MB88346LP

Manufacturer Part NumberMB88346LP
DescriptionD/A Converter for Digital Tuning (12-channel, 8-bit, on-chip OP amp, low-voltage)
ManufacturerFUJITSU [Fujitsu Component Limited.]
MB88346LP 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
■ DESCRIPTION
The Fujitsu MB88346L is a 12-channel 8-bit D/A converter capable of low-voltage operation that has amplifiers
built into each of the 12 analog output lines to deliver heavy-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 replacing trimmer potentiom-
eters in tuning systems. In addition, the MB88346L is both function-compatible and pin-compatible the currently
used MB88346B, making it easy to reduce the voltage level of a system by simply replacing the MB88346B with
the MB88346L.
■ 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, SSOP 20-pin
Copyright©2000-2006 FUJITSU LIMITED All rights reserved
: 2.7 V to 3.6 V)
DD
= 3 V)
CC
CC
DS04-13511-3E

MB88346LP Summary of contents

  • Page 1

    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 ■ DESCRIPTION The Fujitsu MB88346L is a 12-channel 8-bit D/A converter capable of low-voltage operation that has amplifiers built into ...

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    MB88346L ■ PIN ASSIGNMENT (Top view ...

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    PIN DESCRIPTION Pin No. Symbol I CLK ...

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    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 ...

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    DATA CONFIGURATION The MB88346L has a 12-bit shift register for controlling the chip. The data passed to the 12-bit shift register needs to be supplied in the following format. The data structure consists of a total of 12 bits, ...

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    MB88346L 3. Address Selection Signals ...

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    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 ...

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    MB88346L ■ ABSOLUTE MAXIMUM RATINGS Parameter 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, ...

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    ELECTRICAL CHARACTERISTICS 1. DC Characteristics (1) Digital Block (V Parameter Symbol Power supply voltage V CC Power supply current Input leak current I ILK L level input voltage level input voltage V IH ...

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    MB88346L (3) Analog Block 2 Parameter 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 ...

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    AC Characteristics (V DD Parameter 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 ...

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    MB88346L • Input/output timing CLK DI LD D/A output DO Note: Decision levels and ■ CHARACTERISTICS : EXAMPLE Pattern input CKH Cf t ...

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    (Continued) #FF setting [mV] 3,000 2,980 2,960 2,940 2,920 2,900 2,880 2,860 2,840 2,820 2,800 1.0 #80 setting [mV] 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 [mV] #00 setting 200 180 160 140 120 ...

  • Page 14

    ... MB88346L ■ ORDERING INFORMATION Part number MB88346LP MB88346LPFV 14 Package 20-pin plastic DIP (DIP-20P-M02) 20-pin plastic SSOP (FPT-20P-M03) Remarks ...

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    PACKAGE DIMENSIONS 20-pin plastic DIP (DIP-20P-M02) 20-pin plastic DIP (DIP-20P-M02) INDEX-1 INDEX-2 4.36(.172)MAX 3.00(.118)MIN +0.30 0.86 –0 +.012 .034 –0 1.27(.050) 2.54(.100) MAX 1994 FUJITSU LIMITED D20003S-3C-4 C Please confirm the latest Package dimension by following URL. http://edevice.fujitsu.com/fj/DATASHEET/ef-ovpklv.html Lead ...

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    MB88346L (Continued) 20-pin plastic SSOP (FPT-20P-M03) 20-pin plastic SSOP (FPT-20P-M03 6.50±0.10(.256±.004) 20 INDEX LEAD No. 1 0.65(.026) 0.10(.004) 2003 FUJITSU LIMITED F20012S-c-4-6 C Please confirm the latest Package dimension by following URL. http://edevice.fujitsu.com/fj/DATASHEET/ef-ovpklv.html 16 Lead pitch Package width ...

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    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, such as descriptions of function and application circuit examples, in ...