IS31CG1110-QFLS2-TR

IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver GENERAL DESCRIPTION The CG1110 is a high-performance MIMO/SISO dual port differential line driver designed to work in broadband PLC system. It contains two pairs of wideband, high-voltage, current mode feedback amplifiers. The line driver can operate on single supply from +10V to +13.2V and retains its bandwidth and linearity over the complete full-scale supply range. The supply current can be set using a resistor on the IBIAS pin. The device has two separate disable control pins (ENB_AB and ENB_CD) for each differential amplifier to allow TDM operation. These logic pins are internally pulled high, so floating these inputs will put the device in shut down mode. An internal input VCM generator maximizes the dynamic range and reduces the number of PCB components in the application circuit. The device has built-in reliable thermal shut-down protection circuit and will be forced into shut-down mode typically when the internal junction temperature reaches +165°C. FEATURES              Single +10V to +13.2V supply Fixed voltage gain of 25dB (AV=18 V/V) 100MHz -3dB closed-loop signal bandwidth High linearity MTPR of 50dBc 350mA max. output driver capability 16.4Vpp-diff linear output drive into 34Ω 25mA quiescent current per port Control pins for enable/disable Internal VCM for input signal biasing Fast shut down / power up – less than 1us Thermal shut-down & output short protection Supports 20-pin, 4mmx4mm QFN Package -40°C to +85°C operating ambient temperature APPLICATIONS  Power Line Communications (PLC)  Smart Grid application  Smart Home applications (IPTV, Security Cameras, etc.)  High Voltage and High Current Driving The CG1110 is available in 4mmx4mm thermally enhanced 20 pin QFN package. The device is specified for operation over the full -40°C to +85°C ambient temperature range. Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 1 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver BLOCK DIAGRAM VCC INA CFA‐A OUTA CFA‐B OUTB INB ENB_AB IBIAS IBIAS & OTP ENB_CD INC CFA‐C OUTC CFA‐D OUTD IND GND Figure 1 Block diagram Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 2 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver VCC NC GND NC VCC PIN OUT (TOP VIEW) 1 OUTA OUTC NC NC CG1110 NC IND INC ENCD IBIAS ENAB INA OUTD INB OUTB Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 NC THERMAL PAD TOP VIEW 3 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver PIN DESCRIPTION PIN NUMBER NAME I/O 1 OUTA O Amplifier-A output 2, 3, 13, 14, 17, 19 NC - No internal connection 4 OUTB O Amplifier-B output 5 ENB_AB I Port-AB enable/disable control 6 INB I Amplifier-B non-inverting input 7 INA I Amplifier-A non-inverting input 8 IBIAS O Bias current adjustment pin 9 INC I Amplifier-C non-inverting input 10 IND I Amplifier-D non-inverting input 11 ENB_CD I Port-CD enable/disable control 12 OUTD O Amplifier-D output 15 OUTC O Amplifier-C output 16, 20 VCC PW Power supply 18 GND PW Ground EPAD THERMAL PAD I/O Connect to the ground Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 DESCRIPTION 4 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 1. Operating Ranges 1.1 Absolute Maximum Ratings Symbol Characteristics Rating Unit VCC Supply Voltage VCC to GND -0.3 to +13.5 V VINA, VINB, VINC, VIND Voltage on input pins GND+3 to VCC-3 V VENB Voltage on control pin -0.3 to +6 V VIBIAS Voltage on BIAS pin -0.3 to +4 V IINA, IINB, IINC, IIND Current into any input pins -5 to +5 mA IOUTA, IOUTB, IOUTC, IOUTD DC continuous output current 100 mA TAmbient Operating ambient temperature -40 to 85 ˚C TJunction Operating junction temperature 150 ˚C ILatch-up Latch up current 300 mA AB, 1.2 VENB CD ESD Ratings ESD Rating Value Unit Human Body Model (Tested per JESD22-A114F). ±2000 V Charge Device Model (Tested per JESD22-C101E) ±1000 V 1.3 Typical Operating Ranges Symbol Characteristics Rating Unit VCC Supply Voltage +10 to +13.2 V VINABD, VINCDD Differential input voltage at Av=18 V/V 0 to ±1 V Control pin to GND 0 to +6 V TAmbient Operating temperature -40 to 85 ˚C TJunction Junction temperature -40 to 150 ˚C VENB AB, VENB CD Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 5 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 2. Electrical Characteristics DC Characteristics VCC = 12V, Ta = 25˚C, AV = 18 V/V, RT = 3.9Ω, RL-DIFF = 34Ω, CL = 