DATA SHEET m@ DESCRIPTION DS04-28308-3E 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. m@ FEATURES * Resolution: * Linearity error: * Maximum convers * Analog output volt * Reference voltage ion rate: age range: output: 8-bits +0.2% (max.)} 30 MHz (Min.) 3 to 5V 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: m@ PACKAGE TTL level +5.0 [V] 270 [mW] (typ) Plastic DIP, 28 pin (DIP-28P-M03) Plastic FTP, 28 pin (FTP-28P-M01)MB40968/40968V m@ PIN ASSIGNMENT (TOP VIEW) As [| 1 28] Aa As [| 2 27] As Ar [] 3 26] Az Ae(LSB) [] 4 25 [[] A.(MSB) CLKA [] 5 24] Veco B1(MSB) [] 6 23 [] Veca Be CO 7 22 | Aout Bs [| 8 21] AGND Ba CO 9 20 | Bout Bs CO 10 19 | Veca Be Oo 11 18 | V RIN B7 CO 12 17 | V Rout BaLsB) [] 13 16[_] comp cLKB [] 14 15(-] p.anDm@ PIN DESCRIPTION MB40968/40968V Pin Number | Symbol 0 Descriptions 25 to 28 - , ; 1to4 Ai to Ag | A-channel Digital Signal Inputs: A1 (MSB), As (LSB) 6 to 13 Bi to Bs | B- channel Digital Signal Inputs: Bi (MSB), Bs (LSB) 5 CLKa | A-channel Clock Input 14 CLKs | B-channel Clock Input 24 Vecp _ Power Supply for Digital Circuit 19, 23 Voca _ 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 Terminal for reference voltage input. Zero scale voltage of analog output is specified applying any voltage to 18 VRIN this terminal. Input reference voltage should be 2.7 to 4.3V and, Vcca VRIN $< 2.2V Terminal for reference voltage output by resistance-type potential MB40968 O divider. VROUT Analog output of Vcca to 3/5 x Vcca is supplied connecting this 17 terminal with VRin terminal. Terminal for reference voltage output consists of Band Gap reference. MB40968V O This terminal supplies the voltage of Vcca to Veca 2V. VROUT 2V output is maintained connecting this terminal with Vain, even if the power supply fluctuates frequently. Terminal for phase compensation capacitance; 16 COMP _ Capacitance of 1 F or more should be inserted between COMP and A- GND. 22 Aout 0 A-channel Analog Signal Output 20 Bout 0 B-channel Analog Signal OutputMB40968/40968V m@ BLOCK DIAGRAM CLKa A1(MSB) Az As Aa As Ac Az As(LSB) CLKs B1(MSB) Ba Bs Ba Bs Be B7 Bs(LSB) O A-OUT Current Switch O B-OUT Current Switch Buffer Reference Resistor Reference Voltage D.GND A.GND V RouT VRIN COMP Vcd Vcam@ ABSOLUTE MAXIMUM RATINGS MB40968/40968V Rating Symbol Value Unit Power supply voltage Vecca, Vecp 0.5 to +7.0 Vv Supply voltage difference Vccp Veca 1.5 Vv Digital input voltage Vib 0.5 to +7.0 Vv Storage temperature TSTG 55 to +125 C Precautions: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Func- tional 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. m@ RECOMMENDED OPERATING CONDITIONS Value ; Parameter Symbol Mi T M Unit in yp. jax. Voca, Vccp 4.75 5.25 Power supply voltage (Vcca Veco) (0.2) 5.00 (0.2) Vv Vcca VRIN 0.70 2.00 2.20 Analog reference voltage Vv VRIN 2.70 3.00 4.30 High level digital Input voltage VIHD 2.0 _ _ Vv Low level