Intersil Corporation HI1177 Datasheet
HI1177
Data Sheet January 1999 File Number 4114.2
8-Bit, 40MSPS, 2-Channel D/A Converter
The HI1177 is a dual 8-bit CMOS digital-to-analog converter.
It has input/output equivalent to 2 channels of Y and C for
video use or I and Q for modulators.
The HI1177 is available in the industrial temperature range
and is supplied in a 32 lead plastic metric quad flatpack
(MQFP) package.
Ordering Information
PART
NUMBER
HI1177JCQ -40 to 85 32 Ld MQFP Q32.7x7-S
TEMP.
RANGE (oC) PACKAGE PKG. NO.
Pinout
HI1177
(MQFP)
TOP VIEW
DD
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
DD
G
V
DV
32 31 30 29 28 27 26 25
1
2
3
4
5
6
7
8
AV
YO
YO
CO
CO
161514131211109
24
23
22
21
20
19
18
17
REF
V
I
REF
AV
V
B
DV
CCK
YCK
CE
BLK
SS
SS
Features
• Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-Bit
• Maximum Conversion Speed. . . . . . . . . . . . . . . . . 40MHz
• YC 2-Channel Input/Output
• Differential Linearity Error. . . . . . . . . . . . . . . . . ± 0.3 LSB
• Low Power Consumption . . . . . . . . . . . . . . . . . . . .160mW
(200Ω Load for 2V
P-P
Output)
• Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . +5V Single
• Power-Down Mode
• Low Glitch Noise
• Direct Replacment for Sony CXD1177
Applications
• I/Q Modulation
• YC Video
• Digital TV
• Wireless Transmitters
C0
C1
C2
C3
C7
C6
C5
C4
5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
| Copyright © Intersil Corporation 1999
Functional Block Diagram
HI1177
(LSB) Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
(LSB) C0
C1
C2
C3
C4
C5
C6
C7
BLK
1
2
3
4
DECODER
5
6
7
DECODER
8
9
10
11
DECODER
12
13
14
15
DECODER
16
17
LATCHES
LATCHES
2 LSBs
CURRENT
CELLS
6 MSBs
CURRENT
CELLS
CLOCK
GENERATOR
2 LSBs
CURRENT
CELLS
6 MSBs
CURRENT
CELLS
CLOCK
GENERATOR
CURRENT CELLS
(FOR FULL SCALE)
-
+
DV
32
DD
31
AV
DD
28
Y0
29
Y0
19
YCK
23
AV
SS
21
DV
SS
C0
26
27
C0
20
CCK
30
V
G
25
V
REF
24
I
REF
18
CE
BIAS VOLTAGE
GENERATOR
22
V
B
Pin Descriptions
NUMBER SYMBOL EQUIVALENT CIRCUIT DESCRIPTION
1 to 8 Y0 to Y7 Digital Input.
9 to 16 C0 to C7
1
16
17 BLK Blanking pin. No signal at “H” (Output 0V).
17
DV
DV
DV
DV
DD
SS
DD
SS
Output condition at “L”.
6
HI1177
Pin Descriptions (Continued)
NUMBER SYMBOL EQUIVALENT CIRCUIT DESCRIPTION
22 V
B
DV
DD
22
DV
19 YCK Clock pin. Moreover all input pins are
20 CLK
19
20
21 DV
23 AV
SS
SS
18 CE Chip enable pin. No signal (Output 0V) at “H”
18
DV
DV
DV
SS
DD
SS
DD
DV
DD
+
-
Connect a capacitor of about 0.1µF.
TTL-CMOS compatible.
Digital GND.
Analog GND.
and minimizes power consumption.
DV
SS
24 I
25 V
30 V
31 AV
27 CO Current output pin. Voltage output can be ob-
REF
REF
G
DD
AV
DD
AV
DD
+
24
AV
DD
-
AV
25
AV
SS
AV
SS
30
DD
AV
AV
DD
SS
29 YO
26 CO Inverted current output pin. Normally dropped
28 YO
27
29
AV
SS
AV
DD
26
28
Connect a resistance 16 times “16R” that of
output resistance value “R”.
Set full scale output value.
Connect a capacitor of about 0.1µF.
Analog VDD.
tained by connecting a resistance.
to analog GND.
32 DV
DD
AV
SS
Digital VDD.
7
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