|Package | PIN:||RTV | 32|
|Temp:||I (-40 to 85)|
- 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 Reclocker Locks to SMPTE Rates of 11.88 Gbps, 5.94 Gbps, 2.97 Gbps, 1.485 Gbps or Divide-by-1.001 Sub-Rates and 270 Mbps
- Integrated Eye Opening Monitor (EOM)
- Dual Differential Output Cable Drivers
- On-Chip 75-Ω Termination and Return Loss Compensation Network
- Adaptive PCB Input Equalizer
- Reclocked 100-Ω Loop-Back Output
- Automatic Slew Rate Control on 75-Ω Outputs
- Automatic Pre-Emphasis and Output Amplitude on 75-Ω Outputs
- Programmable De-Emphasis and Output Amplitude on 100-Ω Output
- Polarity Inversion on 75-Ω and 100-Ω Outputs
- Automatic Power Save in Absence of Input Signal
- Power Consumption: 25 mW (Typical)
- Power-Down Control Through ENABLE Pin
- Single 2.5-V Supply
- Power Consumption: 305 mW (Typical)
- Programmable Through Pins, SPI, or SMBus Interface
- –40°C to +85°C Operating Temperature Range
- 5-mm × 5-mm, 32-pin WQFN Package
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Texas Instruments LMH1228RTVT
LMH1228 device is a 12G UHD-SDI low power dual output cable driver with integratedreclocker. It supports SMPTE video rates up to 11.88 Gbps, enabling UHD video for 4K/8Kapplications. With a wide range clock-and-data recovery (CDR) circuit, the on-chip reclockerautomatically detects and locks to all SMPTE video rates up to 11.88 Gbps. The additional reclocked100-Ω driver output on the host-side can be used for monitoring or signal distributionpurposes.
The on-chip reclocker attenuates high-frequency jitter and fully regenerates the datausing a clean, low-jitter clock. The reclocker has a built-in loop filter and does not require anyinput reference clock. The LMH1228 also has an internal eye opening monitor and a programmable pinfor CDR lock indication, input signal detect, or hardware interrupts to support system diagnosticsand board bring-up.
The LMH1228 is powered from a single 2.5-V supply. It is offered in a small footprint 5mm × 5 mm 32-pin WQFN package. The LMH1228 is pin compatible with the LMH1208 (12G Dual CableDriver).