FUJITSU MB40968V

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-28308-3E
ASSP
2-Channel 8-BIT D/A Converter
MB40968/40968V
■ DESCRIPTION
The Fujitsu MB40968/40968V is a 2-channel 8-bit high speed digital to analog converter for video frequency
band fabricated by Fujitsu Advanced Bipolar Technology. This is suitable for YC signal processing of digital VCR.
■ FEATURES
•
•
•
•
•
Resolution:
8-bits
Linearity error:
±0.2% (max.)
Maximum conversion rate:
30 MHz (Min.)
Analog output voltage range:
3 to 5V
Reference voltage output:
MB40968: Resistance-type potential divider output (3/5 × VCCA)
MB40968V: Band gap reference output (VCCA – 2 [V])
• Digital input voltage:
• Single power supply voltage:
• Power dissipation:
TTL level
+5.0 [V]
270 [mW] (typ)
■ PACKAGE
Plastic DIP, 28 pin
Plastic FTP, 28 pin
(DIP-28P-M03)
(FTP-28P-M01)
MB40968/40968V
■ PIN ASSIGNMENT
(TOP VIEW)
1
28
A4
A6
2
27
A3
A7
3
26
A2
A 8(LSB)
4
25
A 1(MSB)
V CCD
A5
CLKA
5
24
B 1(MSB)
6
23
V CCA
B2
7
22
A OUT
B3
8
21
A.GND
B4
9
20
B OUT
B5
10
19
V CCA
B6
11
18
V RIN
B7
12
17
V ROUT
B 8(LSB)
13
16
COMP
14
15
D.GND
CLKB
2
MB40968/40968V
■ PIN DESCRIPTION
Pin Number
Symbol
I/O
Descriptions
25 to 28
1 to 4
A1 to A8
I
A-channel Digital Signal Inputs: A1 (MSB), A8 (LSB)
6 to 13
B1 to B8
I
B- channel Digital Signal Inputs: B1 (MSB), B8 (LSB)
5
CLKA
I
A-channel Clock Input
14
CLKB
I
B-channel Clock Input
24
VCCD
—
Power Supply for Digital Circuit
19, 23
VCCA
—
Power Supply for Analog Circuit, two pins (19,23) should be used.
15
D-GND
—
Ground for Digital Circuit
21
A-GND
—
Ground for Analog Circuit
I
Terminal for reference voltage input.
Zero scale voltage of analog output is specified applying any voltage to
this terminal.
Input reference voltage should be 2.7 to 4.3V and,
VCCA – VRIN ≤ 2.2V
O
Terminal for reference voltage output by resistance-type potential
divider.
Analog output of “VCCA to 3/5 × VCCA” is supplied connecting this
terminal with VRIN terminal.
MB40968V
VROUT
O
Terminal for reference voltage output consists of Band Gap reference.
This terminal supplies the voltage of “VCCA to VCCA – 2V”.
2V output is maintained connecting this terminal with VRIN, even if the
power supply fluctuates frequently.
16
COMP
—
Terminal for phase compensation capacitance;
Capacitance of 1 µF or more should be inserted between COMP and AGND.
22
AOUT
O
A-channel Analog Signal Output
20
BOUT
O
B-channel Analog Signal Output
18
VRIN
MB40968
VROUT
17
3
MB40968/40968V
■ BLOCK DIAGRAM
CLK A
A-OUT
A 1(MSB)
A2
A3
A4
A5
Input
Buffer
8
Master
Slave
F-F
Buffer
8
8
Current
Switch
A6
A7
A 8(LSB)
(A)
(A)
(A)
(A)
CLK B
B-OUT
B 1(MSB)
B2
B3
B4
B5
Input
Buffer
8
Master
Slave
F-F
Buffer
8
8
Current
Switch
B6
B7
B 8(LSB)
(B)
(B)
(B)
(B)
Reference
Resistor
AMP.
