The QLx4600-SL30 is a settable quad receive-side equalizer with extended functionality for advanced protocols operating with line rates up to 6.25Gb/s such as 4k video capable DisplayPort v1.2 (HBR1/2), InfiniBand (SDR and DDR) and 10GBase-CX4. The QLx4600-SL30 compensates for the frequency dependent attenuation of copper twin-axial cables, extending the signal reach up to 30m on 24AWG cable.
The small form factor, highly-integrated quad design is ideal for high-density data transmission applications including active copper cable assemblies. The four equalizing filters within the QLx4600-SL30 can each be set to one of 32 compensation levels, providing optimal signal fidelity for a given media and length. The compensation level for each filter can be set by either (a) three external control pins or (b) a serial bus interface. When the external control pins are used, 18 of the 32 boost levels are available for each channel. If the serial bus is used, all 32 compensation levels are available.
Operating on a single 1.2V power supply, the QLx4600-SL30 enables per channel throughputs of up to 6.25Gb/s while supporting lower data rates including 5, 4.25, 3.125 and 2.5Gb/s. The QLx4600-SL30 uses Current Mode Logic (CML) inputs/outputs and is packaged in a 4mmx7mm 46 Ld QFN. Individual lane LOS support is included for module applications.
Key Differences in Family| Product | Data
Rate
(Gb/s) | Number
of Tx
or Rx | Power
Consumption
(mW) | Maximum
Cable Length
(24AWG) (m) | Differential
O/P Swing
(MVP-P) | De-emphasis
(dB) | Equalization
(dB) | Differences Between
QLx Parts | Target Market |
|---|
|
| ISL36411 | 11 | 4x Rx | 440 | 20 | 650 | N/A | 30 | N/A | DP1.3, 40GbE, QSFP+ |
| ISL35411 | 11 | 4x Tx | 340 | 20 | 600 | 4 | N/A | N/A | DP1.3, 40GbE, QSFP+ |
| QLX4600-SL30 | 6.25 | 4x Rx | 312 | 30 | 600 | N/A | 30 | 4 pins for Loss of Signal (LOS) | DP1.2, SAS-6Gb, PCIe 2.0 |
| QLX4600-S30 | 6.25 | 4x Rx | 312 | 30 | 600 | N/A | 30 | 4 pins for Impedance Selection (= Power Down) | DP1.2, SAS-6Gb, PCIe 2.0 |
Key Features
- Supports data rates up to 6.25Gb/s
- Low power (78mW per channel)
- Low latency (<500ps)
- Four equalizers in a 4mmx7mm QFN package for straight route-through architecture and simplified routing
- Each equalizer boost is independently pin selectable and programmable
- Beacon signal support and line silence preservation
- 1.2V supply voltage
- Individual lane LOS support
Applications
- DisplayPort v1.2 active copper cable modules
- QSFP active copper cable modules
- InfiniBand (SDR and DDR)
- 10GBase-CX4
- XAUI and RXAUI, SAS (2.0)
- High-speed Printed Circuit Board (PCB) traces
Order Information| Part Number | Package Type | Weight(g) | Pins | MSL Rating | Peak Temp (°C) | RoHS Status |
|---|
|
| QLX4600LIQSR | 46 Ld QFN T+R | 0.07 | 46 | 1 | 260 | RoHS |
|
|
| QLX4600LIQT7 | 46 Ld QFN T+R | 0.07 | 46 | 1 | 260 | RoHS |
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