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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
s 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.
s 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.
s PACKAGES
20-pin plastic DIP 20-pin plastic SOP 20-pin plastic SSOP
(DIP-20P-M02)
(FPT-20P-M01)
(FPT-20P-M03)
MB88346L
s PIN ASSIGNMENT
(Top view)
VSS AO3 AO4 AO5 AO6 AO7 AO8 AO9 AO10 VDD
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
GND AO2 AO1 DI CLK LD DO AO12 AO11 VCC
(DIP-20P-M02) (FPT-20P-M01) (FPT-20P-M03)
2
MB88346L
s PIN DESCRIPTION
Pin No. 17 Symbol DI I/O I Function 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. Outputs MSB bit data from 12-bit shift register. 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). 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. 8-bit D/A output pins with OP amps.
14 16
DO CLK
O I
15
LD
I
18 19 2 3 4 5 6 7 8 9 12 13 11 20 10 1
AO1 AO2 AO3 AO4 AO5 AO6 AO7 AO8 AO9 AO10 AO11 AO12 VCC GND VDD VSS
O
-- -- -- --
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.
3
MB88346L
s BLOCK DIAGRAM
DI CLK
12-bit shift register D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11
DO
Address decoder 8 12 1234 12
LD
D0
D7
D0
D7
1
8-bit latch
12
8-bit latch
8-bit R-2R D/A converter
8-bit R-2R D/A converter
+ -
+ -
VCC
GND
AO1
AO12
VDD
VSS
4
MB88346L
s 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
First MSB D11
D/A data output
Address selection
2. D/A Converter Control Signals
D0 0 1 0
* * *
D1 0 0 1
* * *
D2 0 0 0
* * *
D3 0 0 0
* * *
D4 0 0 0
* * *
D5 0 0 0
* * *
D6 0 0 0
* * *
D7 0 0 0
* * *
D/A data output VSS VLB+ VSS VLB x 2 + VSS
* * *
0 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
VLB x 254 + VSS VDD
VLB = (VDD - VSS)/255
5
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 Don't Care AO1 selection AO2 selection AO3 selection AO4 selection AO5 selection AO6 selection AO7 selection AO8 selection AO9 selection AO10 selection AO11 selection AO12 selection Don't Care Don't Care Don't Care Address selection
6
MB88346L
s OPERATING DESCRIPTION
1. Timing Chart for Data Condition Setup
MSB LSB D10 D9 D8 D2 D1 D0
DI
D11
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
s ABSOLUTE MAXIMUM RATINGS
Prameter Power supply voltage Input voltage Output voltage Power consumption Operating temperature Storage temperature * : 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. Symbol VCC VDD* VIN VOUT PD Ta Tstg -- -- -- GND used as reference, Ta = 25C Condition Rating Min. -0.3 -0.3 -0.3 -0.3 -- -20 -55 Max. +7.0 +7.0 VCC + 0.3 VCC + 0.3 250 +85 +150 Unit V V V V mW C C
s 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 VCC GND VDD VSS IAL IAH CAL -- Ta Condition -- -- VDD - VSS 2.0 V VCC = 3.0 V VCC = 3.0 V -- -- -- Value Min. 2.7 -- 2.0 GND -- -- -- #00 -20 Typ. -- 0 -- -- -- -- -- -- -- Max. 3.6 -- VCC VCC - 2.0 1.0 1.0 0.1 #FF +85 Unit V V V V mA mA F -- 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
s ELECTRICAL CHARACTERISTICS
1. DC Characteristics
(1) Digital Block (VDD, VCC = +2.7 V to 3.6 V (VCC VDD), GND = VSS = 0 V, Ta = -20C to +85C) Value Symbol Pin Condition Unit Min. Typ. Max. VCC ICC IILK VIL VIH VOL VOH DO CLK, DI, LD VCC -- Stationary (CLK signal stopped), no load VIN = 0 to VCC -- -- IOL = 2.5 mA IOH = -400 A 2.7 -- -10 -- 0.8 VCC -- VCC - 0.4 3.0 1.2 -- -- -- -- -- 3.6 3.0 10 0.2 VCC -- 0.4 -- V mA A V V V V
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 (2) Analog Block 1
Prameter Power consumption Analog voltage Resolution Monotonic increase Nonlinearity error Differential linearity error Nonlinearity error:
(VDD, VCC = +2.7 V to 3.6 V (VCC VDD), GND = VSS = 0 V, Ta = -20C to +85C) Value Symbol Pin Condition Unit Min. Typ. Max. IDD VDD VSS Res Rem LE DLE AO1 to AO12 VDD VDD VSS Maximum setting value from #00 to #FF VDD - VSS 2.0 -- VDD VCC - 0.1 V, VSS 0.1 V, no load -- 2.0 GND -- -- -1.5 -1.0 0.6 -- -- 8 8 -- -- 1.5 VCC VCC - 2.0 -- -- 1.5 1.0 mA V V bits bits LSB LSB
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.