Reference Voltage
D.GND
4
A.GND
V ROUT
V RIN
COMP
V CCD
V CCA
MB40968/40968V
■ ABSOLUTE MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Power supply voltage
VCCA, VCCD
–0.5 to +7.0
V
Supply voltage difference
VCCD – VCCA
1.5
V
Digital input voltage
VID
–0.5 to +7.0
V
Storage temperature
TSTG
–55 to +125
°C
Precautions: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this
data sheet. Exposure to absolute maximum rating conditions for extended periods may affect device
reliability.
■ RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Value
Unit
Min.
Typ.
Max.
VCCA, VCCD
(VCCA – VCCD)
4.75
(–0.2)
5.00
5.25
(0.2)
VCCA – VRIN
0.70
2.00
2.20
VRIN
2.70
3.00
4.30
High level digital Input voltage
VIHD
2.0
—
—
V
Low level digital input voltage
VILD
—
—
0.8
V
Clock frequency
fCLK
—
—
30
MHz
Data set up time
tSU
10.0
—
—
ns
Data hold time
th
4.0
—
—
ns
High level clock pulse width
tWH
10.0
—
—
ns
Low level clock pulse width
tWL
10.0
—
—
ns
CCOMP
1.0
—
—
µF
Top
0
—
70
°C
Power supply voltage
Analog reference voltage
Phase compensation capacitance
Operating temperature
V
V
5
MB40968/40968V
■ ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Condition
Resolution
—
—
Linearity error
LE
Reference input current
(VCC = 4.75 to 5.25V, Ta = 0 to 70°C)
Value
Unit
Min.
Typ.
Max.
—
—
8
Bit
DC
—
—
±0.2
%
IRIN
VRIN = 3.000 (V)
—
—
10
µA
High level digital input current
IIHD
VIHD = 2.7 (V)
—
—
20
µA
Low level digital input current
IILD
VILD = 0.4 (V)
–100
—
—
µA
2-channel’s output voltage ratio
FSR*1
VCCA = 5.00 (V)
VCCD = 5.00 (V)
VRIN = VROUT
0
—
4
%
Full-scale analog output voltage
VOFS
VCCA = 5.00 (V)
VCCD = 5.00 (V)
VRIN = VROUT
VCCA
–0.015
VCCA
—
V
Zero-scale analog output voltage
VOZS
VCCA = 5.00 (V)
VCCD = 5.00 (V)
VRIN = 3.000 (V)
2.938
3.008
3.078
V
192
240
288
Ω
Output resistance
RO
Ta = 25°C
Power supply current
ICC
VCCA = 5.25 (V)
VCCD = 5.25 (V)
VRIN = VROUT
—
54*2
80
mA
VROUT
VCCA = 5.00 (V)
VCCD = 5.00 (V)
2.900
3.000
3.100
V
V OFS ( A ) – V OZS ( A )
V OFS ( B ) – V OZS ( B )
*1: FSR = ------------------------------------------------- – 1 × 100 %
*2: VCC = 5.00 (V)
MB40968
Reference output voltage
MB40968V
6
Reference output voltage
VROUT
—
VCCA
–2.100
VCCA
–2.000
VCCA
–1.900
V
Reference output voltage
temperature constant
—
—
—
100
—
ppm/°C
MB40968/40968V
Switching Characteristics
Parameter
(VCC = 4.75 to 5.25V, Ta = 0 to 70°C)
Value
Unit
Min.
Typ.
Max.
