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Micrel, Inc.
3.3V/5V 800MHz LVTTL/LVCMOS-to-DIFFERENTIAL LVPECL TRANSLATOR
Precision Edge(R) SY89329V Precision Edge(R)
SY89329V
FEATURES
s Guaranteed AC performance over temp and voltage: * DC-to-800MHz fMAX * <100ps IN-to-OUT tpd s Ultra-low jitter design: * <1psRMS random jitter * <10psPP deterministic jitter * <1psRMS cycle-to-cycle jitter * <1psPP total jitter (clock) s Differential LVPECL output s ICC max. 20mA s Q output will default HIGH with inputs open s Power supply 3.3V 10% or 5.0V 10% s -40C to +85C temperature range s Available in ultra-small 8-pin (2mm x 2mm) MLFTM package Precision Edge(R)
DESCRIPTION
The SY89329V is a TTL/CMOS-to-differential PECL translator. Capable of running from a 3.3V or 5V supply, the part can be used in either LVTTL/LVCMOS/LVPECL or TTL/CMOS/PECL systems. The device requires only a single positive supply of 3.3V or 5V; no negative supply is required. The ultra-small 8-pin MLFTM package of the SY89329V makes it ideal for applications where space, performance, and low power are at a premium. For applications that require a dual translator in this same ultra-small MLFTM package, consider the SY89322V. All support documentation can be found on Micrel's web site at www.micrel.com.
APPLICATIONS
s s s s High-speed logic Data communications systems Wireless communications systems Telecom systems
FUNCTIONAL BLOCK DIAGRAM
TYPICAL APPLICATIONS CIRCUIT
NC LVPECL Q /Q NC
1 2 3 4
8 7 6 5
VCC IN NC VEE
SY89329V Backplane
LVTTL/LVCMOS
2.0V Input Swing
800mV Output Swing
8-Pin MLFTM (2mm x 2mm)
VCC 2.4V VCC 2.3V 2.0V 1.5V 0.4V Single-Ended LVTTL/LVCMOS Input Differential LVPECL Output 800mV Swing
Typical values for VCC = 3.3V
Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc. M9999-072005 hbwhelp@micrel.com or (408) 955-1690
Rev.: B Amendment: /0
1
Issue Date: July 2005
Micrel, Inc.
Precision Edge(R) SY89329V
PACKAGE/ORDERING INFORMATION
Ordering Information
NC 1 Q2 /Q 3 NC 4 8 VCC 7 IN 6 NC 5 GND
Part Number SY89329VMITR SY89329VMGTR
Package Type MLF-8 MLF-8
Operating Range Industrial Industrial
Package Marking 329 329 with Pb-Free bar-line indicator
Lead Finish Sn-Pb Pb-Free NiPdAu
8-Pin MLFTM
PIN DESCRIPTION
Pin Number 7 8 2, 3 5 1, 4, 6 Pin Name IN VCC Q, /Q GND, Exposed Pad NC Pin Function Single-ended input: This is the LVTTL/LVCMOS input to the device. Input switching threshold is VCC/2. If left floating, Q output will default HIGH. Positive power supply. Bypass with 0.1F0.01F low ESR capacitors. Differential LVPECL output: This output is the output of the device. Terminate with 50 to VCC-2V. See "Output Interface Applications" section. Defaults HIGH if IN is floating. Ground: Ground pin and exposed pad must be connected to the same ground plane. No connect.
M9999-072005 hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
Precision Edge(R) SY89329V
Absolute Maximum Ratings(1)
Supply Voltage (VCC) ................................ -0.5V to + 4.0V Input Voltage (VIN) ........................................ -0.5V to VCC LVPECL Output Voltage (VOUT) .... VCC-1.0V to VCC+0.5V LVPECL Output Current (IOUT) Continuous ............................................................. 50mA Surge .................................................................... 100mA Input Current Source or sink current on IN ................................ 50mA Lead Temperature (soldering, 20 sec.) ................... +260C Storage Temperature (TS) ...................... -65C to +150C
Operating Ratings(2)
Supply Voltage (VCC) ..................................... 3.0V to 3.3V ................................................................ 4.5V to 5.5V Ambient Temperature (TA) ........................ -40C to +85C Package Thermal Resistance(3) MLFTM (JA) Still-Air ................................................................. 93C/W 500lfpm ............................................................... 87C/W MLFTM (JB) Junction-to-board ............................................... 32C/W
DC ELECTRICAL CHARACTERISTICS(4)
Symbol VCC ICC Parameter Power Supply Condition Min 3.0 4.5 Power Supply Current No load, max. VCC. Typ 3.3 5.0 Max 3.6 5.5 20 Units V V mA
