sy89610l Micrel Semiconductor, sy89610l Datasheet

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sy89610l

Manufacturer Part Number
sy89610l
Description
3.3v, 77.75mhz To 694mhz Precision Frequency Synthesizer And Jitter Attenuator With Ultra-low Phase Noise
Manufacturer
Micrel Semiconductor
Datasheet

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Part Number:
sy89610lMG
Manufacturer:
ON
Quantity:
100
General Description
The SY89610L is a 3.3V, fully differential CML
frequency synthesizer and jitter attenuator that accepts
a noisy clock between 19.44MHz and 694MHz,
depending on I/O frequency selection, and provides an
ultra-low jitter clock signal. This corresponds to an
output clock frequency between 77.75MHz and 694MHz
covering SONET, SAS, SATA, Fiber Channel, and many
other standards. Output jitter is typically 1ps
SY89610L includes a 1kHz to 10kHz programmable
loop bandwidth so it can accommodate different jitter
attenuation applications and PLL requirements.
The SY89610L has an auto-tune circuit that enables
precision frequency calibration. Auto-tuning is initiated
on a LOW to HIGH transition on the RESET input and
during power-up. This feature requires a valid reference
input.
The differential input includes Micrel’s unique, 3-pin
input termination architecture that interfaces to LVPECL,
LVDS or CML differential signals, (AC-coupled or DC-
coupled) as small as 100mV without any level-shifting or
termination resistor networks in the signal path. For AC-
coupled input interface applications, an on-board output
reference voltage (V
The outputs are compatible with 400mV typical swing
into 50Ω loads, with rise/fall times guaranteed to be less
than 250ps.
The SY89610L operates at 3.3V ±10% supply and the
output can accommodate 1.8V-3.3V operation with the
dedicated output supply. The part is guaranteed to
operate over the full industrial temperature range
(–40°C to +85°C). The SY89610L is part of Micrel’s
Precision Edge
Datasheets and support documentation can be found on
Micrel’s web site at www.micrel.com.
April 2008
Precision Edge is a registered trademark of Micrel, Inc.
MLF and MicroLeadFrame are registered trademarks of Amkor Technology.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
®
product line.
REF-AC
) is provided to bias the V
rms
. The
T
pin.
Frequency Synthesizer and Jitter Attenuator
Features
Applications
3.3V, 77.75MHz to 694MHz Precision
Accepts high jitter input clock signal and attenuates
Output Frequency Range: 77.75MHz – 694MHz
Input Frequency Range: 19.44MHz – 694MHz
Phase Noise and Jitter performance:
CML compatible output signal
3-pin input accepts an AC- or DC-coupled
Unique, Auto-Tune circuitry enables precision
Internal source termination to minimize round-trip
Programmable Loop Bandwidth: 1kHz-10kHz
Output Enable/disable function
Only one external component needed for LC VCO
Includes Loss of Lock (LOL) output pin
Includes Auto-tune Circuit for precision frequency
1.8V ±5% to 3.3V ±10% output power supply
3.3V ±10% power supply operation
Industrial temperature range: –40°C to +85°C
Available in 32-pin (5mm x 5mm) MLF
SONET/SDH Communications
10GbE FEC
10GbE LAN PHY
High-end Routers
Add-Drop MUXes
it to provide Ultra-Low Jitter and Phase Noise clock
signal at the output
– <2ps
– Low Phase Noise: -80dBc/Hz at 1 kHz offset
differential input (LVDS, LVPECL, and CML)
frequency calibration
reflections
(a filter capacitor)
calibration
with Ultra-Low Phase Noise
RMS
Output Jitter Gen (12kHz-20MHz)
SY89610L
hbwhelp@micrel.com
or (408) 955-1690
Precision Edge
M9999-041708-C
®
package
®

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sy89610l Summary of contents

Page 1

... The SY89610L operates at 3.3V ±10% supply and the output can accommodate 1.8V-3.3V operation with the dedicated output supply. The part is guaranteed to operate over the full industrial temperature range (–40°C to +85°C). The SY89610L is part of Micrel’s ® Precision Edge product line. Datasheets and support documentation can be found on Micrel’ ...

Page 2

... Micrel, Inc. Functional Block Diagram April 2008 2 hbwhelp@micrel.com SY89610L M9999-041708-C or (408) 955-1690 ...

Page 3

... Tape and Reel. Pin Configuration April 2008 Operating Package Marking Range SY89610L Industrial with Pb-Free bar-line indicator Industrial SY89610L with Pb-Free bar-line indicator = 25°C, DC Electricals only. A ® 32-Pin MLF (MLF-32) 3 SY89610L Lead Finish NiPdAu Pb-Free NiPdAu Pb-Free M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 ...

