Multimedia ICs
3-channel, 8-bit D / A converter
BU3616K
The BU3616K, a CMOS IC, is a high-speed, low-power-consumption 3-channel 8-bit D / A converter. Its internal reference voltage source eliminates the need for an external reference voltage source.
Applications
•Video
CDs, CD-V, CD karaoke
•1)Features
8-bit resolution.
2) Current output.
3) Low power consumption (typically 75mW).
4) High-speed operation.
5) Internal reference voltage circuit.
6) TTL input.
•Absolute maximum ratings (Ta = 25°C)
Symbol
Limits
Unit
Power supply voltage
Parameter
DVDD
– 0.5 ~ + 7.0
V
Analog power supply voltage
AVDD
DVDD – 0.3 ~ DVDD + 0.3
V
Input voltage
VIN
– 0.5 ~ DVDD + 0.5
Output voltage
VOUT
– 0.5 ~ DVDD + 0.5
V
Storage temperature
Tstg
– 55 ~ + 125
°C
Power dissipation∗1
PD
500
mW
V
∗1 Reduced by 5.0mW for each increase in Ta of 1°C over 25°C.
•Recommended operating conditions
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power supply voltage
DVDD
4.5
5.0
5.5
V
Analog power supply voltage
AVDD
4.5
5.0
5.5
V
Transfer clock width
TCK
58.8
—
—
ns
Transfer clock width, low level
TCKL
15
—
—
ns
RGB setup time
TS
5
—
—
ns
RGB hold time
TH
10
—
—
ns
Input voltage, low level
VIL
—
—
0.8
V
Input voltage, high level
VIH
Operating temperature
TOPR
2.2
—
—
V
– 10
—
70
°C
Conditions
1
Multimedia ICs
BU3616K
G6
14
G5
15
G4
16
G3
17
R2
R3
R4
DVDD1
DGND1
R5
R6
R7
AGND1
Iref
8
7
6
5
4
3
2
1
Vref
LATCH
13
9
CURRENT
CELL
LATCH
G7
10
DECODER
12
11
DECODER
R0
R1
•Block diagram
CURRENT
CELL
44
OUTR
43
AVDDR
42
AGNDR
41
N.C.
40
OUTG
39
AVDDG
38
AGNDC
37
N.C.
36
OUTB
18
G1
19
G0
20
B7
21
35
AVDDB
B6
22
34
AGNDB
LATCH
25
26
27
28
29
30
B4
B3
B2
DVDD2
DGND2
B1
B0
otherwise noted, Ta = 25°C, DV
•Electrical characteristics (unless
F = 15MHz)
DD
31
32
33
Vref
24
AVDD2
23
B5
CURRENT
CELL
CLK
DECODER
G2
= 5.0V, AVDD = 5.0V, RREF = 6.8kΩ, RL = 470Ω,
CK
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Current dissipation
ICC
—
15
30
mA
Differential linearity error
ED
– 0.5
—
0.5
LSB
DVDD = 5.0V AVDD = 5.0V
Linearity error
EL
– 1.0
—
1.0
LSB
RREF = 6.8kΩ RL = 470Ω
FS
1.29
1.44
1.58
V
FSCR
0
0.5
5.0
%
TD
—
30
—
ns
CL = 15pF
TSET
—
40
—
ns
CL = 15pF
Full-scale voltage
RGB output voltage ratio
Output delay time
Settling time
2
FCK = 15MHz
Multimedia ICs
BU3616K
•Pin descriptions
Function
Pin No.
I/O
Pin name
1
—
Iref
2
—
AGND 1
3
I
R7
RED data input (bit 7, MSB)
4
I
R6
RED data input (bit 6)
5
I
R5
RED data input (bit 5)
6
—
DGND1
7
—
DVDD1
Digital power supply 1
8
I
R4
RED data input (bit 4)
Output current adjustment resistor connection, Vref output
Analog ground 1
Digital ground 1
9
I
R3
RED data input (bit 3)
10
I
R2
RED data input (bit 2)
11
I
R1
RED data input (bit 1)
12
I
R0
RED data input (bit 0, LSB)
13
I
G7
GREEN data input (bit 7, MSB)
14
I
G6
GREEN data input (bit 6)
15
I
G5
GREEN data input (bit 5)
16
I
G4
GREEN data input (bit 4)
17
I
G3
GREEN data input (bit 3)
18
I
G2
GREEN data input (bit 2)
19
I
G1
GREEN data input (bit 1)
20
I
G0
GREEN data input (bit 0, LSB)
21
I
B7
BLUE data input (bit 7, MSB)
22
I
B6
BLUE data input (bit 6)
23
I
B5
BLUE data input (bit 5)
24
I
B4
BLUE data input (bit 4)
25
I
B3
BLUE data input (bit 3)
26
I
B2
BLUE data input (bit 2)
27
—
DVDD2
Digital power supply 2
28
—
DGND2
29
I
B1
BLUE data input (bit 1)
30
I
B0
BLUE data input (bit 0, LSB)
31
I
CLK
32
—
AVDD2
33
O
Vref
34
—
AGNDB
Analog ground B
35
—
AVDDB
Analog power supply B
36
O
OUTB
37
—
N.C.
Digital ground 2
System lock
Analog power supply 2
Attached capacitance-adding pin (C = 0.1 µF)
BLUE output
—
3
Multimedia ICs
BU3616K
Pin No.
I/O
Pin name
Function
38
—
AGNDG
Analog ground G
39
—
AVDDG
Analog power supply G
40
O
OUTG
41
—
N.C.
42
—
AGNDR
Analog ground R
43
—
AVDDR
Analog power supply R
44
O
OUTR
GREEN output
—
RED output
•Input / output circuits
Pin No.
Pin name
3~5
8 ~ 26
29 ~ 31
R0 ~ R7, G0 ~ G7
B0 ~ B7, CLK
36, 40, 44
OUTR, OUTG
OUTB
Equivalent circuit
33
1, 33
Iref, Vref
1
4
Multimedia ICs
BU3616K
•Application example
RREF
RED
INPUT
11
GREEN
INPUT
10
9
8
7
6
5
4
3
2
1
12
44
13
43
Vref
14
RED
OUTPUT
RL
15
16
18
39
CURRENT
CELL
LATCH
20
40
38
CURRENT
CELL
36
21
35
22
34
23
24
25
26
GREEN
OUTPUT
RL
37
DECODER
19
CURRENT
CELL
LATCH
DECODER
17
41
LATCH
DECODER
42
27
28
29
BLUE
INPUT
30
31
32
BLUE
OUTPUT
RL
33
0.1µF
CLK
Fig.1
•
External dimensions (Units: mm)
22
34
44
12
2.15 ± 0.1
0.05
1
0.8
11
0.35 ± 0.1
1.2
10.0 ± 0.2
14.0 ± 0.3
14.0 ± 0.3
10.0 ± 0.2
33
23
0.15 ± 0.1
0.15
QFP44
5
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0
