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See Technical Specifications

8A34012E-000NLG

Frequency Synthesizer IC 1GHz 4 72-VFQFN Exposed Pad

Manufacturer:

Renesas Technology Corp
Mfr.Part #:

8A34012E-000NLG
Datasheet:

8A34012E-000NLG Datasheet (PDF)
Programmable:

Not Verified
Type:

Frequency Synthesizer
PLL:

Yes
Input:

Clock

Email: [email protected]

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Tel: +852 95804164

8A34012E-000NLG General Description

The 8A34012 Line Card Synchronizer for IEEE 1588 regenerates and distributes ultra-low jitter; precision timing signals that are locked to IEEE 1588 and Synchronous Ethernet (SyncE) reference sources elsewhere in a system. The device can be used to precisely synchronize IEEE 1588 Time Stamp Units (TSUs) and SyncE ports on line cards or daughter cards that are connected with synchronization sources across backplanes or other media that introduce clock propagation delays. Digital PLLs (DPLLs) support hitless reference switching between references from redundant timing sources. The device can be used to actively measure and compensate for clock propagation delays across backplanes and across circuit boards to ensure the distribution of accurate time and phase with minimal time error between IEEE 1588 TSUs in a system. The device supports multiple independent timing channels for: IEEE 1588 clock synthesis; SyncE clock generation; jitter attenuation and universal frequency translation. Input-to-input, input-to-output and output-to-output phase skew can all be precisely managed. The device outputs ultra-low-jitter clocks that can directly synchronize SERDES running at up to 28Gbps; as well as CPRI/OBSAI, SONET/SDH and PDH interfaces and IEEE 1588 TSUs.

To see other devices in this product family, visit the ClockMatrix Timing Solutions page.

Key Features

Eight independent timing channels
Jitter output below 150fs RMS (typical)
Digital PLLs (DPLLs) lock to any frequency from 1kHz to 1GHz
DPLLs / Digitally Controlled Oscillators (DCOs) generate any frequency from 0.5Hz to 1GHz
DCO outputs can be aligned in phase and frequency with the outputs of any DPLL or DCO
IEEE 1588 Support:
- Precise (1ps) resolution for phase measurement and control
- All outputs/inputs can be configured to decode/encode PWM clock signals
- PWM can be used to transmit and receive embedded frame and sync pulses; as well as Time of Day (ToD) and other data
Reference monitors qualify/disqualify references depending on LOS, activity, frequency monitoring and/or LOS input pins
Automatic reference selection state machines select the active reference for each DPLL based on the reference monitors, priority tables, revertive / non-revertive and other programmable settings
Device requires a crystal oscillator or fundamental-mode crystal: 25MHz to 54MHz
The device can configure itself automatically after reset via:
- Internal Customer-programmable One-Time Programmable memory
- Standard external I2C EPROM via separate I2C Master Port

Specifications

Category	Integrated Circuits (ICs)Clock/TimingClock Generators, PLLs, Frequency Synthesizers	Series	-
Programmable	Not Verified	Type	Frequency Synthesizer
PLL	Yes	Input	Clock
Output	CML, HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL	Number of Circuits	4
Ratio - Input:Output	7:8	Differential - Input:Output	Yes/Yes
Frequency - Max	1GHz	Divider/Multiplier	Yes/No
Voltage - Supply	1.71V ~ 3.465V	Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Base Product Number	8A34012
Temp. Range	-40 to 85°C	Carrier Type	Reel