Hittite Microwave Corporation
Timing Solutions
April 2012
1
Hittite Microwave Confidential & Proprietary
April 27, 2012
Agenda
 Hittite Microwave Clocks & Timing Introduction
 Cellular Infrastructure, Networking, Fiber Optics Timing Applications
 Current Products for:
 Clock Distribution
 Clock Generation
 Jitter Attenuation
 Roadmap of Future Products
 Customer Support
2
Hittite Microwave Confidential
April 27, 2012
New Hittite Product Line:
Clocks & Timing
 Product Line comprises of 3 Product Families:
Clock Distribution ICs
• Fan-out Buffers
• Phase Adjustment Circuits
• VALUE PROPOSITIONS:
• Low Jitter Distribution of Primary Reference Frequency
• Synchronization of Parallel Data Buses (ADC/DAC, Processor-Memory Interfaces)
Clock Generators
• Low Jitter Clock Multipliers, PLLVCOs
• VALUE PROPOSITIONS:
• Multiplication of low frequency references to line rate frequencies (10s of MHz to GHz)
• ADC / DAC Clocking Applications
• Generation of multiple frequencies from a single source
Jitter Attenuators
• Clock Clean up ICs
• Digital Management of Clock Signals
• VALUE PROPOSITIONS:
• Backplane or network clock clean-up
• Frequency Switching, holdover and redundancy functions
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Hittite Microwave Confidential
April 27, 2012
Current Products
 HMC987 – 1:8 LVPECL Fan-out Buffer, 4GHz – In Production
 HMC1032 – 125MHz -350MHz Clock Generator – In Production
 HMC1034 – 125MHz -3000MHz Clock Generator – In Production
 HMC988 – In Production
 HMC1031 – Ultra-low power (1mA typical) integer PLL with x1,x5 & x10 – In
Production
 Eval Board & Samples available
 Key Applications: Networking, Fiber Optics, Cellular, Broadband, T&M
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Hittite Microwave Confidential
April 27, 2012
Segment Analysis
-BTS
Where to Use HMC830/ RF PLLVCOs:
•LO Sources for RF Mixer/Modulator
•RF Front-ends
Where to Use HMC1032/34 Clock
Generators & CLK Distribution ICs:
•All Timing Sockets
•ADC/DAC Clocking
•FPGA/DSP/Processor Clocking
•Driving RF PLLVCO Inputs
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Hittite Microwave Confidential
April 27, 2012
Networking Architecture
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Hittite Microwave Confidential
April 27, 2012
Fiber Optics
100G DWDM Timing Architecture
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Hittite Microwave Confidential
April 27, 2012
Current Products
Current Products
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Hittite Microwave Confidential
April 27, 2012
HMC987LP5E 8GHz 1:9 Fan-Out Buffer
Applications
Features
 Low jitter/ Low phase noise clock distribution
 Single-ended or differential to differential conversion
 Multiple Output Drivers
 Up to 8 LVPECL outputs (800mVpp into 50 Ohm SE)
1 Adjustable power RF output (-3 to 6 dBm)
 LVPECL or AC coupled input compatible
 Serial or parallel control, Hardware Chip-Enable
 DC to 8GHz operating frequency
Mass
 Wireless/Wired communications
 Level translation
 High performance instrumentation
 Medical imaging
Parameter
Input/Output Frequency
Input Power (LVPECL or AC coupled)
Output Power (LVPECL)
Typical
Units
DC – 8000
MHz
-3 to +8
dBm
+5
dBm
Phase Noise (1k / 1M /100MHz)
@ 500 MHz
@ 1 GHz
@ 2 GHz
@ 4 GHz
-166 / -166 / -166
-165 / -166 / -166
-165 / -165 / -165
-163 / -163 / -163
Jitter Density (@ 1MHz offset)
@ 1GHz
@ 2 GHz
@ 4 GHz
1.3a
0.9a
0.6a
Current consumption (all drivers ON and
no output resistor loads):
On 3.3V VCC
~ 220
9
Production
dBc/Hz
Sec/rtHz
mA
Hittite Microwave Confidential
April 27, 2012
HMC987LP5E 8GHz 1:9 Fan-Out Buffer
Competition:
-150 to -155dBc/Hz
Noise floor
Competition
HMC987 Floor:
-165dBc/Hz
F=100MHz
100MHz
OCXO
Reference
HMC987 Performance Highlights:
1.
2.
3.
4.
10
8fs RMS additive jitter (12k to 20MHz integration bandwidth)
-167dBc/Hz noise floor vs. -150dBc/Hz typ for comparable parts in the market (>1MHz offset from carrier)
3.1ps output-to-output skew
No need for a negative supply pin –true 800mV LVPECL outputs
Hittite Microwave Confidential
April 27, 2012
HMC988LP3E Divider Ultra Low Noise Clock Divider
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Hittite Microwave Confidential
April 27, 2012
Product Sheet
HMC1032/34: Frac-N Timing PLL+VCO
Features:







Target Applications:
125MHz to 3.0GHz Operation
<120fs Phase Jitter @ 2GHz (12k-20MHz Integration)
Exact Freq. Mode Fractional Synthesis -3Hz typ Resolution
Adjustable drive strength, CML true differential outputs
Adjustable Bandwidth via External Loop Filter (2nd order R-C)
Output Disable/Mute Control
Lock Detect Signal
5V VCC
CLKIN



