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HI1178 Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer HI1178
Beschreibung 3-Channel D/A Converter
Hersteller Intersil Corporation
Logo Intersil Corporation Logo 




Gesamt 11 Seiten
HI1178 Datasheet, Funktion
®
PbD-Faretae
and RoHS
Sheet
Compliant
October 25, 2005
HI1178
FN4115.4
Triple 8-Bit, 40MSPS, RGB, 3-Channel D/A
Converter
The HI1178 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 5.0V power supply and pixel clock
input is all that is required to make the device operational. A
bias voltage generator is internal. Each channel clock input
can be controlled individually, or connected together as one.
The HI1178 also has BLANK video control signal.
Ordering Information
TEMP. RANGE
PART NUMBER
(oC)
PACKAGE
PKG. NO.
HI1178JCQ
-40 to 85 48 Ld MQFP Q48.12x12-S
Pinout
HI1178
(MQFP)
TOP VIEW
www.DataSheet4U.com
48 47 46 45 44 43 42 41 40 39 38 37
R0 1
36 RO
R1 2
R2 3
35 IREF
34 VREF
R3 4
33 AVSS
R4 5
R5 6
R6 7
32 VB
31 DVSS
30 DVSS
R7 8
G0 9
29 BCK
28 GCK
G1 10
27 RCK
G2 11
26 CE
G3 12
25 BLK
13 14 15 16 17 18 19 20 21 22 23 24
Features
• Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . Triple 8-Bit
• Maximum Conversion Speed . . . . . . . . . . . . . . . . . 40MHz
• RGB 3-Channel Input/Output
• Differential Linearity Error . . . . . . . . . . . . . . . . . +0.3 LSB
• Low Power Consumption . . . . . . . . . . . . . . . . . . . .240mW
(200Load for 2VP-P Output)
• Single Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . .+5V
• Low Glitch Noise
• Direct Replacement for Sony CXD1178
Applications
• Digital TV
• Graphics Display
• High Resolution Color Graphics
• Video Reconstruction
• Instrumentation
• Image Processing
• I/Q Modulation
Related Literature
• Technical Brief TB363 “Guidelines for Handling and
Processing Moisture Sensitive Surface Mount Devices
(SMDs)”
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2000, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.






HI1178 Datasheet, Funktion
HI1178
I/O Chart (When Full Scale Output Voltage at 2.00V)
Timing Diagram
MSB
11
10
00
INPUT CODE
1111
0000
0000
tPW1
tPW0
LSB
11
00
00
OUTPUT CODE
2.0V
1.0V
0V
CLK
DATA
tS tS tS
tHL tHL tHL
tPD
100%
D/AOUT
Test Circuits
tPD
FIGURE 1.
tPD
50%
0%
CLK
40MHz
SQUARE
WAVE
8-BIT
COUNTER
WITH
LATCH
R0 ~ R7
1~8
G0 ~ G7
9 ~ 18
B0 ~ B7
17 ~ 24
DVSS
25 BLK
26 CE
32 VB
0.1µ
27 RCK
28 GCK
HI1178
R0 37
G0 39
B0 41
200
AVSS
200
AVSS
200
AVSS
VG 42
VREF 34
0.1µ
OSCILLOSCOPE
AVDD
1K
29 BCK
IREF 35
3.3K
AVSS
FIGURE 2. MAXIMUM CONVERSION RATE TEST CIRCUIT
6

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