Page 4

... Single-ended Input: These LVTTL/CMOS inputs determine the loop bandwidth of the jitter reducing PLL. BWSEL0 and BWSEL1 will default to a logic HIGH state if left open with a typical pull-up current of 1.3µA. See “Loop Bandwidth Table.” 4 SY89610L -1.4V used when AC-coupling DD pin. Bypass with 0.01uF low ESR T pin ...

Page 5

... See “I/O Frequency Table” for more details. No Connect. Solder pins to floating pads. Positive Power Supply: VDDC pins are connected to core and input stage that connects to a 3.3V + 10% power supply. Bypass with 0.1uF//0.01uF low ESR capacitors as close to the V pins as possible SY89610L M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 ...

Page 6

... SY89610L Output Mult. Max. 86.75 1 173.5 2 347 4 694 8 173.5 1 347 2 694 4 347 1 694 2 694 1 86.75 4 173.5 8 347 16 694 32 M9999-041708-C or (408) 955-1690 ...

Page 7

... A (4) ® MLF Still-air (θ ) ...........................................35°C/W JA Junction-to-board (ψ ) ..........................20°C/W JB Min Typ 3.0 3.3 1. 100 1.2 0 0.1 0.2 V –1.5 V –1 hbwhelp@micrel.com SY89610L Max Units 3.6 V 3.6 V 120 mA Ω 115 –0 1 –1 1.28 V and θ ...

Page 8

... Min Typ Max 2.5 0.8 2.7 0 Min Typ Max 2.5 0.8 2.7 0.2 Vdd/2 – 0.1 Vdd/2 Vdd -50 -5 M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 SY89610L Units Ω Units µA µA U nit µA µA ...

Page 9

... V > 200mV OUT Clock PLL out of Lock, ~4ms sustained I/O difference I/O frequency = 155MHz Max VCO frequency 20% to 80% 20% to 80% BW1 = 0, BW0 = 0 BW1 = 0, BW0 = 1 BW1 = 1, BW0 = 0 BW1 = 1, BW0 = 1 9 SY89610L /t < 400ps –40° Min Typ Max Units 19.44 694 77.75 694 1244 ...

Page 10

... Min Typ Max 1000 0.1 Min Typ Max 2000 0.1 Min Typ Max 5000 0.1 Min Typ Max 10,000 0.1 M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 SY89610L Units ps RMS Units psRMS Units psRMS Units psRMS ...

Page 11

... Phase Noise The SY89610L has very low phase noise at 1kHz offset from the center frequency. Phase noise is measured at the output with a jitter-free signal injected at the input. The loop bandwidth settings have a minor impact on the phase noise values. For 10kHz loop bandwidth, we guarantee the phase noise less than - 80dBc/Hz ...

Page 12

... Micrel, Inc. Phase Noise Characteristics April 2008 12 hbwhelp@micrel.com SY89610L M9999-041708-C or (408) 955-1690 ...

Page 13

... Micrel, Inc. Input and Output Stage Figure 1a. Simplified Differential Input Buffer Figure 1b. Simplified CML Output Buffer April 2008 Single-Ended and Differential Swings Figure 2a. Single-Ended Swing Figure 2b. Differential Swing 13 hbwhelp@micrel.com SY89610L M9999-041708-C or (408) 955-1690 ...

Page 14

... Micrel, Inc. Input Interface Applications Figure 3a. CML Interface (DC-Coupled) Option: May connect Figure 3d. LVPECL Interface (AC-Coupled) April 2008 Figure 3b. CML Interface (AC-Coupled) Figure 3e. LVDS Interface 14 SY89610L Figure 3c. LVPECL Interface (DC-Coupled) M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 ...

Page 15

... Micrel, Inc. CML Output Termination Figure 4a. CML DC-Coupled Termination April 2008 Figure 4b. CML DC-Coupled Termination Figure 4c. CML AC-Coupled Termination 15 SY89610L M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 ...

Page 16

... Micrel, Inc. Package Information Packages Notes: 1. Package meets Level 2 Moisture Sensitivity Classification. 2. All parts are dry-packed before shipment. 3. Exposed pad must be soldered to ground for proper thermal management April 2008 ® 32-Pin (5mm x 5mm) MLF (MLF-32) 16 SY89610L M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 ...

Page 17

... A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is a Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. April 2008 PCB Thermal Consideration for 32-pin MLF © 2008 Micrel, Incorporated. 17 SY89610L ® Package M9999-041708-C hbwhelp@micrel.com or (408) 955-1690 ...

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