digital inout voltage Vib _ _ 0.8 Vv Clock frequency folk 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 twWL 10.0 _ _ ns Phase compensation capacitance Ccomp 1.0 _ _ LF Operating temperature Top 0 _ 70 CMB40968/40968V m@ ELECTRICAL CHARACTERISTICS (Voc = 4.75 to 5.25V, Ta = 0 to 70C) Value Parameter Symbol Condition - Unit Min. Typ. Max. Resolution _ _ _ _ 8 Bit Linearity error LE DC _ _ +0.2 % Reference input current IRIN VRIN = 3.000 (V) _ _ 10 HA High level digital input current IHD ViHD = 2.7 (V) _ _ 20 LA Low level digital input current liLD ViLb = 0.4 (V) 100 _ _ LA Vcca = 5.00 (V) 2-channels output voltage ratio FSR*' | Vccp = 5.00 (V) 0 _ 4 % VRIN = VROUT Vcca = 5.00 (V) Veca Full-scale analog output voltage Vors Vccp = 5.00 (V) 0.015 Voca _ Vv VRIN = VROUT Vcca = 5.00 (V) Zero-scale analog output voltage Vozs Vccp = 5.00 (V) 2.938 3.008 3.078 Vv VRIN = 3.000 (V) Output resistance Ro Ta = 25C 192 240 288 Q Vcca = 5.25 (V) Power supply current Icc Veccp = 5.25 (V) _ 54*2 80 mA VRIN = VROUT 4: FSR =| VOFSIA)VOZSIA)_ 4) 499 % VoFs(B) VOZS(B) *2: Vcc = 5.00 (V) MB40968 Vcca = 5.00 (V) Reference output voltage VROUT Voc = 5.00 (V) 2.900 3.000 3.100 Vv MB40968V Reference output voltage VROUT _ en an an Vv Reference output voltage _ _ _ 400 _ ppm/C temperature constantSwitching Characteristics MB40968/40968V (Voc = 4.75 to 5.25V, Ta = 0 to 70C) tsetHL pin with 2400 Value Parameter Symbol Condition - Unit Min. Typ. Max. Minimum conversion rate Fs _ 30 _ _ MSPS Output delay time pH CL = 15 pF 10 ns Output rise time tr Terminated A.OUT ns : pin with 240Q Output fall time tt ns Terminated BOUT Settling time tsetLH 15 nsMB40968/40968V Input oO @ FF 00 Figure 1 DAC Output Voltage Output Aout Bout 5.000 V 5.000 V 3.008 V 3.000 V 1LSB=8 mV Figure 2 Timing Diagram Analog Output \ tsu th ' 3v T Data Input x * x 1.5V I T OV I ! twH | Twi I ! ! . sv Clock Output ' 1.5V \ I OV I I I I I I I I I I I I I I +1/2 LSB ' 1 I I I I I I I 1 | I 0% 1 +1/2 LSB I I I I 10% ; ; ; A \ I I I T I I I r I I | I I o ti re I t I . I I ' | I TPLH _ ml I I ! I! roo 1 =! 1 tsetLH << ; tsetHL 1 I . IMB40968/40968V Figure 3 Digital Input Equivalent Circuit (Ai to As, B1 to Bs, CLKa, CLKs) Vccp O <_ 50 kQ= YYV > 50 kQ VV AAA AAA VV AAA Degital Input ok 4H Threshold Voltage = 1.4 V D.GND Figure 4 Analog Output Equivalent Circuit Figure 5 MB40968 Reference Output Voltage (Aout, Bout) (VRouT) Vcca O Voca = Ro= 2400 4ko 0 Analog Output V Rout q lo 6 kQ A.GND A.GNDO Figure 6 MB40968V Reference Output Voltage (VrouT) VccaO B.G.R Rs* V Rout Note*:Reference for preventing over current when short circuit with GND.MB40968/40968V The relations between Digital input code and Analog output voltage of MB40968/40968V are ideally indicated as follows. 