50pF, RIBIAS = 0Ω, ENB_AB = ENB_CD = 0V, unless otherwise specified. Referred to typical test and application circuit. Characteristics Symbol Test condition Min Typ Max Unit Supply Characteristics Supply Voltage VCC 10 12 13.2 V Quiescent Current – MIMO (Dual output port enable, 4X CFA) IMIMO ENB_AB = 0V, ENB_CD = 0V - 46 TBD mA Quiescent Current – SISO (Single output port enable, 2X CFA) ISISO ENB_AB = 3.3V, ENB_CD = 0V, or ENB_AB = 0V, ENB_CD = 3.3V - 24 TBD mA Quiescent Current - Shut Down ISD ENB_AB = 3.3V, ENB_CD = 3.3V - 1.5 TBD mA Input Offset Voltage VOS_IN Voltage difference from INA to INB or from INC to IND Output Offset Voltage VOS_OUT Voltage difference from OUTA to OUTB or OUTC to OUTD Non-inverting Input Voltage Noise eN Input Characteristics -5 0 5 mV -100 0 -100 mV fc = 1MHz *Note 1 - 8 - nV/√Hz Note 1 - 4.5 - pA/√Hz Non-inverting Input Current Noise iN+ fc = 1MHz * Differential Input Impedance RINP Measured at VCC/2 10 12.5 15 Logic Input High Voltage VIH ENB_AB, ENB_CD inputs 2.2 - - V Logic Input Low Voltage VIL ENB_AB, ENB_CD inputs - - 0.8 V Logic Input High Current IIH ENB_AB = ENB_CD = 3.3V - -3.5 - μA Logic Input Low Current IIL ENB_AB = ENB_CD = 0V - 30 - μA VCMIN Referenced to + VCC/2 -3 0 +3 V Differential Voltage Gain AV (OUTA-OUTB)/(INA-INB), (OUTC-OUTD)/(INC-IND) 17 18 19 V/V Output Short Current IOS RS = 1Ω shorts to VCC or GND - - 1.5 A Common-mode Rejection Ratio (Differential Output referred) CMRRDM fc = 1MHz, 0.1VPP TBD 65 - dB PSRR to Differential Output (Output referred) PSRRDMO fc = 1MHz, 0.1VPP TBD 65 - dB PSRR to Common-mode Output (Output referred) PSRRCM fc = 1MHz, 0.1VPP TBD 45 - dB - 165 - Common-mode Input Range Non-Inverting Input Pins KΩ Output Characteristics Thermal Protection Thermal Shut-down Temperature Note 1 * TSD ˚C Note 1: Obtained from design simulation and characterization, not tested. AC Characteristics VCC = 12V, Ta = 25˚C, AV = 18 V/V, RT = 3.9Ω, RL-DIFF = 34Ω, CL = 50pF, RBIAS = 0Ω, ENB_AB = ENB_CD = 0V, unless otherwise specified. Referred to typical test and application circuit. Characteristics Symbol Test condition Min Typ Max Unit Output AC Characteristics -3dB Small-signal Bandwidth SSBW VIN = 0.2 VPP-DIFF - 100 - MHz -3dB Large-signal Bandwidth LSBW VIN = 0.8 VPP-DIFF - 80 - MHz Slew Rate SR VIN = 2.0 VPP-DIFF - 1600 - V/μs Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 6 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 2nd Harmonic Distortion HD2 3rd Harmonic Distortion HD3 MTPRSTEP Multi-Tone Power Ratio MTPRFLAT Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 fC = 10MHz, VIN = 0.2 VPP-DIFF - -66 - dBc fC = 10MHz, VIN = 0.8 VPP-DIFF - -60 - dBc fC = 10MHz, VIN = 0.2 VPP-DIFF - -60 - dBc fC = 10MHz, VIN = 0.8 VPP-DIFF - -51 - dBc Full power from 1MHz to 30MHz, 100kHz tone spacing, PLINE = 15.5dBm, PAR = 15dB -50 - - dB 30dB power back off from 30MHz to 50MHz, 100kHz tone spacing, PLINE = 15.5dBm, PAR = 15dB -20 - - dB 20dB power back off from 1MHz to 50MHz, 100kHz tone spacing, PLINE = 15.5dBm, PAR = 15dB -50 - - dB 7 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 3. Typical Performance Characteristics VCC = 12V, Ta = 25˚C, AV =18 V/V, RT = 3.9Ω, RL-DIFF = 34Ω, CL = 50pF, RIBIAS = 0Ω, ENB_AB = ENB_CD = 0V, unless otherwise specified. (See typical test circuit). Frequency Response vs RIBIAS Output Impedance Frequency Response vs RIBIAS PSRR to Common-mode Output PSRR to Differential Output Quiescent Current vs Temperature Quiescent Current vs RIBIAS ` Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 8 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 4. Application Information The CG1110 is a differential line driver designed for PLC line driver application. The core architecture comprises dualpairs (four CFAs) high speed current feedback amplifiers. 4.1 Typical Applications Typical Application and Test Circuit 4.2 Input Common Mode Voltage The analog inputs of the CG1110 are internally dc biased to VCM=VCC/2 and therefore input pins to CG1110 must be AC coupled using serial 0.1µF ceramic capacitors. 4.3 Bias Current Control The CG1110 is designed with a biasing current adjustment that lowers the quiescent operating current using an off-chip resistor (RIBIAS) that must be placed between IBIAS pin and GND. Using a resistor larger than 0Ω can reduce the quiescent current of the line driver and improve efficiency. To ensure optimized performance, it is recommended to connect the IBIAS pin to ground. 