AD9515BCPZ Analog Devices Inc, AD9515BCPZ Datasheet

IC CLOCK DIST 2OUT PLL 32LFCSP

AD9515BCPZ

Manufacturer Part Number
AD9515BCPZ
Description
IC CLOCK DIST 2OUT PLL 32LFCSP
Manufacturer
Analog Devices Inc
Type
Fanout Buffer (Distribution), Dividerr
Datasheet

Specifications of AD9515BCPZ

Design Resources
Low Jitter Sampling Clock Generator for High Performance ADCs Using AD9958/9858 and AD9515 (CN0109)
Number Of Circuits
1
Ratio - Input:output
1:2
Differential - Input:output
Yes/Yes
Input
Differential
Output
CMOS, LVDS, LVPECL
Frequency - Max
1.6GHz
Voltage - Supply
3.135 V ~ 3.465 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-LFCSP
Frequency-max
1.6GHz
No. Of Multipliers / Dividers
2
No. Of Amplifiers
3
Supply Voltage Range
3.135V To 3.465V
Slew Rate
1V/ns
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AD9515/PCBZ - BOARD EVAL CLOCK 2CH AD9515
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

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FEATURES
1.6 GHz differential clock input
2 programmable dividers
1.6 GHz LVPECL clock output
800 MHz/250 MHz LVDS/CMOS clock output
Device configured with 4-level logic pins
Space-saving, 32-lead LFCSP
APPLICATIONS
Low jitter, low phase noise clock distribution
Clocking high speed ADCs, DACs, DDSs, DDCs, DUCs, MxFEs
High performance wireless transceivers
High performance instrumentation
Broadband infrastructure
ATE
GENERAL DESCRIPTION
The AD9515 features a two-output clock distribution IC in a
design that emphasizes low jitter and phase noise to maximize
data converter performance. Other applications with
demanding phase noise and jitter requirements also benefit
from this part.
There are two independent clock outputs. One output is
LVPECL, while the other output can be set to either LVDS or
CMOS levels. The LVPECL output operates to 1.6 GHz. The
other output operates to 800 MHz in LVDS mode and to
250 MHz in CMOS mode.
Each output has a programmable divider that can be set to
divide by a selected set of integers ranging from 1 to 32. The
phase of one clock output relative to the other clock output can
be set by means of a divider phase select function that serves as
a coarse timing adjustment.
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.
Divide-by in range from1 to 32
Phase select for coarse delay adjust
Additive output jitter 225 fs rms
Additive output jitter 300 fs rms/290 fs rms
Time delays up to 10 ns
1.6 GHz Clock Distribution IC, Dividers,
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
SYNCB
The LVDS/CMOS output features a delay element with three
selectable full-scale delay values (1.5 ns, 5 ns, and 10 ns), each
with 16 steps of fine adjustment.
The AD9515 does not require an external controller for
operation or setup. The device is programmed by means of
11 pins (S0 to S10) using 4-level logic. The programming pins
are internally biased to ⅓ V
⅔ V
The AD9515 is ideally suited for data converter clocking
applications where maximum converter performance is
achieved by encode signals with subpicosecond jitter.
The AD9515 is available in a 32-lead LFCSP and operates from
a single 3.3 V supply. The temperature range is −40°C to +85°C.
CLKB
CLK
S
. V
VREF
S
(3.3 V) and GND (0 V) provide the other two logic levels.
Delay Adjust, Two Outputs
FUNCTIONAL BLOCK DIAGRAM
RSET
S10 S9
VS
S8
© 2005 Analog Devices, Inc. All rights reserved.
/1. . . /32
/1. . . /32
S7
S
GND
SETUP LOGIC
. The VREF pin provides a level of
Figure 1.
S6
S5
AD9515
S4
Δ
t
S3
S2
LVPECL
LVDS/CMOS
AD9515
www.analog.com
S1
S0
OUT0
OUT0B
OUT1
OUT1B

Related parts for AD9515BCPZ

AD9515BCPZ Summary of contents

Page 1

FEATURES 1.6 GHz differential clock input 2 programmable dividers Divide-by in range from1 to 32 Phase select for coarse delay adjust 1.6 GHz LVPECL clock output Additive output jitter 225 fs rms 800 MHz/250 MHz LVDS/CMOS clock output Additive output ...

