FUJITSU SEMICONDUCTOR DATA SHEET DS04-13511-2E Linear IC Converter CMOS D/A Converter for Digital Tuning (12-channel, 8-bit, on-chip OP amp, low-voltage) MB88346L ■ DESCRIPITON The Fujitsu MB88346L is an 8-bit D/A converter capable of low-voltage operation, and designed with a built-in amp on each of its 12 analog output lines for large-current drive capability. The use of serial data input means that only three control lines are required, and enables cascade connection of multiple MB88346L chips. The MB88346L is suitable for applications such as electronic volume controls and replacement of semi-fixed resistors in tuning systems. In addition, the MB88346L is both function-compatible and pin-compatible with the MB88346B now in use, allowing easy substitution of the MB88346L for reduced supply voltage. ■ FEATURES • • • • • • • • • • • Low voltage operation (VCC/VDD: 2.7 to 3.6 V) Ultra-low power consumption (0.5 mW/ch at VCC = 3 V) Ultra-compact space-saving package lineup (SSOP-20) Contains 12-channel R-2R type 8-bit D/A converter On-chip analog output amps (sink current max. 1.0 mA, source current max. 1.0 mA) Analog output range from 0 to VCC Two separate power supply/ground lines for MCU interface block/operational amplifier output buffer block and D/A converter block Serial data input, maximum operating speed 2.5 MHz (maximum operating speed in cascade connection is 1.5 MHz) CMOS process Package lineup includes DIP 20-pin, SOP 20-pin, SSOP 20-pin. ■ PACKAGES 20-pin plastic DIP (DIP-20P-M02) 20-pin plastic SOP (FPT-20P-M01) 20-pin plastic SSOP (FPT-20P-M03) MB88346L ■ PIN ASSIGNMENT (Top view) VSS 1 20 GND AO3 2 19 AO2 AO4 3 18 AO1 AO5 4 17 DI AO6 5 16 CLK AO7 6 15 LD AO8 7 14 DO AO9 8 13 AO12 AO10 9 12 AO11 VDD 10 11 VCC (DIP-20P-M02) (FPT-20P-M01) (FPT-20P-M03) 2 MB88346L ■ PIN DESCRIPTION Pin No. Symbol I/O Function 17 DI I Serial address/data input to the internal 12-bit shift register: The address/data format is that upper 4 bits (D11 to D8) indicate an address and lower 8 bits (D7 to D0) indicate data. The D11 (MSB) is the first-in bit and D0 (LSB) is the last-in bit. 14 DO O Outputs MSB bit data from 12-bit shift register. 16 CLK I Shift clock input to the internal 12-bit shift register: At the rising edge of CLK data on the DI pin is shifted into the LSB of the shift register and contents of the shift register are shifted right (to the MSB). 15 LD I Load strobe input for a 12-bit address/data: A high level on the LD pin latches a 4-bit address (upper 4 bits: D11 to D8) of the internal 12-bit shift register into the internal address decoder, and writes 8-bit data (lower 8 bits: D7 to D0) of the shift register into an internal data latch selected by the latched address. 18 19 2 3 4 5 6 7 8 9 12 13 AO1 AO2 AO3 AO4 AO5 AO6 AO7 AO8 AO9 AO10 AO11 AO12 O 8-bit D/A output pins with OP amps. 11 VCC — MCU interface and OP amp power supply pin. 20 GND — MCU interface and OP amp ground pin. 10 VDD — D/A converter power supply pin. 1 VSS — D/A converter ground pin. 3 MB88346L ■ BLOCK DIAGRAM 12-bit shift register DI CLK D0 D1 D2 D3 D4 D5 D6 DO D7 D8 D9 D10 D11 LD Address decoder 8 1 2 3 4 12 D0 1 D7 12 8-bit latch 8-bit R-2R D/A converter VCC 4 GND D0 12 D7 8-bit latch 8-bit R-2R D/A converter + + – – AO1 AO12 VDD VSS MB88346L ■ DATA CONFIGURATION The MB88346L has a 12-bit shift register for chip control functions. The 12-bit shift register must be used to set up data in the configuration shown below. The data configuration has a total of 12 bits, four for address selection and eight for D/A data output. 