AD8389ACPZ Analog Devices Inc, AD8389ACPZ Datasheet

IC TRPL DELAY LOCK LOOP 48-LFCSP

AD8389ACPZ

Manufacturer Part Number
AD8389ACPZ
Description
IC TRPL DELAY LOCK LOOP 48-LFCSP
Manufacturer
Analog Devices Inc
Type
Delayed, Locked Loopr
Datasheet

Specifications of AD8389ACPZ

Frequency
85MHz
Voltage - Supply
3 V ~ 3.6 V
Current - Supply
11mA
Operating Temperature
0°C ~ 85°C
Package / Case
48-LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Count
-
PRODUCT FEATURES
High speed
Up to 85 MHz clock rate
Triple (R, G, B) output
Matched delay lines
Low power dissipation: 40 mW
Reference to rising or falling edge of MONITI input
Selectable loop delay
Available in 48-lead 7 mm × 7 mm LFCSP
APPLICATIONS
LCD microdisplay horizontal timing
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
COMPEDGE
ENBX1I
ENBX2I
ENBX3I
ENBX4I
SLOW
CLXI
CLK
DXI
INTERNAL
TIMING
SELECTABLE
6
/
DELAY
FUNCTIONAL BLOCK DIAGRAM
AVDD(4) AVSS(4)
DETECTOR
DETECTOR
DETECTOR
Figure 1.
PHASE
PHASE
PHASE
DELAY LINES (6-CHANNEL)
DELAY LINES (6-CHANNEL)
DELAY LINES (6-CHANNEL)
MATCHED VARIABLE
MATCHED VARIABLE
MATCHED VARIABLE
DRVDD(2) DRVSS(2)
PRODUCT DESCRIPTION
The AD8389 is a triple 6-channel LCD microdisplay delay-
locked timing loop. As part of a closed-loop system, the AD8389
maintains a constant delay between the common input, DXI,
and each independent feedback reference, MONITxI.
The AD8389 consists of a selectable fixed delay element, a phase
detector, a charge pump, and six matched variable delay lines
per color. The phase detector, charge pump, and master delay
line form a closed loop when connected to a compatible LCD
microdisplay. Five additional delay lines track the master for a
complete set of matched timing signals.
The AD8389 dissipates 40 mW nominal power. The AD8389 is
offered in a 48-lead 7 mm × 7 mm LFCSP package and operates
over the commercial temperature range of 0°C to 85°C.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
CHARGE
CHARGE
CHARGE
Triple, 6-Channel LCD Timing
PUMP
PUMP
PUMP
AD8389
6
6
6
© 2003 Analog Devices, Inc. All rights reserved.
/
/
/
Delay-Locked Loop
VCONTR
MONITRI
DXRO
ENBX1RO
ENBX2RO
ENBX3RO
ENBX4RO
CLXRO
VCONTG
MONITGI
DXGO
ENBX1GO
ENBX2GO
ENBX3GO
ENBX4GO
CLXGO
VCONTB
MONITBI
DXBO
ENBX1BO
ENBX2BO
ENBX3BO
ENBX4BO
CLXBO
www.analog.com
AD8389

Related parts for AD8389ACPZ

AD8389ACPZ Summary of contents

Page 1

PRODUCT FEATURES High speed MHz clock rate Triple ( output Matched delay lines Low power dissipation Reference to rising or falling edge of MONITI input Selectable loop delay Available in 48-lead 7 mm ...

Page 2

AD8389 TABLE OF CONTENTS Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 Exposed Paddle............................................................................. 4 Maximum Power Dissipation ..................................................... 4 Pin Configuration and Function Descriptions............................. 5 REVISION HISTORY Revision 0: Initial Version Timing.................................................................................................6 Operating Principles .........................................................................7 Operation .......................................................................................7 Outline Dimensions ..........................................................................9 Ordering ...

Page 3

SPECIFICATIONS Table 1. @ 25°C, AVDD = DRVDD = 3 Parameter LOGIC INPUTS OUTPUTS TIMING SPECIFICATIONS Operating Frequency CLK, f CLK CLXI, ENBX(1–4)I DXI, ...

Page 4

AD8389 ABSOLUTE MAXIMUM RATINGS 1 Table 2. AD8389 Stress Ratings Parameter Supply Voltages AVDDx – AVSSx DRVDDx – DRVSSx Input Voltages Maximum Digital Input Voltage Minimum Digital Input Voltage Internal Power Dissipation 2 LFCSP Package @ T = 25°C A ...

Page 5

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS MONITRI MONITGI MONITBI VCONTR VCONTG VCONTB CONNECT Table 3. Pin Function Descriptions Mnemonic Function AVDD, DRVDD Power Supply AVSS, DRVSS Ground CLK Clock COMPEDGE Edge Select SLOW Delay Select DXI Reference Input ...

Page 6

AD8389 TIMING Table 4. Timing Specifications Parameter Operating Frequency CLK, f CLK CLXI, ENBX(1–4)I DXI, MONITxI Input Low Pulse Width, t —All Inputs except CLK 1 DXI, MONITxI ENBX(1–4)I, CLXI CLK High Pulse Width—t 2 CLK Low Pulse Width—t 3 ...

Page 7

OPERATING PRINCIPLES MONITRI DX DXI CLX, ENBX(1–4) VCONTR 200pF Figure 6. AD8389 Application in the Red Channel of an LCD Projection System The image quality of an LCD system is dependent on the timing relationship between the control inputs, DX, ...

Page 8

AD8389 The phase detector compares the delayed DX and MONITxI reference inputs and automatically adjusts the variable delay (t maintaining the constant delay (t ) between the active edges and MONITxI. Five matched delay lines maintain the ...

Page 9

... OUTLINE DIMENSIONS PIN 1 INDICATOR 1.00 12° MAX 0.85 0.80 SEATING PLANE ORDERING GUIDE Model Temperature Range 1 AD8389ACPZ 0°C to 85° lead-free. 7.00 BSC SQ 0.60 MAX 37 36 6.75 TOP BSC SQ VIEW 0.50 0. 0.30 0.80 MAX 0.65 TYP 0.05 MAX 0.02 NOM COPLANARITY ...

Page 10

AD8389 NOTES Rev Page ...

Page 11

NOTES Rev Page AD8389 ...

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AD8389 NOTES © 2003 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D04515–0–10/03(0) Rev Page ...

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