Intersil Corporation HI2304 Datasheet
August 1997
Semiconductor
See HI1178
NOT RECOMMENDED FOR NEW DESIGNS
HI2304
Triple 8-Bit, 20 MSPS, RGB,
3-Channel D/A Converter
Features
• Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . .Triple 8-Bit
• Maximum Conversion Speed . . . . . . . . . . . . . . . 20MHz
• RGB 3-Channel Input/Output
• Differential Linearity Error . . . . . . . . . . . . . . . ±0.5 LSB
• Low Power Consumption . . . . . . . . . . . . . . . . . . .50mW
(330Ω Load for 1.2V
P-P
Output)
• Single Power Supply . . . . . . . . . . . . . . . . . . . . . . . +3.3V
• Low Glitch Noise
• Direct Replacement for Sony CXD2304
Applications
• Digital TV
• Graphics Display
• High Resolution Color Graphics
• Video Reconstruction
• Instrumentation
• Image Processing
• I/Q Modulation
Description
The HI2304 is a triple 8-bit, high-speed, CMOS D/A
converter designed for video band use. It has three
separate, 8-bit, pixel inputs, one each for red, green, and
blue video data. A single 3.3V power supply and pixel clock
input can be controlled individually, or connected together
as one. The HI2304 also has BLANK video control signal.
For faster speed and 5.0V operation, refer to the HI1178.
Ordering Information
PART
NUMBER
HI2304JCQ -20 to 75 48 Ld MQFP Q48.7x7-S
TEMP.
RANGE (oC) PACKAGE PKG. NO.
Pinout
R0
R1
R2
R3
R4
R5
R6
R7
G0
G1
G2
G3
DD
DVDDAV
DV
1
2
3
4
5
6
7
8
9
10
11
12
13 14 15 16
G5
G4
G6
DD
G7
HI2304
(MQFP)
TOP VIEW
DD
DD
AV
AVDDAV
B1
B0
VG
B2
B3
B0
B4
B0
B5
G0
G0
B6
R0
373839404142434445464748
36
35
34
33
32
31
30
29
28
27
26
25
2423222120191817
B7
R0
I
REF
V
REF
AV
VB
DV
DV
BCK
GCK
RCK
CE
BLK
SS
SS
SS
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© Harris Corporation 1997
10-1
File Number 4116.1
Functional Block Diagram
HI2304
(LSB) R0
R1
R2
R3
R4
R5
R6
R7
(LSB) G0
G1
G2
G3
G4
G5
G6
G7
(LSB) B0
B1
B2
B3
B4
B5
B6
B7
BLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
DECODER
DECODER
DECODER
DECODER
DECODER
DECODER
LATCHES
LATCHES
LATCHES
2 LSBs
CURRENT
CELLS
6 MSBs
CURRENT
CELLS
CLOCK
GENERATOR
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)
47
DV
DD
48
DV
DD
36
RO
37
RO
RCK
27
43
AV
DD
44
AV
DD
45
AV
DD
AV
46
DD
38
GO
39
GO
28
GCK
33
AV
SS
30
DV
SS
DV
31
SS
40
BO
BO
41
BCK
29
42
VG
34
V
3532I
REF
REF
-
+
CE
26
BIAS VOLTAGE
GENERATOR
Pin Descriptions
PIN NO. SYMBOL EQUIVALENT CIRCUIT DESCRIPTION
1 to 8 R0 to R7 Digital Input.
9 to 16 G0 to G7
17 to 24 B0 to B7
1
TO
25
DV
DV
DD
SS
10-2
VB
HI2304
Pin Descriptions
(Continued)
PIN NO. SYMBOL EQUIVALENT CIRCUIT DESCRIPTION
25 BLK Blanking pin. No signal at “H” (Output 0V)
25
32 VB Connect a capacitor of about 0.1µF.
DV
32
DV
27 RCK Clock Pin.
DD
SS
DV
DV
DV
DD
SS
DD
DV
DD
Output condition at “L”.
+
-
28 GCK
29 BCK
27
28
29
30, 31 DV
33 AV
26
CE
SS
SS
DV
SS
Digital GND.
Analog GND.
Chip Enable Pin. No signal (Output 0V) at “H” and
DV
DD
26
DV
SS
minimizes power consumption.
10-3
HI2304
Pin Descriptions
(Continued)
PIN NO. SYMBOL EQUIVALENT CIRCUIT DESCRIPTION
35 I
34 V
REF
REF
AV
DD
AV
DD
Connect a resistance 16 times “16R” that of output
resistance value “R”.
Set full scale output value.
42 VG Connect a capacitor of about 0.1µF.
35
AV
DD
AV
SS
34
AV
SS
43 to 46 AV
37 RO Current output pin. Voltage output can be obtained by
DD
AV
DD
39 GO
41 BO
36 RO Inverted current output pin. Normally dropped to analog
38 GO
40 BO
37
39
41
AV
SS
AV
DD
+
-
AV
DD
42
AV
SS
Analog VDD.
connecting a resistance.
GND.
47, 48 DV
DD
36
38
40
AV
SS
Digital VDD.
10-4
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