Symbol
Condition
Minimum conversion rate
Fs
—
30
—
—
MSPS
Output delay time
tPLH
tPHL
CL = 15 pF
—
10
—
ns
Terminated A.OUT
pin with 240Ω
—
5
—
ns
—
5
—
ns
Terminated B.OUT
pin with 240Ω
—
15
—
ns
Output rise time
tr
Output fall time
tf
Settling time
tsetLH
tsetHL
7
MB40968/40968V
Figure 1
DAC Output Voltage
Input
Output
A1–8
B1–8
A OUT
B OUT
(V CCA)
FF
V OFS
5.000 V
5.000 V
00
V OZS
(V RIN)
3.008 V
3.000 V
1 LSB = 8 mV
Figure 2 Timing Diagram
t su
th
3V
Data Input
1.5V
0V
t wH
t wL
3V
1.5V
Clock Output
0V
±1/2 LSB
90%
50%
±1/2 LSB
10%
V OZS
Analog Output
tr
tf
t PHL
t PLH
t setLH
8
t setHL
MB40968/40968V
Figure 3 Digital Input Equivalent Circuit (A1 to A8, B1 to B8, CLKA, CLKB)
V CCD
50 kΩ
50 kΩ
Threshold Voltage ≅ 1.4 V
Degital Input
D.GND
Figure 4 Analog Output Equivalent Circuit
(AOUT, BOUT)
Figure 5 MB40968 Reference Output Voltage
(VROUT)
V CCA
V CCA
R 0 = 240Ω
4 kΩ
V ROUT
Analog Output
6 kΩ
IO
A.GND
A.GND
Figure 6 MB40968V Reference Output Voltage (VROUT)
V CCA
B.G.R
RS*
V ROUT
+
Note*:Reference for preventing over current when short circuit with GND.
9
MB40968/40968V
The relations between Digital input code and Analog output voltage of MB40968/40968V are ideally indicated
as follows.
255 – N
AOUT N ( BOUT N ) = V CCA – -------------------- × ( V CCA – V RIN )
256
N: 0 to 255 Digital Input Code
V OFS = V CCA
255
V OZS = V CCA – ---------- × ( V CCA – V RIN )
256
Output Voltage Ratio between 2 channels is calculated as follows.
V OFS ( A ) – V OZS ( A )
FSR = ------------------------------------------------- – 1 × 100%
V OFS ( B ) – V OZS ( B )
10
MB40968/40968V
■ TYPICAL CONNECTION EXAMPLE
5V
2.2µH
0.01µF
47µF
V CCD
2.2µH
47µF
0.01µF
V CCA
A 1 to A 8
A OUT
B 1 to B 8
B OUT
DATA Input
CLK Input
CLK A
CLK B
D.GND
V RIN
V ROUT
COMP
A.GND
1µF
11
MB40968/40968V
■ PRECAUTIONS
1. Inter-channel Crosstalk
The MB88361 is a 2-channel D/A converter, requiring the use of special mounting methods to minimize crosstalk
between analog output pins.
Specifically, it is recommended that PC board designs should emphasize the prevention of large coupling
capacities between analog output lines. (See ■TYPICAL CHARACTERISTIC CURVES.)
2. Prevention of Switching Noise
To reduce superimposed switching noise on the analog output signal to an absolute minimum, it is recommended
that a noise limiting capacitor between the VCCA and VCCD pins be placed as close as possible to the pins and
connected to the A.GND and D.GND pins.
3. Power Supply Patterns
Power supply patterns connected to the A.GND and B.GND pins should be as possible in order to reduce
parasitic impedance.
12
MB40968/40968V
■ TYPICAL CHARACTERISTIC CURVES
Figure 7 Power Supply Current vs.
Operating Temperature
Figure 8 Linearity Error vs.
