AD807A-155BRZ Product Details
The AD807A-155BRZ provides the receiver functions of data quantization, signal level detect, clock recovery and data retiming for 155 Mbps NRZ data. The device, together with a PIN diode/preamplifier combination, can be used for a highly integrated, low cost, low power SONET OC-3 or SDH STM-1 fiber optic receiver.
The receiver front end signal level detect circuit indicates when the input signal level has fallen below a user adjustable threshold. The threshold is set with a single external resistor. The signal level detect circuit 3 dB optical hysteresis prevents chatter at the signal level detect output.
The PLL has a factory trimmed VCO center frequency and a frequency acquisition control loop that combine to guarantee frequency acquisition without false lock. This eliminates a reliance on external components such as a crystal or a SAW filter, to aid frequency acquisition.
The AD807A-155BRZ acquires frequency and phase lock on input data using two control loops that work without requiring external control. The frequency acquisition control loop initially acquires the frequency of the input data, acquiring frequency lock on random or scrambled data without the need for a preamble. At frequency lock, the frequency error is zero and the frequency detector has no further effect. The phase acquisition control loop then works to ensure that the output phase tracks the input phase. A patented phase detector has virtually eliminated pattern jitter throughout the AD807.
The device VCO uses a ring oscillator architecture and patented low noise design techniques. Jitter is 2.0 degrees rms. This low jitter results from using a fully differential signal architecture, Power Supply Rejection Ratio circuitry and a dielectrically isolated process that provides immunity from extraneous signals on the IC. The device can withstand hundreds of millivolts of power supply noise without an effect on jitter performance.
The user sets the jitter peaking and acquisition time of the PLL by choosing a damping factor capacitor whose value determines loop damping. CCITT G.958 Type A jitter transfer requirements can easily be met with a damping factor of 5 or greater.
Device design guarantees that the clock output frequency will drift by less than 20% in the absence of input data transitions. Shorting the damping factor capacitor, CD, brings the clock output frequency to the VCO center frequency.
The AD807A-155BRZ consumes 140 mW and operates from a single power supply at either +5 V or –5.2 V.
- Meets CCITT G.958 Requirements for STM-1 Regenerator—Type A
- Meets Bellcore TR-NWT-000253 Requirements for OC-3
- 155 Mbps Clock Recovery and Data Retiming
- Accepts NRZ Data, No Preamble Required
- Phase-Locked Loop Type Clock Recovery—No Crystal Required
- Quantizer Sensitivity: 2 mV
- Output Jitter: 2.0 Degrees RMS
- Level Detect Range: 2.0 mV to 30 mV
- Single Supply Operation: +5 V or –5.2 V
- Low Power: 170 mW
- 10 KH ECL/PECL Compatible Output
- Package: 16-Lead Narrow 150 mil SOIC
- Supply Voltage Max
- 3.6 V
- Supply Voltage Min
- 3 V
- Maximum Power Dissipation
- 170 mW
- Factory Pack Quantity
- Supply Current
- 39.5 mA
AD807 Technical Documentation/Data sheet
AD807A-155BRZ Related Products
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Estimated Delivery Time: Jun 22 - Jun 27 days (choose Expedited at checkout).
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1.We provide 90 days warranty.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
- Q: How does Jotrin guarantee that AD807A-155BRZ is the original manufacturer or agent of AD?
- We have a professional business development department to strictly test and verify the qualifications of AD original manufacturers and agents. All AD suppliers must pass the qualification review before they can publish their AD807A-155BRZ devices; we pay more attention to the channels and quality of AD807A-155BRZ products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of AD807A-155BRZ chips? Including AD original factory information, Timers & Support Products application, AD807A-155BRZ pictures?
- You can use Jotrin's intelligent search engine, or filter by Timing IC & Clock IC ; Clock & Data Recovery/Retiming category, or find it through Analog Devices, Inc Information page.
- Q: Are the AD's AD807A-155BRZ price and stock displayed on the platform accurate?
- The AD's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for AD807A-155BRZ, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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- Q: What is the process for returns or replacement of AD807A-155BRZ?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment.
If there is something wrong with the AD807A155BRZ we delivered, we will accept the replacement or return of the AD807A-155BRZ only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of AD807A-155BRZ.
(3)The AD807A-155BRZ is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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