MITSUBISHI<Dig.Ana.INTERFACE> M62381FP 8-BIT 8CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M62381FP is an integrated circuit semiconductor of CMOS structure with 8 channels of built-in 8-bit resolution multiplication type D-A converters. The input data is a easy-to-use 3-wire serial transfer method and it is able to cascading serial use with Do terminal. This device is capable of 4 quadrant multiplication because of built-in inverting type amplifier. Vo3 1 24 Vo4 Vo2 2 23 VIN3 Vo1 3 22 VIN4 FEATURES VIN2 4 21 VDD •Digital data transfer method 3-wire 12-bit serial data transfer method(DI,CLK,LD) •High pressure proof(VDD±5V) •Short setting time •Built-in reset terminal,all the buffer amplifier outputs forces zero volts. VIN1 5 20 DI GND 6 19 VSS RESET 7 18 Do VIN5 8 17 CLK VIN6 9 16 LD Vo5 10 15 VIN8 Vo6 11 14 VIN7 Vo7 12 13 Vo8 APPLICATION Signal gain control of DISPLAY-MONITOR or CTV. Conversion from digital control data analog control data for form-use and industrial equipment. Automatic adjustment by combination with EEPROM and micro-computer. (replacement of conventional half-fixed resistor.) Outline 24P2V-A VDD BLOCK DIAGRAM 21 DI 20 12-BIT SHIFT RESISTER 18 Do 16 LD CLK 17 DECODER 7 RESET 3 Vo1 VIN1 5 GND 6 VIN2 4 CH2 2 Vo2 VIN3 23 CH3 1 Vo3 VIN4 22 CH4 24 Vo4 VIN5 8 CH5 10 VIN6 9 CH6 11 Vo6 CH7 12 Vo7 CH8 13 8-BIT D-A CONVERTER VIN7 14 VIN8 15 Vo5 Vo8 19 VSS MITSUBISHI ELECTRIC ( 1 / 5 ) MITSUBISHI<Dig.Ana.INTERFACE> M62381FP 8-BIT 8CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS EXPLANATION OF TERMINALS Pin No. 20 18 17 16 Symbol DI Do 3 CLK LD Vo1 2 Vo2 1 Vo3 24 Vo4 10 11 12 13 21 19 6 Vo5 5 VIN1 4 23 22 VIN2 Function Serial data input terminal Serial data output terminal Serial clock input terminal When LD terminal level is "H",latch circuit data is load 8-bit resolution D-A converter output terminal Vo6 Vo7 Vo8 VDD Analog and digital common power supply terminal VSS Analog negative power supply terminal GND GND terminal VIN3 8 VIN4 VIN5 9 14 VIN6 VIN7 15 VIN8 7 RESET D-A converter reference input terminal When RESET terminal level is "H",all D-A output terminal became "0V" MITSUBISHI ELECTRIC ( 2 / 5 ) MITSUBISHI<Dig.Ana.INTERFACE> M62381FP 8-BIT 8CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS DIGITAL DATA FORMAT LAST LSB FIRST MSB DAC DATA DAC SELECT DATA (1)DAC set up data MSB LSB D7 0 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0 -VIN D-A output 0 0 0 0 0 0 0 1 (1/128-1) X VIN 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 (127/128-1) X VIN 1 1 0 0 0 0 0 0 1 (129/128-1) X VIN 1 1 1 1 1 1 1 0 (254/128-1) X VIN 1 1 1 1 1 1 1 1 (255/128-1) X VIN (128/128-1) X VIN (2)DAC select data LSB MSB D11 DAC selection D9 D8 0 D10 0 0 0 Don‘t care 0 0 0 1 ch1 selection 0 0 1 0 ch2 selection 0 1 0 0 1 1 ch7 selection 1 1 0 0 0 1 ch8 selection 1 1 1 1 Don‘t care Don‘t care TIMING CHART (MODEL) MSB DI D11 LSB D10 D9 D1 D0 CLK LD RESET D-A OUTPUT MITSUBISHI ELECTRIC ( 3 / 5 ) MITSUBISHI<Dig.Ana.INTERFACE> M62381FP 8-BIT 8CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS ABSOLUTE MAXIMUM RATINGS Symbol Conditions Parameter Supply voltage VDD VIN Vss VIN Vo Input voltage Output voltage Topr Tstg Operating temperature Storage temperature Digital input voltage Analog negative supply voltage Ratings Unit -0.3 to +6.0 -0.3 to +6.0 -6.0 to +3.0 Vss+0.3 to VDD-0.3 Vss+0.3 to VDD-0.3 V V V V V -20 to +85 -40 to +125 °C °C ELECTRICAL CHARACTERISTICS Digital part(VDD=+5V, VSS=-5V,VDD≥VIN≥Vss,GND=0V,Ta=-20 to +85°C,unless otherwise noted) Symbol Test conditions Parameter VDD Supply voltage IILK Input leak current VIL VOL Input low voltage Input high voltage Output low voltage IOL=2.5mA VOH Output high voltage IOH=-400µA VIH Min. 4.5 Limits Typ. Max. 5.0 5.5 V 10 µA -10 VIN=0 to Vcc Unit 0.2VDD V 0.8VDD V V 0.4 VDD-0.4 V Analog part(VDD=+5V, VSS=-5V,VDD≥VIN≥Vss,GND=0V,Ta=-20 to +85°C,unless otherwise noted) Symbol IIN Test conditions Parameter Min. D-A converter reference input current VAO Buffer amplifier output voltage range IAO RES DNL NL EG Buffer amplifier output current range Resolution Differential nonlinearity Nonlinearity Gain error Limits Typ. 0.2 IAO=±500µA IAO=±1mA VAO=VAOZERO+0.3 to VAOFULL-0.3 VDD-0.5≥VIN≥VSS+0.5 Max. 0.4 Unit mA VAOZERO +0.15 VAOZERO +0.3 VAOFULL -0.15 VAOFULL -0.3 V -1.0 8 -1.0 -1.5 -3 1.0 mA 1.0 1.5 3 bit LSB LSB %FS Max Unit AC CHARACTERISTICS Symbol tCXL tCXH tCR tCF tDCH tCHD tCHL Parameter Test conditions Clock "L"pulse width Clock "H"pulse width Clock rise time Clock fall time Data set up time Data hold time Min 200 200 Limits Typ 200 200 30 60 200 tLDH tLDC tDo LD set up time LD hold time LD "H" pulse width Data output delay time CL=100pF tLDD D-A output setting time Without load 100 100 MITSUBISHI ELECTRIC 70 350 ns ns ns ns ns ns ns ns ns ns ns ( 4 / 5 ) MITSUBISHI<Dig.Ana.INTERFACE> M62381FP 8-BIT 8CH MULTIPLYING D-A CONVERTER WITH BUFFER AMPLIFIERS TIMING CHART tCXH tCR tCF CLK tCXL DI tDCH tLDC tCHD tLDH tCHL LD tLDD D-A OUTPUT tDo Do OUTPUT APPLICATION EXAMPLE 5V 21 VDD VDD VSS 5 VIN1 4 VIN2 23 VIN3 Vo1 3 22 VIN4 Vo2 2 8 VIN5 Vo3 1 9 VIN6 Vo4 24 14 VIN7 Vo5 10 15 VIN8 Vo6 11 ANALOG OUT Vo7 12 16 LD Vo8 13 MICRO COMPUTER 17 CLK 20 DI 7 RESET GND 6 VSS 19 -5V MITSUBISHI ELECTRIC ( 5 / 5 )