FUJITSU SEMICONDUCTOR DATA SHEET DS04-28308-3E ASSP 2-Channel 8-BIT D/A Converter MB40968/40968V DESCRIPTION The Fujitsu MB40968/40968V is a 2-channel 8-bit high speed digital to analog converter for video frequency band fabricated by Fujitsu Advanced Bipolar Technology. This is suitable for YC signal processing of digital VCR. FEATURES * * * * * Resolution: 8-bits Linearity error: 0.2% (max.) Maximum conversion rate: 30 MHz (Min.) Analog output voltage range: 3 to 5V Reference voltage output: MB40968: Resistance-type potential divider output (3/5 x VCCA) MB40968V: Band gap reference output (VCCA - 2 [V]) * Digital input voltage: * Single power supply voltage: * Power dissipation: TTL level +5.0 [V] 270 [mW] (typ) PACKAGE Plastic DIP, 28 pin Plastic FTP, 28 pin (DIP-28P-M03) (FTP-28P-M01) MB40968/40968V PIN ASSIGNMENT (TOP VIEW) 1 28 A4 A6 2 27 A3 A7 3 26 A2 A 8(LSB) 4 25 A 1(MSB) V CCD A5 CLKA 5 24 B 1(MSB) 6 23 V CCA B2 7 22 A OUT B3 8 21 A.GND B4 9 20 B OUT B5 10 19 V CCA B6 11 18 V RIN B7 12 17 V ROUT B 8(LSB) 13 16 COMP 14 15 D.GND CLKB 2 MB40968/40968V PIN DESCRIPTION Pin Number Symbol I/O Descriptions 25 to 28 1 to 4 A1 to A8 I A-channel Digital Signal Inputs: A1 (MSB), A8 (LSB) 6 to 13 B1 to B8 I B- channel Digital Signal Inputs: B1 (MSB), B8 (LSB) 5 CLKA I A-channel Clock Input 14 CLKB I B-channel Clock Input 24 VCCD -- Power Supply for Digital Circuit 19, 23 VCCA -- Power Supply for Analog Circuit, two pins (19,23) should be used. 15 D-GND -- Ground for Digital Circuit 21 A-GND -- Ground for Analog Circuit I Terminal for reference voltage input. Zero scale voltage of analog output is specified applying any voltage to this terminal. Input reference voltage should be 2.7 to 4.3V and, VCCA - VRIN 2.2V O Terminal for reference voltage output by resistance-type potential divider. Analog output of "VCCA to 3/5 x VCCA" is supplied connecting this terminal with VRIN terminal. MB40968V VROUT O Terminal for reference voltage output consists of Band Gap reference. This terminal supplies the voltage of "VCCA to VCCA - 2V". 2V output is maintained connecting this terminal with VRIN, even if the power supply fluctuates frequently. 16 COMP -- Terminal for phase compensation capacitance; Capacitance of 1 F or more should be inserted between COMP and AGND. 22 AOUT O A-channel Analog Signal Output 20 BOUT O B-channel Analog Signal Output 18 VRIN MB40968 VROUT 17 3 MB40968/40968V BLOCK DIAGRAM CLK A A-OUT A 1(MSB) A2 A3 A4 A5 Input Buffer 8 Master Slave F-F Buffer 8 8 Current Switch A6 A7 A 8(LSB) (A) (A) (A) (A) CLK B B-OUT B 1(MSB) B2 B3 B4 B5 Input Buffer 8 Master Slave F-F Buffer 8 8 Current Switch B6 B7 B 8(LSB) (B) (B) (B) (B) Reference Resistor AMP. Reference Voltage D.GND 4 A.GND V ROUT V RIN COMP V CCD V CCA MB40968/40968V ABSOLUTE MAXIMUM RATINGS Rating Symbol Value Unit Power supply voltage VCCA, VCCD -0.5 to +7.0 V Supply voltage difference VCCD - VCCA 1.5 V Digital input voltage VID -0.5 to +7.0 V Storage temperature TSTG -55 to +125 C Precautions: 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. