Fujitsu MB88346B D/a converter for digital tuning (12 channels. 8-bit, with op amplifier) Datasheet

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-13501-3E
Linear IC General purpose Converter
CMOS
D/A Converter for Digital Tuning
(12 channels. 8-bit, with OP amplifier)
MB88346B
■ DESCRIPTION
The MB88346B features 12 channels of 8-bit D/A converters with output amplifier for digital tuning. The output
amplifier provides high current drive capability.
As the MB88346B inputs data in serial, it requires only three control lines and can also be cascade-connected
with the MB88340 series.
The MB88346B is suitable for electronic volumes and replacement for potentiometers for adjustment, in addition
to normal D/A converter applications.
■ FEATURES
• Low power consumption
• Small package
• Integrating 12 channels of R-2R type 8-bit D/A converter
(Continued)
■ PACKAGES
20-pin plastic DIP
20-pin plastic SOP
20-pin plastic SSOP
(DIP-20P-M02)
(FPT-20P-M01)
(FPT-20P-M03)
MB88346B
(Continued)
• Built-in analog output amplifier (Max +1.0 mA sink/source current)
• Analog output range : 0 to VCC
• The range of D/A conversion can be independently set by separated the power supply for MCU interface and
OP amplifier and the power supply for D/A converter.
• Capable of being controlled directly by a 3-V MCU (input voltage : “H” = 0.5 VCC, “L” = 0.2 VCC)
• Serial data input, 2.5 MHz operation
• CMOS process
• Package lineup : DIP 20-pin, SOP 20-pin, SSOP 20-pin
2
MB88346B
■ PIN ASSIGNMENTS
(TOP VIEW)
(TOP VIEW)
VSS
1
20
GND
VSS
1
20
GND
AO3
2
19
AO2
AO3
2
19
AO2
AO4
3
18
AO1
AO4
3
18
AO1
AO5
4
17
DI
AO5
4
17
DI
AO6
5
16
CLK
AO6
5
16
CLK
AO7
6
15
LD
AO7
6
15
LD
AO8
7
14
DO
AO8
7
14
DO
AO9
8
13
AO12
AO9
8
13
AO12
AO10
9
12
AO11
AO10
9
12
AO11
10
11
VCC
VDD
10
11
VCC
VDD
(DIP-20P-M02)
(FPT-20P-M01)
(FPT-20P-M03)
■ PIN DESCRIPTION
Pin No.
Symbol
I/O
Pin name
Function
17
DI*
I
Data input pin
This pin inputs 12-bit serial data.
14
DO
O
Data output pin
This pin outputs MSB bit data of 12-bit shift register.
16
CLK*
I
Shift clock input pin
Input signal from DI pin is inputted to 12-bit shift register
at rising of shift clock.
15
LD*
I
Load signal input pin
If input “H” level to LD pin, the data of 12-bit shift register
is loaded to the decoder and the register for D/A output.
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
D/A output pin
These pins output analog data of 8-bit D/A converter with
OP amplifier.
11
VCC
⎯
Power supply pin
Power supply pin of MCU interface and OP amplifier
20
GND
⎯
Ground pin
Ground pin of MCU interface and OP amplifier
10
VDD
⎯
Power supply pin
Power supply pin of D/A converter
1
VSS
⎯
Ground pin
Ground pin of D/A converter
* : When three pins, DI, CLK, and LD pins are connected to 3-V MCU, they are fixed to “L” level at non transfer.
3
MB88346B
■ BLOCK DIAGRAM
VCC
GND
DI
CLK
12-bit shift register
D0
D1
D2
D3
D5
D6
D7
D8
D9
DO
D10 D11
Address decoder
8
12
D0
1
VCC GND
1 2 3 4
8-bit latch
12
D7
8-bit latch
8-bit
R-2R
D/A converter
+
+
_
−
AO1
LD
12
D0
D7
8-bit
R-2R
D/A converter
4
D4
AO12 VDD VSS
MB88346B
■ DATA FOR CHIP CONTROL
1. Data for Shift Register
• The chip is controlled by 12 bits of data input to the shift register.