255N AOUTN(BOUTN) = Vcca 556 x (VCCA- VRIN) N: 0 to 255 Digital Input Code VoFrs = VCCA 255 Vozs = VCCA 5eR x (VOCA VRIN) Output Voltage Ratio between 2 channels is calculated as follows. VOFS(A) VOZS(A) FSR = | Worse, VOzs(B) ~1]x 100% 10m@ TYPICAL CONNECTION EXAMPLE MB40968/40968V sv O 3 2.2pH 3 22pH 0.01 pF T rH 47 UF i T 0.01 pF Vcep Vicca OH AitoAs Aout DATA Input O]B: toBe Bout CLK input { Q] olka vant] Oj CLK V Rout COMP D.GND A.GND 1412 MB40968/40968V lm 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 BTYPICAL CHARACTERISTIC CURVES.) . 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 Vcco pins be placed as close as possible to the pins and connected to the A.GND and D.GND pins. . 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.m@ TYPICAL CHARACTERISTIC CURVES MB40968/40968V Figure 7 Power Supply Current vs. 0 Operating Temperature Vco=5.25 V z= V Rin=V ROUT E 80 8 c 2 60 == 3 [oo 3 --4 => & 40 3 n g @ 20 oa 0 -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 9 Output Resistance vs. Operating Temperature 300 No co oO 260 240 Output Resistance R o(Q) nN Ro oO No oO oO -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 11 Zero-Scale Analog Output Voltage vs. Operating Temperature = 3.100 1 Q Vcc=5.00 V > V ain=3.000 V 1) & 3.050 6 > 5 Bn 6 3.000 nD oO oO < o 2.950 oO 9 @ 9 2.900 -25 0 25 50 75 100 Operation Temperature Ta(C) Figure 8 Linearity Error vs. Operating Temperature 0.2 T T Vcc=5.00 V Vain=3.000 V se 0.15 i a 8 i 0.1 2 w 8 be 5 0.05 = Tr 0 -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 10 Full-Scale Analog Output Voltage Ws: Operating Temperature cc S s (reference) Vcc=5.00 V & V RiIn=V RouT -2 a 2 "meee | been i 5 -4 a 5 Oo 2 6 w Cc <x QO - 2 8 mm -10 -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 12 MB40968 Reference Output Voltage vs. Operating Temperature 3.100 T Vcc=5.00 V 3.050 3.000 be =====-}__ tng 2.950 Reference Output Voltage V rout(V) 2.900 -25 0 25 50 75 100 Operating Temperature Ta(C) (Continued) 1314 MB40968/40968V Figure 13 MB40968V Reference Output Voltage vs. Operating Temperature 3.200 T Vcc=5.00 V 3.100 3.000 2.900 Reference Output Voltage V rout(V) 2.800 -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 15 Data Set Up Time vs. Operating Temperature 10 T Vcc=5.00 V Data Set Up Time tsu(ns) -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 17 Data Hold Time vs. Operating Temperature 6 T Vcc=5.00 V 4 a @ 2 k- 3 a) w eee Q ee et -2 --4 -25 0 25 50 75 100 Operating Temperature Ta(C) Power Supply Voltage-Analog Reference Voltage 2.200 2.100 [V cc-V RouT](V) 1.900 1.800 3.5 4.0 4.5 5.0 5.5 6.0 Data Set Up Time tsu(ns) Data Hold Time tn(ns) 2.000 Figure 14 MB40968V Analog Reference Voltage vs. Power Supply Voltage T Ta=+25C Figure 16 Data Set Up Time vs. Power Supply Voltage V cc(V) Power Supply Voltage 10 T Ta=+25C 0 3.5 Figure 18 Data Hold Time vs. 4.0 4.5 5.0 5.5 6.0 Power Supply Voltage V cc(V) Power Supply Voltage 6 Ta=+25C 4 2 0 | 2 -4 35 40 45 50 55 6.0 Power Supply Voltage V cc(V) (Continued)(Continued) MB40968/40968V Figure 19 Output Rise, Fall Time vs. Operating Temperature 20 Vcc=5.00 V| V Rin=V ROUT 16 | Cc L=15 pF 12 tr > _\ =a avert tt 8 OUTPUT OPEN_] t (2 V amplitude) P.