Ideal straight line Analog output 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 (VDD, VCC = +2.7 V to 3.6 V (VCC VDD), GND = VSS = 0 V, Ta = -20C to +85C) Value Symbol Pin Condition Unit Min. Typ. Max. VAOL1 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 0 A Digital data = #00 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 500 A Digital data = #00 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAH = 500 A Digital data = #00 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 1.0 mA Digital data = #00 VDD = VCC = 3.0 V, VSS = GND = 0.0 V IAH = 1.0 mA Digital data = #00 VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 0 A Digital data = #FF VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 500 A Digital data = #FF VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAH = 500 A Digital data = #FF VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAL = 1.0 mA Digital data = #FF VDD = VCC = 3.0 V, VSS = GND = 0.0 V, IAH = 1.0 mA Digital data = #FF VSS -- VSS + 0.1 V
Prameter
Output minimum voltage 1
Output minimum voltage 2
VAOL2
VSS - 0.2
VSS
VSS + 0.2
V
Output minimum voltage 3
VAOL3
VSS
--
VSS + 0.2
V
Output minimum voltage 4
VAOL4
VSS - 0.3
VSS
VSS + 0.3
V
Output minimum voltage 5
VAOL5 AO1 to AO12
VSS
--
VSS + 0.3
V
Output maximum voltage 1
VAOH1
VDD - 0.1
--
VDD
V
Output maximum voltage 2
VAOH2
VDD - 0.2
--
VDD
V
Output maximum voltage 3
VAOH3
VDD - 0.2
VDD
VDD + 0.2
V
Output maximum voltage 4
VAOH4
VDD - 0.3
--
VDD
V
Output maximum voltage 5
VAOH5
VDD - 0.3
VDD
VDD + 0.3
V
10
MB88346L
2. AC Characteristics
(VDD, VCC = +2.7 V to 3.6 V (VCC VDD), GND = VSS = 0 V, Ta = -20C to +85C) Value Symbol Condition Unit Min. Max. tCKL tCKH tCr tCf tDCH tCHD tCHL tLDC tLDH tDO tLDD -- -- -- -- -- -- -- -- See "* Load condition 1" See "* Load condition 2" 200 200 -- 30 60 200 100 100 70 -- -- -- 200 -- -- -- -- -- 600 300 ns ns ns ns ns ns ns ns ns s
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
* Load condition 1 Measurement point CL = 20 pF to 100 pF
* Load condition 2 Measurement point R AL = 10 k
CAL = 50 pF
11
MB88346L
* Input/output timing
tCr tCKH tCf
CLK
tCKL
DI
tLDH tDCH tCHD tCHL
tLDC
LD
tLDD
D/A output
tDO
90 % 10 %
DO output
Note: Decision levels: 80 % and 20 % of VCC
s VAO VS. IAO CHARACTERISTICS: EXAMPLE
Ta = +25C 3.0 V MB88346L VDD DI CLK LD VSS VCC AO1 to AO12 GND 3.0 V Source current Sink current
Pattern input
V
(Continued)
12
MB88346L
(Continued)
[mV] 3,000 2,980 2,960 Analog output level 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 [mA] #FF setting
Sink current
Source current
[mV] 1,600 1,580 1,560 Analog output level 1,540 1,520 1,500 1,480 1,460 1,440 1,420 1,400 1.0
#80 setting
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]
[mV] 200 180 160 Analog output level 140 120 100 80 60 40 20 0 1.0
#00 setting
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]
13
MB88346L
s 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
14
MB88346L
s PACKAGE DIMENSIONS
20-pin Plastic DIP (FPT-20P-M02)
24.64 -0.30 .970
+.008 -.012
+0.20
INDEX-1 INDEX-2 6.200.25 (.244.010)
4.36(.172)MAX
0.51(.020)MIN 0.250.05 (.010.002)
3.00(.118)MIN
0.460.08 (.018.003) 15MAX
0.86 -0 .034 1.27(.050) MAX
+0.30 +.012 -0
1.27 -0 .050
+0.30
+.012 -0
7.62(.300) TYP
2.54(.100) TYP
C
1994 FUJITSU LIMITED D20003S-3C-4
Dimensions in mm (inches).
(Continued)
15
MB88346L
20-pin Plastic SOP (FPT-20P-M01)
12.70 -0.20 .500 -.008
+0.25 +.010
2.25(.089)MAX (Mounting height) 0.05(.002)MIN (STAND OFF)
INDEX
5.300.30 (.209.012)
7.800.40 (.307.016)
6.80 -0.20 .268 -.008
+0.40 +.016
1.27(.050) TYP
0.450.10 (.018.004)
O0.13(.005)
M
0.15 -0.02 .006 -.001
+0.05 +.002
0.500.20 (.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)
* 6.500.10(.256.004)
20 11
Note 1) *:This dimension does not include resin protrusion. Note 2) Pins width and pins thickness include plating thickness.
0.170.03 (.007.001)
* 4.400.10
INDEX
6.400.20 (.173.004) (.252.008)
Details of "A" part 1.25 -0.10 .049 -.004 LEAD No.
1 10
+0.20 +.008
(Mounting height)
0.65(.026)
"A" 0.240.08 (.009.003) 0.13(.005)
M
0~8 0.100.10 (Stand off) (.004.004) 0.25(.010)
0.10(.004)
0.500.20 (.020.008) 0.45/0.75 (.018/.030)
C
1999 FUJITSU LIMITED F20012S-3C-5
Dimensions in mm (inches)
17
MB88346L
FUJITSU LIMITED
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 are 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. The products described in this document are designed, developed and manufactured as contemplated for general use, including without limitation, ordinary industrial use, general office use, personal use, and household use, but are not designed, developed and manufactured as contemplated (1) for use accompanying fatal risks or dangers that, unless extremely high safety is secured, could have a serious effect to the public, and could lead directly to death, personal injury, severe physical damage or other loss (i.e., nuclear reaction control in nuclear facility, aircraft flight control, air traffic control, mass transport control, medical life support system, missile launch control in weapon system), or (2) for use requiring extremely high reliability (i.e., submersible repeater and artificial satellite). Please note that Fujitsu will not be liable against you and/or any third party for any claims or damages arising in connection with above-mentioned uses of the products. Any semiconductor devices have an inherent chance 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 Law of Japan, the prior authorization by Japanese government will be required for export of those products from Japan.
F0001 (c) FUJITSU LIMITED Printed in Japan

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