Networking: Low Jitter Processor/FPGA clocks
Cellular Infrastructure: ADC/DAC references
Storage: Fiber Channel & PCIe freq translation
3.3V VDD
Loop
Filter
Programmable
14-bit, /R Div
[1:214]
Mass
Production
External
VCO
PFD
Selectable
Output
Dividers
Charge
Pump
[/1-/62]
OUT#
Programmable
19-bit /N Div
SPI
Prog
Interface
OUT
OE
CML Diff
Outputs
[1:219]
Lock
Detect
 Modulator
Key Specifications:
Product Type
Outputs
High
Performance
Freq Translator
1 CML diff pair
w/ adjustable
drive
12
Output Frequency Options
HMC1032:
125 – 350MHz
HMC1034:
125 – 3.0GHz
Supply
Voltages
Phase Jitter
Closed
Loop Floor
IDD (Total.
Typ)
5V &
3.3V
<120fs
12k-20MHz
@ 2GHz
-165dBc/Hz
188mA (5V)
52mA (3.3V)
Hittite Microwave Confidential
April 27, 2012
High Performance ADC Clocking
Hittite Clock Generators lead the industry in ADC clocking performance:
•Clock Phase Jitter [PJBW] is given by:
• ADC SNR is given by:
Total ADC SNR vs. Sample Clock Jitter:
Measurement Setup:
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Hittite Microwave Confidential
April 27, 2012
HMC1032 Application Example-1:
Measurement Results
 Using Hittite Clocks & Timing Products:
PHY #1
50MHz
Low Cost
XTAL Osc
312.5MHz
Hittite
PLLVCO
HMC1032
PHY #2
Hittite 1:N
Fanout
HMC987
PHY #N
SERDES
ADC/DACs
HMC1032 Performance:
•Driven by 50MHz Suntsu XO
•312.5MHz Integer Mode Operation
•Phase Noise@ HMC1032 Output:
•-123dBc/Hz @ 1kHz
•-130dBc/Hz @ 10kHz
•-136dBc/Hz @ 100kHz
•-148dBc/Hz @ 1MHz
•-170dBc/Hz @ 10MHz
•Phase Jitter:
•70.6fsRMS 12k-20MHz
•19fsRMS 1.875M-20MHz
•250kHz Loop Bandwidth
•High Phase Margin
•2nd Order, simple RC filter external
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Hittite Microwave Confidential
April 27, 2012
HMC1034 Phase Jitter Performance
HMC1034 Phase noise @ 2GHz
HMC1034 Phase noise @ 670MHz
-165 dBc/Hz
Silicon IC Competition @ 622.08MHz:
HMC1034 Integrated Phase Jitter:
Integration
Bandwidth
Typical PJ @ 2GHZ
Integer Mode
[fsRMS]
Typical PJ @ 2GHZ
Frac-N Mode
[fsRMS]
100Hz to 100MHz
114
145
12k to 20MHz
90
118
20k to 80MHz
87
112
50k to 80MHz
82
100
4M to 80MHz
12
12
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Hittite Microwave Confidential
-150
dBc/Hz
April 27, 2012
Samples Now
HMC1033: 3.3V PLL+VCO IC
Features:







Target Applications:
25MHz to 2.5GHz Operation
<200fs Phase Jitter @ 2GHz (Frac-N), <100fs Integer Mode
Exact Freq. Mode Fractional Synthesis -3Hz typ Resolution
Adjustable drive strength, LVPECL, LVDS differential outputs
Adjustable Bandwidth via External Loop Filter (2nd order R-C)
Output Disable/Mute Control
Lock Detect Signal



Loop
Filter
Programmable
14-bit, /R Div
[1:214]
ES:NOW
MP:Q2’12
External
3.3V VDD
CLKIN
Networking: Low Jitter Processor/FPGA clocks
Cellular Infrastructure: ADC/DAC references
Storage: Fiber Channel & PCIe freq translation
VCO
PFD
Charge
Pump
OUT#
OE
[1:219]
Lock
Detect
OUT
[/1-/62]
Programmable
19-bit /N Div
SPI
Prog
Interface
Selectable
Output
Dividers
LVDS-compatible
OR
LVPECL
Output
 Modulator
Key Specifications:
17
Product Type
Outputs
High
Performance
Freq Translator
1 LVDScompatible or
LVPECL
Output Frequency
Options
HMC1033: 25-500MHz
HMC1035: 25-2.5GHz
Supply
Phase
Jitter
Closed Loop Floor
IDD (Total.
Typ)
3.3V
ONLY
<100fs
@ 2GHz
(int. mode)
-154dBc/Hz (low IDD mode)
-160dBc/Hz (high perf
mode)
175mA
(3.3V)
Hittite Microwave Confidential
April 27, 2012
Integer Mode PLL: HMC1031MS8E
Features and Applications
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Hittite Microwave Confidential
April 27, 2012
High Performance Clock Generation
Lower Freq High Q Resonators
 Hittite High Performance PLLVCO ICs may be used to replace hard-to-source,
overtone VCXO/VCSO device for Low Jitter Clock Generation :
 Typical Application:
10MHz
OCXO
Charge Pump
Output
Frac-N PLL
Freq
Multiplier
High
Frequency
VCXO
>350MHz
Output
Frequency
$$$
 Using Hittite Clocks & Timing Products:
10MHz
OCXO
Charge Pump
Output
Hittite
Integer PLL
HMC1031
50/100MHz
Low
Frequency
VCXO
Hittite Frac-N
PLLVCO
HMC1034
>350MHz
Output
Frequency
$
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Hittite Microwave Confidential
April 27, 2012
Jitter Attenuation Performance
HMC1034LP6GE
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Hittite Microwave Confidential
April 27, 2012
Jitter Attenuator –Discrete Hittite IC
19.44MHz in – 2GHz Clock Output
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Hittite Microwave Confidential
April 27, 2012
THANK YOU
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Hittite Microwave Confidential
April 27, 2012