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. RECOMMENDED OPERATING CONDITIONS Parameter Symbol Value Unit Min. Typ. Max. VCCA, VCCD (VCCA - VCCD) 4.75 (-0.2) 5.00 5.25 (0.2) VCCA - VRIN 0.70 2.00 2.20 VRIN 2.70 3.00 4.30 High level digital Input voltage VIHD 2.0 -- -- V Low level digital input voltage VILD -- -- 0.8 V Clock frequency fCLK -- -- 30 MHz Data set up time tSU 10.0 -- -- ns Data hold time th 4.0 -- -- ns High level clock pulse width tWH 10.0 -- -- ns Low level clock pulse width tWL 10.0 -- -- ns CCOMP 1.0 -- -- F Top 0 -- 70 C Power supply voltage Analog reference voltage Phase compensation capacitance Operating temperature V V 5 MB40968/40968V ELECTRICAL CHARACTERISTICS Parameter Symbol Condition Resolution -- -- Linearity error LE Reference input current (VCC = 4.75 to 5.25V, Ta = 0 to 70C) Value Unit Min. Typ. Max. -- -- 8 Bit DC -- -- 0.2 % IRIN VRIN = 3.000 (V) -- -- 10 A High level digital input current IIHD VIHD = 2.7 (V) -- -- 20 A Low level digital input current IILD VILD = 0.4 (V) -100 -- -- A 2-channel's output voltage ratio FSR*1 VCCA = 5.00 (V) VCCD = 5.00 (V) VRIN = VROUT 0 -- 4 % Full-scale analog output voltage VOFS VCCA = 5.00 (V) VCCD = 5.00 (V) VRIN = VROUT VCCA -0.015 VCCA -- V Zero-scale analog output voltage VOZS VCCA = 5.00 (V) VCCD = 5.00 (V) VRIN = 3.000 (V) 2.938 3.008 3.078 V 192 240 288 Output resistance RO Ta = 25C Power supply current ICC VCCA = 5.25 (V) VCCD = 5.25 (V) VRIN = VROUT -- 54*2 80 mA VROUT VCCA = 5.00 (V) VCCD = 5.00 (V) 2.900 3.000 3.100 V V OFS ( A ) - V OZS ( A ) V OFS ( B ) - V OZS ( B ) *1: FSR = ------------------------------------------------- - 1 x 100 % *2: VCC = 5.00 (V) MB40968 Reference output voltage MB40968V 6 Reference output voltage VROUT -- VCCA -2.100 VCCA -2.000 VCCA -1.900 V Reference output voltage temperature constant -- -- -- 100 -- ppm/C MB40968/40968V Switching Characteristics Parameter (VCC = 4.75 to 5.25V, Ta = 0 to 70C) Value Unit Min. Typ. Max. Symbol Condition Minimum conversion rate Fs -- 30 -- -- MSPS Output delay time tPLH tPHL CL = 15 pF -- 10 -- ns Terminated A.OUT pin with 240 -- 5 -- ns -- 5 -- ns Terminated B.OUT pin with 240 -- 15 -- ns Output rise time tr Output fall time tf Settling time tsetLH tsetHL 7 MB40968/40968V Figure 1 DAC Output Voltage Input Output A1-8 B1-8 A OUT B OUT (V CCA) FF V OFS 5.000 V 5.000 V 00 V OZS (V RIN) 3.008 V 3.000 V 1 LSB = 8 mV Figure 2 Timing Diagram t su th 3V Data Input 1.5V 0V t wH t wL 3V 1.5V Clock Output 0V 1/2 LSB 90% 50% 1/2 LSB 10% V OZS Analog Output tr tf t PHL t PLH t setLH 8 t setHL MB40968/40968V Figure 3 Digital Input Equivalent Circuit (A1 to A8, B1 to B8, CLKA, CLKB) V CCD 50 k 50 k Threshold Voltage 1.4 V Degital Input D.GND Figure 4 Analog Output Equivalent Circuit (AOUT, BOUT) Figure 5 MB40968 Reference Output Voltage (VROUT) V CCA V CCA R 0 = 240 4 k V ROUT Analog Output 6 k IO A.GND A.GND Figure 6 MB40968V Reference Output Voltage (VROUT) V CCA B.G.R RS* V ROUT + Note*:Reference for preventing over current when short circuit with GND. 9 MB40968/40968V The relations between Digital input code and Analog output voltage of MB40968/40968V are ideally indicated as follows. 