Operating Temperature
0.2
V CC=5.25 V
V RIN=V ROUT
V CC=5.00 V
V RIN=3.000 V
80
Linearity Error |LE|(%)
Power Supply Current I CC(mA)
100
60
40
20
0
-25
0
25
50
75
0.15
0.1
0.05
0
-25
100
Operating Temperature Ta(°C)
260
240
220
50
75
100
Full-Scale Analog Output Voltage V OFS(V)
Output Resistance R O(Ω)
280
25
V CC
(reference)
-6
-8
-10
-25
3.000
2.950
Operation Temperature Ta(°C)
25
50
75
100
Figure 12 MB40968 Reference Output Voltage
vs. Operating Temperature
Reference Output Voltage V ROUT(V)
Zero-Scale Analog Output Voltage V OZS(V)
3.050
75
0
3.100
V CC=5.00 V
V RIN=3.000 V
50
V CC=5.00 V
V RIN=V ROUT
-4
3.100
25
100
Operating Temperature Ta(°C)
Figure 11 Zero-Scale Analog Output Voltage
vs. Operating Temperature
0
75
-2
Operating Temperature Ta(°C)
2.900
-25
50
Figure 10 Full-Scale Analog Output Voltage
vs. Operating Temperature
300
0
25
Operating Temperature Ta(°C)
Figure 9 Output Resistance vs.
Operating Temperature
200
-25
0
100
V CC=5.00 V
3.050
3.000
2.950
2.900
-25
0
25
50
75
100
Operating Temperature Ta(°C)
(Continued)
13
MB40968/40968V
Reference Output Voltage V ROUT(V)
3.200
V CC=5.00 V
3.100
3.000
2.900
2.800
-25
0
25
50
75
100
Figure 14 MB40968V Analog Reference Voltage
vs. Power Supply Voltage
Power Supply Voltage-Analog Reference Voltage
[V CC-V ROUT](V)
Figure 13 MB40968V Reference Output Voltage
vs. Operating Temperature
2.200
Ta=+25°C
2.100
2.000
1.900
1.800
3.5
Operating Temperature Ta(°C)
Data Set Up Time t SU(ns)
Data Set Up Time t SU(ns)
6
4
2
75
8
6
4
2
0
3.5
100
Operating Temperature Ta(°C)
4.0
4.5
5.0
6.0
Figure 18 Data Hold Time vs.
Power Supply Voltage
6
6
Ta=+25°C
V CC=5.00 V
4
Data Hold Time t h(ns)
Data Hold Time t h(ns)
5.5
Power Supply Voltage V CC(V)
Figure 17 Data Hold Time vs.
Operating Temperature
2
0
4
2
0
-2
-2
-4
-25
6.0
Ta=+25°C
8
50
5.5
10
V CC=5.00 V
25
5.0
Figure 16 Data Set Up Time vs.
Power Supply Voltage
10
0
4.5
Power Supply Voltage V CC(V)
Figure 15 Data Set Up Time vs.
Operating Temperature
0
-25
4.0
0
25
50
75
Operating Temperature Ta(°C)
100
-4
3.5
4.0
4.5
5.0
5.5
6.0
Power Supply Voltage V CC(V)
(Continued)
14
MB40968/40968V
(Continued)
20
16
V CC=5.00 V
V RIN=V ROUT
C L=15 pF
tr
12
tf
8
tr
4
0
-25
OUTPUT OPEN
(2 V amplitude)
tf
0
25
OUTPUT 240 Ω
(1 V amplitude)
50
75
100
Figure 20 Output Rise, Fall Time vs.
Power Supply Voltage
Output Rise Time t r Output Fall Time t f(ns)
Output Rise Time t r Output Fall Time t f (ns)
Figure 19 Output Rise, Fall Time vs.
Operating Temperature
20
Ta=25°C
V RIN=V ROUT
C L=15 pF
16
12
OUTPUT OPEN
(2 V amplitude)
tr
tf
8
tr
4
OUTPUT 240 Ω
(1 V amplitude)
0
3.5
Operating Temperature Ta(°C)
20
Output Delay Time t PHL,t PLH(ns)
Output Delay Time t PHL,t PLH(ns)
V CC=5.00 V
V RIN=V ROUT
C L=15 pF
OUTPUT OPEN
(2 V amplitude)
8
OUTPUT 240 Ω
(1 V amplitude)
4
0
-25
0
25
50
75
16
8
6
t WL
t WH
2
75
Operating Temperature Ta(°C)
4.0
4.5
5.0
5.5
6.0
10
Ta=25°C
Clock Pulse Width t W (ns)
Clock Pulse Width t W (ns)
8
50
OUTPUT 240 Ω
(1 V amplitude)
4
Figure 24 Clock Pulse Width vs.
