AD6634BCSLASHPCB datasheet(18/52 Pages) AD

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AD6634

PIN FUNCTION DESCRIPTIONS

Mnemonic

Type

Function

POWER SUPPLY

VDD

2.5 V Supply

VDDIO

3.3 V IO Supply

GND

Ground

INPUTS

INA[13:0]

IA Input Data (Mantissa)

EXPA[2:0]

IA Input Data (Exponent)

IENA

Input Enable—Input A

INB[13:0]

IB Input Data (Mantissa)

EXPB[2:0]

IB Input Data (Exponent)

IENB

Input Enable—Input B

RESET

Active Low Reset Pin

CLK

Input Clock

PCLK

I/O

Link/Parallel Port Clock

LACLKIN

Link Port A Data Ready

LBCLKIN

Link Port B Data Ready

SYNCA

All Sync pins go to all four output channels.

SYNCB

All Sync pins go to all four output channels.

SYNCC

All Sync pins go to all four output channels.

SYNCD

All Sync pins go to all four output channels.

CS1

Chip Select

CHIP_ID[3:0]

Chip ID Selector

CONTROL

PAACK

Parallel Port A Acknowledge

PAREQ

Parallel Port A Request

PBACK

Parallel Port B Acknowledge

PBREQ

Parallel Port B Request

MICROPORT CONTROL

D[7:0]

I/O/T

Bidirectional Microport Data

A[2:0]

Microport Address Bus

DS(RD)I

Active Low Data Strobe (Active Low Read)

DTACK(RDY)2

O/T

Active Low Data Acknowledge (Microport Status Bit)

R/W(

WR)I

Read Write (Active Low Write)

MODE

Intel or Motorola Mode Select

SERIAL PORT CONTROL

SDI

Serial Port Control Data Input

SCLK

Serial Port Control Clock

OUTPUTS

LIA–A

Level Indicator—Input A, Interleaved–Data A

LIA–B

Level Indicator—Input A, Interleaved–Data B

LIB–B

Level Indicator—Input B, Interleaved–Data B

LIB–A

Level Indicator—Input B, Interleaved–Data A

LACLKOUT

Link Port A Clock Output

LBCLKOUT

Link Port B Clock Output

LA[7:0]

Link Port A Output Data

LB[7:0]

Link Port B Output Data

PA[15:0]

Parallel Output Data Port A

PB[15:0]

Parallel Output Data Port B

PACH[1:0]

Parallel Output Port A Channel Indicator

PBCH[1:0]

Parallel Output Port B Channel Indicator

PAIQ

Parallel Port A I/Q Data Indicator

PBIQ

Parallel Port B I/Q Data Indicator

JTAG AND BIST

TRST2

Test Reset Pin

TCLK

Test Clock Input

TMS

Test Mode Select Input

TDO

O/T

Test Data Output

TDI

Test Data Input

NOTES

1Pins with a pull-down resistor of nominal 70 k

Ω.

2Pins with a pull-up resistor of nominal 70 k

Ω.

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