SINGLE SUPPLY 1:9 PECL/TTL-TO-PECL Micrel, Inc. Precision Edge® Precision SY100S811 Edge® SY100S811 FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ PECL version of popular ECLinPS E111 Low skew Guaranteed skew spec VBB output TTL enable input Selectable TTL or PECL clock input Single +5V supply Differential internal design Similar pin configuration to E111 PECL I/O fully compatible with industry standard Internal 75KΩ PECL input pull-down resistors Precision Edge® DESCRIPTION The SY100S811 is a low skew 1-to-9 PECL differential driver designed for clock distribution in new, highperformance PECL systems. It accepts either a PECL clock input or a TTL input by using the TTL enable pin TEN. When the TTL enable pin is HIGH, the TTL input is enabled and the PECL input is disabled. When the enable pin is set LOW, the TTL input is disabled and the PECL input is enabled. The device is specifically designed and produced for low skew. The interconnect scheme and metal layout are carefully optimized for minimal gate-to-gate skew within the device. Wafer characterization and process control ensure consistent distribution of propagation delay from lot to lot. Since the S811 shares a common set of “basic” processing with the other members of the ECLinPS family, wafer characterization at the point of device personalization allows for tighter control of parameters, including propagation delay. To ensure that the skew specification is met, it is necessary that both sides of the differential output are terminated into 50Ω, even if only one side is being used. ln most applications, all nine differential pairs will be used and, therefore, terminated. In the case where fewer than nine pairs are used, it is necessary to terminate at least the output pairs on the same package side (i.e. sharing the same VCCO as the pair(s) being used on that side) in order to maintain minimum skew. The VBB output is intended for use as a reference voltage for single-ended reception of PECL signals to that device only. When using V BB for this purpose, it is recommended that VBB is decoupled to VCC via a 0.01µF capacitor. ■ Available in 28-pin PLCC and SOIC packages BLOCK DIAGRAM Q0 Q0 Q1 EIN EIN Q1 0 Q2 Q2 Q3 TIN 1 Q3 Q4 Q4 TEN Q5 Q5 Q6 Q6 Q7 Q7 Q8 VBB Q8 Precision Edge is a registered trademark of Micrel, Inc. M9999-021407 [email protected] or (408) 955-1690 Rev.: H 1 Amendment: /0 Issue Date: February 2007 Precision Edge® SY100S811 Micrel, Inc. Ordering Information Q2 Q2 VCCO Q1 Q0 Q0 Q1 PACKAGE/ORDERING INFORMATION VEE 26 18 Q3 TEN 27 17 EIN VCC 28 Q3 Q4 VCCO EIN VBB 2 3 TIN 4 16 TOP VIEW PLCC J28-1 8 9 Operating Range Package Marking Lead Finish SY100S811ZC Z28-1 Commercial SY100S811ZC Sn-Pb SY100S811ZCTR(1) Z28-1 Commercial SY100S811ZC Sn-Pb SY100S811JC J28-1 Commercial SY100S811JC Sn-Pb 13 Q4 Q5 SY100S811JCTR(1) J28-1 Commercial SY100S811JC Sn-Pb 12 Q5 SY100S811ZH(2) Z28-1 Commercial SY100S811ZH with Pb-Free bar-line indicator NiPdAu Pb-Free SY100S811ZHTR(1, 2) Z28-1 Commercial SY100S811ZH with Pb-Free bar-line indicator NiPdAu Pb-Free SY100S811JZ(2) J28-1 Commercial SY100S811JZ with Pb-Free bar-line indicator Matte-Sn SY100S811JZTR(1, 2) J28-1 Commercial SY100S811JZ with Pb-Free bar-line indicator Matte-Sn 14 10 11 Q6 7 15 Q7 Q6 6 Q8 Q8 5 Q7 VCCO 1 Package Type Part Number 25 24 23 22 21 20 19 28-Pin PLCC (J28-1) VCC 1 28 EIN Notes: EIN 2 27 TEN 1. Tape and Reel. 2. Pb-Free package is recommended for new designs. VBB 3 26 VEE TIN 4 25 Q0 Q8 5 24 Q0 Q8 6 23 Q1 Q7 7 22 VCCO VCCO 8 21 Q1 Q7 9 20 Q2 Q6 10 19 Q2 Q6 11 18 Q3 Q5 12 17 Q3 Q5 13 16 Q4 Q4 14 15 VCCO TOP VIEW SOIC Z28-1 28-Pin SOIC (Z28-1) M9999-021407 [email protected] or (408) 955-1690 2 Precision Edge® SY100S811 Micrel, Inc. PIN NAMES TRUTH