1. Shift Register Control Data Configuration First MSB Last LSB D0 D1 D2 D3 D4 D5 D6 D7 D/A data output D8 D9 D10 D11 Address selection 2. D/A Converter Control Signals D0 D1 D2 D3 D4 D5 D6 D7 D/A data output 0 0 0 0 0 0 0 0 ≅ VSS 1 0 0 0 0 0 0 0 ≅ VLB+ VSS 0 1 0 0 0 0 0 0 ≅ VLB × 2 + VSS • • • • • • • • • • • • • • • • • • • • • • • • 0 1 1 1 1 1 1 1 ≅ VLB × 254 + VSS 1 1 1 1 1 1 1 1 ≅ VDD • • • VLB = (VDD – VSS)/255 5 MB88346L 3. Address Selection Signals 6 D8 D9 D10 D11 Address selection 0 0 0 0 Don’t Care 0 0 0 1 AO1 selection 0 0 1 0 AO2 selection 0 0 1 1 AO3 selection 0 1 0 0 AO4 selection 0 1 0 1 AO5 selection 0 1 1 0 AO6 selection 0 1 1 1 AO7 selection 1 0 0 0 AO8 selection 1 0 0 1 AO9 selection 1 0 1 0 AO10 selection 1 0 1 1 AO11 selection 1 1 0 0 AO12 selection 1 1 0 1 Don’t Care 1 1 1 0 Don’t Care 1 1 1 1 Don’t Care MB88346L ■ OPERATING DESCRIPTION 1. Timing Chart for Data Condition Setup MSB DI D11 LSB D10 D9 D8 D2 D1 D0 CLK LD D/A data output 2. Analog Output Voltage Range R-2R ladder output VDD OP amp output VCC VAOH (V CC) D/A output range (linear range) VAOL (GND) VSS GND VCC = VDD GND = VSS 7 MB88346L ■ ABSOLUTE MAXIMUM RATINGS Prameter Power supply voltage Symbol Rating Condition VCC VDD* GND used as reference, Ta = 25°C Unit Min. Max. –0.3 +7.0 V –0.3 +7.0 V –0.3 VCC + 0.3 V –0.3 VCC + 0.3 V Input voltage VIN Output voltage VOUT Power consumption PD — — 250 mW Operating temperature Ta — –20 +85 °C Storage temperature Tstg — –55 +150 °C * : VCC ≥VDD WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings. ■ RECOMMENDED OPERATING CONDITIONS Prameter Power supply voltage 1 Power supply voltage 2 Symbol Condition VCC GND VDD VSS Value Unit Min. Typ. Max. — 2.7 — 3.6 V — — 0 — V 2.0 — VCC V GND — VCC – 2.0 V VDD – VSS ≥ 2.0 V Analog output source current IAL VCC = 3.0 V — — 1.0 mA Analog output sink current IAH VCC = 3.0 V — — 1.0 mA Oscillator limiting output capacity CAL — — — 0.1 µF Digital data value range — — #00 — #FF — Operating temperature Ta — –20 — +85 °C WARNING: The recommended operating conditions are required in order to ensure the normal operation of the semiconductor device. All of the device’s electrical characteristics are warranted when the device is operated within these ranges. Always use semiconductor devices within their recommended operating condition ranges. Operation outside these ranges may adversely affect reliability and could result in device failure. No warranty is made with respect to uses, operating conditions, or combinations not represented on the data sheet. Users considering application outside the listed conditions are advised to contact their FUJITSU representatives beforehand. 