MB88346L

Manufacturer Part NumberMB88346L
DescriptionD/A Converter for Digital Tuning
ManufacturerFujitsu
MB88346L datasheet
 


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FUJITSU SEMICONDUCTOR
DATA SHEET
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 (V
/V
CC
• Ultra-low power consumption (0.5 mW/ch at 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
• 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)
: 2.7 to 3.6 V)
DD
= 3 V)
CC
CC
20-pin plastic SOP
(FPT-20P-M01)
DS04-13511-2E
20-pin plastic SSOP
(FPT-20P-M03)

MB88346L Summary of contents

  • Page 1

    ... 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 ...

  • Page 2

    ... MB88346L PIN ASSIGNMENT (Top view (DIP-20P-M02) (FPT-20P-M01) (FPT-20P-M03) GND CLK ...

  • Page 3

    ... 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. MB88346L 3 ...

  • Page 4

    ... MB88346L BLOCK DIAGRAM DI CLK 8-bit latch 8-bit R-2R D/A converter + – V GND CC 4 12-bit shift register Address decoder 8-bit latch 8-bit R-2R D/A converter D10 D11 – ...

  • Page 5

    ... 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 ...

  • Page 6

    ... MB88346L 3. Address Selection Signals D10 D11 0 0 Don’t Care selection selection selection selection selection ...

  • Page 7

    ... OPERATING DESCRIPTION 1. Timing Chart for Data Condition Setup MSB DI D11 CLK LD D/A data output 2. Analog Output Voltage Range R-2R ladder output GND = V SS D10 amp output AOH CC D/A output range (linear range) V (GND) AOL GND MB88346L LSB ...

  • Page 8

    ... MB88346L ABSOLUTE MAXIMUM RATINGS Prameter Power supply voltage Input voltage Output voltage Power consumption Operating temperature Storage temperature * : 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 ...

  • Page 9

    ... — – load SS Ideal straight line Non linearity error Note: The value of V Digital setting # FF MB88346L = – + Value Unit Min. Typ. Max. 2.7 3.0 3.6 V — 1.2 3.0 mA –10 — — — 0 — ...

  • Page 10

    ... MB88346L (3) Analog Block 2 (V Prameter Symbol Output minimum V AOL1 voltage 1 Output minimum V AOL2 voltage 2 Output minimum V AOL3 voltage 3 Output minimum V AOL4 voltage 4 Output minimum V AOL5 voltage 5 Output maximum V AOH1 voltage 1 Output maximum V AOH2 voltage 2 Output maximum V AOH3 voltage 3 Output maximum V AOH4 ...

  • Page 11

    ... CHL t — LDC t — LDH t See “• Load condition 1” See “• Load condition 2” LDD • Load condition MB88346L = – + Value Unit Min. Max. 200 — ns 200 — ns — 200 ns 30 — ...

  • Page 12

    ... Note: Decision levels and CHARACTERISTICS: EXAMPLE Pattern input CKH Cf t CKL t t DCH CHD t CHL +25°C 3.0 V 3.0 V MB88346L AO1 to CLK LD AO12 V GND SS t LDC t LDH t LDD Source current Sink current V (Continued) ...

  • Page 13

    ... Sink current 0.6 0.4 0.2 0.2 0.4 0.0 Sink current 0.6 0.4 0.2 0.2 0.4 0.0 Sink current MB88346L 0.6 0.8 1.0 [mA] Source current 0.6 0.8 1.0 [mA] Source current 0.6 0.8 1.0 [mA] Source current 13 ...

  • Page 14

    ... MB88346L ORDERING INFORMATION Part number MB88346LP MB88346LPF MB88346LPFV 14 Package 20-pin Plastic DIP (DIP-20P-M02) 20-pin Plastic SOP (FPT-20P-M01) 20-pin Plastic SSOP (FPT-20P-M03) Remarks ...

  • Page 15

    ... MAX TYP 1994 FUJITSU LIMITED D20003S-3C-4 C +0.20 –0.30 +.008 –.012 6.20±0.25 (.244±.010) 0.51(.020)MIN 0.25±0.05 (.010±.002) 0.46±0.08 (.018±.003) +0.30 –0 +.012 –0 MB88346L 15°MAX 7.62(.300) TYP Dimensions in mm (inches). (Continued) 15 ...

  • Page 16

    ... MB88346L 20-pin Plastic SOP (FPT-20P-M01) +0.25 12.70 –0.20 INDEX 1.27(.050) 0.45±0.10 TYP (.018±.004) "A" 0.10(.004) 11.43(.450)REF 1994 FUJITSU LIMITED F20003S-5C +.010 .500 –.008 5.30±0.30 7.80±0.40 (.209±.012) (.307±.016) Ø0.13(.005) M 2.25(.089)MAX (Mounting height) 0.05(.002)MIN (STAND OFF) +0 ...

  • Page 17

    ... Details of "A" part 10 "A" 0.24±0.08 0.13(.005) M (.009±.003) MB88346L +0.20 1.25 –0.10 (Mounting height) +.008 .049 –.004 0~8° 0.10±0.10 (Stand off) 0.50±0.20 (.004±.004) (.020±.008) ...

  • Page 18

    ... 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, ...