ICS1531 Datasheet, PDF (16/76 Pages) Integrated Circuit Systems – Triple 8-bit MSPS A/D Converters with Line-Locked Clock Generator

ICS1531 Data Sheet - Preliminary
Chapter 3 Pin Diagram and Listings
3.2.3.6 Ground Pins
Table 3-8. Ground Pins
Pin Name
VSS
VSSA
VSSAADC
VSSD
VSSDADC
VSSMCLK
VSSPCLK
VSSQ
VSSQADC
VSSSUB
VSS(TEST)
Pin Description
Ground for (Analog Inputs for Digital Pixel PLL Circuitry).
• These pins are used to ground digital portions of the pixel PLL circuitry that receive analog inputs.
• The VSSD pin must also be connected to these pins.
Ground for Analog (Pixel PLL Circuitry).
This pin is used to ground the analog portions of the pixel PLL circuitry.
Ground for Analog ADC (Circuitry).
These pins are used to ground the analog portions of the ADC.
Ground for Digital (Pixel PLL and Circuitry for Industry-Standard 2-Wire Serial Interface).
This pin is used to ground the digital portions of the pixel PLL circuitry and the circuitry for an
industry-standard 2-wire serial interface.
Ground for Digital ADC (Circuitry).
This pin is used to ground the digital portions of the ADC.
Ground for Memory Clock (Circuitry).
This pin is used to ground the circuitry for the memory clock PPL (that is, MCLK).
Ground for Panel Clock (Circuitry).
This pin is used to ground the circuitry for the panel clock PLL (that is, PNLCLK).
Ground for Output Drivers.
This pin is used to ground output drivers for the pixel PLL circuitry.
Ground for Output Drivers for ADC.
These pins are used to ground the pixel data output drivers for the analog-to-digital converter.
Ground for Substrate.
These pins are used to provide ground for the chip substrate.
Ground (Normal Mode) or Test Mode.
• Normal Mode.
– Typically, this pin must be connected to ground (the Normal mode).
– When the ICS1531 is in Normal mode, the Calibration registers 38h to 3Ch can be enabled by
using Reg 37:3. (See Section 6.5.39, “Register 37h: PSEL”.)
ICS1531
VSS(TEST)
Normal Mode
In Normal mode, use Reg 37:3 to
enable Calibration Regs 38h to 3Ch.
VSSXTL
• Test Mode.
For the VSS(TEST) pin’s Test-mode function, see Table 3-4.
Ground for Crystal Oscillator.
This pin is used to ground the internal crystal oscillator circuitry.
ICS1531 Rev N 12/1/99
Copyright © 1999, Integrated Circuit Systems, Inc.
All rights reserved.
16
December, 1999