8 MB88346L ■ ELECTRICAL CHARACTERISTICS 1. DC Characteristics (1) Digital Block (VDD, VCC = +2.7 V to 3.6 V (VCC ≥ VDD), GND = VSS = 0 V, Ta = –20°C to +85°C) Value Symbol Pin Condition Unit Min. Typ. Max. Prameter Power supply voltage VCC Power supply current 1 ICC Input leak current IILK L level input voltage VIL H level input voltage VIH L level output voltage VOL H level output voltage VOH VCC — 2.7 3.0 3.6 V Stationary (CLK signal stopped), no load — 1.2 3.0 mA –10 — 10 µA — — — 0.2 VCC V — 0.8 VCC — — V — — 0.4 V VCC – 0.4 — — V VIN = 0 to VCC CLK, DI, LD IOL = 2.5 mA DO IOH = –400 µA (2) Analog Block 1 (VDD, VCC = +2.7 V to 3.6 V (VCC ≥ VDD), GND = VSS = 0 V, Ta = –20°C to +85°C) Value Symbol Pin Condition Unit Min. Typ. Max. Prameter Power consumption Analog voltage IDD VDD VDD VDD VSS VSS Resolution Res Monotonic increase Rem Nonlinearity error LE Differential linearity error DLE Maximum setting value from #00 to #FF VDD – VSS ≥ 2.0 — AO1 to AO12 VDD ≤ VCC – 0.1 V, VSS ≥ 0.1 V, no load — 0.6 1.5 mA 2.0 — VCC V GND — VCC – 2.0 V — 8 — bits — 8 — bits –1.5 — 1.5 LSB –1.0 — 1.0 LSB Nonlinearity error: Deviation (error) in input/output curves with respect to an ideal straight line connecting output voltage at “00” and output voltage at “FF.” Differential linearity error: Deviation (error) in amplification with respect to theoretical increase in amplification per 1-bit increase in digital value. Analog output Ideal straight line VAOH Non linearity error VAOL Digital setting #00 #FF Note: The value of VAOH and VDD, and the value of VAOL and VSS are not necessarily equivalent. 9 MB88346L (3) Analog Block 2 Prameter Output minimum voltage 1 Output minimum voltage 2 Output minimum voltage 3 Output minimum voltage 4 Output minimum voltage 5 (VDD, VCC = +2.7 V to 3.6 V (VCC ≥ VDD), GND = VSS = 0 V, Ta = –20°C to +85°C) Value Symbol Pin Condition Unit Min. Typ. Max. VAOL1 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 0 µA Digital data = #00 VSS — VSS + 0.1 V VAOL2 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 500 µA Digital data = #00 VSS – 0.2 VSS VSS + 0.2 V VAOL3 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAH = 500 µA Digital data = #00 VSS — VSS + 0.2 V VAOL4 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 1.0 mA Digital data = #00 VSS – 0.3 VSS VSS + 0.3 V VAOL5 VDD = VCC = 3.0 V, VSS = GND = 0.0 V IAH = 1.0 mA Digital data = #00 VSS — VSS + 0.3 V VAOH1 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 0 µA Digital data = #FF VDD – 0.1 — VDD V VAOH2 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 500 µA Digital data = #FF VDD – 0.2 — VDD V VAOH3 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAH = 500 µA Digital data = #FF VDD – 0.2 VDD VDD + 0.2 V VAOH4 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 1.0 mA Digital data = #FF VDD – 0.3 — VDD V VAOH5 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAH = 1.0 mA Digital data = #FF VDD – 0.3 VDD VDD + 0.3 V AO1 to AO12 Output maximum voltage 1 Output maximum voltage 2 Output maximum voltage 3 Output maximum voltage 4 Output maximum voltage 5 10 MB88346L 2. AC Characteristics Prameter (VDD, VCC = +2.7 V to 3.6 V (VCC ≥ VDD), GND = VSS = 0 V, Ta = –20°C to +85°C) Value Symbol Condition Unit Min. Max. Clock L level pulse width tCKL — 200 — ns Clock H level pulse width tCKH — 200 — ns Clock rise time Clock fall time tCr tCf — — 200 ns Data setup time tDCH — 30 — ns Data hold time tCHD — 60 — ns Load setup time tCHL — 200 — ns Load hold time tLDC — 100 — ns Load H level pulse width tLDH — 100 — ns Data output delay time tDO See “• Load condition 1” 70 600 ns D/A output settling time tLDD See “• Load condition 2” — 300 µs • Load condition 1 • Load condition 2 Measurement point CL = 20 pF to 100 pF Measurement point R AL = 10 kΩ CAL = 50 pF 11 MB88346L • Input/output timing tCr