Clock and Data Recovery (CDR)
  • GN1113
  • 8.5 Gbps Fibre Channel Rx Repeater
  • GN1114
  • 8.5 Gb/s CDR with Equalizer Input and VCSEL Driver
  • GN2003S
  • 9.95 - 11.3 Gb/s Limiting Amplifier plus Clock and Data Recovery
  • GN2004S
  • 9.95 - 11.3 Gb/s Equalizer plus Clock and Data Recovery
  • GN2010D
  • Dual 8.5G & 10G CDR with integrated DML driver and limiting amplifier
  • GN2010E
  • Dual 8.5G & 10G CDR with intergrated EML driver and limiting amplifier
  • GN2013A
  • Limiting Amplifier plus Clock and Data Recovery IC with Manual Slice Level Adjust
  • GN2014A
  • XFP Tx Signal Conditioner with VCSEL Driver
Semtech GN2012

Semtech GN2012

Dual 8.5G & 10G CDR with integrated limiting amplifier

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The GN2012 is an integrated bi-directional CDR and limiting amplifier for XFP SONET, 10GBase-LR Ethernet and 8.5Gb/s Fibre Channel applications.

The transmit path consists of optional input equalization, a multi-rate Tx CDR, and a de-emphasis driver. The receive path is comprised of a limiting amplifier with programmable equalization, a multi-rate Rx CDR and output de-emphasis. Both transmit and receive directions offer the option for polarity invert, loopback, output mute, and programmable output equalization.

The GN2012 is a highly-programmable device, with features supporting DWDM applications. These include a programmable slice level adjust, programmable limiting amplifier peaking, and programmable sampling phase.

The GN2012 has an integrated analog-to-digital converter, which through the serial interface, provides digital diagnostic information on supply voltage, die temperature and eye monitors.

The GN2012 is configurable for multi-rate operation, and can support both 8G Fibre Channel, 10GbE and SONET OC-192 in a single device.

The GN2012 device is packaged in a small outline 5mm × 5mm 32-pin, high-frequency QFN package, with exposed pad. The GN2012 is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous sub-components are RoHS compliant.

Features


  • Dual CDR with 8.5Gb/s, 9.95-11.3Gb/s and 10.3-11.7Gb/s reference-free operation
  • Integrated limiting amplifier with sensitivity less than 7mV
  • Digital control through I2C or SPI interface
  • Programmable Jitter Transfer bandwidth
  • Bi-directional loopback
  • Polarity invert and output available in both transmit and receive direction
  • Mission-mode eye monitor
  • PRBS Generator and Checker
  • Programmable Limiting Amplifier Equalization
  • Programmable Transmit Input Equalization
  • Programmable Input Slice Level Adjust
  • Programmable LOS with adjustable threshold and hysteresis
  • Programmable Sampling Phase Adjust
  • Integrated analog to digital converter, which provides access to digital diagnostic information on supply voltage and die temperature
  • Single 3.3V supply (+5% / - 15%)
  • Programmable divide by 16 or 64 clock output from either transmit or receive recovered clocks
  • 5x5 32-pin QFN package
  • -40°C to 100°C case operation

Applications


  • XFP & SFP+ 10Gb/s SONET optical transceivers
  • XFP & SFP+ 10G Ethernet optical transceivers
  • XFP & SFP+ 8.5Gb/s Fibre Channel transceivers
  • SFP+ line card repeater
  • 40GbE CFP modules

Order Codes

Part Number Package
GN2012-INE3 32-QFN
 
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