AD6620SSLASHPCB datasheet(12/44 Pages) AD

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AD6620

–12–

REV. A

Name

Type

Description

VDD

3.3 V Supply

VSS

Ground

CLK

Input Clock

RESET

Active Low Reset Pin

IN[15:0]

Input Data (Mantissa)

EXP[2:0]

Input Data (Exponent)

A/B

Channel (A/B) Select

SYNC_NCO

I/O

Sync Signal for NCO

SYNC_CIC

I/O

Sync Signal for CIC Stages

SYNC_RCF

I/O

Sync Signal for RCF

MODE

Sets Microport Mode: Mode 1, (MODE = 1), Mode 0, (MODE = 0)

A[2:0]

Microprocessor Interface Address

D[7.0]

I/O/T

Microprocessor Interface Data

DS or RD

Mode 1: Data Strobe Line, Mode 0: Read Signal

R/W or

Read/Write Line (Write Signal)

Chip Select, Enables the Chip for

µP Access

DTACK or RDY

Acknowledgment of a Completed Transaction (Signals when

µP Port Is Ready for an Access)

PAR/SER

Parallel/Serial Control Select (PAR = 1, SER = 0)

DVOUT

Data Valid Pin for the Parallel Output Data

A/BOUT

Signals to Which Channel the Output Belongs to (A = 1, B = 0)

I/QOUT

Signals Whether I or Q Data Is Present (I = 1, Q = 0)

TRST

Test Reset Pin

TCK

Test Clock Input

TMS

Test Mode Select Input

TDI

Test Data Input

TDO

Test Data Output

Pin Types: I = Input, O = Output, P = Power Supply, G = Ground, T = Three-state.

SHARED PINS

Parallel Outputs (PAR/SER = 1 at RESET)

Serial Port (PAR/SER = 0 at RESET)

Name

Type

Description

Name

Type

Description

OUT15

Parallel Output Data

SCLK

I/O

Serial Clock Input (SBM =0)

Serial Clock Output (SBM = 1)

OUT14

Parallel Output Data

SDI

Serial Data Input

OUT13

Parallel Output Data

SDO

O/T

Serial Data Output

OUT12

Parallel Output Data

SDFS

I/O

Serial Data Frame Sync Input (SBM = 0)

Serial Data Frame Sync Output (SBM = 1)

OUT11

Parallel Output Data

SDFE

Serial Data Frame End

OUT10

Parallel Output Data

SBM

Serial Bus Master (Master = 1, Cascade = 0)

OUT9

Parallel Output Data

WL1

Serial Port Word Length, Bit 1

OUT8

Parallel Output Data

WL0

Serial Port Word Length, Bit 0

OUT7

Parallel Output Data

Append Data

OUT[6:4]

Parallel Output Data

Unused, Do Not Connect

OUT3

Parallel Output Data

SDIV3

SCLK Divide Value, Bit 3

OUT2

Parallel Output Data

SDIV2

SCLK Divide Value, Bit 2

OUT1

Parallel Output Data

SDIV1

SCLK Divide Value, Bit 1

OUT0

Parallel Output Data (LSB)

SDIV0

SCLK Divide Value, Bit 0

Pin Types: I = Input, O = Output, P = Power Supply, G = Ground, T = Three-state.

PIN FUNCTION DESCRIPTIONS

AD6620S/PCB 数据表(PDF) 12 Page - Analog Devices

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AD6620S/PCB 数据表(PDF) 12 Page - Analog Devices

AD6620S/PCB 数据表(HTML) 12 Page - Analog Devices

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