LMH12x9 12G UHD Long Reach Cable Equalizer with Integrated Reclocker

1 Features

Adaptive cable equalizer with integrated reclocker
Supports ST-2082-1(12G), ST-2081-1(6G), ST-424(3G), ST-292(HD), and ST-259(SD)
Compatible with DVB-ASI and AES10 (MADI)
Integrated referenceless reclocker locks to SMPTE rates: 11.88Gbps, 5.94Gbps, 2.97Gbps, 1.485Gbps, or divide-by-1.001 sub-rates, 270Mbps
Typical cable reach (Belden 1694A), PRBS-9 pattern:
- 100m at 11.88Gbps (4Kp60 UHD)
- 150m at 5.94Gbps (UHD)
- 220m at 2.97Gbps (FHD)
- 300m at 1.485Gbps (HD)
- 600m at 270Mbps (SD)
Typical cable reach (Belden 1694A), pathological pattern⁽¹⁾:
- 90m at 11.88Gbps (4Kp60 UHD)
- 140m at 5.94Gbps (UHD)
- 220m at 2.97Gbps (FHD)
- 300m at 1.485Gbps (HD)
- 600m at 270Mbps (SD)
On-chip 75Ω termination and return loss compensation network
Input cable equalizer and reclocker features:
- Improved cable reach with stress patterns
- Programmable CDR loop bandwidth settings
- 2:1 75Ω input mux (LMH1239 only)
Output driver features:
- 1:2 100Ω fanout output with de-emphasis
- Reclocked 75Ω loop-through output with cable fault detection (up to 600m)
Built-in PRBS generator and checker
Internal eye opening monitor
Single 2.5V supply
Low power: 350mW (typical)
Power Save mode: 70mW
Configurable by control pins, SPI, or SMBus interface
5mm × 5mm 32-pin WQFN package
Operating temperature range: –40°C to +85°C