PI2EQX3431 3.2Gbps, 1-port, SATA2/SAS ReDriver™ Features Description • Two 3.2Gbps differential signal pairs Pericom Semiconductor’s PI2EQX3431 is a low power, signal ReDriver. The device provides programmable equalization, to optimize performance over a variety of physical mediums by reducing Inter-Symbol Interference. PI2EQX3431 supports two 100-Ohm Differential CML data I/O’s between the Protocol ASIC to a switch fabric, across a backplane, or to extend the signals across other distant data pathways on the user’s platform. The integrated equalization circuitry provides flexibility with signal integrity of the signal before the ReDriver. A low-level input signal detection and output squelch function is provided for each channel. Each channel operates fully independantly. When the channels are enabled (CE=1) and operating, that channels input signal level (on xIN+/-) determines whether the output is active. If the input signal level of the channel falls below the active threshold level (Vth-) then the outputs are driven to the common mode voltage. In addition to signal conditioning, when CE = 0, the device enters a low power standby mode. • Adjustable Receiver Equalization • 100-Ohm Differential CML I/O’s • Independent Output Level Control • Input signal level detect and squelch for each channel • OOB Support • Low Power (100mW per Channel) • Stand-by Mode – Power Down State • VDD Operating Range: 1.5V to 1.8V • Packaging: — 20-TQFN (3.5x 4.5mm) Block Diagram F_EQ F_ES Pin Description (Top Side View) Signal Detection x_SD F_SD VDD F_IN+ CML CML x_OUT+ x_IN+ Equalizer F_INVDD R_OUT+ R_OUTR_SD Limiting Amp x_IN – x_OUT– x_EQ S_ES - Repeated 2 times - Power Management ReDriver is a trademark of Pericom Semiconductor. 4 5 6 1 20 GND 7 8 9 10 11 19 18 17 16 15 14 13 12 CE VDD F_OUT+ F_OUTVDD R_IN+ R_INNC R_EQ R_ES CE 2 3 10-0229 1 PS8950B 09/14/10 PI2EQX3431 3.2 Gbps, 1-Port, SATA2 /SAS ReDriver™ Pin Description Pin # Pin Name Type 19 CE Input 1 F_EQ Input 20 F_ES Input 2 17 16 4 5 Center Pad 12 F_SD F_OUT+ F_OUTF_IN+ F_INGND NC Output Description Chip Enable "high" provides normal operation. "Low" for power down mode. With internal 50K-Ohm pull-up resistor. Selection pin for equalizer of Fin. "Low" means 2.5dB, "high" means 6.5dB. With internal 50K-Ohm pull-up resistor. F-Channel external SATA. When logic 1, operates to the SATA i/m standard. When low, operates to SATAx/SAS. With internal 50K-ohm pull-up resistor. Channel Fin Signal detector output. Provides "high" when a signal is detected. Output CML output channel F with internal 50-Ohm pull up. 10 R_EQ Input 14 13 9 7 8 R_IN+ R_INR_SD R_OUT+ R_OUT- 11 R_ES Input 3,6,15,18 VDD Power Input CML input channel F with internal 50-Ohm pull down. GND - Supply ground. Do not connect Selection pin for equalizer of R_IN. "Low" means 2.5dB, "high" means 6.5dB. With internal 50K-Ohm pull-up resistor. Input CML input channel R with internal 50-Ohm pull down. Output Signal detector for Channel R_IN. Provides "high" when signal is detected. Output Positive CML output channel R with internal 50-Ohm pull up. R-channel External SATA "High" operates to the SATA i/m standard. "Low" means SATAx/SAS standard. With internal 50K-Ohm pull-up resistor. Positive supply voltage, 1.5V to 1.8V (±0.1V) Equalizer Selection x_EQ 0 1 Output CML Buffer CE 0 1 1 ReDriver is a trademark of Pericom Semiconductor. Compliance Channel [0:2.5dB] @ 1.6 GHz [4.5:6.5dB] @ 1.6 GHz x_ES X 0 1 10-0229 Common mode voltage VDD VDD-0.6V VDD-0.3V 2 Output Operation VDD 1200mV Swing 600mV Swing PS8960B 09/14/10 PI2EQX3431 3.2 Gbps, 1-Port, SATA2 /SAS ReDriver™ Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Storage Temperature......................................................... –65°C to +150°C Supply Voltage to Ground Potential.................................... –0.5V to +2.5V DC SIG Voltage...........................................................–0.5V to VDD +0.5V Current Output ................................................................