Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsInterface ICsInterface IC - multiplexers uMAX 10

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General Description

The MAX4586/MAX4587 serial-interface, programmable,

4-to-1 channel multiplexers are ideal for multimedia

applications. They feature 65Ω on-resistance, 4Ω on-

resistance matching between channels, and 5Ω on-

resistance flatness. Additionally, they feature -83dB

off-isolation at 20kHz and -48dB off-isolation at 10MHz,

with -84dB crosstalk at 20kHz and -60dB crosstalk at

10MHz.

The MAX4586 uses a 2-wire, I

C™-compatible serial

interface; the MAX4587 uses a 3-wire, SPI™/QSPI™/

MICROWIRE™-compatible interface. Both devices are

available in 10-pin µMAX packages and are specified

for the extended -40°C to +85°C temperature range.

Applications

Cellular Phones and Accessories

Private Mobile Radios (PMRs)

PC Multimedia Audio/Video Routing

Industrial Equipment

Set-Top Boxes

Video Conferencing

High-End Audio Equipment

Features

♦ +2.7V to +5.5V Single-Supply Operation

♦ 4-to-1 Channel Multiplexer

♦ 65Ω (max) R

with +5V Supply

♦ Audio Performance

-83dB Off-Isolation at 20kHz

-84dB Crosstalk at 20kHz

♦ Video Performance

-48dB Off-Isolation at 10MHz

-60dB Crosstalk at 10MHz

♦ Serial Interface

2-Wire, I

C Compatible (MAX4586)

3-Wire, SPI/QSPI/MICROWIRE Compatible

(MAX4587)

MAX4586/MAX4587

Serially Controlled, 4-Channel

Audio/Video Multiplexers

________________________________________________________________

Maxim Integrated Products

NO4

NO3

NO2

( ) ARE FOR MAX4587 ONLY.

NO1

SCL(SCLK)

V+

SDA (DIN)

A (CS)

COM

TOP VIEW

GND

µMAX

MAX4586

MAX4587

19-1511; Rev 0; 8/99

PART

MAX4586EUB

MAX4587EUB

-40°C to +85°C

TEMP. RANGE PIN-PACKAGE

10 µMAX

Pin Configuration/

Functional Diagram

Ordering Information

C is a trademark of Philips Corp.

SPI/QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

Summary of content (12 pages)

