SY05-HF RALTRON | Alldatasheet

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MULTI OUTPUT HIGH FREQUENCY HITLESS SWITCHING - SY05-HF Tel: 305 593-6033 !!!! Fax: 305-594-3973 !!!! e-mail: sales@raltron.com !!!! Internet: http://www.raltron.com SY05-HF Date: May 20, 2002

  • INTRODUCTION The SY05-HF is a high frequency clock that has been designed to be use at high speed Line Interface Cards in telecommunication products mainly related to STN-n or OC-n.
  • FEATURES √ A high frequency clock intended to be used at line cards for OC3 and OC12 (STM3 and STM12). √ Along with SY0001 or SY0010 provides complete timing solution. √ Provides very low jitter output signal. √ Performs hitless switching between two reference signals. √ Supports four timing modes: (1) Free-run, (2) Locked to Reference 1 (3) Locked to Reference 2, and (4) Loop back timing. √ Accepts reference inputs from two clock sources – 8KHz~77.76MHz √ Provides up to 4 LVPECL outputs and two LVCMOS outputs up to 777.6 MHz. (or alternatively 5 LVPECL outputs) √ Manual or Automatic selection between operating modes. √ Alarm and status signals. √ Complies with ITU-T Recommendations G.813, ETSI-ETS 300 462-4 and Bellcore GR-1244-CORE for Stratum 3 and 3E applications. √ Small dimensions of 1.80 x 1.80 x 0.429 inch. (Without Metal Cover)
  • APPLICATION The SY05-HF high frequency clock can be used in ATM, SDH, PDH, and SONET networks devices. It is designed for manufacturers of network equipment, especially Access Switches, Core Switches, Cross Connects, Digital Multiplexers- Exchangers, and SDH/SONET equipment. The SY05-HF is a timing solution for Line Interface Cards.

Figure 1. - The functional block diagram of SY05-HF

  • DESCRIPTION The SY05-HF synchronization module is a high frequency PLL that performs hitless switching plus additional features necessary for timing at high-speed Line Interface Cards. The functional block diagram is shown in figure 1. The SY05-HF receives two reference signals, usually 19.44MHz and using PLL synthesizer generates a high frequency signal necessary for transceivers or framers. The PLL that is complemented by high-speed logic that provide processing, switching between the timing modes, alarm and status messages and etc. A high quality VCXO provides very low jitter at the output. The additional outputs are provided using a divider. The module supports two operating modes: AUTO mode is the mode where all switching are done automatically and MANUAL mode is where unit will switch according to the two external control pins CON1 and CON2. CON1 CON2 Operational mode 0 0 Free-run (Unlocked) 1 0 Locked to EX REF 1 0 1 Locked to EX REF 2 1 1 Locked to TLB REF The module operates in the following four timing modes: 1) Free-run, 2) Locked to EX REF1, 3) Locked to EX REF2 and 4) Locked to TBL REF. Free-run it a mode the unit is unlocked to either of the inputs. The accuracy of the output frequencies in this mode is equal to the accuracy of free running VCXO. Locked to EX REF 1 is the mode where the output of the module is phase locked to input reference 1. Locked to EX REF 2 is the mode where the output of the module is phase locked to input reference 2, Locked to TBL REF is the mode where is the output of the module is phase locked to the signal used in Time Loop-back operation. MUX, COUNTERS CONTROL LOGIC PLL (PD+ LF) ÷÷÷÷ OUT 1 PECL OUT 3,4 & 5 PECL STATUS SIGNALS CU#1 STATUS SIGNALS CU#2 EX REF1 CNT1 CNT2 TLB REF ALARM & STATUS REV/NONREV VCXO OUT 2 CMOS EX REF2 AUTO/MAN

MULTI OUTPUT HIGH FREQUENCY HITLESS SWITCHING - SY05-HF Tel: 305 593-6033 !!!! Fax: 305-594-3973 !!!! e-mail: sales@raltron.com !!!! Internet: http://www.raltron.com

  • SPECIFICATIONS General Specifications Mechanical 1.82” (D) x 1.82” (W) x 0.518” (H) Metal Box Module on PCB Power Supply +3.3VDC Current Supply 200mA max Operating Temperature -40°C to 80°C Humidity 5% to 95% non-condensing Internal Oscillators VCXO or SAW Input Signals Number of Inputs 2 Input reference frequency 8KHz~77.76MHz Signal Level HCMOS 3.3V / 5V I/O tolerant Time Reference characteristics As output of SY0001/SY0010 Number of Outputs 6/5 Output 1 51.84MHz~777.600MHz . Signal type Low Voltage differential PECL Duty Cycle @ Output 1 50/50% ±5% Output 2 Buffered Input/Synch Out 1 Signal type HCMOS 3.3V / 5V I/O tolerant Low Voltage differential PECL (in cases of Synch Out 1) Duty Cycle @ Output 2 50/50% ±5% Output 3 Out 1 Divide by 2 Signal type Low Voltage differential PECL Duty Cycle @ Output 3 50/50% ±5% Output 4 Out 1 Divid by 4 Signal type Low Voltage differential PECL Duty Cycle @ Output 4 50/50% ±5% Output 5 Out 1 divid by 8 Duty Cycle @ Output 5 Low Voltage differential PECL Signal Type 50/50% ±5% Output 6 Buffered Input/Synch Out 1 (Complimentary) Low Voltage differential PECL (in cases of Synch Out 1 - Complimentary) Signal type HCMOS 3.3V / 5V I/O tolerant Output Signal Duty Cycle @ Output 6 50/50% ±5% Signal Quality Performance Jitter Tolerance Bellcore: GR-1244-R4-4, ITU-T: G.812 Phase Transient Tolerance Bellcore: GR-1244-R4-7 Jitter Generation and Transfer Bellcore: GR-1244-R5-7, ITU-T: G.812 Frequency Output Performance Pull-In Range ±50ppm MTIE Bellcore: GR-1244-R5-5, ITU-T: G.812 TDEV Bellcore: GR-1244-R5-4, ITU-T: G.812 Jitter @ OUT 1 <1ps RMS Within the BW 10kHz to 20MHz Phase Transient MTIE Mask GR1244 R5-14 Stability Free run ±50ppm Over operating temperature range

