MITSUBISHI <STD. LINEAR ICs> M62342P,FP 8-BIT 2CH D-A CONVERTER WITH BUFFER AMPLIFIERS GENERAL DESCRIPTION PIN CONFIGURATION (TOP VIEW) The M62342P,FP is a CMOS 2 channel D-A converter with output buffer amplifiers. It can communicate with a microcontroller via few wiring thanks to the adoption of the three-line DI,CLK,LD. The output buffer amplifier employs AB class output with sinking and sourcing capability of more than 1.0mA , and an output voltage range is nearly between ground and Vcc. 8 LD Ao1 1 M62342 Ao2 2 N.C. 3 VCC 4 7 CLK 6 DI 5 GND 8P4 (P) 8P2S-A (FP) Outline FEATURES • 10bit serial data input (3-wire serial transfer method) • Wide output voltage range Nearly between ground and Vcc(0 to 5V) • High output current drive capability over ±1.0mA APPLICATION Conversion from digital data to analog control data for both consumer and industrial equipment. Gain control and automatic adjustment of DISPLAY-MONITOR or CTV. BLOCK DIAGRAM VCC LD CLK DI GND 4 8 7 6 5 10-BIT SHIFT REGISTER ADDRESS DECODER 8 8bit Latch 8bit Latch 8bit upper segment R-2R 8bit upper segment R-2R 1 2 3 Ao1 Ao2 N.C. MITSUBISHI ELECTRIC 2000-8-31.revB ( 1 / 5 ) MITSUBISHI <STD. LINEAR ICs> M62342P,FP 8-BIT 2CH D-A CONVERTER WITH BUFFER AMPLIFIERS EXPLANATION OF TERMINALS PIN No. Symbol Function 6 DI 7 CLK Shift clock input terminal. Input signal at DI pin is input to 10-bit shift register at rise of shift clock pulse. 8 LD When H-level signal is input to this terminal,the value stored in 10-bit shift register is loaded in decoder and D-A converter output register. 1 Ao1 2 Ao2 4 Vcc Power supply terminal 5 GND GND Serial data input terminal 8bit D–A converter output terminal ABSOLUTE MAXIMUM RATING Symbol Parameter Conditions Ratings Unit -0.3 to 7.0 V Input voltage -0.3 to VCC+0.3 V Vo Output voltage -0.3 to VCC+0.3 V Pd Power dissipation 417 (DIP) / 272 (FP) mW Vcc Supply voltage Vin Topr Operating temperature -20 to +85 °C Tstg Storage temperature -55 to +125 °C ELECTRICAL CHARACTERISTICS (VCC=+5V±10%,GND=0V,Ta=–20 to 85°C unless otherwise noted) Symbol VCC ICC Parameter Test conditions Ratings Typ 2.7 5.0 5.5 V CLK=1MHz, IAO=0µA DACdata:6Ah(at maximum current) 0 0.7 2.5 mA DI=CLK=LD=GND,IAO=0µA 0 0.5 1.6 mA 10 µA 0.2VCC V Supply voltage Supply current IILK Input leak current VIL Input low voltage VIH Input high voltage VAO Buffer amplifier output voltage range IAO Buffer amplifier output drive range SDL Differential nonlinearity SL Nonlinearity SZERO Zero code error VIN=0 to VCC -10 0.5VCC Output capacitive load Ro Buffer amplifier output impedance V IAO=±100µA 0.1 VCC-0.1 V IAO=±500µA 0.2 VCC-0.2 V -1.0 1.0 mA -1.0 1.0 LSB VCC=5.12V (20mV/LSB) -1.5 1.5 LSB without load (IAO=0) -2.0 2.0 LSB -2.0 2.0 LSB 0.1 µF Upper side saturation voltage=0.3V Lower side saturation voltage=0.2V SFULL Full scale error Co Max Unit Min 5.0 MITSUBISHI ELECTRIC Ω 2000-8-31.revB ( 2 / 5 ) MITSUBISHI <STD. LINEAR ICs> M62342P,FP 8-BIT 2CH D-A CONVERTER WITH BUFFER AMPLIFIERS AC CHARACTERISTICS (VCC=+5V±10%,GND=0V,Ta=–20 to 85°C unless otherwise noted) Symbol Parameter Limits Test condition Min Typ Max Unit tCKL Clock "L" pulse width 200 nS tCKH Clock "H" pulse width 200 nS tCR Clock rise time tCF Clock fall time tDCH Data setup time 30 nS tCHD Data hold time 60 nS tCHL LD setup time 200 nS tLDC LD hold time 100 nS tLDH LD "H" pulse time 100 nS tLDD D-A output setting time 200 CL≤100pF VAO:0.5V<=>4.5V The time until the output becomes the final value of 1/2LSB 300 nS µS TIMING CHART tCR tCKH tCF CLK tCKL tLDC DI tDCH LD tCHD tLDH tCHL tLDD D-A OUTPUT MITSUBISHI ELECTRIC 2000-8-31.revB ( 3 / 5 ) MITSUBISHI <STD. LINEAR ICs> M62342P,FP 8-BIT 2CH D-A CONVERTER WITH BUFFER AMPLIFIERS DIGITAL DATA FORMAT Last LSB First MSB D0 D1 D2 D3 D4 D5 D6 D8 D7 D9 DAC SELECT DATA DAC DATA (1) DAC SELECT DATA D8 D9 DAC selection 0 0 AO1selection 1 0 AO2selection 0 1 Don't care 1 1 Don't care (2) DAC DATA D0 D1 D2 D3 D4 D5 D6 D7 DAC output 0 0 0 0 0 0 0 0 VCC/256 X1 1 0 0 0 0 0 0 0 VCC/256 X2 0 1 0 0 0 0 0 0 VCC/256 X3 1 1 0 0 0 0 0 0 VCC/256 X4 : : : : : : : : : 0 1 1 1 1 1 1 1 VCC/256 X255 1 1 1 1 1 1 1 1 VCC/256 X256 TIMING CHART (MODEL) DI D9 D8 D7 D6 D5 D2 D1 D0 CLK LD D-A OUTPUT MITSUBISHI ELECTRIC 2000-8-31.revB ( 4 / 5 ) MITSUBISHI <STD. LINEAR ICs> M62342P,FP 8-BIT 2CH D-A CONVERTER WITH BUFFER AMPLIFIERS PRECAUTION FOR USE Supply voltage terminal(Vcc) is also used for D-A converter upper reference voltage setting. IF ripple or spike is input this terminal,accuracy of D-A conversion is down. So,when use this device,please connect capacitor among Vcc to GND for stable D-A conversion. This IC's output amplifier has an advantage to capacitive load.So it's no problem at device action when connect capacitor (0.1µF MAX) among output to GND for every noise eliminate. < Standard application circuit > 1 Ao1 Analog output terminals LD 8 2 Ao2 CLK 7 3 DI 6 4 VCC 5V MCU GND 5 10µF Keep safety first in your circuit designs! • Mitsubishi Electric Corporation puts the maximum effort into making semiconductor products better andmore reliable, but there is always the possibility that trouble may occur with them. Trouble withsemiconductors may lead to personal injury,fire or property damage. Remember to give due considerationto safety when making your circuit design, in order to prevent fires from spreading, redundancy, malfunctionor other mishap. MITSUBISHI ELECTRIC 2000-8-31.revB ( 5 / 5 )