tCKH tCf CLK tCKL tLDC DI tLDH tDCH tCHD LD tCHL tLDD 90 % D/A output 10 % tDO DO output Note: Decision levels: 80 % and 20 % of VCC ■ VAO VS. IAO CHARACTERISTICS: EXAMPLE Ta = +25°C 3.0 V 3.0 V Source current MB88346L Pattern input VDD DI CLK LD VSS VCC AO1 to AO12 GND Sink current V (Continued) 12 MB88346L (Continued) #FF setting [mV] 3,000 2,980 Analog output level 2,960 2,940 2,920 2,900 2,880 2,860 2,840 2,820 2,800 1.0 0.8 0.6 0.4 0.2 0.0 0.2 Sink current 0.4 0.6 0.8 1.0 [mA] Source current #80 setting [mV] 1,600 1,580 Analog output level 1,560 1,540 1,520 1,500 1,480 1,460 1,440 1,420 1,400 1.0 [mV] 0.8 0.6 0.4 Sink current 0.2 0.0 0.2 0.4 0.6 0.8 Source current 1.0 [mA] 0.2 0.0 0.2 0.4 0.6 0.8 Source current 1.0 [mA] #00 setting 200 180 Analog output level 160 140 120 100 80 60 40 20 0 1.0 0.8 0.6 0.4 Sink current 13 MB88346L ■ ORDERING INFORMATION Part number MB88346LP 20-pin Plastic DIP (DIP-20P-M02) MB88346LPF 20-pin Plastic SOP (FPT-20P-M01) MB88346LPFV 14 Package 20-pin Plastic SSOP (FPT-20P-M03) Remarks MB88346L ■ PACKAGE DIMENSIONS 20-pin Plastic DIP (FPT-20P-M02) +0.20 24.64 –0.30 .970 +.008 –.012 INDEX-1 6.20±0.25 (.244±.010) INDEX-2 0.51(.020)MIN 4.36(.172)MAX 0.25±0.05 (.010±.002) 3.00(.118)MIN 0.46±0.08 (.018±.003) +0.30 0.86 –0 .034 +.012 –0 1.27(.050) MAX C 1994 FUJITSU LIMITED D20003S-3C-4 +0.30 1.27 –0 .050 +.012 –0 7.62(.300) TYP 15°MAX 2.54(.100) TYP Dimensions in mm (inches). (Continued) 15 MB88346L 20-pin Plastic SOP (FPT-20P-M01) +0.25 2.25(.089)MAX (Mounting height) +.010 12.70 –0.20 .500 –.008 0.05(.002)MIN (STAND OFF) 5.30±0.30 (.209±.012) INDEX 1.27(.050) TYP 0.45±0.10 (.018±.004) +0.40 6.80 –0.20 7.80±0.40 (.307±.016) +.016 .268 –.008 +0.05 Ø0.13(.005) M 0.15 –0.02 +.002 .006 –.001 0.50±0.20 (.020±.008) Details of "A" part 0.20(.008) "A" 0.10(.004) 11.43(.450)REF 0.50(.020) 0.18(.007)MAX 0.68(.027)MAX C 1994 FUJITSU LIMITED F20003S-5C-4 Dimensions in mm (inches) (Continued) 16 MB88346L (Continued) 20-pin Plastic SSOP (FPT-20P-M03) Note 1) *:This dimension does not include resin protrusion. Note 2) Pins width and pins thickness include plating thickness. * 6.50±0.10(.256±.004) 0.17±0.03 (.007±.001) 11 20 * 4.40±0.10 6.40±0.20 (.173±.004) (.252±.008) INDEX Details of "A" part +0.20 1.25 –0.10 +.008 .049 –.004 LEAD No. 1 10 0.65(.026) "A" 0.24±0.08 (.009±.003) 0.10(.004) C (Mounting height) 1999 FUJITSU LIMITED F20012S-3C-5 0.13(.005) M 0~8° 0.50±0.20 (.020±.008) 0.45/0.75 (.018/.030) 0.10±0.10 (Stand off) (.004±.004) 0.25(.010) Dimensions in mm (inches) 17 MB88346L 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: +81-44-754-3763 Fax: +81-44-754-3329 http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. 3545 North First Street, San Jose, CA 95134-1804, USA Tel: +1-408-922-9000 Fax: +1-408-922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: +1-800-866-8608 Fax: +1-408-922-9179 http://www.fujitsumicro.com/ Europe FUJITSU MICROELECTRONICS EUROPE GmbH Am Siebenstein 6-10, D-63303 Dreieich-Buchschlag, Germany Tel: +49-6103-690-0 Fax: +49-6103-690-122 http://www.fujitsu-fme.com/ Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE LTD #05-08, 151 Lorong Chuan, New Tech Park, Singapore 556741 Tel: +65-281-0770 Fax: +65-281-0220 http://www.fmap.com.sg/ F0001 FUJITSU LIMITED Printed in Japan All Rights Reserved. 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