Page 2

AD9515 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Clock Input.................................................................................... 3 Clock Outputs ............................................................................... 3 Timing Characteristics ................................................................ 4 Clock Output Phase Noise .......................................................... ...

Page 3

SPECIFICATIONS Typical (typ) is given for V = 3.3 V ± 5 and maximum (max) values are given over full V CLOCK INPUT Table 1. Parameter CLOCK INPUT (CLK) Input Frequency 1 1 Input Sensitivity Input Common-Mode Voltage, ...

Page 4

AD9515 TIMING CHARACTERISTICS CLK input slew rate = 1 V/ns or greater. Table 3. Parameter LVPECL Output Rise Time Output Fall Time PROPAGATION DELAY CLK-TO-LVPECL OUT PECL Divide = 1 Divide = 2 − ...

Page 5

Parameter Zero Scale Delay Time Zero Scale Variation with Temperature 2 Full Scale Time Delay Full Scale Variation with Temperature Linearity, DNL Linearity, INL 1 This is the difference between any two similar delay paths across ...

Page 6

AD9515 Parameter CLK = 491.52 MHz, OUT = 245.76 MHz Divide = Offset @ 100 Hz Offset @ 1 kHz Offset @ 10 kHz Offset @ 100 kHz Offset >1 MHz Offset CLK = 245.76 MHz, ...

Page 7

Parameter CLK = 491.52 MHz, OUT = 122.88 MHz Divide = Offset @ 100 Hz Offset @ 1 kHz Offset @ 10 kHz Offset @ 100 kHz Offset @ 1 MHz Offset >10 MHz Offset CLK ...

Page 8

AD9515 Parameter CLK = 78.6432 MHz, OUT = 78.6432 MHz Divide = Offset @ 100 Hz Offset @ 1 kHz Offset @ 10 kHz Offset @ 100 kHz Offset @ 1 MHz Offset >10 MHz Offset ...

Page 9

Parameter CMOS OUTPUT ADDITIVE TIME JITTER CLK = 400 MHz CMOS (OUT1) = 100 MHz Divide = 4 CLK = 400 MHz CMOS (OUT1) = 100 MHz Divide = 4 LVPECL (OUT0 MHz 1 DELAY BLOCK ADDITIVE TIME ...

Page 10

AD9515 POWER Table 7. Parameter 1 POWER-ON SYNCHRONIZATION V Transit Time from 2 3 POWER DISSIPATION POWER DELTA Divider (Divide = 2 to Divide = 1) LVPECL Output LVDS Output CMOS Output (Static) CMOS Output (@ ...

Page 11

TIMING DIAGRAMS t CLK CLK t PECL t LVDS t CMOS Figure 2. CLK/CLKB to Clock Output Timing, Divide = 1 Mode DIFFERENTIAL 80% LVPECL 20 Figure 3. LVPECL Timing, Differential DIFFERENTIAL 20% SINGLE-ENDED 20 Rev. ...

Page 12

AD9515 ABSOLUTE MAXIMUM RATINGS Table 8. With Respect to Parameter or Pin VS GND RSET GND CLK, CLKB GND CLK CLKB OUT0, OUT0B, OUT1, OUT1B GND 1 Junction Temperature Storage Temperature Lead Temperature (10 sec) ESD CAUTION ESD (electrostatic discharge) ...

Page 13

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS VS 1 CLK 2 CLKB 3 AD9515 VS 4 TOP VIEW (Not to Scale) SYNCB 5 VREF 6 S10 Figure 6. 32-Lead LFCSP Pin Configuration Note that the exposed paddle on this ...

Page 14

AD9515 TERMINOLOGY Phase Jitter and Phase Noise An ideal sine wave can be thought of as having a continuous and even progression of phase with time from 0 to 360 degrees for each cycle. Actual signals, however, display a certain ...

