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Micrel
3.3V DUAL DIFFERENTIAL LVPECL-TO-LVTTL TRANSLATOR
Precision EdgeTM SY89323L
Precision EdgeTM SY89323L
FEATURES
s s s s s s s 3.3V power supply 1.9ns typical propagation delay Maximum frequency > 275MHz Differential LVPECL inputs 24mA LVTTL outputs Flow-through pinouts Internal input resistors: pull-down on IN, pull-down and pull-up on /IN s Q output will default LOW with inputs open s Available in ultra-small 8-pin MLFTM (2mm x 2mm) package Precision EdgeTM
DESCRIPTION
The SY89323L is a dual differential LVPECL-to-LVTTL translator. Because LVPECL (Low Voltage Positive ECL) levels are used, only +3.3V and ground are required. The SY89323L is functionally equivalent to the SY100EPT23L, but in an ultra-small 8-lead MLFTM package that features a 70% smaller footprint. The ultra-small package and the dual gate design of the SY89823L make it ideal for applications that require the translation of a clock and data signal in a minimal space. The inputs are compatible with 10k and 100k input levels and any standard differential LVPECL input referenced to a VCC of 3.3V.
BLOCK DIAGRAM
INO Q0 /INO
LVPECL
INI Q1 /INI
LVTTL
Precision Edge is a trademark of Micrel, Inc. MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.
Rev.: A Amendment: /1
1
Issue Date: December 2003
Micrel
Precision EdgeTM SY89323L
PACKAGE/ORDERING INFORMATION
Ordering Information
IN0 /IN0 /IN1 INI
1 2 8 7
VCC Q0 Q1 GND Part Number SY89323LMITR(Note 1)
Note 1. Tape and Reel.
Package Type MLF-8
Operating Range Industrial
Package Marking 323L
LVPECL
3 4
LVTTL
6 5
8-Pin MLFTM Ultra-Small Outline (2mm x 2mm)
PIN DESCRIPTION
Pin Number 1, 4 Pin Name IN0, IN1 Type 100k ECL Input Pin Function Differential PECL/ECL Input: Internal 75k pull-down resistor. If left open, pin defaults LOW. Q output will be LOW. See "Input Interface Applications" section for single-ended inputs. Differential PECL/ECL Input: Internal 75k pull-up and pull-down resistors. If left floating, pin defaults to VCC/2. When not used, this input can be left open. See "Input Interface Applications" section for single-ended inputs. Single-ended LVTTL Outputs: Default to LOW if IN inputs left open. Positive Power Supply: Bypass with 0.1F//0.01F low ESR capacitors. GND and exposed pad must be tied to ground plane.
2, 3
/IN0, /IN1
100k ECL Input
7, 6 8 5
Q0, Q1 VCC GND, Exposed Pad
LVTTL Output VCC Power Ground
2
Micrel
Precision EdgeTM SY89323L
Absolute Maximum Ratings(Note 1)
Supply Voltage (VCC) .................................. -0.5V to +3.8V Input Voltage (VIN) ......................................... -0.5V to VCC LVPECL Output Current (IOUT) Continuous ............................................................. 50mA Surge .................................................................... 100mA Input Current Source or sink current on IN, /IN .......................... 50mA Lead Temperature (soldering, 10 sec.) ................... +220C Storage Temperature (TS) ....................... -65C to +150C
Note 1.
Operating Ratings(Note 2)
Supply Voltage (VCC) ...................................... 3.0V to 3.6V Ambient Temperature (TA) ......................... -40C to +85C Package Thermal Resistance, Note 3 MLFTM (JA) Still-Air ................................................................. 93C/W 500lfpm ............................................................... 87C/W MLFTM (JB) Junction-to-Board ................................................ 60C/W
Permanent device damage may occur if 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 ABSOLUTE MAXIMUM RATlNG conditions for extended periods may affect device reliability. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.
Note 2. Note 3.
LVTTL DC ELECTRICAL CHARACTERISTICS
TA = -40oC to +85C, unless otherwise noted. Symbol VOH VOL ICC IOS Parameter Output HIGH Voltage Output LOW Voltage Power Supply Current Output Short Circuit Current VOUT = 0V Condition IOH = -3.0mA IOL = 24mA Min 2.0 -- -- -80 Typ -- -- -- -- Max -- 0.5 30 -240 Units V V mA mA
LVPECL DC ELECTRICAL CHARACTERISTICS
VCC = +3.3V10%; TA = -40oC to +85C, unless otherwise noted. Symbol VIH VIL VIHCMR VPP IIH IIL Parameter Input HIGH Voltage Input LOW Voltage Input HIGH Common Mode Range Minimum Peak-to-Peak Input Input HIGH Current Input LOW Current IN /IN
Note 4. VIHCMR (min) varies 1:1 with VEE, max varies 1:1 with VCC.
Condition
Min VCC-1.230 VCC-1.950
Typ - - -
Max VCC-0.735 VCC-1.475 VCC 150 - -
Units V V V mV A A A
Note 4
VEE+1.5 200 - 0.5 -300
- - -
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Micrel
Precision EdgeTM SY89323L
AC ELECTRICAL CHARACTERISTICS
VCC = +3.3V10%; CL = 20pF, TA = -40oC to +85C, unless otherwise noted. All parameters guaranteed by design and characterization. Symbol fMAX tpd tskpp tskew++ tskew- - tjitter tr tf
Note 1. Note 2. Note 3. Note 4. Note 5. Note 6. Note 7.
Parameter Maximum Input Frequency Propagation Delay Part-to-Part Skew Within-Device Skew Within-Device Skew Cycle-to-Cycle Total Jitter Output Rise/Fall Time 1.0V to 2.0V
Condition Notes 1, 2
Min 275 1.5
Typ -- -- -- -- --
Max -- 2.5 0.5 0.3 0.3 2 25
Units MHz ns ns ns ns psrms pspk-pk ns
Notes 3 Notes 4 Notes 5 Note 6 Note 7
-- -- --
0.5
--
1.0
Frequency at which guaranteed for functionality. VOH and VOL levels are guaranteed at DC only. The fMAX value is specified as the minimum guaranteed maximum frequency. Actual operational maximum frequency may be greater. Device-to-Device Skew considering HIGH-to-HIGH transitions at common VCC level. Within-Device Skew considering HIGH-to -HIGH transitions at common VCC level. Within-Device Skew considering LOW-to-LOW transitions at common VCC level. 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. Total jitter definition: with an ideal clock input of frequency fMAX, no more than one output edge in 1012 output edge will deviate by more than the specified peak-to-peak jitter value.
INPUT INTERFACE APPLICATIONS
+3.3V 1k IN +3.3V
VCC --1.3V 1.6k
Single-Ended Input (Terminating unused input)
4
Micrel
Precision EdgeTM SY89323L
8 LEAD ULTRA-SMALL EPAD-MicroLeadFrameTM (MLF-8)
Package EP- Exposed Pad
Die
CompSide Island
Heat Dissipation Heat Dissipation VEE Heavy Copper Plane VEE Heavy Copper Plane
PCB Thermal Consideration for 8-Pin MLFTM Package Package Notes: Note 1. Package meets Level 2 qualification. Note 2. All parts are dry-packaged before shipment. Note 3. Exposed pads must be soldered to a ground for proper thermal management.
MICREL, INC.
TEL
1849 FORTUNE DRIVE SAN JOSE, CA 95131
FAX
USA
+ 1 (408) 944-0800
+ 1 (408) 944-0970
WEB
http://www.micrel.com
The information furnished by Micrel in this datasheet 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) 2003 Micrel, Incorporated.
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