• The shift register inputs a total of 12 bits of data consisting of a four-bit address selection signal and an eightbit D/A converter control signal.
• A data to the shift register is inputted to the DI pin in the order of D11 (MSB) to D0 (LSB) .
Last (LSB)
D0
First (MSB)
D1
D2
D3
D4
D5
D6
D7
D/A converter control signal
D8
D9
D10
D11
Address selected signal
2. D/A Converter Control Signal
Input data signal
D/A converter output voltage
D0
D1
D2
D3
D4
D5
D6
D7
0
0
0
0
0
0
0
0
≅ VSS
1
0
0
0
0
0
0
0
≅ VREF / 255 × 1 + VSS
0
1
0
0
0
0
0
0
≅ VREF / 255 × 2 + VSS
1
1
0
0
0
0
0
0
≅ VREF / 255 × 3 + VSS
0
1
1
1
1
1
1
1
≅ VREF / 255 × 254 + VSS
1
1
1
1
1
1
1
1
≅ VDD
VREF = VDD - VSS
5
MB88346B
3. Address Selected Signal
Input data signal
6
Address selected sequence
D8
D9
D10
D11
0
0
0
0
Don't Care
0
0
0
1
AO1 selected
0
0
1
0
AO2 selected
0
0
1
1
AO3 selected
0
1
0
0
AO4 selected
0
1
0
1
AO5 selected
0
1
1
0
AO6 selected
0
1
1
1
AO7 selected
1
0
0
0
AO8 selected
1
0
0
1
AO9 selected
1
0
1
0
AO10 selected
1
0
1
1
AO11 selected
1
1
0
0
AO12 selected
1
1
0
1
Don't Care
1
1
1
0
Don't Care
1
1
1
1
Don't Care
MB88346B
■ TIMING CHART AT DATA SETTING
MSB
DI
D11
LSB
D10
D9
D8
D2
D1
D0
CLK
LD
D/A output
(AO1 to AO12)
■ ANALOG OUTPUT VOLTAGE RANGE
R-2R ladder output
VDD
OP amplifier output
VCC
VAOH (VCC)
D/A output range
(linear area)
VAOL (GND)
VSS
GND
Note : VCC = VDD, GND = VSS
7
MB88346B
■ ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Power supply voltage
Input voltage
VCC
VDD
VIN
Output voltage
Condition
The case that GND is
referred.
Ta = +25 °C
VOUT
Rating
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
Power consumption
PD
⎯
⎯
250
mW
Operating temperature
Ta
⎯
− 40
+ 85
°C
Tstg
⎯
− 55
+ 150
°C
Storage temperature
Remarks
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
Parameter
Symbol
Value
Unit
Min
Max
VCC
4.5
5.5
V
GND
⎯
0
V
Isource
⎯
1.0
mA
Analog output sink current
Isink
⎯
1.0
mA
Oscillation limited output capacitance
COL
⎯
1.0
µF
Operating temperature
Ta
− 40
+ 85
°C
Power supply Voltage
Analog output source current
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
MB88346B
■
ELECTRICAL CHARACTERISTICS
1. DC Characteristics
(1) Digital block
Parameter
Power supply voltage
(VDD, VCC = + 5 V ± 10% (VCC ≥ VDD) , GND, VSS = 0 V, Ta = − 40 °C to + 85 °C)
Value
Symbol Pin name
Conditions
Unit
Min
Typ
Max
⎯
4.5
5.0
5.5
V
At CLK = 1 MHz operating
(at no load)
⎯
2.5
4.5
mA
− 10
⎯
10
µA
⎯
⎯
⎯
0.2 VCC
V
⎯
0.5 VCC
⎯
⎯
V
⎯
⎯
0.4
V
VCC − 0.4
⎯
⎯
V
VCC
Power supply current
ICC
Input leakage current
IILK
“L” level input voltage
VIL
“H” level input voltage
VIH
“L” level output voltage
VOL
“H” level output voltage
VOH
VCC
CLK
DI
LD
DO
VIN = 0 to VCC
IOL = 2.5 mA
IOH = − 400 µA
Note : IOL and IOH are output load current.
