IDTCSPT857CNLGI IDT, Integrated Device Technology Inc, IDTCSPT857CNLGI Datasheet

no-image

IDTCSPT857CNLGI

Manufacturer Part Number
IDTCSPT857CNLGI
Description
IC PLL CLK DVR SDRAM 40-VFQFPN
Manufacturer
IDT, Integrated Device Technology Inc
Type
PLL Clock Driverr
Datasheet

Specifications of IDTCSPT857CNLGI

Input
Clock
Output
Differential
Frequency - Max
220MHz
Voltage - Supply
2.3 V ~ 2.7 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-VFQFN, 40-VFQFPN
Frequency-max
220MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
CSPT857CNLGI
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FEATURES:
• 1 to 10 differential clock distribution
• Optimized for clock distribution in DDR (Double Data Rate)
• Operating frequency: 60MHz to 220MHz
• Very low skew:
• Very low jitter:
• 2.5V AV
• 2.6V AV
• CMOS control signal input
• Test mode enables buffers while disabling PLL
• Low current power-down mode
• Tolerant of Spread Spectrum input clock
• Available in 48-pin TSSOP, 40-pin VFQFPN, and 56-pin VFBGA
APPLICATIONS:
• Meets or exceeds JEDEC standard JESD 82-1A for registered
• Meets proposed DDR1-400 specification
• For all DDR1 speeds: PC1600 (DDR200), PC2100 (DDR266),
• Along with SSTV16857, SSTVF16857, SSTV16859, SSTVM16859,
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
IDTCSPT857C
2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER
c
SDRAM applications
– <100ps for PC1600 - PC2700
– <75ps for PC3200
– <75ps for PC1600 - PC2700
– <50ps for PC3200
packages
DDR clock driver
PC2700 (DDR333), PC3200 (DDR400)
SSTVF16859, DDR1 register, provides complete solution for
DDR1 DIMMs
2008 Integrated Device Technology, Inc.
DD
DD
and 2.5V V
and 2.6V V
DDQ
DDQ
for PC1600-PC2700
for PC3200
2.5V - 2.6V PHASE LOCKED
LOOP DIFFERENTIAL 1:10
SDRAM CLOCK DRIVER
1
DESCRIPTION:
to distribute one differential clock input pair(CLK, CLK ) to 10 differential output
pairs (Y
FBOUT). External feedback pins (FBIN, FBIN) for synchronization of the
outputs to the input reference is provided. A CMOS Enable/Disable pin is
available for low power disable. When the input frequency falls below
approximately 20MHz, the device will enter power down mode. In this mode,
the receivers are disabled, the PLL is turned off, and the output clock drivers
are tristated, resulting in a current consumption of less than 200μA.
for very low I/O phase error, skew, and jitter, while maintaining frequency and
duty cycle over the operating voltage and temperature range. The CSPT857C,
designed for use in both module assemblies and system motherboard based
solutions, provides an optimum high-performance clock source.
+70°C) and Industrial Temperature Range (-40°C to +85°C). See Ordering
Information for details.
The CSPT857C is a PLL based clock driver that acts as a zero delay buffer
The CSPT857C requires no external components and has been optimised
The CSPT857C is available in Commercial Temperature Range (0°C to
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
[0:9]
, Y
[0:9]
) and one differential pair of feedback clock output (FBOUT,
NOVEMBER 2008
IDTCSPT857C
DSC-6201/17

Related parts for IDTCSPT857CNLGI

IDTCSPT857CNLGI Summary of contents

Page 1

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER FEATURES: • differential clock distribution • Optimized for clock distribution in DDR (Double Data Rate) SDRAM applications • Operating frequency: 60MHz to 220MHz • Very low skew: ...

Page 2

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER FUNCTIONAL BLOCK DIAGRAM PWRDWN CLK CLK FBIN FBIN COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES TEST MODE LOGIC AV DD PLL ...

Page 3

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER PIN CONFIGURATIONS GND V 4 DDQ V GND 3 DDQ ...

Page 4

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER PIN CONFIGURATIONS GND DDQ CLK 5 GND 6 CLK V 7 DDQ AV DD ...

Page 5

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER RECOMMENDED OPERATING CONDITIONS Symbol Parameter AV Supply Voltage DD V I/O Supply Voltage DDQ T Operating Free-Air Temperature A PIN DESCRIPTION (TSSOP/TVSOP) Pin Name Pin Number AGND AV DD CLK, ...

Page 6

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER FUNCTION TABLE (1) INPUTS PWRDWN AV CLK DD GND H L GND (2) Nominal H L (2) Nominal H H (2,3) Nominal ...

Page 7

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE FOR PC3200 Following Conditions Apply Unless Otherwise Specified: Commercial 0°C to +70°C; Industrial Symbol Parameter V Input Clamp Voltage (All ...

Page 8

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER SWITCHING CHARACTERISTICS FOR PC1600 - PC2700 Symbol Description PLH (1) t LOW to HIGH Level Propagation Delay Time PHL (1) t HIGH to LOW Level Propagation Delay Time t Jitter ...

Page 9

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER SWITCHING CHARACTERISTICS FOR PC3200 Symbol Description PLH (1) t LOW to HIGH Level Propagation Delay Time PHL (1) t HIGH to LOW Level Propagation Delay Time t Jitter (period), see ...

Page 10

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS V CSPT857C DDQ Z = 60Ω 60Ω CSPT857C V /2 DDQ COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES 60Ω ...

Page 11

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS Yx, FBOUT Yx, FBOUT CLK CLK FBIN FBIN Yx Yx Yx, FBOUT Yx, FBOUT COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t t cycle n cycle n+1 ...

Page 12

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT Yx, FBOUT COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t cycle n 1 ...

Page 13

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER TEST CIRCUIT AND SWITCHING WAVEFORMS 80% Clock Inputs and Outputs 20% APPLICATION INFORMATION Clock Structure # of SDRAM Loads per Clock #1 #2 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES t R ...

Page 14

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER APPLICATION INFORMATION CLK R = 120Ω 14pF CLK ( 120Ω 14pF Feedback path CLK R = 120Ω 14pF CLK ( ...

Page 15

IDTCSPT857C 2.5V - 2.6V PLL DIFFERENTIAL 1:10 SDRAM CLOCK DRIVER ORDERING INFORMATION XXXXX XX CSPT Device Type Package Process CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES X Blank 0°C to +70°C ...

Related keywords