4.4 Operation State Control ENB_AB and ENB_CD pins are used as logic inputs to control the line driver operating states. These logic pins are designed to pull high initially, so floating these inputs will put the device in power down mode. ENB_AB ENB_CD Description 0 0 Port AB enable, port CD enable, MIMO mode 0 1 Port AB enable, port CD disable, SISO mode 1 0 Port AB disable, port CD enable, SISO mode 1 1 Port AB disable, port CD disable, Shut down the various power modes and associated logic states. In the power-down mode, the output of the amplifier goes into a high impedance state. 4.5 Thermal Shutdown The device has thermal shutdown circuitry that protects the amplifier from damage. The thermal protection circuitry disables the device when the junction temperature reaches approximately 165°C and forces the device to cool. When the junction temperature cools to approximately 140°C, the device is automatically re-enabled. Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 9 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 4.6 Power Dissipation and Thermal Resistance In order to avoid performance degeneration and device damage, the junction temperature of the device is not allowed to be higher than 150°C for long time. The junction temperature given the ambient temperature is: ⋅ Where, is the absolute junction temperature (°C), is the ambient temperature (°C), junction to ambient (+44°C/W), is the power dissipation in the line driver (W). 4.7 is thermal resistance for PCB Design Guidelines 4.7.1 Input Considerations: It is recommended to keep PCB trace length as short as possible and minimize the input parasitic capacitance as much as possible to avoid any ringing or oscillation. 4.7.2 Output Considerations: The line driver has internal simple current limit protection mechanism but using 3.9Ω series output termination resistors is still recommended to limit output short current. To avoid DC current flow between the two outputs, the AC coupling capacitors are needed in series with the output. Minimize parasitic capacitance to any ground and power plane for output pins and traces to prevent oscillation. TVS diodes connected to VCC and GND should be used to absorb the transient energy and clamp the transient voltages of the line driver outputs. To maintain stability, the capacitance of these diodes should be less than 150pF. 4.7.3 IBIAS Considerations: The bias resistor RIBIAS connected to the IBIAS pin must be routed far away from the components of the signal input network in order to avoid any high frequency signal coupling into the IBIAS pin. 4.7.4 Thermal pad Considerations: The thermal pad, EPAD, must be soldered to the PCB pad and enough vias need to be used connecting to the bottom plane to dissipate heat out of the package. 4.7.5 Power Supply Use 10µF and 0.1µF paralleling decoupling capacitors between power supply and ground. These decoupling capacitors must be close to the power supply pins; minimizing the distance from the pins to high frequency 0.1μF decoupling capacitors. Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 10 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 5. Package Outline Note: The dimension is specified in mm. Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 11 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 6. Ordering Information Order Part No. Package QTY/Reel IS31CG1110-QFLS2-TR QFN-20 2500 Remark Copyright © 2021 Lumissil Microsystems. All rights reserved. Lumissil Microsystems reserves the right to make changes to this specification and its products at any time without notice. Lumissil Microsystems assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products. Lumissil Microsystems does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless Lumissil Microsystems receives written assurance to its satisfaction, that: a.) the risk of injury or damage has been minimized: b.) the user assumes all such risks; and c.) potential liability of Lumissil Microsystems is adequately protected under the circumstances Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 12 IS31CG1110 PRELIMINARY MIMO/SISO Differential Line Driver 7. Revisions History Revision 0A Detail Information Initial release Date 2021.02.02 . Lumissil Microsystems – www.lumissil.com Preliminary Rev. 0A, 02/02/2021 13