(2) Analog block
Parameter
(VDD, VCC = + 5 V ± 10% (VCC ≥ VDD) , GND, VSS = 0 V, Ta = − 40 °C to + 85 °C)
Value
Symbol Pin name
Conditions
Unit
Min
Typ
Max
⎯
0.2
0.5
mA
2.0
⎯
VCC
V
GND
⎯
VCC − 2.0
V
⎯
8
⎯
bit
No load VDD ≤ VCC − 0.1 V
VSS ≥ 0.1 V
− 1.5
0
1.5
LSB
DLE
No load VDD ≤ VCC − 0.1 V
VSS ≥ 0.1 V
− 1.0
⎯
1.0
LSB
Output minimum
voltage 1
VAOL1
No load, VSS = 0 V
When digital setting is #00.
VSS
⎯
VSS + 0.1
V
Output minimum
voltage 2
VAOL2
Isource = 500 µA
VSS − 2.0
When digital setting is #00.
VSS
VSS + 0.2
V
Output minimum
voltage 3
VAOL3
Isink = 500 µA
When digital setting is #00.
⎯
VSS + 0.2
V
VDD = VCC = 5.0 V
VSS = GND = 0.0 V
VSS − 0.3
Isource = 1.0 mA
When digital setting is #00.
VSS
V SS + 0.3
V
VDD = VCC = 5.0 V
VSS = GND = 0.0 V
Isink = 1.0 mA
When digital setting is #00.
⎯
V SS + 0.3
V
Consumption current
IDD
VDD
Analog power
supply voltage
VDD
VDD
VSS
VSS
Resolution
Res
Non linearity error
LE
Differential linearity
error
Output minimum
voltage 4
Output minimum
voltage 5
VAOL4
VAOL5
No load
VDD − VSS ≥ 2.0 V
Monotonic increase
AO1 to
AO12
AO 1
to
AO 12
VSS
VSS
(Continued)
9
MB88346B
(Continued)
Parameter
(VDD, VCC = + 5 V ± 10% (VCC ≥ VDD) , GND, VSS = 0 V, Ta = − 40 °C to + 85 °C)
Value
Symbol Pin name
Conditions
Unit
Min
Typ
Max
Output maximum
voltage 1
VAOH1
No load, VDD = VCC
VDD − 0.1
When digital setting is #FF.
⎯
V DD
V
Output maximum
voltage 2
VAOH2
Isource = 500 µA
VDD − 0.2
When digital setting is #FF.
⎯
V DD
V
Output maximum
voltage 3
VAOH3
Isink = 500 µA
VDD − 0.2
When digital setting is #FF.
V DD
V DD + 0.2
V
VDD = VCC = 5.0 V
VSS = GND = 0.0 V
VDD − 0.3
Isource = 1.0 mA
When digital setting is #FF.
⎯
V DD
V
VDD = VCC = 5.0 V
VSS = GND = 0.0 V
VDD − 0.3
Isink = 1.0 mA
When digital setting is #FF.
V DD
V DD + 0.3
V
Output maximum
voltage 4
Output maximum
voltage 5
VAOH4
AO 1
to
AO 12
VAOH5
Non linearity error
: The error of the I/O curve from the ideal straight line between output voltages at "00"
and "FF".
Differential linearity error : The error from the ideal increment given when the digital value is incremented by one
bit.
Analog output
Ideal straight line
VAOH
Non linearity error
VAOL
#00
#FF
Digital setting
Note : VAOH and VAOL do not always match VDD and VSS, respectively.
10
MB88346B
2. AC Characteristics
Parameter
(VDD, VCC = + 5 V ± 10% (VCC ≥ VDD) , GND, VSS = 0 V, Ta = − 40 °C to + 85 °C)
Value
Symbol
Conditions
Unit
Min
Max
“L” level clock pulse width
tCKL
⎯
200
⎯
“H” level clock pulse width
tCKH
⎯
200
⎯
Clock rising time
Clock falling time
tCr
tCf
⎯
⎯
200
Data setup time
tDCH
⎯
30
⎯
Data hold time
tCHD
⎯
60
⎯
Load setup time
tCHL
⎯
200
⎯
Load hold time
tLDC
⎯
100
⎯
“H” level load pulse width
tLDH
⎯
100
⎯
Data output delay time
tDO
Refer to “Load condition (1) ”.
