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MAX4550 Dataheets PDF



Part Number MAX4550
Manufacturers Maxim
Logo Maxim
Description Clickless Audio/Video Analog Crosspoint Switches
Datasheet MAX4550 DatasheetMAX4550 Datasheet (PDF)

19-1397; Rev 0; 10/98 KIT ATION EVALU E L B AVAILA Serially Controlled, Dual 4x2, Clickless Audio/Video Analog Crosspoint Switches General Description Features o Selectable Soft Switching Mode for Clickless Audio Operation o 43Ω Typical On-Resistance (±5V Supplies) o 5Ω Typical On-Resistance Matching Between Channels o 4Ω Typical On-Resistance Flatness o 0.014% Total Harmonic Distortion with 1kΩ Load o -110dB Off-Isolation at 20kHz -78dB Off-Isolation at 4MHz o -95dB Crosstalk at 20kHz -54dB C.

  MAX4550   MAX4550


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19-1397; Rev 0; 10/98 KIT ATION EVALU E L B AVAILA Serially Controlled, Dual 4x2, Clickless Audio/Video Analog Crosspoint Switches General Description Features o Selectable Soft Switching Mode for Clickless Audio Operation o 43Ω Typical On-Resistance (±5V Supplies) o 5Ω Typical On-Resistance Matching Between Channels o 4Ω Typical On-Resistance Flatness o 0.014% Total Harmonic Distortion with 1kΩ Load o -110dB Off-Isolation at 20kHz -78dB Off-Isolation at 4MHz o -95dB Crosstalk at 20kHz -54dB Crosstalk at 4MHz o Serial Interface 2-Wire, Fast-Mode, I2C-Compatible (MAX4550) 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4570) o Four Auxiliary Outputs that Extend µP Ports o Single-Supply Operation: +2.7V to +5.5V Dual-Supply Operation: ±2.7V to ±5.5V MAX4550/MAX4570 The MAX4550/MAX4570 serial-interface, programmable, dual 4x2 audio/video crosspoint switches are ideal for multimedia applications. Each device contains two identical crosspoint switch arrays, each with four inputs and two outputs. To improve off-isolation, use the additional crosspoint inputs SA and SB as shunts. Each output is selectively programmable for clickless or regular mode operation. A set of internal resistive voltagedividers supplies DC bias for each output when using AC-coupled inputs. Additionally, four auxiliary outputs control additional circuitry via the MAX4550/MAX4570’s 2-wire or 3-wire interface. The MAX4550/MAX4570 feature 80Ω on-resistance, 10Ω on-resistance matching between channels, 5 Ω onresistance flatness, and 0.014% total harmonic distortion. Additionally, they feature off-isolation of at least -110dB in the audio frequency range and -78dB at 4MHz, with -95dB crosstalk in the audio frequency range and -54dB at 4MHz. The MAX4550 uses a 2-wire I 2C-compatible serial interface, while the MAX4570 uses a 3-wire SPI™/QSPI™ or MICROWIRE™-compatible serial interface. These parts are available in 28-pin SSOP and wide SO packages and are tested over either the commercial (0°C to +70°C) or extended (-40°C to +85°C) operating temperature range. Pin Configuration TOP VIEW SB 1 NO3A 2 NO3B 3 BIASH 4 28 SA 27 NO2B 26 NO2A 25 V24 V+ Applications Set-Top Boxes PC Multimedia Boards High-End Audio Systems Video Conferencing Systems Ordering Information PART MAX4550CAI MAX4550CWI MAX4550EAI MAX4550EWI MAX4570CAI MAX4570CWI MAX4570EAI MAX4570EWI TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 28 SSOP 28 Wide SO 28 SSOP 28 Wide SO 28 SSOP 28 Wide SO 28 SSOP 28 Wide SO BIASL 5 NO4A 6 NO4B 7 V+ 8 COM2A 9 Q0 10 COM2B 11 Q1 12 A0 (CS) 13 SCL (SCLK) 14 MAX4550 MAX4570 23 NO1B 22 NO1A 21 GND 20 COM1A 19 Q3 18 COM1B 17 Q2 16 A1 (DOUT) 15 SDA (DIN) I2C is a trademark of Philips Corp. SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. SO/SSOP ( ) ARE FOR MAX4570. Functional Diagram appears at end of data sheet. 1 ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Serially Controlled, Dual 4x2, Clickless Audio/Video Analog Crosspoint Switches MAX4550/MAX4570 ABSOLUTE MAXIMUM RATINGS V+ to GND ............................................................... -0.3V to +6V V+ to V-................................................................-0.3V to +13.2V V- to GND .................................................................+0.3V to -6V NO_ _ , S_, BIAS_, COM_ _, Q_, A1, DOUT to GND (Note 1)...............................................(V- - 0.3V) to (V+ + 0.3V) CS, SCLK, DIN, SCL, SDA, A0 to GND ....................-0.3V to +6V Continuous Current into Any Terminal..............................±10mA Peak Current, NO_ _ , S_ , COM_ _ (pulsed at 1ms, 10% duty cycle max) ..........................±40mA Continuous Power Dissipation (TA = +70°C) 28-Pin SSOP (derate 9.52mW/°C above +70°C) .........762mW 28-Pin Wide SO (derate 12.5mW/°C above +70°C) ...1000mW Operating Temperature Ranges MAX4550C_I/MAX4570C_I ...............................-0°C to +70°C MAX4550E_I/MAX4570E_I ..............................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C Note 1: Signals on NO_ _, S_, or COM_ _ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maximum current rating. 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. ANALOG ELECTRICAL CHARACTERISTICS—Dual Supplies (V+.


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