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N4982A Datasheet(PDF) 2 Page - Keysight Technologies |
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N4982A Datasheet(HTML) 2 Page - Keysight Technologies |
2 / 8 page 02 | Keysight | N4982A Clock Recovery Unit - Data Sheet – Low jitter output clock – Low power dissipation – Precision connectors – Excellent signal quality – Single low voltage DC supply N4982A Clock Recovery Units Description The Keysight Technologies, Inc. N4982A series of clock recovery units (CRU) cover data rates from 19 to 36 Gb/s and 39.8 to 44 Gb/s with three different model options. The CRU modules utilize silicon germanium (SiGe) technology and offer both small size, and low power consumption. Applications The N4982A CRU modules can be used to extract a low jitter clock for 40G and 100G applications such as IEEE 802.3, OIF/CEI 25/28G, 32G Fiberchannel, 25G Infiniband, etc. The CRU’s have sufficient bandwidth to operate both at common base rates, e.g. 25.78125 Gb/s, as well as in applications that require added bandwidth for forward error correction (FEC), e.g. 27.95, 30.9375 Gb/s. Broadband test systems will benefit from the low power dissipation, precision connectors and excellent signal quality. Specifications at 33 °C case temperature Parameter Model-option number Units N4982A-R19 N4982A-R25 N4982A-R28 Data input Bit rate 19.0 to 26.0 39.8 to 44.0 25.3 to 32.0 27.9 to 36.0 Gb/s Amplitude 100 to 1400 150 to 1400 50 to 1400 50 to 1400 mV p-p Reference clock input Type Half-rate Quarter-rate Quarter-rate Quarter-rate Frequency 9.5 to 13.0 9.95 to 11.0 6.325 to 8.0 6.975 to 9.0 GHz Amplitude 200 to 1400 50 to 1400 50 to 1400 mV p-p Clock output Type Full-rate Half-rate Half-rate Half-rate Frequency 19.0 to 26.0 19.9 to 22.0 12.65 to 16.0 13.95 to 18.0 GHz Amplitude (typical) > 150 > 320 > 150 mV p-p Jitter RMS (nominal) 0.5 0.5 0.5 ps DC supply Voltage –3.6 V dc –3.3 V dc –3.3 V dc V Current (nominal) 270 220 220 mA Absolute maximum ratings Parameter Value Supply voltage (VEE) –3.8 V Control voltage applied to SELV and LOCk Max: +0.05 V Min: VEE - 0.05 V Ref input power (REF) +10 dBm DC input voltage to DIN, REF and CKO ±1 V Operating Temperature 0 to +70 °C Storage Temperature –50 to +125 °C Table 1. Table 2. Compliant with RoHS WEE requirements |
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