MB88346B Fujitsu, MB88346B Datasheet
MB88346B
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MB88346B Summary of contents
Page 1
... Digital data are input serially by individual chan- nel units. The loaded digital data are converted into analog DC voltages by the D/A converter settling time. Also, the MB88346B has operational amplifier output buffers. These operational amplifier output buffers are connected to each channel of the D/A converter, and provide high current drive capability ...
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... AO8 AO8 AO9 AO9 8 AO12 12 AO10 AO10 9 AO11 Vcc DD DD Figure 1 Logic Symbol +5V +5V 12 Vcc V DD MB88346B GND Vss MB88346B-PFV 1 GND 20 2 AO2 19 3 AO1 CLK 16 (Top View AO12 13 9 AO11 12 10 Vcc ...
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... AO1 Digital Block (MCU Interface) 12-bit Shift Register 4-bit Address Decoder 8-bit Data Latch R-2R Type 8-bit D/A Converter * : Only for D/A converter block except operational amplifier block MB88346B GND DO D10 D11 #12 # AO12 Vss* 3 ...
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... MB88346B PIN DESCRIPTION PIN ASSIGNMENT and Tableshow the pin assignment and pin description of the MB88346B. Symbol Pin No. Type Power Supply GND Control Input CLK Data Input/Output DAC Output AO1 18 AO2 19 AO3 ...
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... DEVICE CONFIGURATION As illustrated in BLOCK DIAGRAM, the MB88346B device is composed by the digital block (MCU interface) and analog block (D/A converter with operational amplifier output buffers). The digital block consists of a 12-bit shift register, a 4-bit address decoder, and 12-channels of 8-bit data latches. The analog block includes 12 channels of 8-bit D/A converters with operational amplifier output buffers connecting to the data latches ...
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... MB88346B (Last-In) LSB Address 1H Data Latch #1 2H Data Latch #2 3H Data Latch #3 4H Data Latch #4 5H Data Latch #5 6H Data Latch #6 7H Data Latch #7 8H Data Latch #8 9H Data Latch #9 AH Data Latch #10 BH Data Latch #11 CH Data Latch #12 ...
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... Figure 5 Configuration of R-2R Resistor Ladder D/A Converter Powered/grounded by the V and GND pins Internal Bias Generator * (Common to ch. #1-ch. #12 Operational Amplifier Output Buffer* MB88346B + AOx - 7 ...
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... V Data Latch Selected MB88346B Deselected Data Latch #1 Data Latch #2 Data Latch #3 Data Latch #4 Data Latch #5 Data Latch #6 Data Latch #7 Data Latch #8 Data Latch #9 Data Latch #10 Data Latch #11 Data Latch #12 Deselected Deselected Deselected DAC Output Level ...
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... Figure 6 Cascade Connection Example +5V MB88346B Vcc DATA DI (SO) CLOCK CLK Microcontroller (SC/TO) Strobe LD GND GND * : MB88346B can be used mixed with MB88341 MB88341 CLK LD Vss GND Vss MB88346B V DD MB88346B DI DO CLK LD GND ...
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... MB88346B APPLICATION DESCRIPTION The MB88346B is suitable for electronic volumes and replacement for adjustment potentiometers, in addition to normal D/A converter applica- tions. Figure 7 illustrates application example for a gain control. +5V Vcc I/O port I/O port Microcontroller I/O port I/O port GND 10 Figure 7 Application Example - Gain Control Input Vcc V DD ...
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... Value Symbol Min Typ V 4.5 5.0 CC GND - GND - -20 - MB88346B Unit Condition +25 C GND = Vcc +25 C GND = Unit Condition Max ...
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... MB88346B DC CHARACTERISTICS (Recommended operating conditions unless otherwise noted.) Digital Block (MCU Interface) Parameter Symbol Active Supply Current Input Leakage Current I ILK (CLK, DI, and LD) Input Low Voltage V IL (CLK, DI, and LD) Input High Voltage V IH (CLK, DI, and LD) Output Low Voltage V OL ...
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... bit Monotonicity -1.0 0 +1.0 LSB Unloaded, V Unloaded, V -1.5 0 +1.5 LSB See Figure 8. End point line Digita data #FF MB88346B Condition =V =5V, V =GND=0V =+1.0mA, Digital Data=#FF =V =5V, V =GND=0V =+1.0mA, Digital Data=#FF V -0.1V -0.1V, V 0.1V Nonlinearity error * : V is not always equal to V ...
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... MB88346B AC CHARACTERISTICS (Recommended operating conditions unless otherwise noted.) Parameter Symbol Clock Low Time Clock High Time Clock Rise Time Clock Fall Time Data Setup Time Data Hold Time Load Strobe High Time Load Strobe Setup Time Load Strobe Hold Time DAC Output Settling Time ...
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... Figure 10 Input/Output Timing CKH 0.8V CC CLK 0. CKL 0. 0. CHD DCH LD AOx Previous Data t cf 0.8V CC 0.2V CC 0. LDH t CHL 0. LDD Previous Data 0.8V CC New Data Valid 0.2V CC MB88346B 0. LDC 0.8V CC 0.2V CC 0.9V CC New Data Valid 0. ...
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... MB88346B Figure 11 Analog Output Voltage Range R-2R Ladder Output (D/A Converter Output Notes =GND SS 16 Operational Amplifier Output (Buffer Output AOH CC AO Output Range X (Linear Range) GND V = GND AOL ...
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... MAX 1994 FUJITSU LIMITED D20003S-3C-4 C +0.20 24.64 –0.30 +.008 .970 –.012 6.20±0.25 (.244±.010) 0.51(.020)MIN 0.46±0.08 (.018±.003) +0.30 1.27 –0 +.012 .050 –0 TYP MB88346B 0.25±0.05 (.010±.002) 15˚MAX 7.62(.300) TYP Dimensions in mm(inches). 17 ...
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... MB88346B MB88346B-PF 20 pin, Plastic SOP (FPT 20P-M01) +0.25 12.70 –0.20 INDEX 1.27(.050) 0.45±0.10 TYP (.018±.004) "A" 0.10(.004) 11.43(.450)REF 1994 FUJITSU LIMITED F20003S-5C +.010 .500 –.008 5.30±0.30 7.80±0.40 (.209±.012) (.307±.016) Ø0.13(.005) M 2.25(.089)MAX 0.05(.002)MIN (STAND OFF) +0 ...
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... NOM "A" +0.10 +0.05 0.22 0.15 –0.05 –0.02 +.004 +.002 .009 .006 –.002 –.001 MB88346B 0.10(.004) Details of "A" part 0.10±0.10(.004±.004) (STAND OFF) 0 10˚ 0.50±0.20 (.020±.008) Dimensions in mm(inches). 19 ...
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... MB88346B 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 211-8588, Japan Tel: (044) 754-3763 Fax: (044) 754-3329 http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. ...