-L e-nat 4 a el a tr | w/ OUTPUT 240 2 0 (1 V amplitude) Output Rise Time tr Output Fall Time t+ (ns) -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 21 Output Delay Time vs. Operating Temperature 20 T T Vcc=5.00 V RD V Rin=V RouT = 16 C.=15 pF * 412 /- OUTPUT OPEN e (2 V amplitude) 5 |__|" wg 8 - s 87 [oee== gba = 5 2 4 OUTPUT 240 oO (1 V amplitude) 0 | | -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 23 Clock Pulse Width vs. Operating Temperature 10 t Vcc=5.00 V a 8 = z i 5 6 S B 3 4 two=-s- a | _-- x Ca 8 ee eel tw Oo 2F 0 -25 0 25 50 75 100 Operating Temperature Ta(C) Figure 20 Output Rise, Fall Time vs. Power Supply Voltage @ 20 r = Ta=25C Vrin=V Rout oy OUTPUT OPEN x (2 V amplitude) a my a I I 0 Wy, > 8 E - t et a 4 fc W/ | te + OUTPUT 240 Q = (1 V amplitude) 6 0 3.5 4.0 45 5.0 5.5 6.0 Power Supply Voltage V cc(V) Figure 22 Output Delay Time vs. Power Supply Voltage 20 | 73205C | V rin=V RouT 46 --_-C1=15 pF 12 OUTPUT OPEN (2 V amplitude) - 4 OUTPUT 240 2 (1 V amplitude) 0 3.5 4.0 4.5 5.0 5.5 6.0 Output Delay Time tPH.,t PLH(ns) Power Suppry Voltage V cc(V) Figure 24 Clock Pulse Width vs. Power Supply Voltage 10 1 Ta=25C @ 8 = 5 6 Ss a = 4 a x twi oO "heeneeeee, 2 oO 2 tw 0 3.5 4.0 45 5.0 5.5 6.0 Power Supply Voltage V cc(V) 1516 MB40968/40968V lm PACKAGE DIMENSION Plastic DIP, 28 pin (DIP-28P-M03) 26.00 *580 ARAAN (1.024 "12 RA AARAAAS INDEX-4 | f DEX-2 O 9.10+0.25 (.358+.010) VVUVV UV VU 4.85(.191)MAX I 8.00(.1 8)MIN 4 i} df | 0.51(.020)MIN a 0.25+0.05 (010+.002) 0.45+0.10 (.018+,004) . 7 1.003 3 ( 039) 10.16(.400 15MAX 039-0 TYP 1.778+0.18 (.070+.007) 1.778(.070) 23,114(.910)REF MAX 1994 FWITSU LIMITED D280125-3C-3 Dimensions in mm (inch)MB40968/40968V Plastic FTP, 28 pin (FTP-28P-M01) 17.75 020 (699008) RHARRARAARAARE 1 PIN INDEX 7.6040.30 10.20+0.40 (.2994.012) (.402:.016) HHERHRHHR HEHE RH 4 | _|.4.27(.050)TYP 0.45:+0.10 0184, 004) 120.13(.005) @ | 16.51 (.650)REF | 1994 FWJITSU LIMITED F280089-5C-4 2.80(.110)MAX J 0.05(.002)MIN (STAND OFF) 9.2040.30 (.362+.012) 0.15 5.02 0.50+0.20 (006 7s0?) (.020+.008) Dimensions in mm (inch) 17MB40968/40968V 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) 482-9044/9045 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 F9607 FUJITSU LIMITED Printed in Japan All Rights Reserved. Circuit diagrams utilizing Fujitsu products are included as a means of illustrating typical semiconductor applications. Com- plete information sufficient for construction purposes is not nec- essarily given. The information contained in this document has been carefully checked and is believed to be reliable. However, Fujitsu as- sumes 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 con- trol systems or medical equipments for life support.