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linear ic converter fujitsu semiconductor data sheet ds04?3511?e n package cmos d/a converter for digital tuning MB88346L 20-pin plastic dip (dip-20p-m02) 20-pin plastic sop (fpt-20p-m01) 20-pin plastic ssop (fpt-20p-m03) (12-channel, 8-bit, on-chip op amp, low-voltage) n 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. n features low voltage operation (v cc /v dd : 2.7 to 3.6 v) ultra-low power consumption (0.5 mw/ch at v cc = 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 v cc 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.
2 MB88346L n pin assignment 1 2 3 4 5 6 7 8 9 10 gnd ao 2 ao 1 di clk ld do ao 12 ao 11 v cc 20 19 18 17 16 15 14 13 12 11 v ss ao 3 ao 4 ao 5 ao 6 ao 7 ao 8 ao 9 ao 10 v dd (top view) (dip-20p-m02) (fpt-20p-m01) (fpt-20p-m03)
MB88346L 3 n pin description symbol di do clk ld ao 1 ao 2 ao 3 ao 4 ao 5 ao 6 ao 7 ao 8 ao 9 ao 10 ao 11 ao 12 v cc gnd v dd v ss i/o i o i i o function serial address/data input to the internal 12?it 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?n bit and d0 (lsb) is the last?n bit. outputs msb bit data from 12-bit shift register. shift clock input to the internal 12?it 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). load strobe input for a 12?it address/data: a high level on the ld pin latches a 4?it address (upper 4 bits: d11 to d8) of the internal 12?it shift register into the internal address decoder, and writes 8?it data (lower 8 bits: d7 to d0) of the shift register into an internal data latch selected by the latched address. 8-bit d/a output pins with op amps. mcu interface and op amp power supply pin. mcu interface and op amp ground pin. d/a converter power supply pin. d/a converter ground pin. pin no. 17 14 16 15 18 19 2 3 4 5 6 7 8 9 12 13 11 20 10 1
4 MB88346L n block diagram 12-bit shift register d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 address decoder 8-bit latch 8-bit r-2r d/a converter 8-bit latch 8-bit r-2r d/a converter 12 1 d7 d0 d7 d0 12 1 8 + ? ao 12 v dd v ss ao 1 gnd v cc ld do di clk + ? 12 23 4
MB88346L 5 n 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 last lsb d0 d1 d2 d3 d4 d5 d6 d7 d8 d9 d10 d11 first msb address selection d/a data output 2. d/a converter control signals d0 0 1 0 0 1 d1 0 0 1 1 1 d2 0 0 0 1 1 d3 0 0 0 1 1 d4 0 0 0 1 1 d5 0 0 0 1 1 d6 0 0 0 1 1 d7 0 0 0 1 1 d/a data output v ss v lb v lb 2 + v ss v lb 254 + v ss v dd v lb = (v dd ?v ss )/255
6 MB88346L 3. address selection signals d8 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 d9 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 d10 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 d11 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 address selection don? care ao 1 selection ao 2 selection ao 3 selection ao 4 selection ao 5 selection ao 6 selection ao 7 selection ao 8 selection ao 9 selection ao 10 selection ao 11 selection ao 12 selection don? care don? care don? care
MB88346L 7 n operating description 1. timing chart for data condition setup di clk ld d/a data output d11 d10 d9 d8 d2 d1 d0 msb lsb 2. analog output voltage range r-2r ladder output op amp output v dd v cc gnd v ss v cc = v dd gnd = v ss d/a output range (linear range) v aoh (v cc ) v aol (gnd)
8 MB88346L n absolute maximum ratings prameter power supply voltage input voltage output voltage power consumption operating temperature storage temperature symbol v cc v dd * v in v out p d ta tstg condition gnd used as reference, ta = 25 c value min. ?.3 ?.3 ?.3 ?.3 ?0 ?5 max. +7.0 +7.0 v cc + 0.3 v cc + 0.3 250 +85 +150 unit v v v v mw c c *: v cc 3 v dd n recommended operating conditions prameter power supply voltage 1 power supply voltage 2 analog output source current analog output sink current oscillator limiting output capacity digital data value range operating temperature symbol v cc gnd v dd v ss i al i ah c al ta condition v dd ?v ss 3 2.0 v v cc = 3.0 v v cc = 3.0 v value max. 3.6 v cc v cc ?2.0 1.0 1.0 0.1 #ff +85 unit v v v v ma ma m f c min. 2.7 2.0 gnd #00 ?0 typ. 0