Power Supply Voltage
V CC=5.00 V
25
Ta=25°C
V RIN=V ROUT
C L=15 pF
Power Suppry Voltage V CC(V)
10
0
6.0
OUTPUT OPEN
(2 V amplitude)
0
3.5
100
Figure 23 Clock Pulse Width vs.
Operating Temperature
0
-25
5.5
12
Operating Temperature Ta(°C)
4
5.0
Figure 22 Output Delay Time vs.
Power Supply Voltage
20
12
4.5
Power Supply Voltage V CC(V)
Figure 21 Output Delay Time vs.
Operating Temperature
16
4.0
tf
100
8
6
4
t WL
2
0
3.5
t WH
4.0
4.5
5.0
5.5
6.0
Power Supply Voltage V CC(V)
15
MB40968/40968V
■ PACKAGE DIMENSION
Plastic DIP, 28 pin
(DIP-28P-M03)
+0.20
26.00 –0.30
1.024
+.008
–.012
INDEX-1
9.10±0.25
(.358±.010)
INDEX-2
4.85(.191)MAX
0.51(.020)MIN
0.25±0.05
(.010±.002)
3.00(.118)MIN
0.45±0.10
(.018±.004)
+0.50
1.00 –0
+.020
.039 –0
1.778±0.18
(.070±.007)
1.778(.070)
MAX
10.16(.400)
TYP
15°MAX
23.114(.910)REF
Dimensions in mm (inch)
C
16
1994 FUJITSU LIMITED D28012S-3C-3
MB40968/40968V
Plastic FTP, 28 pin
(FTP-28P-M01)
+0.25
+.010
17.75 –0.20 .699 –.008
2.80(.110)MAX
0.05(.002)MIN
(STAND OFF)
7.60±0.30 10.20±0.40
(.299±.012) (.402±.016)
9.20±0.30
(.362±.012)
1 PIN INDEX
1.27(.050)TYP
0.45±0.10
(.018±.004)
+0.05
Ø0.13(.005)
M
0.15 –0.02
+.002
.006 –.001
0.50±0.20
(.020±.008)
Details of "A" part
0.20(.008)
0.10(.004)
"A"
16.51(.650)REF
0.60(.024)
0.18(.007)MAX
0.68(.027)MAX
C
1994 FUJITSU LIMITED F28005S-5C-4
Dimensions in mm (inch)
17
MB40968/40968V
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) 754-3753
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 Pacific
FUJITSU MICROELECTRONICS ASIA PTE. LIMITED
No. 51 Bras Basah Road,
Plaza By The Park,
#06-04 to #06-07
Singapore 189554
Tel: 336-1600
Fax: 336-1609
All Rights Reserved.
Circuit diagrams utilizing Fujitsu products are included as a
means of illustrating typical semiconductor applications. Complete information sufficient for construction purposes is not necessarily given.
The information contained in this document has been carefully
checked and is believed to be reliable. However, Fujitsu assumes no responsibility for inaccuracies.
The information contained in this document does not convey any
license under the copyrights, patent rights or trademarks claimed
and owned by Fujitsu.
Fujitsu reserves the right to change products or specifications
without notice.
No part of this publication may be copied or reproduced in any
form or by any means, or transferred to any third party without
prior written consent of Fujitsu.
The information contained in this document are not intended for
use with equipments which require extremely high reliability
such as aerospace equipments, undersea repeaters, nuclear control systems or medical equipments for life support.
F9607
 FUJITSU LIMITED
18
Printed in Japan