TABLE Function TEN EIN TIN Q EIN, EIN Pin Differential PECL Input Pair L L X L TIN TTL Input L H X H TEN TTL Input Enable H X L L Q0, Q0 – Q8, Q8 Differential PECL Outputs H X H H VBB VBB Output VCC PECL VCC (+5.0V) VEE PECL Ground (0V) PECL DC ELECTRICAL CHARACTERISTICS VCC = VCCO = +5.0V ± 5% TA = 0°C Symbol Parameter Reference(1) TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit 3.62 — 3.74 3.62 — 3.74 3.62 — 3.74 V VBB Output Voltage IIH Input HIGH Current — — 150 — — 150 — — 150 µA IIL Input LOW Current VIH VIL VOH VOL ICC 0.5 — — 0.5 — — 0.5 — — µA Input HIGH Voltage(1) 3.835 — 4.120 3.835 — 4.120 3.835 — 4.120 V Input LOW Voltage(1) 3.190 — 3.525 3.190 — 3.525 3.190 — 3.525 V Output HIGH Voltage(2) VCC –1025 VCC –955 VCC –870 VCC –1025 VCC –955 VCC –870 mV Output LOW Voltage(2) VCC –1890 VCC –1705 VCC –1620 VCC –1890 VCC –1705 VCC –1620 VCC –1890 VCC –1705VCC –1620 mV Supply(3) Power Current — 53 VCC –870 VCC –1025 VCC –955 65 — Notes: 1. VCC = VCCO = 5.0V 2. VIN = VIH (Max.) or VIL (Min.) Loading with 50Ω to VCC –2V. 3. All inputs and outputs open. M9999-021407 [email protected] or (408) 955-1690 3 53 65 — 60 74 mA Precision Edge® SY100S811 Micrel, Inc. TTL DC ELECTRICAL CHARACTERISTICS VCC = VCCO = +5.0V ± 5% TA = 0°C Symbol Parameter TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit VIH VIL Input HIGH Voltage Input LOW Voltage 2.0 — — — — 0.8 2.0 — — — — 0.8 2.0 — — — — 0.8 V V IIH Input HIGH Current(1),(2) — — — — 20 100 — — — — 20 100 — — — — 20 100 µA IIL Input LOW Current(3) — — –0.6 — — –0.6 — — –0.6 mA VIK Input Clamp Voltage(4) — — –1.2 — — –1.2 — — –1.2 V Unit Notes: 1. VIN = 2.7V 2. VIN = 5.0V 3. VIN = 0.5V 4. IIN = -18mA AC ELECTRICAL CHARACTERISTICS(1–6) VCC = VCCO = +5.0V ± 5% TA = 0°C Symbol Parameter TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. 430 330 350 — — — 630 730 950 430 330 350 — — — 630 730 950 430 330 350 — — — 630 730 950 Output(1) tPLH tPHL Propagation Delay to EIN (differential)(2) EIN (single-ended)(3) TIN tskew Within-Device skew(4) ps — 25 50 — 25 50 — 25 50 ps Minimum PECL Input Swing(5) 250 — — 250 — — 250 — — mV VCMR PECL Common Mode Range(6) –1.6 — –0.4 –1.6 — –0.4 –1.6 — –0.4 V tr tf Output Rise/Fall Times 20% to 80% 275 375 600 275 375 600 275 375 600 ps VPP Notes: 1. Part-to-part skew is defined as Max. — Min. value at the given temperature. 2. The differential propagation delay is defined as the delay from the crossing points of the differential input signals to the crossing point of the differential output signals. 3. The single-ended propagation delay is defined as the delay from the 50% point of the input signal to the 50% point of the output signal. 4. The within-device skew is defined as the worst case difference between any two similar delay paths within a single device. 5. VPP (min.) is defined as the minimum input differential voltage which will cause no increase in the propagation delay. The VPP (min.) is AC limited for the S811, as a differential input as low as 50mV will still produce full PECL levels at the output. 6. VCMR is defined as the range within which the VIH level may vary, with the device still meeting the propagation delay specification. The VIL level must be such that the peak-to-peak voltage is less than 1.0V and greater than or equal to VPP (min.). M9999-021407 [email protected] or (408) 955-1690 4 Precision Edge® SY100S811 Micrel, Inc. 28-PIN PLCC (J28-1) Rev. 03 M9999-021407 [email protected] or (408) 955-1690 5 Precision Edge® SY100S811 Micrel, Inc. 28-PIN SOIC .300" WIDE (Z28-1) Rev. 02 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB USA 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. © 2006 Micrel, Incorporated. M9999-021407 [email protected] or (408) 955-1690 6