog output fall time Settling time MB40168/MB40178 ( 4. 5. –20 CCA CCD Condition Min –400 A 2 1.6 mA — ...

Page 10

... MB40168/MB40178 LINEARITY ERROR OF A/D CONVERSION • Ideal Characteristic Step Output Code 255 11111111 254 11111110 253 11111101 129 10000001 128 10000000 127 01111111 2 00000010 1 00000001 0 00000000 Note: The values for V and V are typical values under conditions that • Actual Characteristic Step ...

Page 11

... CALCULATION OF DAC OUTPUT VOLTAGE WHEN THE IDEAL CONVERSION IS PER- FORMED 511-N AOUT = V – – CCA CCA 512 (N: Digital code (0 ~ 511 OFS CCA 511 – – OZS CCA CCA RIN 512 MB40168/MB40178 (V ) CCA V OFS V OZS (V ) RIN ) RIN Output A.OUT 5.000V 5.000V 3.004V 3.000V 1 LSB = 4mV 11 ...

Page 12

... MB40168/MB40178 EQUIVALENT CIRCUITS OF ADC BLOCK • Analog Input Equivalent Circuit V CCA V INA A.GND C : Junction Capacitance of non-linear emitter follower INA R : Linear resistance model of input current by the comparator switching INA V < INA RB CLK = “H” This is the voltage Constant input bias current ...

Page 13

... Digital Input Equivalent Circuit V CCD 50k Clock Input ADCLK • Digital Output Load Circuit To pin tested NOTE: C includes the floating capacitance of probe and jig. L MB40168/MB40178 6.5k 50k 3.2k 3. 1.4V TH D.GND Test point C = 15pF L D.GND 13 ...

Page 14

... MB40168/MB40178 EQUIVALENT CIRCUITS OF DAC BLOCK • Digital Input Equivalent Circuit V CCD Digital Input DACLK D.GND • Analog Output Equivalent Circuit V CCA A.GND • Reference Voltage Generator Equivalent Circuit V CCA A.GND 14 50k 50k R = 240 O A.OUT I O 20k Buffer 30k V = 1.4V TH ...

Page 15

... V External Circuit Video Signal Input MB40168/MB40178 Pin INC + CCA V INC V OUTC MB40168/MB40178 V CLMP V INA AGND DGND and V CLMP INA + INC V OUTC V CLMP 2 INA 2SA933 AGND CCD Pins + CCA CCD MB40168/MB40178 AGND DGND 15 ...

Page 16

... MB40168/MB40178 CLAMP CIRCUIT OPERATION V INC V OUTC - C CLMP + V CLMP V INA Signal Level at V INC Note: When Clamp Circuit is not applied the signals should be connected as follows Connect to GND. INC V : Leave open. OUTC V : Leave open. CLMP 16 Clamp Circuit Clamp Voltage is set at 0 (typ.) ...

Page 17

... Digiral D Output 17 A6 (DAC ADC (MSB) D Clock 22 A1 Input 23 ADCLK 24 DGND MB40168/MB40178 AGND CCD V 46 CCA A 45 OUT 44 COMP V 43 RIN V 42 REF DGND MB40168 AGND CCD ...

Page 18

... MB40168/MB40178 NOTES ON PCB LAYOUT Power Supply Lines The device’s power supply lines (V be separated in so far as possible from other digital lines in order to reduce noise. Also the track widths of these lines should be as wide as possible to reduce parasitic impedance. Coupling Capacitors The device’s power supply lines V be decoupled to analog ground by means of approx ...

Page 19

... MIN +0.50 1.00 –0 +.020 .039 –0 1.778±0.18 (.070±.007) 1.778(.070) 40.894(1.610)REF MAX 1994 FUJITSU LIMITED D48002S-3C-3 C MB40168/MB40178 +0.20 –0.30 +.008 –.012 13.80±0.25 (.543±.010) 0.51(.020)MIN 0.25±0.05 (.010±.002) 0.45±0.10 (.018±.004) 15.24(.600) TYP 15°MAX Dimensions in mm (inches) ...

Page 20

... MB40168/MB40178 44 pin, Plastic QFP (FPT-44P-M11) 14.40±0.40 SQ (.567±.016) 10.00±0.20 SQ (.394±.008 INDEX "A" 44 LEAD No. 1 0.80(.0315)TYP 0.30±0.10 (.012±.004) 0.10(.004) 1994 FUJITSU LIMITED F44018S-1C 2.35(.093)MAX 0.05(.002)MIN (STAND OFF 8.00 11.60±0.30 (.315) (.457±.012) REF ...

Page 21

... MB40168/MB40178 FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211-88, Japan Tel: (044) 754-3753 Fax: (044) 754-3329 North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, U ...

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