ICS1523M IDT, Integrated Device Technology Inc, ICS1523M Datasheet

no-image

ICS1523M

Manufacturer Part Number
ICS1523M
Description
IC VIDEO CLK SYNTHESIZER 24-SOIC
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock/Frequency Synthesizer (IF), Fanout Distribution, Frequency Generatorr
Datasheet

Specifications of ICS1523M

Pll
Yes
Input
Clock
Output
LVPECL, SSTL-3
Number Of Circuits
1
Ratio - Input:output
1:3
Differential - Input:output
No/Yes
Frequency - Max
250MHz
Divider/multiplier
Yes/No
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
24-SOIC (7.5mm Width)
Frequency-max
250MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
1523M

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ICS1523M
Manufacturer:
ICS
Quantity:
5 607
Part Number:
ICS1523M
Manufacturer:
ICS
Quantity:
20 000
Part Number:
ICS1523MLF
Manufacturer:
INTEL
Quantity:
25
Part Number:
ICS1523MLF
Manufacturer:
ICS
Quantity:
20 000
Part Number:
ICS1523MLFT
Manufacturer:
ICS
Quantity:
1 240
Part Number:
ICS1523MLFT
Manufacturer:
ICS
Quantity:
20 000
Part Number:
ICS1523MT
Manufacturer:
ICS
Quantity:
9
Part Number:
ICS1523MT
Manufacturer:
ICS
Quantity:
20 000
General Description
The ICS1523 is a low-cost, high-performance
frequency generator. It is well suited to general
purpose phase controlled clock synthesis as well as
line-locked and genlocked high-resolution video
applications. Using IDT’s advanced low-voltage
CMOS mixed-mode technology, the ICS1523 is an
effective phase controlled clock synthesizer and also
supports video projectors and displays at resolutions
from VGA to beyond UXGA.
The ICS1523 offers clock outputs in both differential
(to 250 MHz) and single-ended (to 150 MHz) formats.
Dynamic Phase Adjust (DPA) allows I
the output clock’s phase relative to the input sync
signal. A second, half speed set of outputs that can be
separately enabled allows such applications as
clocking analog-to-digital converters. The FUNC pin
provides either the regenerated input from the
phase-locked loop (PLL) divider chain output, or the
input HSYNC after being sharpened by the Schmitt
trigger. Both signals are then delayed by the DPA.
The advanced PLL uses either its internal
programmable feedback divider or an external divider.
Either the internal or external loop filters is software
selectable. The COAST input pin disables the PLL’s
charge pump, causing the device to idle at the current
speed for short periods of time, such as vertical
blanking intervals.
The device is programmed by a standard I
serial interface and is available in a 24-pin, wide
small-outline integrated circuit (SOIC) package.
ICS1523 Functional Diagram
MDS ICS1523 ZC
HSYNC
I C I/F
2
OSC
External Loop Filter (optional)
Integrated Device Technology, Inc.
Video Clock Synthesizer with I
2
CLK
CLK/2
FUNC
C™ control of
2
C-bus

1
Tech Support: www.idt.com/go/clockhelp
Features
• Low Jitter
• Wide input frequency range
• PECL differential outputs
• SSTL_3 Single-ended clock outputs
• Dynamic Phase Adjust (DPA) for all outputs
• Double-buffered control registers
• External or internal loop filter selection
• COAST input can disable charge pump
• 3.3 VDD
• 5 volt Tolerant Inputs
• Industry Standard I
• PLL Lock detection via I
• 24-pin 300-mil SOIC package
Applications
• Frequency synthesis
• LCD monitors, video projectors and plasma displays
• Genlocking multiple video subsystems
Pin Configuration
• 15.734 kHz to 100 MHz
• Up to 250 MHz
• Up to 150 MHz
• I
• Full clock cycle down to 1/64 of a clock
2
C controlled phase adjustment
2
C Programmable Delay
24-pin SOIC
2
C-bus programming interface
2
C or LOCK/REF output pin
ICS1523
Revision 020811

Related parts for ICS1523M

ICS1523M Summary of contents

Page 1

Video Clock Synthesizer with I General Description The ICS1523 is a low-cost, high-performance frequency generator well suited to general purpose phase controlled clock synthesis as well as line-locked and genlocked high-resolution video applications. Using IDT’s advanced low-voltage CMOS ...

Page 2

Section 1 Operational Description 1.1 Naming Conventions 0xY = Register Index Y(hex) 0xY:Z = Register Index Y(hex), bit Z 0xY:Z~Q = Register Index Y(hex), bit 1.2 Overview The ICS1523 is a general purpose, high-performance, I2C programmable clock ...

Page 3

MHz even if a low output frequency is required.The output of the VCOD is the full speed output frequency seen on the CLK pins. 1.7 Dynamic Phase Adjust (DPA) The VCOD output clock is then sent through the DPA for ...

Page 4

Section 2 Pin Descriptions PIN PIN NAME TYPE NO. 1 VDDD POWER 2 VSSD POWER 3 SDA IN/OUT 4 SCL IN 5 COAST IN 6 EXTFB IN 7 HSYNC IN 8 EXTFIL IN 9 XFILRET IN 10 VDDA POWER 11 ...