LVTTL/LVCMOS ELECTRICAL CHARACTERISTICS(4)
TA= -40C to +85C; Unless otherwise stated. Symbol VIH VIL IIH IIL VIK Parameter Input HIGH Voltage (IN, /IN) Input LOW Voltage (IN, /IN) Input HIGH Current VIN = 2.7V VIN = VCC Input LOW Current Input Clamp Voltage VIN = 0.5V IIN = -18mA Condition Min 2.0 0.8 20 100 -0.2 -1.2 Typ Max Units V V A A mA V
LVPECL OUTPUTS DC ELECTRICAL CHARACTERISTICS(4)
VCC = 3.3V 10% or 5V 10%; TA = -40C to +85C; RL = 50 to VCC-2V, or equivalent, unless otherwise stated. Symbol VOH VOL VOUT VDIFF-OUT Parameter Output HIGH Voltage Q, /Q Output LOW Voltage Q, /Q Output Voltage Swing Q, /Q Differential Output Voltage Swing Q, /Q See Figure 1a. See Figure 1b. Condition Note 2 Min VCC-1.080 VCC-1.830 600 1200 800 1600 Typ Max VCC -0.880 VCC -1.550 Units V V mV mV
Notes: 1. Permanent device damage may occur if the "Absolute Maximum Ratings" are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to the absolute maximum ratings conditions for extended periods may affect device reliability. 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. Package Thermal Resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. JB uses 4-layer JA in still-air unless otherwise stated. 4. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established. M9999-072005 hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
Precision Edge(R) SY89329V
AC ELECTRICAL CHARACTERISTICS (5)
VCC = 3.3V 10% or 5.0V 10%; TA = -40C to +85C, unless otherwise stated. Symbol fMAX tpd tJITTER Parameter Maximum Operating Frequency Propagation Delay IN-to-Q, /IN-to-/Q Random Jitter (RJ) Deterministic Jitter (DJ) Cycle-to-Cycle Jitter Total Jitter (TJ) tr, tf
Notes: 5. Measured with outputs loaded with 50 to VCC -2V unless otherwise stated. See "Timing Diagrams" section for definition of parameters. Highfrequency AC-parameters are guaranteed by design and characterization. 6. RJ is measured with a K28.7 comma detect character pattern, measured at fMAX. 7. DJ is measured at fMAX, with both K28.5 and 223-1 PRBS pattern 8. Cycle-to-cycle jitter definition: the variation of periods between adjacent cycles, Tn-Tn-1 where T is the time between rising edges of the output signal. 9. Total jitter definition: with an ideal clock input of frequency fMAX, no more than one output edge in 1012 output edges will deviate by more than the specified peak-to-peak jitter value.
Condition VOUT 350mV
Min
Typ
Max 800
Units MHz ps psRMS psPP psRMS psPP ps
100 Note 6 Note 7 Note 8 Note 9 At full output swing. 200
600 1 10 1 25 500
Rise / Fall Time (20% to 80%) Q, /Q
SINGLE-ENDED AND DIFFERENTIAL SWING
VOUT 800mV (Typ.)
VDIFF_OUT 1600mV (Typ.)
Figure 1a. Single-Ended Voltage Swing
Figure 1b. Differential Voltage Swing
TIMING DIAGRAM
IN tpd Q /Q
Figure 2. Timing Diagram
M9999-072005 hbwhelp@micrel.com or (408) 955-1690
4
Micrel, Inc.
Precision Edge(R) SY89329V
OUTPUT INTERFACE APPLICATIONS
VCC
VCC VCC
VCC
R1 ZO = 50 ZO = 50
R1
Z = 50 Z = 50 50 50 Rpd
VCC
VCC--2V
For 3.3V, R1 = 130, R2 = 82 For 5V, R1 = 83, R2 = 125
R2
R2
For 3.3V, Rpd = 50 For 5V, Rpd = 100
VCC 0.01F (optional)
Figure 3a. Parallel Thevenin-Equivalent Termination
VCC VCC R1 ZO = 50 VCC--2V R2
Figure 3b. Three-Resistor Termination
VCC = 3.3V, R1 = 130, R2 = 82 VCC = 5V, R1 = 83, R2 = 125
Figure 3c. Terminating Unused I/O
RELATED PRODUCT AND SUPPORT DOCUMENTATION
Part Number SY89322V Function 3.3V/5V Dual LVTTL/LVCMOS-to-Differential LVPECL Translator MLFTM Application Note HBW Solutions New Products and Applications Data Sheet Link www.micrel.com/product-info/products/sy89322v.shtml www.amkor.com/products/notes_papers/MLF_AppNote_0902.pdf www.micrel.com/product-info/products/solutions.shtml
M9999-072005 hbwhelp@micrel.com or (408) 955-1690
5
Micrel, Inc.
Precision Edge(R) SY89329V
8 LEAD MicroLeadFrame (MLF-8)
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
USA
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
http://www.micrel.com
The information furnished by Micrel in this data sheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2005 Micrel, Incorporated. M9999-072005 hbwhelp@micrel.com or (408) 955-1690
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