A product Line of Diodes Incorporated PI3EQX6741ST 3.3V, 1-port, SATA Gen 3i ReDriver with Adjustable Equalization/Pre-Emphasis Features Description Supports SATA Gen 3i. e PTh I3EQX6741ST is a low power, signal SATA Gen 3i 6Gbps ReDriver. The device provides programmable equal - Two 6Gbps differential signal pairs ization and output emphasis, to optimize performance over a 100 Differential CML I/Os variety of physical mediums by reducing Inter-Symbol Interfer- Input signal level detect and squelch for each channel ence. PI3EQX6741ST supports two 100 Differential CML data OOB Support I/Os between the Protocol ASIC to a switch fabric, across a back- plane, or to extend the signals across other distant data pathways Automatic HDD Rate detection for output swing/emphasis on the users platform. setting e iTh ntegrated equalization circuitry provides flexibilitywith Termination detect indication signal integrity of the signal before the ReDriver. Power saving mode control to Host or HDD A low-level input signal detection and output squelch function Adjustable Receiver Equalization is provided for each channel. Each channel operates fully inde- Selectable Output Pre-emphasis and Swing Control pendently. When the channels are enabled (EN=1) and operating, High impedance I/O termination in standby mode that channels input signal level (on xI+/-) determines whether the ESD +/-8kV output is active. If the input signal level of the channel falls below Low Power Operation: 254mW typical the active threshold level (Vth-) then the outputs are driven to the common mode voltage. Auto-Slumber Mode: 36mW typical Termination Detect indication (TDet A or TDET B ) provides HDD unplugged: 3.6mW indication when the load is connected ie HDD or Host. This can Power down Stand-by Mode: 0.7mW max be used as control to go into power saving mode by either the host Supply Voltage: 3.3V 10% or HDD. o o Industrial Temperature Range: -40 C to 85 C In addition to signal conditioning, when EN = 0, the device Packaging: 20-TQFN (4x4mm) enters a low power standby mode. Applications Notebook, desktop, docking station, Set Top Box, Server Block Diagram Workstation, Data Storage Signal Detection Pin Diagram (Top Side View) TDet V BIAS = 1.05V CML 50 50 CML xO+ xl+ Limiting Equalizer 20 19 18 17 16 Amp AI+ 1 15 AO+ xl- xO- AI- AO- 2 14 GND TDet B 3 13 TDet A - Repeated 2 times - BI- BO- 4 12 BO+ 5 11 BI+ 6 7 8 9 10 x EQ Power Control EN Management Circuit x EM TDet EN All trademarks are property of their respective owners. www.diodes.com 01/04/17 17-0005 1 V DD NC B EQ EN B EM TDeT EN A EM A EQ V NC DDA product Line of Diodes Incorporated PI3EQX6741ST Pin Description Standard Pin Mode Pin Name Type Description Output emphasis adjustment for channel A. (See Configuration Table) 9 A EM Input Digital control with 200K pull-up resistor. Channel A Equalization adjustment is active. (See Configuration Table) 17 A EQ Input Tri-level input pin with 100K pull-up and 100K pull-down resistors. 1 AI+ CML input forward channel A with internal 50 pull-up resistors connected to VBIAS Input 2 AI- (100 differential). CML output channel A with internal 50 pull-up resistors connected to VBIAS (100 15 AO+ Output 14 AO- differential). Output emphasis adjustment for channel B. (See Configuration Table) 8 B EM Input Digital control with 200K pull-up resistor. Tri-level input pin with 100K pull-up and 100K pull-down resistors. (See Configuration 19 B EQ Input Table) 11 BI+ CML input return channel B with internal 50K pull-up, resistor connected to VBIAS Input 12 BI- (100 differential). 5 BO+ Positive CML output channel B with internal 50 pull-up resistor connected to VBIAS Output 4 BO- (100 differential). Chip EnableHig provides normal operation.Lo for power down mode. With internal 7 EN Input 200K pull-up resistor. Center Pad GND GND Supply ground. 10, 20 V Power 3.3V supply voltage 10% DD Termination detect output for channel B-Active Low, open drain. Low: HDD Termination 3 TDet B Output present. High: HDD Termination NOT present. Termination detect output for channel A-Active Low, open drain. Low: HDD Termination 13 TDet A Output present. High: HDD Termination NOT present. Termination Detect Enable (200K internal pull-up resistor) 18 TDet EN Input High: Enable Termination Detect for eSATA application or hot plug Device application Low: Disable Termination Detect for internal SATA application. 6, 16 NC No Connection internally. All trademarks are property of their respective owners. www.diodes.com 01/04/17 17-0005 2