255 - N AOUT N ( BOUT N ) = V CCA - -------------------- x ( V CCA - V RIN ) 256 N: 0 to 255 Digital Input Code V OFS = V CCA 255 V OZS = V CCA - ---------- x ( V CCA - V RIN ) 256 Output Voltage Ratio between 2 channels is calculated as follows. V OFS ( A ) - V OZS ( A ) FSR = ------------------------------------------------- - 1 x 100% V OFS ( B ) - V OZS ( B ) 10 MB40968/40968V TYPICAL CONNECTION EXAMPLE 5V 2.2H 0.01F 47F V CCD 2.2H 47F 0.01F V CCA A 1 to A 8 A OUT B 1 to B 8 B OUT DATA Input CLK Input CLK A CLK B D.GND V RIN V ROUT COMP A.GND 1F 11 MB40968/40968V PRECAUTIONS 1. Inter-channel Crosstalk The MB88361 is a 2-channel D/A converter, requiring the use of special mounting methods to minimize crosstalk between analog output pins. Specifically, it is recommended that PC board designs should emphasize the prevention of large coupling capacities between analog output lines. (See TYPICAL CHARACTERISTIC CURVES.) 2. Prevention of Switching Noise To reduce superimposed switching noise on the analog output signal to an absolute minimum, it is recommended that a noise limiting capacitor between the VCCA and VCCD pins be placed as close as possible to the pins and connected to the A.GND and D.GND pins. 3. Power Supply Patterns Power supply patterns connected to the A.GND and B.GND pins should be as possible in order to reduce parasitic impedance. 12 MB40968/40968V TYPICAL CHARACTERISTIC CURVES Figure 7 Power Supply Current vs. Operating Temperature Figure 8 Linearity Error vs. Operating Temperature 0.2 V CC=5.25 V V RIN=V ROUT V CC=5.00 V V RIN=3.000 V 80 Linearity Error |LE|(%) Power Supply Current I CC(mA) 100 60 40 20 0 -25 0 25 50 75 0.15 0.1 0.05 0 -25 100 Operating Temperature Ta(C) 260 240 220 50 75 100 Full-Scale Analog Output Voltage V OFS(V) Output Resistance R O() 280 25 V CC (reference) -6 -8 -10 -25 3.000 2.950 Operation Temperature Ta(C) 25 50 75 100 Figure 12 MB40968 Reference Output Voltage vs. Operating Temperature Reference Output Voltage V ROUT(V) Zero-Scale Analog Output Voltage V OZS(V) 3.050 75 0 3.100 V CC=5.00 V V RIN=3.000 V 50 V CC=5.00 V V RIN=V ROUT -4 3.100 25 100 Operating Temperature Ta(C) Figure 11 Zero-Scale Analog Output Voltage vs. Operating Temperature 0 75 -2 Operating Temperature Ta(C) 2.900 -25 50 Figure 10 Full-Scale Analog Output Voltage vs. Operating Temperature 300 0 25 Operating Temperature Ta(C) Figure 9 Output Resistance vs. Operating Temperature 200 -25 0 100 V CC=5.00 V 3.050 3.000 2.950 2.900 -25 0 25 50 75 100 Operating Temperature Ta(C) (Continued) 13 MB40968/40968V Reference Output Voltage V ROUT(V) 3.200 V CC=5.00 V 3.100 3.000 2.900 2.800 -25 0 25 50 75 100 Figure 14 MB40968V Analog Reference Voltage vs. Power Supply Voltage Power Supply Voltage-Analog Reference Voltage [V CC-V ROUT](V) Figure 13 MB40968V Reference Output Voltage vs. Operating Temperature 2.200 Ta=+25C 2.100 2.000 1.900 1.800 3.5 Operating Temperature Ta(C) Data Set Up Time t SU(ns) Data Set Up Time t SU(ns) 6 4 2 75 8 6 4 2 0 3.5 100 Operating Temperature Ta(C) 4.0 4.5 5.0 6.0 Figure 18 Data Hold Time vs. Power Supply Voltage 6 6 Ta=+25C V CC=5.00 V 4 Data Hold Time t h(ns) Data Hold Time t h(ns) 5.5 Power Supply Voltage V CC(V) Figure 17 Data Hold Time vs. Operating Temperature 2 0 4 2 0 -2 -2 -4 -25 6.0 Ta=+25C 8 50 5.5 10 V CC=5.00 V 25 5.0 Figure 16 Data Set Up Time vs. Power Supply Voltage 10 0 4.5 Power Supply Voltage V CC(V) Figure 15 Data Set Up Time vs. Operating Temperature 0 -25 4.0 0 25 50 75 Operating Temperature Ta(C) 100 -4 3.5 4.0 4.5 5.0 5.5 6.0 Power Supply Voltage V CC(V) (Continued) 14 MB40968/40968V (Continued) 20 16 V CC=5.00 V V RIN=V ROUT C L=15 pF tr 12 tf 8 tr 4 0 -25 OUTPUT OPEN (2 V amplitude) tf 0 25 OUTPUT 240 (1 V amplitude) 50 75 100 Figure 20 Output Rise, Fall Time vs. Power Supply Voltage