MB88346L 9 n electrical characteristics 1. dc characteristics (1) digital block prameter power supply voltage power supply current 1 input leak current l level input voltage h level input voltage l level output voltage h level output voltage condition stationary (clk signal stopped), no load v in = 0 to v cc i ol = 2.5 ma i oh = ?00 m a value min. 2.7 ?0 0.8 v cc v cc ?0.4 max. 3.6 3.0 10 0.2 v cc 0.4 unit v ma m a v v v v (v dd , v cc = +2.7 v to 3.6 v (v cc 3 v dd ), gnd, v ss = 0 v, ta = ?0 c to +85 c) symbol v cc i cc i ilk v il v ih v ol v oh pin v cc clk di ld do (2) analog block 1 prameter power consumption analog voltage resolution monotonic increase nonlinearity error differential linearity error condition maximum setting value from #00 to #ff v dd ?v ss 3 2.0 v dd v cc ?0.1 v, v ss 3 0.1 v, no load value min. 2.0 gnd ?.5 ?.0 max. 1.5 v cc v cc ?2.0 1.5 1.0 unit ma v v bits bits lsb lsb typ. 0.6 8 8 symbol i dd v dd v ss res rem le d le pin v dd v dd v ss ao 1 to ao 12 (v dd , v cc = +2.7 v to 3.6 v (v cc 3 v dd ), gnd, v ss = 0 v, ta = ?0 c to +85 c) nonlinearity error: deviation (error) in input/ output curves with respect to an ideal straight line connecting output voltage at ?0 and output voltage at ?f. differential linearity error: deviation (error) in amplification with respect to theoretical increase in amplification per 1-bit increase in digital value. v aoh v aol # 00 # ff analog output ideal straight line non linearity error digital setting note: the value of v aoh and v dd , and the value of v aol and v ss are not necessarily equivalent. typ. 3.0 1.2
10 MB88346L (3) analog block 2 (v dd , v cc = +2.7 v to 3.6 v (v cc 3 v dd ), gnd, v ss = 0 v, ta = ?0 c to +85 c) prameter output minimum voltage 1 output minimum voltage 2 output minimum voltage 3 output minimum voltage 4 output minimum voltage 5 output maximum voltage 1 output maximum voltage 2 output maximum voltage 3 output maximum voltage 4 output maximum voltage 5 value min. v ss v ss ?0.2 v ss v ss ?0.3 v ss v dd ?0.1 v dd ?0.2 v dd ?0.2 v dd ?0.3 v dd ?0.3 max. v ss + 0.1 v ss + 0.2 v ss + 0.2 v ss + 0.3 v ss + 0.3 v dd v dd v dd + 0.2 v dd v dd + 0.3 unit v v v v v v v v v v typ. v ss v ss v dd v dd symbol v aol1 v aol2 v aol3 v aol4 v aol5 v aoh1 v aoh2 v aoh3 v aoh4 v aoh5 pin ao 1 to ao 12 condition v dd = v cc = 3.0 v v ss = gnd = 0.0 v i al = 0 m a digital data = #00 v dd = v cc = 3.0 v v ss = gnd = 0.0 v i al = 500 m a digital data = #00 v dd = v cc = 3.0 v v ss = gnd = 0.0 v i ah = 500 m a digital data = #00 v dd = v cc = 3.0 v v ss = gnd = 0.0 v i al = 0 m a digital data = #00 v dd = v cc = 3.0 v v ss = gnd = 0.0 v i ah = 1.0 ma digital data = #00 v dd = v cc = 3.0 v v ss = gnd = 0.0 v i al = 0 m a digital data = #ff v dd = v cc = 3.0 v v ss = gnd = 0.0 v i al = 500 m a digital data = #ff v dd = v cc = 3.0 v v ss = gnd = 0.0 v i ah = 500 m a digital data = #ff v dd = v cc = 3.0 v v ss = gnd = 0.0 v i al = 1.0 ma digital data = #ff v dd = v cc = 3.0 v v ss = gnd = 0.0 v i ah = 1.0 ma digital data = #ff
MB88346L 11 ?load condition 1 measurement point c l = 20 pf to 100 pf ?load condition 2 r al = 10 k w c al = 50 pf measurement point 2. ac characteristics (v dd , v cc = +2.7 v to 3.6 v (v cc 3 v dd ), gnd, v ss = 0 v, ta = ?0 c to +85 c) prameter clock l level pulse width clock h level pulse width clock rise time clock fall time data setup time data hold time load setup time load hold time load h level pulse width data output delay time d/a output settling time symbol t ckl t ckh t cr t cf t dch t chd t chl t ldc t ldh t do t ldd condition see ? load condition 1 see ? load condition 2 value min. 200 200 30 60 200 100 100 70 max. 200 600 300 unit ns ns ns ns ns ns ns ns ns m s