70
350
D/A output settling time
tLDD
Refer to “Load condition (2) ”.
⎯
20
ns
µs
• Load condition
(1)
Measurement point
Measurement point
(2)
D/A output
(AO1 to AO12)
DO
CL (20 pF ≤ CL ≤ 100 pF)
RAL = 10 kΩ
CAL = 50 pF
11
MB88346B
• Input/output timing
tCr
tCKH
tCf
CLK
tCKL
tLDC
DI
tDCH
tCHD
tLDH
tCHL
LD
tLDD
D/A output
(AO1 to AO12)
tDO
DO
Note : The D/A output evaluation level is 90% and 10% of VCC. The other evaluation level is 80% and 20% of VCC.
12
MB88346B
■ EXAMPLE CHARACTERISTICS
Example of analog output voltage vs. sink/source current characteristics
(V)
+0.3
+0.2
+0.1
Analog output voltage
VDD
−0.1
−0.2
−0.3
+0.3
+0.2
+0.1
VSS
−0.1
−0.2
−0.3
−0.1
−0.5
Sink current ISINK ←
0
0.5
1.0
(mA)
→ Source current ISOURCE
13
MB88346B
■ ORDERING INFORMATION
Part No.
MB88346BP
20-pin plastic DIP
(DIP-20P-M02)
MB88346BPF
20-pin plastic SOP
(FPT-20P-M01)
MB88346BPFV
14
Package
20-pin plastic SSOP
(FPT-20P-M03)
Remarks
MB88346B
■ PACKAGE DIMENSIONS
20-pin plastic DIP
(DIP-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
+.012
.034 –0
1.27(.050)
MAX
C
+0.30
1.27 –0
+.012
.050 –0
2.54(.100)
TYP
7.62(.300)
TYP
15˚MAX
1994 FUJITSU LIMITED D20003S-3C-4
Dimensions in mm (inches).
Note : The values in parentheses are reference values.
(Continued)
15
MB88346B
Note 1) *1 : These dimensions include resin protrusion.
Note 2) *2 : These dimensions do not include resin protrusion.
Note 3) Pins width and pins thickness include plating thickness.
Note 4) Pins width do not include tie bar cutting remainder.
20-pin plastic SOP
(FPT-20P-M01)
+0.25
+.010
+0.03
*112.70 –0.20 .500 –.008
0.17 –0.04
+.001
20
.007 –.002
11
*2 5.30±0.30
7.80±0.40
(.209±.012) (.307±.016)
INDEX
Details of "A" part
+0.25
2.00 –0.15
+.010
.079 –.006
1
"A"
10
1.27(.050)
0.47±0.08
(.019±.003)
0.13(.005)
(Mounting height)
0.25(.010)
0~8˚
M
0.50±0.20
(.020±.008)
0.60±0.15
(.024±.006)
+0.10
0.10 –0.05
+.004
.004 –.002
(Stand off)
0.10(.004)
C
2002 FUJITSU LIMITED F20003S-c-7-7
Dimensions in mm (inches).
Note: The values in parentheses are reference values.
(Continued)
16
MB88346B
(Continued)
Note 1) *1 : Resin protrusion. (Each side : +0.15 (.006) Max).
Note 2) *2 : These dimensions do not include resin protrusion.
Note 3) Pins width and pins thickness include plating thickness.
Note 4) Pins width do not include tie bar cutting remainder.
20-pin plastic SSOP
(FPT-20P-M03)
*1 6.50±0.10(.256±.004)
0.17±0.03
(.007±.001)
20
11
*24.40±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)
0.13(.005)
M
0~8˚
0.50±0.20
(.020±.008)
0.60±0.15
(.024±.006)
0.10±0.10
(Stand off)
(.004±.004)
0.25(.010)
2003 FUJITSU LIMITED F20012S-c-4-6
Dimensions in mm (inches).
Note: The values in parentheses are reference values.
17
MB88346B
FUJITSU LIMITED
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F0503
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