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CS5530A 데이터시트(PDF) 36 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
부품명 CS5530A
상세설명  Geode CS5530A I/O Companion Multi-Function South Bridge
PDF  259 Pages
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제조업체  NSC [National Semiconductor (TI)]
홈페이지  http://www.national.com
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CS5530A 데이터시트(HTML) 36 Page - National Semiconductor (TI)

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36
Revision 1.1
Signal Definitions (Continued)
IREF
(Video DAC)
R3
I
Analog
VDAC Current Reference Input
Connect a 680 ohm resistor between this pin and AVSS (analog ground for
Video DAC).
EXTVREFIN
(Video DAC)
T2
I
Analog
External Voltage Reference Pin
Connect this pin to a 1.235V voltage reference.
AVDD1 (DAC)
U1
I
Analog
Analog Power for Video DAC
These pins provide power to the analog portions of the Video DAC.
A 47 µF capacitor should be connected between the DAC analog power and
DAC analog ground. Analog power is AVDD1 (pin U1) and AVDD3 (pin N4).
Analog ground is AVSS1 (pin R2) and AVSS5 (pin P2).
AVDD2 (VREF)
T3
AVDD3 (DAC)
N4
AVSS1 (DAC)
R2
I
Analog
Analog Ground for Video DAC
These pins provide the ground plane connections to the analog portions of
the Video DAC.
A 47 µF capacitor should be connected between the DAC analog power and
DAC analog ground. Analog power is AVDD1 (pin U1) and AVDD3 (pin N4).
Analog ground is AVSS1 (pin R2) and AVSS5 (pin P2).
AVSS2 (ICAP)
R4
AVSS3 (VREF)
T4
AVSS4 (ICAP)
P1
AVSS5 (DAC)
P2
IOUTR
(Video DAC)
P3
O
Analog
Red DAC Output
Red analog output.
IOUTG
(Video DAC)
P4
O
Analog
Green DAC Output
Green analog output.
IOUTB
(Video DAC)
R1
O
Analog
Blue DAC Output
Blue analog output.
Display TFT/TV
FP_DATA17/
MASTER#
F3
O
Limited ISA Mode: Flat Panel Data Port Line 17
Refer to FP_DATA[15:0] signal description.
I
ISA Master Mode: Master
Refer to Section 2.2.5 "ISA Bus Interface" on page 28 for this signal’s defini-
tion.
FP_DATA16/
SA_OE#
H3
O
Limited ISA Mode: Flat Panel Data Port Line 16
Refer to FP_DATA[15:0] signal description.
O
ISA Master Mode: System Address Transceiver Output Enable
Refer to Section 2.2.5 "ISA Bus Interface" on page 28 for this signal’s defini-
tion.
2.2.11 Display Interface (Continued)
Signal Name
Pin
No.
Pin
Type
Description



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