MAX4570CWI ,Serially Controlled / Dual 4x2 / Clickless Audio/Video Analog Crosspoint Switchesapplications. Each device contains two' 43Ω Typical On-Resistance (±5V Supplies)identical crosspoin ..
MAX4571CAI ,Serially Controlled / Clickless Audio/Video Switchesfeatures 35Ω max on-resistance, -90dB audio' 35Ω max On-Resistanceoff-isolation at 20kHz, -60dB vid ..
MAX4571CEI ,Serially Controlled / Clickless Audio/Video SwitchesMAX4571–MAX457419-1404; Rev 1; 4/99Serially Controlled, Clickless Audio/Video Switches
MAX4571EAI ,Serially Controlled / Clickless Audio/Video SwitchesApplicationsPART TEMP. RANGE PIN-PACKAGESet-Top Boxes Audio SystemsMAX4571CEI 0°C to +70°C 28 QSOPP ..
MAX4571EWI ,Serially Controlled / Clickless Audio/Video Switchesapplications. EachAudio Operationdevice
MAX4572CEI ,Serially Controlled / Clickless Audio/Video Switchesapplications. -50dB Video Off-Isolation at 10MHzThe MAX4571/MAX4573 contain eleven SPST switches,' ..
MAX8677AETG+ ,1.5A Dual-Input, USB/AC Adapter Charger and Smart Power SelectorFeaturesThe MAX8677A is an integrated 1-cell Li+ charger and♦ Complete Charger and Smart Power Sele ..
MAX8677AETG+T ,1.5A Dual-Input, USB/AC Adapter Charger and Smart Power Selectorfeatures include overvoltage protection (OVP),charge status and fault outputs, power-OK monitors,Or ..
MAX8677CETG , 1.5A Dual-Input USB/AC Adapter Charger and Smart Power Selector
MAX8677CETG+ ,1.5A Dual-Input USB/AC Adapter Charger and Smart Power SelectorApplications+Denotes a lead-free package.PDAs, Palmtops, and Wireless Handhelds**EP = Exposed paddl ..
MAX8677CETG+T ,1.5A Dual-Input USB/AC Adapter Charger and Smart Power SelectorFeaturesThe MAX8677C is an integrated 1-cell Li+ charger and♦ Complete Charger and Smart Power Sele ..
MAX8678ETE+ ,White LED Charge Pump with 1.1W Audio AmplifierApplications PART PIN-PACKAGE TOP MARK PKG CODECell Phones and Smartphones16 Thin QFNMAX8678ETE+ AF ..
MAX4550CAI-MAX4570CWI
Serially Controlled / Dual 4x2 / Clickless Audio/Video Analog Crosspoint Switches
General DescriptionThe MAX4550/MAX4570 serial-interface, programma-
ble, 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 addi-
tional crosspoint inputs SA and SB as shunts. Each out-
put is selectively programmable for clickless or regular
mode operation. A set of internal resistive voltage-
dividers 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 80Ωon-resistance, 10Ω
on-resistance matching between channels, 5Ωon-
resistance flatness, and 0.014% total harmonic distor-
tion. 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-wire2C-compatible serial interface, while the MAX4570
uses a 3-wire SPI™/QSPI™ or MICROWIRE™-compati-
ble 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.
ApplicationsSet-Top Boxes
PC Multimedia Boards
High-End Audio Systems
Video Conferencing Systems
FeaturesSelectable Soft Switching Mode for Clickless
Audio Operation43ΩTypical On-Resistance (±5V Supplies)5ΩTypical On-Resistance Matching Between
Channels4ΩTypical On-Resistance Flatness0.014% Total Harmonic Distortion with 1kΩLoad-110dB Off-Isolation at 20kHz
-78dB Off-Isolation at 4MHz-95dB Crosstalk at 20kHz
-54dB Crosstalk at 4MHzSerial Interface
2-Wire, Fast-Mode, I2C-Compatible (MAX4550)
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4570)Four Auxiliary Outputs that Extend µP PortsSingle-Supply Operation: +2.7V to +5.5V
Dual-Supply Operation: ±2.7V to ±5.5V
MAX4550/MAX4570
Audio/Video Analog Crosspoint Switches
Pin Configuration
Ordering Information2C is a trademark of Philips Corp.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
ABSOLUTE MAXIMUM RATINGS
ANALOG ELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +5V ±5%, V- = -5V ±5%, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
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.
Note 1:Signals on NO_ _, S_, or COM_ _ exceeding V+ or V- are clamped by internal diodes. Limit forward-diode current to maxi-
mum current rating.
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
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
ANALOG ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)(V+ = +5V ±5%, V- = -5V ±5%, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
ANALOG ELECTRICAL CHARACTERISTICS—Single +5V Supply(V+ = +5V ±5%, V- = 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
ANALOG ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V+ = +5V ±5%, V- = 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
ANALOG ELECTRICAL CHARACTERISTICS—Single +3V Supply (V+ = +3V ±10%, V- = 0, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
INTERFACE I/O CHARACTERISTICS(V+ = +2.7V to +5.5V, V- = 0 to -5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
INTERFACE I/O CHARACTERISTICS (continued)(V+ = +2.7V to +5.5V, V- = 0 to -5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
Note 2:The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3:Guaranteed by design. Not subject to production testing.
Note 4:ΔRON= RON(MAX)- RON(MIN).
Note 5:On-resistance flatness is defined as the difference between the maximum and minimum on-resistance values, as measured
over the specified analog signal range.
Note 6:Leakage parameters are 100% tested at maximum rated temperature, and guaranteed by correlation at TA= +25°C.
Note 7:Off-isolation = 20 · log (VCOM_ __/ VNO_ _), VCOM_ _= output, VNO_ _= input to off switch.
Note 8:All timing is measured from the clock’s falling edge preceding the ACK signal for 2-wire, and from CS’s rising edge for
3-wire. Turn-Off Time is defined as the output of the switch for 0.5V change, tested with a 300Ωload to ground. Turn-On
Time is measured with a 5kΩload resistor to GND. All timing is shown with respect to 20% of V+ and 70% of V+, unless
otherwise noted.
Note 9:Typical values are for MAX4570 only.
Note 10:Supply current can be as high as 2mA per switch during switch transitions in the clickless mode, corresponding to 40mA
total supply transient current requirement.
Note 11:Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
Note 12:Cb = capacitance of one bus line in pF. Tested with Cb = 400pF.
Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switchesypical Operating Characteristics (continued)(TA = +25°C, unless otherwise noted.)
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switchesypical Operating Characteristics (continued)(TA = +25°C, unless otherwise noted.)