Page 5

Section 3 Functional Block Diagram MDS ICS1523 ZC Integrated Device Technology, Inc. Video Clock Synthesizer with I 5 Tech Support: www.idt.com/go/clockhelp  ICS1523 2 C Programmable Delay Revision 020811 ...

Page 6

Section 4 Register Set Summary Reg. Index Name Access Bit Name 0x0 Input CPen Control CP_Pol Ref_Pol Fbk_Pol Fbk_Sel Func_Sel EnPLS EnRef 0x1 Loop ICP0-2 Control Reserved VCOD0-1 Reserved 0x2 FdBk Div 0 R ...

Page 7

Register Set Summary (continued) Reg. Name Access Bit Name Index 0x6 Output OE_Pck Enables OE_Tck OE_P2 OE_T2 OE_F Ck2_Inv Out_Scl 0x7 Osc_Div Osc_Div 0-6 In-Sel 0x8 Reset Write DPA PLL 0x10 Chip Ver ...

Page 8

Section 5 Register Set Details Register Conventions 0xY:Z = Register Index Y(hex), bit Z 0xY:Z~Q = Register Index Y(hex), bit Note 3- COAST - Charge Pump Enable/Disable CP_Pol CPen 0x0:1~0 Charge Pump Enabled If... 0 0 COAST ...

Page 9

The DPA Resolution Select register (0x5:0~1) is double-buffered. Working registers are loaded only after a DPA software reset (0x8=xA) For more details, See Figure 11.2 Section 6 OSC Divider and REF The ICS1523 accepts a single-ended clock on pin 12, ...

Page 10

Section 9 Output Termination 9.1 PECL Description The ICS1523 PECL outputs consist of open-drain, current-source, pull-down transistors. An external resistor network permits complete flexibility of logic levels and source impedance. This section describes the design procedure to select the resistor ...

Page 11

PECL Example Determine V and V for target device, as follows OL OH (see also Figure 9-1): 1. Choose (VCC * VOH RA) / ...

Page 12

Section 11 Programming 2 11.1 Industry-Standard I C Serial Bus: Data Format Figure 11-1 ICS1523 Data Format for I Write Procedure for Single Re gis ter MSB LSB Device address ...

Page 13

Programming Flow for Modifying PLL and DPA Settings (Coast disabled, Positive edge of HSYNC, Internal Feedback, FUNC = regenerated HSYNC, PLL lock status to LOCK (STATUS) pin Decrement Charge Pump Current Reg0x1:2~0 MDS ICS1523 ZC Integrated Device Technology, Inc. ...

Page 14

Section 12 Timing Diagrams Figure 12-1 DPA Operation HSYNC DPA Offset when DPA_OS [5- DPA Offset when DPA_OS [5- DPA Offset when DPA_OS [5- DPA Offset when DPA_OS [5-0] = Max ...

Page 15

Timing for 0x0:2=0 Figure 12-2 0x0:2=0 Timing Diagram 0x0:2=0 Timing Values Table 12-2 Symbol Parameter T2 HSYNC High to FUNC High (DPA Offset = 0) T3 HSYNC High to PECL CLK+ High (DPA Offset = 0) T4 PECL Clock ...

Page 16

Timing for 0x0:2=1 Figure 12-3 0x0:2=1 Timing Diagram 0x0:2=1 Timing Values Table 12-3 Symbol Parameter T2 HSYNC Low to FUNC High Delay T3 HSYNC Low to PECL CLK+ High Delay (DPA Offset = 0) T4 PECL Clock to SSTL_3 ...

Page 17

HSYNC to REF Timing Figure 12-4 HSYNC to REF Timing Diagram Reg0 Reg0 Table 12-4 HSYNC to REF Timing Diagram Symbol Parameter T HSYNC Low to REF Delay 0 T HSYNC High to REF Delay ...

Page 18

Section 13 AC/DC Operating Conditions 13.1 Absolute Maximum Ratings Table 13-1 lists absolute maximum ratings for the ICS1523. Stresses above these ratings can cause permanent damage to the device. These ratings, which are standard values for ICS commercially rated parts, ...

Page 19

Parameter Analog Input (HSYNC) Input High Voltage Input Low Voltage Digital Inputs (SDA, SCL, EXTFB, OSC, I Input High Voltage Input Low Voltage Input Hysteresis POR Threshold SDA Digital Output SDA Output Low Voltage SDA Output High Voltage PECL Outputs ...

Page 20

Table 13-5 Thermal Characteristics Parameter Thermal Resistance Junction to Ambient Thermal Resistance Junction to Case MDS ICS1523 ZC Integrated Device Technology, Inc. Video Clock Synthesizer with I Symbol Conditions Min. θ Still Air JA θ 1 m/s air flow JA ...

Page 21

... Part / Order Number 1523MLF ICS1523MLF 1523MLFT ICS1523MLF Note: “LF” denotes Pb (lead) free package. While the information presented herein has been checked for both accuracy and reliability, Integrated Device Technology, Incorporated (IDT) assumes no responsibility for either its use or for infringement of any patents or other rights of third parties, which would result from its use ...

Related keywords