MULTI OUTPUT HIGH FREQUENCY HITLESS SWITCHING - SY05-HF Tel: 305 593-6033 !!!! Fax: 305-594-3973 !!!! e-mail: sales@raltron.com !!!! Internet: http://www.raltron.com

  • PIN ASSIGNMENT On the picture below it is shown the pin-out for the SY05-HF. For other pin-out requirement please contact the Raltron. Figure 3 – Bottom view VCC REF2 FR OUT 1 ALARM OUT 6 OUT 3 OUT 4 OUT 5 GND REF1 FR GND OUT 1 OUT 2 GND OUT 3 OUT 5 OUT 4 GND TLB REF REF 1 UL REF 2 UL REF 1 AL GND REF 1 HL AUTO/MA CNT 2 CNT 1 REF 2 HL RV/NRV REF 2 AL EX REF 2 EX REF 1 TLB REF TLB OK

MULTI OUTPUT HIGH FREQUENCY HITLESS SWITCHING - SY05-HF Tel: 305 593-6033 !!!! Fax: 305-594-3973 !!!! e-mail: sales@raltron.com !!!! Internet: http://www.raltron.com Pin # Name Description Signal Technology VL VH/ DC Voltage Min Typ Max Min Typ Max 1 +Vcc Positive Voltage Supply DC ----- ----- ----- 4.75 (3.135) 5.0 (3.3) 5.25 (3.465) 2 REF1 FR Reference 1 Freerun Input -> the signal High (“1” logic) FREERUN comes from Clock Unit 1 DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) 3 REF2 FR Reference 2 Freerun Input -> the signal High (“1” logic) FREERUN comes from Clock Unit 2 DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) 7 ALARM Alarm signal out -> the output is high when the module is unlocked (“1” logic) DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) HCMOS (3.3 Tolerable) ----- 0.5 (0.3)

8 OUT 2

Buffered reference or synchronized signal Output 2 -> a buffered external reference Signal (LVCMOS) or a buffered synchronized local oscillator signal. (LVPECL) LV/PECL Vcc-1.680 Vcc-1.620 Vcc-1.5 6 Vcc-1.085 Vcc-1.025 Vcc-0.88 5 HCMOS (3.3 Tolerable) ----- 0.5** (0.3)

9 OUT 6

Buffered reference or synchronized complimentary signal Output 6 -> a buffered external reference Signal (LVCMOS) or a buffered synchronized local oscillator signal. (LVPECL- complimentary). LV/PECL Vcc-1.180 Vcc-1.135 Vcc- 0.975 Vcc-1.085 Vcc-1.025 Vcc- 0.880 18 CNT 2 Control Input 2 -> the external input for selecting mode of the unit – see table. DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) 19 CNT 1 Control Input 1 -> the external input for selecting mode of the unit – see table. DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465)

20 AUTO/MAN Auto/Manual configuration input -> selection input for operating mode

Man=”0” ; Auto = “1” DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25** (3.465)

21 REF2 HL Reference 2 Holdover Input -> the signal High (“1” logic) HOLDOVER comes from Clock Unit

DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25** (3.465)

22 REF1 HL Reference 1 Holdover Input -> the signal High (“1” logic) HOLDOVER comes from Clock Unit

DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25** (3.465)

23 RV/NRV Revert / Non revert input-> selection input for revert feature

Revertive-“1” ; Non-Revertive = “0” DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25** (3.465)

25 REF2 AL

Reference 2 Alarm Input -> the signal High (“1” logic) ALARM OUT comes from Clock Unit 2 DC 0 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0** (3.3)

26 REF1 AL

Reference 1 Alarm Input -> the signal High (“1” logic) ALARM OUT comes from Clock Unit 1 DC 0 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0** (3.3)

27 EX REF 2 External Reference 2 Input -> the input signal from reference 2 HCMOS

(3.3 Tolerable) 0 ----- 0.5 (0.3) 4.5 (2.97) ---- ----

28 REF2 UL Reference 2 Unlocked Input -> the signal High (“1” logic) PLL UNLOCK comes from Clock

DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25** (3.465)

29 EX REF 1 External Reference 1 Input -> the input signal from reference 1 HCMOS

(3.3 Tolerable) 0 ----- 0.5 (0.3) 4.5 (2.97) ---- ----

30 REF1 UL Reference 1 Unlocked Input -> the signal High (“1” logic) PLL UNLOCK comes from Clock

DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) 33 TLB OK Time Loop back OK (nput -> When high (“1” logic) the loop back reference is valid for use DC 0 0.25 (0.15) 0.5 (0.3) 4.5 (2.97) 5.0 (3.3) 5.25 (3.465) For other pin-out configurations contact the factory! ** Indicates corresponding values to Vcc=5V

  • ORDERING INFORMATION Please contact factory with input/output options for P/N assiagnment.