Panasonic MN6557A, MN6557AS Datasheet
A/D, D/C Converters for Image Signal Processing
MN6557A, MN6557AS
Low-Power-Consumption CMOS 10-Bit D/A Converters for Image Processing
Overview
The MN6557A and MN6557AS are CMOS 10-bit D/A
converters with a maximum conversion rate of 30 MSPS.
High precision has been achieved by the combined use
of a matrix cell system and weighted current system. They
also feature low power consumption owing to the use of
a CMOS process, and operate on a single power supply
of 5V, and have a TTL input level.
These devices are suitable for digitalization of image
processing in video, TV, and similar applications.
Features
Maximum conversion rate: 30 MSPS (min.)
Linearity error: ±0.5 LSB (typ.)
Differential linearity error: ±0.3 LSB (typ.)
Power supply voltage: 5.0 ±0.5 V
Power consumption: 125 mW (typ.)
Full-scale current: 13 mA (typ.)
Applications
Digital TV
Digital video
Digital signal processing equipment
Pin Assignment
MN6557A DIP022-P-0400
MN6557AS SOP022-P-0375
DV
AV
AV
I
REF
V
REF
COMP
VIB
I
OUT
AV
AV
DV
DD
DD
DD
1
2
3
4
5
6
7
8
9
SS
10
SS
11
SS
( TOP VIEW )
CLK
22
D1
21
D2
20
D3
19
D4
18
D5
17
D6
16
D7
15
D8
14
D9
13
D10
12
1
MN6557A, MN6557AS A/D, D/C Converters for Image Signal Processing
Block Diagram
R
REF
(LSB) D10
(MSB)D1
+
–
COMP
V
D9
D8
D7
D6
D5
D4
D3
D2
CLK
REF
I
REF
12
13
14
15
16
17
18
19
20
21
22
X-Decoder
Latch
Latch
Matrix Cell
(127=8 × 16–1)
Latch
1/2 1/4 1/8
R
I
8
OUT
OUT
Y-Decoder
6
5
+
4
–
Current
Source
7
VIB
2
3
DDAVDDDVDD
AV
1
9
10
AVSSAV
11
SS
SS
DV
2
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