PAGE 1
9-1511; Rev 0; 8/99 Serially Controlled, 4-Channel Audio/Video Multiplexers Features ♦ +2.7V to +5.
PAGE 2
MAX4586/MAX4587 Serially Controlled, 4-Channel Audio/Video Multiplexers ABSOLUTE MAXIMUM RATINGS V+ to GND ................................................................-0.3V to +6V COM and NO_ to GND (Note 1)...................-0.3V to (V+ + 0.3V) A, CS, SDA, DIN, SCL, and SCLK to GND...............-0.3V to +6V Continuous Current into Any Terminal..............................±20mA Peak Current into Any Terminal (pulsed at 1ms, 10% duty cycle).................................±40mA ESD per Method 3015.7.
PAGE 3
Serially Controlled, 4-Channel Audio/Video Multiplexers (V+ = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS VIDEO PERFORMANCE Off-Isolation (Note 7) VISO(V) VA = 1.0VRMS, fIN = 10MHz, RL = 50Ω, Figure 8 -48 dB Channel-to-Channel Crosstalk VCT(V) VA = 1.0VRMS, fIN = 10MHz, RS = 50Ω, Figure 8 -60 dB -0.
PAGE 4
MAX4586/MAX4587 Serially Controlled, 4-Channel Audio/Video Multiplexers ELECTRICAL CHARACTERISTICS—Single +3V Supply (V+ = +3V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.
PAGE 5
Serially Controlled, 4-Channel Audio/Video Multiplexers MAX4586/MAX4587 I/O INTERFACE CHARACTERISTICS (V+ = +2.7V to +5.25V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP DIGITAL INPUTS (SCLK, DIN, CS, SCL, SDA, A) V+ = 5V Input Low Voltage VIL V+ = 3V Input High Voltage VIH Input Hysteresis VHYST Input Leakage Current ILEAK Input Capacitance MAX 0.8 0.
PAGE 6
3-WIRE TIMING CHARACTERISTICS (Figures 3 and 4, V+ = +2.7V to +5.25V, fOP = 2.1MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL Operating Frequency CONDITIONS MIN V+ = 2.7V to 5.25V V+ = 4.75V to 5.25V fOP TYP MAX UNITS 2.
PAGE 7
Serially Controlled, 4-Channel Audio/Video Multiplexers SUPPLY CURRENT vs. TEMPERATURE 4.5 4.4 4.3 1 500 0 -1 400 tON 300 -2 200 -3 100 tOFF 4.2 4.1 4.0 -4 -55 -35 -15 5 25 45 65 85 105 125 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 2.5 4.5 5.0 TURN-ON/TURN-OFF TIMES vs. TEMPERATURE ON-LEAKAGE CURRENT vs. TEMPERATURE OFF-LEAKAGE CURRENT vs. TEMPERATURE ICOM(ON) @ VCOM = 4.5V VNO = FLOATING ICOM(ON) @ VCOM = 1.0V VNO = FLOATING 10 MAX4586/7-08A ICOM(OFF) @ VCOM = 1.0V VNO = 4.
PAGE 8
Serially Controlled, 4-Channel Audio/Video Multiplexers MAX4586/MAX4587 Pin Description PIN MAX4586 MAX4587 1 1 NAME COM Analog Switch Common Terminal 2 — A — 2 CS 3 — SDA Data Input of 2-Wire Serial Interface — 3 DIN Data Input of 3-Wire Serial Interface 4 4 V+ Supply Voltage 5 — SCL Clock Input of the 2-Wire Serial Interface — 5 SCLK Clock Input of the 3-Wire Serial Interface 6 6 NO1 Mux Normally Open Output 1 7 7 NO2 Mux Normally Open Output 2 8 8 GND Ground 9
PAGE 9
Serially Controlled, 4-Channel Audio/Video Multiplexers Table 2. Truth Table POWER-UP STATE LOGIC 0 OPEN x x 1 CLOSED D6 x x D5 x x D4 x x D3 NO4 to COM 10, 1 0 (Open) D2 NO3 to COM 9, 1 0 (Open) ADDRESS BIT (A) ADDRESS D1 NO2 to COM 7, 1 0 (Open) 0 0110 1010 D0 (LSB) NO1 to COM 6, 1 0 (Open) 1 0110 1110 COMMAND BIT SWITCH D7 (MSB) TERMINALS MAX4586/MAX4587 Table 1. Command-Bit Mapping NO_ SWITCH Table 3.
PAGE 10
MAX4586/MAX4587 Serially Controlled, 4-Channel Audio/Video Multiplexers 20% CS 20% 70% tCSW tCSH SCLK 20% tDH 20% tCSO tCH tCL tCSS 20% 20% 70% 70% 70% 20% tDS D6 D7 DIN D1 D0 Figure 3. 3-Wire Serial-Interface Timing Diagram of the command byte are “don’t care.” While shifting data, the device remains in its original configuration.
PAGE 11
Serially Controlled, 4-Channel Audio/Video Multiplexers ACKNOWLEDGE BIT 3V tR < 20ns tF < 20ns 50% SCL 0 MAX4586 MAX4587 V+ VOUT 10nF 2-WIRE V+ NO_ VNO_ 2 OR 3 tON VOUT COM VOUT VOUT - 0.5V 0 tOFF CL 35pF RL 3V DECODER/ CONTROLLER µP 0.5V 0 CS 50% 0 SERIAL INTERFACE VOUT GND 3-WIRE 0.5V 0 tON VOUT VOUT - 0.5V 0 CL INCLUDES FIXTURE AND STRAY CAPACITANCE. VOUT = VNO_ [RL / (RL + RON)] tOFF Figure 5.
PAGE 12
MAX4586/MAX4587 Serially Controlled, 4-Channel Audio/Video Multiplexers Test Circuits/Timing Diagrams (continued) V+ MAX4586 MAX4587 ACKNOWLEDGE BIT 10nF ACKNOWLEDGE BIT 3V SCL 0 V+ NO_ COM VOUT 2-WIRE VOUT CL 1000pF 2 OR 3 µP DECODER/ CONTROLLER ∆VOUT 3V CS SERIAL INTERFACE 3-WIRE GND DIN 0 3V 8-BIT COMMAND 0 0 ∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE-TRANSFER ERROR Q WHEN THE CHANNEL TURNS OFF. Q = ∆VOUT • CL ∆VOUT VOUT Figure 7.