Page 15

TYPICAL PERFORMANCE CHARACTERISTICS 0.3 LVPECL (DIV ON) 0.2 LVDS (DIV ON) 0.1 400 800 OUTPUT FREQUENCY (MHz) Figure 8. Power vs. Frequency—LVPECL, LVDS START 300kHz STOP 5GHz Figure 9. CLK Smith Chart (Evaluation Board) 0.5 0.4 LVPECL (DIV = 1) ...

Page 16

AD9515 VERT 500mV/DIV Figure 11. LVPECL Differential Output @ 1600 MHz VERT 100mV/DIV Figure 12. LVDS Differential Output @ 800 MHz VERT 500mV/DIV Figure 13. CMOS Single-Ended Output @ 250 MHz with 10 pF Load 1.8 1.7 1.6 1.5 1.4 ...

Page 17

OFFSET (Hz) Figure 17. Additive Phase Noise—LVPECL, Divide = 1, 245.76 MHz –80 –90 –100 –110 –120 –130 –140 –150 –160 –170 10 100 1k 10k 100k OFFSET ...

Page 18

AD9515 FUNCTIONAL DESCRIPTION OVERALL The AD9515 provides for the distribution of its input clock on one or both of its outputs. OUT0 is an LVPECL output. OUT1 can be set to either LVDS or CMOS logic levels. Each output has ...

Page 19

Synchronization is initiated by pulling the SYNCB pin low for a minimum of 5 ns. The input clock does not have to be present at the time the command is issued. The synchronization occurs after four input clock cycles. The ...

Page 20

AD9515 PROGRAMMING Table 10. S0—OUT1 Delay Full Scale S0 Delay 0 Bypassed 1/3 1 Table 11. S1—Output Logic Configuration S1 OUT0 OUT1 0 LVPECL 790 mV LVDS 1/3 LVPECL 400 mV LVDS 2/3 ...

Page 21

Table 13. S5, S6, and S7—OUT1 OUT1 Divide (Duty Cycle 1 (50%) 2 (33 (50 (40%) 1/3 1/3 0 ...

Page 22

AD9515 DIVIDER PHASE OFFSET The phase offset of OUT0 and OUT1 can be selected (see Table 12 to Table 15). This allows the relative phase of OUT0 and OUT1 to be set. After a SYNC operation (see the Synchronization section), ...

Page 23

When the delay block is OFF (bypassed also powered down. OUTPUTS The AD9515 offers three different output level choices: LVPECL, LVDS, and CMOS. OUT0/OUT0B offers an LVPECL differential output. The LVPECL differential voltage swing (V ) can be ...

Page 24

AD9515 Exposed Metal Paddle The exposed metal paddle on the AD9515 package is an electrical connection, as well as a thermal enhancement. For the device to function properly, the paddle must be properly attached to ground (GND). The exposed paddle ...

Page 25

APPLICATIONS USING THE AD9515 OUTPUTS FOR ADC CLOCK APPLICATIONS Any high speed, analog-to-digital converter (ADC) is extremely sensitive to the quality of the sampling clock provided by the user. An ADC can be thought sampling mixer, and ...

Page 26

AD9515 LVDS CLOCK DISTRIBUTION The AD9515 provides one clock output (OUT2) that is selectable as either CMOS or LVDS levels. Low voltage differential signaling ( LVDS differential output option for OUT2. LVDS uses a current mode output stage. ...

Page 27

PHASE NOISE AND JITTER MEASUREMENT SETUPS WENZEL EVALUATION BOARD OSCILLATOR SPLITTER 0° ZESC-2-11 EVALUATION BOARD WENZEL OSCILLATOR ⎡ V ⎢ A_RMS ⎢ ⎣ J_RMS where the rms time jitter. j_RMS SNR is the signal-to-noise ratio. ...

Page 28

... PLANE ORDERING GUIDE Model Temperature Range AD9515BCPZ 1 −40°C to +85°C 1 AD9515BCPZ-REEL7 −40°C to +85°C AD9515/PCB Pb-free part. © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05597–0–7/05(0) 5.00 ...

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