PI2EQX3211B 3.2Gbps 2 Differential Channel Serial Re-driver with Equalization, Squelch and Flow-Through Pinout Features Description • SATA s/m output drive • Two 3.2Gbps differential channels • Adjustable Receiver Equalization • 100Ω Differential CML I/O’s • Input signal level detect and squelch for each channel • Low Power (100mW per Channel) • Stand-by Mode – Power Down State • VCC Operating Range: 1.8V ±0.1V • Packaging (Pb-free & Green): — 20-lead SSOP Pericom Semiconductor’s PI2EQX3211B is a low power, signal re-driver. The device provides programmable equalization, by using 2 select bits, EQA and EQB, to optimize performance over a variety of physical mediums by reducing Inter-Symbol Interference. PI2EQX3211B supports two 100 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 re-driver. Whereas the integrated de-emphasis circuitry provides flexibility with signal integrity of the signal after the re-driver. 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 (EN=1) and operating, that channels input signal level (on xI+/-) determines whether the output is enabled. If the input level of the channel falls below the active threshold level (Vth-) then the outputs are driven to the common mode voltage. In addition to providing signal re-conditioning, Pericom’s PI2EQX3211B also provides power management Stand-by mode operated by the Enable pin. Pin Description Block Diagram Signal Detection EQA VDD CML AI+ CML AI- xO+ xl+ Equalizer GND Limiting Amp VDD xO- xl- BO+ BO- EQx GND -Repeated 2 times- EN 07-0193 EQB 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 EN VDD AO+ AOGND VDD BI+ BIGND NC Power Management 1 PS8901A 08/23/07 PI2EQX3211B 3.2Gbps 2 Differential Channel Serial Re-driver Equalization, Squelch and Flow-Through Pinout Pin Description Pin # Pin Name I/O Description 3 AI+ I Positive CML Input Channel A with internal 50Ω pull down 4 AI- I 18 AO+ O 17 AO- O Negative CML Input Channel A with internal 50Ω pull down Positive CML Output Channel A with internal 50Ω pull up to VDD during normal operation and 2kΩ when EN=0. Drives to output common mode voltage when input is <VTH–. Negative CML Output Channel A with internal 50Ω pull up to VDD during normal operation and 2kΩ when EN=0. Drives to output common mode voltage when input is <VTH–. 14 BI+ I Positive CML Input Channel B with internal 50Ω pull down 13 BI- I 7 BO+ O 8 BO- O 20 EN I 5, 9, 12, 16 1 10 2, 6, 11, 15, 19 GND EQA EQB VDD PWR I I PWR Negative CML Input Channel B with internal 50Ω pull down Positive CML Output Channel B with internal 50Ω pull up to VDD during normal operation and 2kΩ when EN=0. Drives to output common mode voltage when input is <VTH–. Negative CMLOutput Channel B with internal 50Ω pull up to VDD during normal operation and 2kΩ when EN=0. Drives to output common mode voltage when input is <VTH–. EN is the enable pin. A LVCMOS high provides normal operation. A LVCMOS low selects a low power down mode. Supply Ground Selection pins for equalizer (see Equalizer Selection Table) w/ 50KΩ internal pull up 1.8V Supply Voltage Equalizer Selection EQx 0 1 07-0193 Compliance Channel [0:2.5dB] @ 1.6 GHz [4.5:6.5dB] @ 1.6 GHz 2 PS8901A 08/23/07 PI2EQX3211B 3.2Gbps 2 Differential Channel Serial Re-driver Equalization, Squelch and Flow-Through Pinout 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 VCC +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 = 1.8 ±0.1V) Symbol Ps Parameter Supply Power Latency Conditions EN = LVCMOS Low EN = 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 VTH−SD ZRX-DIFF-DC ZRX-DC Signal Detect Threshold Min. Typ. Max. 0.1 0.3 2.0 V 150 50 DC Differential Input Impedance DC Input Impedance W ns 0.200 EN = High Units mV 200 80 100 120 40 50 60 Ω Equalization JRS Residual Jitter(1,2) JRM Random Jitter(1,2) Total Jitter Deterministic jitter 0.3 0.2 1.5 Ulp-p psrms 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. 07-0193 3 PS8901A 08/23/07 PI2EQX3211B 3.2Gbps 2 Differential Channel Serial Re-driver Equalization, Squelch and Flow-Through Pinout FR4 Signal Source A B C Pericom PI2EQX3211B SmA Connector SmA Connector In Out 30IN Figure 1. Test Condition Referenced in the Electrical Characteristic Table AC/DC Electrical Characteristics (TA = 0 to 70˚C) Symbol Parameter Conditions Min. Typ. Max. Units CML Transmitter Output (100Ω differential) VDIFFP Output Voltage Swing Differential Swing | VTX-D+ - VTX-D- | 200 375 mVp-p VTX-DIFFP-P Differential Peak-to-peak Ouput Voltage VTX-DIFFP-P = 2 * | VTX-D+ - VTX-D- | 400 750 mV VTX-C (2) Common-Mode Voltage | VTX-D+ + VTX-D- | / 2 tF, tR Transition Time 20% to 80% (1) ZOUT Output resistance Single ended ZTX-DIFF-DC CTX VDD - 0.3 V 150 ps 40 50 60 Ω DC Differential TX Impedance 80 100 120 Ω AC Coupling Capacitor 75 200 nF LVCMOS Control Pins VIH 0.65 × VDD Input High Voltage VIL Input Low Voltage 0.35 × VDD IIH Input High Current 250 IIL Input Low Current 500 V μA Note: 1. Using K28.7 (0011111000) pattern) . 2. The parameter is determined by device characterization, and is not production tested 07-0193 4 PS8901A 08/23/07 PI2EQX3211B 3.2Gbps 2 Differential Channel Serial Re-driver Equalization, Squelch and Flow-Through Pinout Packaging Mechanical: 20-lead SSOP (H20) $/#5-%.4#/.42/,./ 0$ 2%6)3)/.$ $!4% -AX 3%!4).' 0,!.% "3# -AX -IN Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Notes: 1. Controlling dimensions in millimeters 2. Ref.: JEDEC MS-150B/AE 3. Package Outline Exclusive of Mold Flash and Metal Burr $%3#2)04)/.0IN-ILWIDE33/0 0!#+!'%#/$%( Ordering Information Ordering Number Package Code Package Description PI2EQX3211BHE H Pb-Free and Green 20-lead SSOP 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 07-0193 5 PS8901A 08/23/07