8737-11PGI8 IDT, Integrated Device Technology Inc, 8737-11PGI8 Datasheet

8737-11PGI8

Manufacturer Part Number
8737-11PGI8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Type
Clock Dividerr
Datasheet

Specifications of 8737-11PGI8

Number Of Clock Inputs
2
Mode Of Operation
Differential
Output Frequency
650MHz
Output Logic Level
LVCMOS/LVPECL/LVTTL
Operating Supply Voltage (min)
3.135V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.465V
Package Type
TSSOP
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
20
Lead Free Status / RoHS Status
Not Compliant
FEATURES:
• Two divide-by-1 and two divide-by-2 differential 3.3V LVPECL
• Selectable differential CLK, xCLK, or LVPECL clock inputs
• CLK, xCLK pair can accept the following differential input levels:
• PCLK, xPCLK supports the following input types: LVPECL, CML,
• Maximum output frequency: 650MHz
• Translates any single-ended input signal (LVCMOS, LVTTL, GTL)
• Output skew: 60ps (max.)
• Part-to-part skew: as low as 200ps
• Bank skew:
• Propagation delay: 1.7ns (max.)
• 3.3V operating supply
• Available in TSSOP package
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
CLK_SEL
c
IDT8737-11
LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL
CLK_EN
outputs
LVDS, LVPECL, LVHSTL, SSTL, and HCSL
and SSTL
to LVPECL levels with resistor bias on xCLK input
- Bank A, as low as 20ps
- Bank B, as low as 35ps
xPCLK
2004
PCLK
xCLK
CLK
MR
Integrated Device Technology, Inc.
1
0
LOW SKEW,
DIFFERENTIAL-TO-3.3V
LVPECL FANOUT BUFFER
D
LE
Q
÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷
1
DESCRIPTION:
LVPECL fanout buffer-divider. It has two selectable clock inputs. The CLK/
xCLK pair can accept most standard differential input levels. The PCLK/
xPCLK pair can accept LVPECL, CML, or SSTL input levels. The clock enable
is internally synchronized to eliminate runt pulses on the outputs during
asynchronous assertion/deassertion of the clock enable pin.
11 ideal for clock distribution applications that demand well-defined perfor-
mance and repeatability.
The IDT8737-11 is a low skew, high performance differential-to-3.3V
Guaranteed output and part-to-part skew characteristics make the IDT8737-
2
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
÷1
÷2
FEBRUARY 2009
IDT8737-11
DSC 6168/5
QA0
xQA0
QA1
xQA1
QB0
xQB0
QB1
xQB1

Related parts for 8737-11PGI8

8737-11PGI8 Summary of contents

Page 1

... LVPECL, CML, or SSTL input levels. The clock enable is internally synchronized to eliminate runt pulses on the outputs during asynchronous assertion/deassertion of the clock enable pin. Guaranteed output and part-to-part skew characteristics make the IDT8737- 11 ideal for clock distribution applications that demand well-defined perfor- mance and repeatability. ...

Page 2

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL PIN CONFIGURATION CLK_EN 2 CLK_SEL 3 CLK 4 xCLK 5 PCLK 6 xPCLK TSSOP TOP VIEW PIN DESCRIPTION (1) Symbol Number V 1 Power EE CLK_EN 2 Input CLK_SEL 3 Input CLK 4 Input xCLK 5 Input PCLK ...

Page 3

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL CONTROL INPUT FUNCTION TABLE Inputs MR CLK_EN CLK_SEL NOTES: 1. After CLK_EN switches, the clock outputs are disabled or enabled following a rising and falling input clock edge as shown in the CLK_EN Timing Diagram below. ...

Page 4

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL POWER SUPPLY CHARACTERISTICS - COMMERCIAL Symbol Parameter V Positive Supply Voltage DD I Power Supply Current EE DC ELECTRICAL CHARACTERISTICS, LVCMOS / LVTTL - COMMERCIAL Symbol Parameter V CLK_EN, CLK_SEL CLK_EN, CLK_SEL Input Current HIGH ...

Page 5

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL AC ELECTRICAL CHARACTERISTICS - COMMERCIAL All parameters measured at 500MHz unless noted otherwise; Cycle-to-cycle jitter = jitter on output; the part does not add jitter Symbol Parameter F Output Frequency MAX t Propagation Delay ...

Page 6

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL DC ELECTRICAL CHARACTERISTICS, LVPECL- INDUSTRIAL Symbol Parameter I Input Current HIGH PCLK IH xPCLK I Input Current LOW PCLK IL xPCLK V Peak-to-Peak Input Voltage PP V Common Mode Input Voltage CMR V Output Voltage HIGH ...

Page 7

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL PARAMETER MEASUREMENT INFORMATION V DD LVPECL -1.3V ± 0.135V EE xCLK, xPCLK CLK, PCLK xQx Qx xQy Qy COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES Z = 50Ω 50Ω Output Load Test Circuit ...

Page 8

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL PARAMETER MEASUREMENT INFORMATION - CONTINUED xQx Part 1 Qx xQy Part 2 Qy Clock Inputs and Outputs xCLK, xPLK CLK, PCLK xQA0, xQA1, xQB0, xQB1 QA0, QA1, QB0, QB1 ...

Page 9

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL APPLICATION INFORMATION WIRING THE DIFFERENTIAL INPUT TO ACCEPT SINGLE-ENDED LEVELS The diagram below shows how the differential input can be wired to accept single-ended levels. The reference voltage V bias resistors R1, R2, and C1. This bias circuit should be located as close as possible to the input pin. The ratio of R1 and R2 might need to be adjusted to position the V in the center of the input voltage swing ...

Page 10

... This section provides information on power dissipation and junction temperature for the IDT8737-11. Equations and example calculations are also provided. POWER DISSIPATION: The total power dissipation for the IDT8737-11 is the sum of the core power plus the power dissipated in the load(s). The following is the power dissipation for the ...

Page 11

... IDT8737-11 LOW SKEW, ÷ ÷ ÷ ÷ ÷ 1/÷ ÷ ÷ ÷ ÷ 2 DIFFERENTIAL-TO-3.3V LVPECL CALCULATIONS AND EQUATIONS To calculate worst case power dissipation into the load, use the following equations, which assume a 50Ω load and a termination voltage of V For Logic HIGH: V ...

Page 12

... COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES Commercial (0°C to +70°C) Blank Industrial (-40°C to +85° Thin Shrink Small Outline Package PGG TSSOP - Green Low Skew, ÷1/ ÷2 Differential-to-3.3V LVPECL 8737-11 Fanout Buffer for SALES: for Tech Support: 800-345-7015 or 408-284-8200 clockhelp@idt.com fax: 408-284-2775 www.idt.com 12 ...

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