MAX2991 Power-Line Communications (PLC) Integrated Analog Front-End Transceiver General Description Features The MAX2991 power-line communication analog front- S Optimized to Operate with the MAX2990 PLC end (AFE) is a state-of-the-art integrated circuit that Baseband delivers high integration and superb performance, while S Integrated Band Select Filter, AGC, and 10-Bit reducing the total system cost. The MAX2991 is the first ADC for Rx Path AFE specifically designed for OFDM (orthogonal fre- S Integrated Wave-Shaping Filter, Programmable quency division multiplexing) modulated signal transmis- Predriver Gain, and 10-Bit DAC for Tx Path sion over power lines. Operating in the 10kHz to 490kHz band, the programmable filters allow compliance with S Variable Sampling Rate Up to 1.2Msps CENELEC, FCC, and ARIB standards using the same S Built-In 60dB Dynamic Range AGC and DC Offset device. Cancellation The MAX2991 transceiver provides two main paths: S Programmable Filters Operate in the CENELEC, transmit (Tx) path and receive (Rx) path. The transmit FCC, and ARIB Frequency Bands path injects an OFDM modulated signal into the AC or S Single 3.3V Power Supply DC line. The transmit path is composed of a digital IIR S 70mA Typical Supply Current (Half-Duplex Mode) filter, digital-to-analog converter (DAC), followed by a lowpass filter, and a preline driver. The receiver path is S Extended Operating Temperature Range for the signal enhancement, filtering, and digitization of the received signal. The receiver is composed of a low- Applications pass and a highpass filter, a two-stage automatic gain Automatic Meter Reading control (AGC), and an analog-to-digital converter (ADC). Home Automation The integrated AGC maximizes the dynamic range of the signal up to 60dB, while the lowpass filter removes any Heating Ventilation and Air Conditioning (HVAC) out-of-band noise, and selects the desired frequency Building Automation band. The ADC converts the enhanced and amplified Industrial Automation input signal to a digital format. An integrated offset can- Lighting Control cellation loop minimizes the DC offset. Sensor Control and Data Acquisition (SCADA) The MAX2991, along with the MAX2990 PLC baseband modem, delivers the most Functional Diagramscost-effective data communi- Remote Monitoring and Control cation solution over power-line networks in the market. Security Systems/Keyless Entry The MAX2991 is specified over the -40NC to +85NC Smart Grid temperature range and is available in a 48-pin LQFP package. Ordering Information PART TEMP RANGE PIN-PACKAGE MAX2991ECM+ -40NC to +85NC 48 LQFP +Denotes a lead(Pb)-free/RoHS-compliant package. Typical Application Circuit MAX2990 MAX2991 MCU Tx BLOCK HOST LINE LINE AC POWER APPLICATION INTERFACE PHY DRIVER COUPLER LINE AFE C Pin Configurations appear at end of data sheet. Rx BLOCK Functional Diagrams continued at end of data sheet. UCSP is a trademark of Maxim Integrated Products, Inc. For pricing, delivery, and ordering information, please contact Maxim Direct 19-5125 Rev 0 1/10 at 1-888-629-4642, or visit Maxims website at www.maxim integrated.com. AVAILABLEMAX2991 Power-Line Communications (PLC) Integrated Analog Front-End Transceiver ABSOLUTE MAXIMUM RATINGS V to GND ..........................................................-0.3V to +3.9V Operating Temperature Range .......................... -40NC to +85NC DD All Other Inputs/Outputs .......................................-0.3V to +3.9V Junction Temperature .....................................................+150NC Continuous Power Dissipation (T = +70NC) Storage Temperature Range .......................... -60NC to +150NC A 48-Pin LQFP (derate 25mW/NC above +70NC) ..........1535mW Lead Temperature (soldering, 10s) ................................+300NC Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS (V = 3.3V, V = 0V, T = -40NC to +85NC, unless otherwise noted. Typical values are at T = +25NC.) DD GND A A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC CHARACTERISTICS (f = 1200ksps) S Supply Voltage V 3 3.3 3.6 V DD Rx mode 70 100 Supply Current I mA DD Tx mode 36 50 High-Level Input Voltage V 2 V IH Low-Level Input Voltage V 0.8 V IL High-Level Output Voltage V Source 5mA 2.4 V OH Low-Level Output Voltage V Sink 5mA 0.4 V OL Input Leakage Current I -5 +5 FA IL Shutdown Current I Global power-down mode +5 FA SHDN AC CHARACTERISTICS (f = 1200ksps) S TRANSMITTER DAC Resolution 10 Bits DAC Sampling Rate 1200 ksps DAC Integral Nonlinearity INL Q2 LSB DAC Differential Nonlinearity DNL Q0.5 LSB FCC, ARIB Q5.0 CEN A Q3.0 Lowpass Filter Cutoff-Frequency % Accuracy Narrowband Q5.0 Full band Q5.0 FCC, ARIB 470 CEN A 90 Lowpass Filter -3dB Cutoff kHz Frequency (Note 1) Narrowband (Note 2) 134 Full band 560 FCC, ARIB 28 CEN A 28 Includes digital IIR Stopband Attenuation dB filter Narrowband 28 Full band 28 Predriver gain = 0dB, Output-Voltage Swing 1.5 V P-P frequency = 50kHz, 50I single-ended Total Cascaded IM3 IM3 In-band (Note 3) -56 -50 dBc Predriver Gain Range 16 dB 2 Maxim Integrated