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SEMICONDUCTOR
SYNERGY
DUAL DIFFERENTIAL PECL-to-TTL TRANSLATOR
ClockWorks™ SY10ELT23 ClockWorks™ SY100ELT23
SY10ELT23 SY100ELT23
FEATURES
s s s s s s s 3.0ns typical propagation delay <500ps typical output-to-output skew Differential PECL outputs 24mA TTL outputs Flow-through pinouts ESD protection of 2000V Available in 8-pin SOIC package
DESCRIPTION
The SY10/100ELT23 are dual differential PECL-to-TTL translators. Because PECL (Positive ECL) levels are used, only +5V and ground are required. The small outline 8-lead SOIC package and the low skew, dual gate design of the ELT23 makes it ideal for applications which require the tranlation of a clock and a data signal. The ELT23 is available in both ECL standards: the 10ELT is compatible with positive ECL 10H logic levels, while the 100ELT is compatible with positive ECL 100K logic levels.
PIN CONFIGURATION/BLOCK DIAGRAM
PIN NAMES
Pin Function TTL Outputs Differential PECL Inputs +5.0V Supply Ground
D0 D0 D1 D1
1 2 PECL 3 4 TTL
8 7 6 5
VCC Q0 Q1 GND
Qn Dn VCC GND
SOIC TOP VIEW
© 1998 Synergy Semiconductor Corporation
Rev.: F
Amendment: /0
5-232
Issue Date: August, 1998
SEMICONDUCTOR
SYNERGY
ClockWorks™ SY10ELT23 SY100ELT23
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VCC VI VO IO Tstore Tamb Paramter Power Supply Voltage PECL Input Voltage Voltage Applied to Output at HIGH State Current Applied to Output at LOW State Storage Temperature Operating Temperature Value –0.5 to +7.0 0V to VCC+0.5 –0.5 to +5.5 Twice the Rated IOL –65 to +150 –40 to +85 Unit V V V mA °C °C
TRUTH TABLE
D L H Open D H L Open Q L H L
NOTES: 1. 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.
DC ELECTRICAL CHARACTERISTICS(1)
VCC = V CC (Min.) to VCC (Max.)
TA = -40°C Symbol ICC Parameter Power Supply Current — 30 TA = 0°C — 30 TA = +25°C TA = +85°C Condition — — 30 — 30 mA Min. Max. Min. Max. Min. Max. Min. Max. Unit
NOTE: 1. Parametric values specified at:
5 volt Power Supply Range
100ELT23 Series: 10ELT23 Series
+4.2V to +5.5V. +4.75V to +5.5V.
AC ELECTRICAL CHARACTERISTICS(1)
VCC = V CC (Min.) to VCC (Max.)
TA = -40°C Symbol tPLH tPHL tskpp tskew++ tskew– – tr tf fMAX Parameter Propagation Delay D to Output Q Part-to-Part Skew(2,5) Within-Device Skew(3,5) Within-Device Skew(4,5) Output Rise/Fall Time 1.0V to 2.0V Maximum Input Frequency(5) 2.5 — — — — 160 3.5 0.5 0.3 0.3 1.5 — TA = 0°C 2.5 — — — — 160 3.5 0.5 0.3 0.3 1.5 — TA = +25°C TA = +85°C Condition CL = 50pF CL = 50pF CL = 50pF CL = 50pF CL = 50pF CL = 50pF 2.5 — — — — 160 3.5 0.5 0.3 0.3 1.5 — 2.5 — — — — 160 3.5 0.5 0.3 0.3 1.5 — ns ns ns ns ns MHz Min. Max. Min. Max. Min. Max. Min. Max. Unit
NOTES: 1. Parametric values specified at: 2. 3. 4. 5.
100ELT23 Series: 10ELT23 Series 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. All skew parameters are guaranteed but not tested.
5 volt Power Supply Range
+4.2V to +5.5V. +4.75V to +5.5V.
5-233
SEMICONDUCTOR
SYNERGY
ClockWorks™ SY10ELT23 SY100ELT23
TTL DC ELECTRICAL CHARACTERISTICS(1)
VCC = VCC (Min.) to VCC (Max.)
TA = -40°C Symbol VOH VOL IOS Parameter Output HIGH Voltage Output LOW Voltage Output Short Circuit Current Min. 2.5 2.0 — –80 Max. — — 0.5 –200 TA = 0°C Min. 2.5 2.0 — –80 Max. — — 0.5 –200 TA = +25°C Min. 2.5 2.0 — –80 Max. — — 0.5 –200 TA = +85°C Min. 2.5 2.0 — –80 Max. — — 0.5 –200 Unit V V V mA Condition IOH = –3.0mA IOH = –15mA IOL = 24mA VOUT = 0V
NOTE: 1. Parametric values specified at:
5 volt Power Supply Range
100ELT23 Series: 10ELT23 Series
+4.2V to +5.5V. +4.75V to +5.5V.
PECL DC ELECTRICAL CHARACTERISTICS(1)
VCC = VCC (Min.) to VCC (Max.)
TA = -40°C Symbol IIH IIL VCMR VPP VIH Parameter Input HIGH Current Input HIGH Current Common Mode Range Minimum Peak-to-Peak Input(2) Input HIGH Voltage(3) 10ELT 3770 100ELT 3838 VIL Input LOW Voltage(3) 10ELT 3050 100ELT 3190 — — — — 4110 4120 3500 3525 3830 3835 3050 3190 — — — — 4160 4120 3520 3525 3870 3835 3050 3190 — — — — 4190 4120 3520 3525 3940 3835 3050 3190 — — — — 4280 4120 mV 3555 3525 Min. — 0.5 2.2 200 Typ. — — — — Max. 150 — VCC — Min. — 0.5 2.2 200 TA = 0°C Typ. — — — — Max. 150 — VCC — — 0.5 2.2 200 TA = +25°C Min. Typ. — — — — Max. 150 — VCC — — 0.5 2.2 200 TA = +85°C Min. Typ. — — — — Max. 150 — VCC — Unit µA µA V mV mV
NOTES: 1. Parametric values specified at:
5 volt Power Supply Range
100ELT23 Series: 10ELT23 Series
+4.2V to +5.5V. +4.75V to +5.5V.
2. 200mV input guarantees full logic at output. 3. These values are for VCC = 5.0V. Level Specifications will vary 1:1 VCC.
PRODUCT ORDERING.