Output Rise Time t r Output Fall Time t f(ns) Output Rise Time t r Output Fall Time t f (ns) Figure 19 Output Rise, Fall Time vs. Operating Temperature 20 Ta=25C V RIN=V ROUT C L=15 pF 16 12 OUTPUT OPEN (2 V amplitude) tr tf 8 tr 4 OUTPUT 240 (1 V amplitude) 0 3.5 Operating Temperature Ta(C) 20 Output Delay Time t PHL,t PLH(ns) Output Delay Time t PHL,t PLH(ns) V CC=5.00 V V RIN=V ROUT C L=15 pF OUTPUT OPEN (2 V amplitude) 8 OUTPUT 240 (1 V amplitude) 4 0 -25 0 25 50 75 16 8 6 t WL t WH 2 75 Operating Temperature Ta(C) 4.0 4.5 5.0 5.5 6.0 10 Ta=25C Clock Pulse Width t W (ns) Clock Pulse Width t W (ns) 8 50 OUTPUT 240 (1 V amplitude) 4 Figure 24 Clock Pulse Width vs. Power Supply Voltage V CC=5.00 V 25 Ta=25C V RIN=V ROUT C L=15 pF Power Suppry Voltage V CC(V) 10 0 6.0 OUTPUT OPEN (2 V amplitude) 0 3.5 100 Figure 23 Clock Pulse Width vs. Operating Temperature 0 -25 5.5 12 Operating Temperature Ta(C) 4 5.0 Figure 22 Output Delay Time vs. Power Supply Voltage 20 12 4.5 Power Supply Voltage V CC(V) Figure 21 Output Delay Time vs. Operating Temperature 16 4.0 tf 100 8 6 4 t WL 2 0 3.5 t WH 4.0 4.5 5.0 5.5 6.0 Power Supply Voltage V CC(V) 15 MB40968/40968V PACKAGE DIMENSION Plastic DIP, 28 pin (DIP-28P-M03) +0.20 26.00 -0.30 1.024 +.008 -.012 INDEX-1 9.100.25 (.358.010) INDEX-2 4.85(.191)MAX 0.51(.020)MIN 0.250.05 (.010.002) 3.00(.118)MIN 0.450.10 (.018.004) +0.50 1.00 -0 +.020 .039 -0 1.7780.18 (.070.007) 1.778(.070) MAX 10.16(.400) TYP 15MAX 23.114(.910)REF Dimensions in mm (inch) C 16 1994 FUJITSU LIMITED D28012S-3C-3 MB40968/40968V Plastic FTP, 28 pin (FTP-28P-M01) +0.25 +.010 17.75 -0.20 .699 -.008 2.80(.110)MAX 0.05(.002)MIN (STAND OFF) 7.600.30 10.200.40 (.299.012) (.402.016) 9.200.30 (.362.012) 1 PIN INDEX 1.27(.050)TYP 0.450.10 (.018.004) +0.05 O0.13(.005) M 0.15 -0.02 +.002 .006 -.001 0.500.20 (.020.008) Details of "A" part 0.20(.008) 0.10(.004) "A" 16.51(.650)REF 0.60(.024) 0.18(.007)MAX 0.68(.027)MAX C 1994 FUJITSU LIMITED F28005S-5C-4 Dimensions in mm (inch) 17 MB40968/40968V 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.S.A. Tel: (408) 922-9000 Fax: (408) 432-9044/9045 Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE. LIMITED No. 51 Bras Basah Road, Plaza By The Park, #06-04 to #06-07 Singapore 189554 Tel: 336-1600 Fax: 336-1609 All Rights Reserved. Circuit diagrams utilizing Fujitsu products are included as a means of illustrating typical semiconductor applications. Complete information sufficient for construction purposes is not necessarily given. The information contained in this document has been carefully checked and is believed to be reliable. However, Fujitsu assumes no responsibility for inaccuracies. The information contained in this document does not convey any license under the copyrights, patent rights or trademarks claimed and owned by Fujitsu. Fujitsu reserves the right to change products or specifications without notice. No part of this publication may be copied or reproduced in any form or by any means, or transferred to any third party without prior written consent of Fujitsu. The information contained in this document are not intended for use with equipments which require extremely high reliability such as aerospace equipments, undersea repeaters, nuclear control systems or medical equipments for life support. F9607 FUJITSU LIMITED 18 Printed in Japan