12 MB88346L input/output timing clk di ld d/a output do output t cr t ckh t cf t ckl t dch t chd t chl t ldh t ldd t ldc t do note: decision levels: 80 % and 20 % of v cc 90 % 10 % n v ao vs. i ao characteristics: example 3.0 v 3.0 v MB88346L ta = +25? source current sink current v pattern input v dd di clk ld v ss v cc ao1 ao12 gnd to (continued)
MB88346L 13 (continued) 3,000 2,980 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 0.4 0.6 0.8 1.0 sink current source current [ma] [mv] analog output level #ff setting 200 180 160 140 120 100 80 60 40 20 0 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0 [ma] sink current source current [mv] analog output level #00 setting 1,600 1,580 1,560 1,540 1,520 1,500 1,480 1,460 1,440 1,420 1,400 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0 [ma] sink current source current [mv] analog output level #80 setting
14 MB88346L n ordering information part number MB88346Lp MB88346Lpf MB88346Lpfv package 20-pin plastic dip (dip-20p-m02) 20-pin plastic sop (fpt-20p-m01) 20-pin plastic ssop (fpt-20p-m03) remarks
MB88346L 15 n package dimensions 20-pin plastic dip (dip-20p-m02) +.012 C0 +.008 C.012 C0 +.012 +0.30 C0 C0 +0.30 +0.20 C0.30 .050 3.00(.118)min 4.36(.172)max typ 7.62(.300) (.244.010) 6.200.25 .970 .034 0.86 index-1 max 1.27(.050) 1.27 0.250.05 (.010.002) 0.51(.020)min 15max 24.64 typ 2.54(.100) index-2 (.018.003) 0.460.08 1994 fujitsu limited d20003s-3c-4 c (continued) dimensions in mm (inches)
16 MB88346L 20-pin plastic sop (fpt-20p-m01) +0.40 C0.20 +.016 C.008 +0.05 C0.02 +.002 C.001 +0.25 C0.20 +.010 C.008 11.43(.450)ref 1.27(.050) typ index 6.80 .268 0.15 .006 12.70 .500 (.307.016) (.209.012) (.018.004) (stand off) (.020.008) 0.500.20 5.300.30 7.800.40 0.05(.002)min 2.25(.089)max 0.450.10 details of "a" part 0.50(.020) 0.20(.008) 0.18(.007)max 0.68(.027)max "a" m ?0.13(.005) 0.10(.004) 1994 fujitsu limited f20003s-5c-4 c (continued) dimensions in mm (inches) (continued)
MB88346L 17 (continued) +0.20 C0.10 +.008 C.004 +0.10 C0.05 +.004 C.002 +0.05 C0.02 +.002 C.001 index "a" 0.10(.004) 1.25 .049 0.22 .009 0.15 .006 (.0256.0047) * (.173.004) (.252.008) nom 6.400.20 4.400.10 5.40(.213) 0.650.12 * 6.500.10(.256.004) 5.85(.230)ref details of "a" part 0 10 (stand off) 0.100.10(.004.004) (.020.008) 0.500.20 1994 fujitsu limited f20012s-2c-4 c dimensions in mm (inches) * :this dimension does not include resin protruction. 20-pin plastic ssop (fpt-20p-m03)
24 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) 754-3763 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) 432-9044/9045 europe fujitsu mikroelektronik gmbh am siebenstein 6-10 63303 dreieich-buchschlag germany tel: (06103) 690-0 fax: (06103) 690-122 asia paci? fujitsu microelectronics asia pte. limited #05-08, 151 lorong chuan new tech park singapore 556741 tel: (65) 281-0770 fax: (65) 281-0220 f9703 ? fujitsu limited printed in japan all rights reserved. the contents of this document are subject to change without notice. customers are advised to consult with fujitsu sales representatives before ordering. the information and circuit diagrams in this document presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. also, fujitsu is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. fujitsu semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). caution: customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with fujitsu sales representatives before such use. the company will not be responsible for damages arising from such use without prior approval. any semiconductor devices have inherently a certain rate of failure. you must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. if any products described in this document represent goods or technologies subject to certain restrictions on export under the foreign exchange and foreign trade control law of japan, the prior authorization by japanese government should be required for export of those products from japan.

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