ADCS9888CVH-140 NSC [National Semiconductor], ADCS9888CVH-140 Datasheet - Page 7

• Manufacturer Part Number: ADCS9888CVH-140
• Description: 205/170/140 MSPS Video Analog Front End
• Manufacturer: NSC [National Semiconductor]

Pin Descriptions
Power Supply
1, 6, 7, 10, 14, 18,
21, 25, 26, 34, 37
56, 69, 79, 89, 98,
102, 112, 122
47, 48, 52
3, 4, 11, 15, 19, 22,
27, 28, 35, 36, 40,
41, 46, 49, 51, 55,
65-68, 78, 88,
99-101, 111, 121,
128
39, 39
Pin
V
V
PV
GND
NC
D
DD
D
Label
(Continued)
Power
Supply
Power
Supply
Power
Supply
Ground
NC
Type
Main power supply for analog and digital circuitry inside the IC. The data
outputs and PLL are powered from separate buses for additional noise
isolation.
Power supply for digital data outputs. This voltage can be operated at
voltages below the Main Power Supply, down to 2.5V, to provide
convenient interfaces to lower voltage circuitry.
Phase Locked Loop Power Supply. This input should be well filtered,
isolated, and decoupled, to provide a very stable, low noise, voltage
source for the PLL and VCO circuitry in the ADCS9888.
Ground Return. Ground return for all circuitry on the chip. For best
performance, the printed circuit board should be designed using a single
solid ground plane. Other ICs should be placed to minimize the effects of
noisy digital ground returns interfering with the ADCS9888 operation.
To ensure compliance with designs using the AD9888, these pins are not
connected to the IC die. They may be physically connected to either V
PV
D
with no effect on operation, performance, or reliability.
7
Description
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