-25mA to +25mA Power Dissipation Continous.......................................................... 500mW Operating Temperature............................................................... 0 to +70°C Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. AC/DC Electrical Characteristics (VDD = 1.4V to 1.9V) Symbol PSTANDBY PACTIVE tPD Parameter Supply Power Supply Power Latency Conditions CE = LVCMOS Low CE = LVCMOS High From input to output CML Receiver Input Differential Input Peak-toVRX-DIFFP-P peak Voltage AC Peak Common Mode VRX-CM-ACP Input Voltage ZRX-DC DC Input Impedance DC Differential Input ZRX-DIFF-DC Impedance Equalization JRS JRM Residual Jitter(1,2) Random Jitter(1,2) Signal Detector Performance VTH Threshold TEN Enable/disable time Min. Typ. Max. 0.1 0.3 1.0 V 150 40 50 60 80 100 120 Total Jitter 0.3 1.5 65(2) W ns 0.200 CE = 1 Units mV Ohm Ulp-p psrms 200 (3) mVppd 16 ns Notes 1. K28.7 pattern is applied differentially at point A as shown in Figure 1. 2. Total jitter does not include the signal source jitter. Total jitter (TJ) = (14.1 × RJ + DJ) where RJ is random RMS jitter and DJ is maximum deterministic jitter. Signal source is a K28.5 ± pattern (00 1111 1010 11 0000 0101) for the deterministic jitter test and K28.7 (0011111000) or equivalent for random jitter test. Residual jitter is that which remains after equalizing media-induced losses of the environment of Figure 1 or its equivalent. The deterministic jitter at point B must be from media-induced loss, and not from clock source modulation. JItter is measured at 0V at point C of Figure 1. 3. Using Compliance test at 1.5Gbps and 3Gbps. Also using OOB (OOB is formed by ALIGNp primitive or D24.3) test patterns at 1.5Gbps. The ALIGN primitive (K28.5+D10.2+D27.3 = 0011111010+0101010101+0010011100). The D24.3 = 00110011001100110011 ReDriver is a trademark of Pericom Semiconductor. 10-0229 3 PS8960B 09/14/10 PI2EQX3431 3.2 Gbps, 1-Port, SATA2 /SAS ReDriver™ AC/DC Electrical Characteristics Symbol Parameter Conditions Min. Typ. Max. Units CML Transmitter Output (100Ω differential) VDIFFP VTX-DIFFP-P Differential Swing | VTX-D+ - VTX-D- | Output Voltage Swing Differential Peak-to-peak Ouput Voltage VTX-DIFFP-P = 2 * | VTX-D+ - VTX-D- | x_ES = 1(1) 200 375 mVp-p x_ES = 0(1) 550 650 mVp-p x_ES = 1(1) 400 750 mV x_ES = 0(1) 1000 1300 mV x_ES = 0(1) VDD - 0.6 (1) VDD - 0.3 VTX-C Common-Mode Voltage tF, tR Transition Time tF-tR tF(tR) Transition Mismatch Time 20% to 80% ZOUT Output resistance Single ended ZTX-DIFF-DC DC Differential TX Impedance 80 100 120 Ohm CTX AC Coupling Capacitor 0.3 4.7 12 nF | VTX-D+ + VTX-D-|/2 x_ES = 1 V 150 ps 20 % 50 Ohm LVCMOS Control Pins 0.65 × VDD VIH Input High Voltage VIL Input Low Voltage 0.35 × VDD IIH Input High Current 250 IIL Input Low Current 500 VOH DC Output Logic High IOH = 4mA VOL DC Output Logic Low IOL = -4mA VDD 0.45 V µA V 0.4 Note: 1. When S_ES=0 select SATAx standard, When S_ES=1 select SATAi/m standard FR4 Signal Source A B SmA Connector SmA Connector Pericom PI2EQX3431 In C Out 30IN Figure 1. Test Condition Referenced in the Electrical Characteristic Table ReDriver is a trademark of Pericom Semiconductor. 10-0229 4 PS8960B 09/14/10 PI2EQX3431 3.2 Gbps, 1-Port, SATA2 /SAS ReDriver™ Packaging Mechanical: 20-contact TQFN (ZH) Notes: 1. All dimensions are in mm. Angles in degrees. 2. Coplanarity applies to the exposed pad as well as the terminals. 3. Refer JEDEC MO-241 4. Recommended land pattern is for reference only. 5. Thermal pad soldering area (mesh stencile design is recommended) DATE: 09/07/10 DESCRIPTION: 20-contact, Very Thin Quad Flat No-Lead (TQFN) PACKAGE CODE: ZH20 DOCUMENT CONTROL #: PD-2032 REVISION: B 10-0519 Ordering Information Ordering Number Package Code Package Description PI2EQX3431ZHE ZH Pb-Free and Green 20-contact TQFN Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free and Green • X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com ReDriver is a trademark of Pericom Semiconductor. 10-0229 5 PS8960B 09/14/10