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General Description
The MAX4584/MAX4585 serial-interface, programmable
switches are ideal for multimedia applications. Each
device contains one normally open (NO) single-pole/
single-throw (SPST) switch and one single-pole/doublethrow (SPDT) switch. The MAX4584/MAX4585 feature
65Ω on-resistance, 4Ω on-resistance matching
between channels, and 5Ω on-resistance flatness.
Additionally, they have off-isolation of -83dB at 20kHz
and -48dB at 10MHz, with crosstalk of -84dB at 20kHz
and -60dB at 10MHz.
The MAX4584 uses a 2-wire I2C™-compatible serial
interface; the MAX4585 uses a 3-wire SPI™/QSPI™/
MICROWIRE™-compatible interface. Both devices are
available in a 10-pin µMAX package and are specified
for the extended-industrial (-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
♦ SPST and SPDT Switches
♦ 65Ω (max) R
ON
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
2
C Compatible (MAX4584)
3-Wire SPI/QSPI/MICROWIRE Compatible
(MAX4585)
MAX4584/MAX4585
Serially Controlled
Audio/Video Switches
________________________________________________________________
Maxim Integrated Products
1
19-1521; Rev 0; 8/99
PART
MAX4584EUB
MAX4585EUB
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE PIN-PACKAGE
10 µMAX
10 µMAX
Ordering Information
I2C is a trademark of Philips Corp.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Pin Configuration/
Functional Diagram
TOP VIEW
MAX4584
MAX4585
COM1
A (CS)
SDA (DIN)
V+
SCL (SCLK)
( ) ARE FOR MAX4585 ONLY.
1
2
3
4
5
µMAX
10
NO1A
9
NO1B
GND
8
7
COM2
NO2
6
MAX4584/MAX4585
Serially Controlled
Audio/Video Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±5%, TA= T
MIN
to T
MAX
, 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.
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.......................................................>2kV
Continuous Power Dissipation (TA= +70°C)
µMAX (derate 4.1mW/°C above +70°C) .....................330mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1: Signals on NO_ _ or COM_ exceeding V+ or ground are clamped by internal diodes. Limit forward-diode current to maximum
current rating.
AUDIO PERFORMANCE
-10 10TA= T
MIN
to T
MAX
VA= 1V
RMS
, fIN= 20kHz,
RS= 600Ω, Figure 8
dB
TA= +25°C
VA= 1V
RMS
, fIN= 20kHz,
RL= 600Ω, Figure 8
TA= T
MIN
to T
MAX
TA= +25°C
CONDITIONS
-84V
CT(A)
Channel-to-Channel Crosstalk
24
V0V+
VNO_ _,
V
COM_
Analog Signal Range (Note 3)
dB-83V
ISO(A)
Off-Isolation (Note 7)
5
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
-1 0.001 1
45 65
80
-10 10
TA= T
MIN
to T
MAX
UNITSMIN TYP MAXSYMBOLPARAMETER
25
6.5
TA= +25°C
V+ = 5.25V;
VNO_ _ = 1V, 4.5V, or
floating;
V
COM_
= 1V, 4.5V
TA= +25°C
nA
-1 0.002 1
I
COM_(ON)
COM_
On-Leakage Current (Note 6)
TA= T
MIN
to T
MAX
-1 0.001 1
-10 10
V+ = 4.75V,
VNO_ _ = 3V,
I
COM_
= 4mA
R
ON
On-Resistance Ω
Ω
V+ = 4.75V,
V
NO
_ _ = 3V,
I
COM_
= 4mA
∆R
ON
On-Resistance
Match Between Channels
(Note 4)
Ω
V+ = 4.75V;
VNO_ _ = 1V, 2V, 3V;
I
COM_
= 4mA
R
FLAT
On-Resistance
Flatness (Note 5)
nA
V+ = 5.25V;
VNO_ _ = 1V, 4.5V;
V
COM_
= 4.5V, 1V
INO_ _
(OFF)
NO_ _
Off-Leakage Current (Note 6)
V+ = 5.25V;
VNO_ _ = 1V, 4.5V;
V
COM_
= 4.5V, 1V
I
COM_(OFF)
COM_
Off-Leakage Current (Note 6)
nA
ANALOG SWITCHES
AUDIO PERFORMANCE
Serially Controlled
Audio/Video Switches
_______________________________________________________________________________________ 3
MAX4584/MAX4585
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = +5V ±5%, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)
POWER SUPPLY
Off-Isolation (Note 7) V
ISO(V)
-48 dB
VA= 1V
RMS
, fIN= 10MHz,
RL= 50Ω, Figure 8
TA= +25°C 275 400
nsTurn-On Time t
ON
V
NO_ _
= 2.5V,
CL= 35pF,
RL= 5kΩ
-0.1dB Bandwidth BW 5 MHz
-3dB Bandwidth BW 300 MHzRS= 50Ω, RL= 50Ω
RS= 75Ω, RL= 1kΩ
PARAMETER SYMBOL MIN TYP MAX UNITS
NO_ _ Off-Capacitance C
OFF
5 pF
nsTurn-Off Time
Break-Before-Make Time t
BBM
10 50 ns
t
OFF
V
NO_ _
= 2.5V,
CL= 35pF,
RL= 300Ω
V
NO_ _
= 2.5V, Figure 6
Charge Injection Q 3 pC
Power-Supply Voltage Range V+ 2.7 5.5 V
Supply Current I+ 510µA
Channel-to-Channel Crosstalk V
CT(V)
-60 dB
VA= 1V
RMS
, f
IN
= 10MHz,
RS= 50Ω, Figure 8
CONDITIONS
fIN= 1MHz
TA= +25°C 125 200
CL= 1.0nF, VS= 0, RS= 0, Figure 7
All logic inputs = 0 or V+
TA= T
MIN
to T
MAX
500
TA= T
MIN
to T
MAX
250
VIDEO PERFORMANCE
DYNAMIC TIMING (Notes, 8, 11, and Figure 5)
MAX4584/MAX4585
Serially Controlled
Audio/Video Switches
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = +3.0V ±10%, TA= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at TA= +25°C.)
nA
-1 0.001 1
V+ = 3.6V;
V
COM
_ = 0.5V, 3V;
V
NO_ _
= 3V, 0.5V
I
NO_ _(OFF)
NO_ _ Off-Leakage
Current (Notes 6, 9)
-10 10TA= T
MIN
to T
MAX
TA= +25°C
nA
-1 0.001 1
V+ = 3.6V;
V
COM
_ = 0.5V, 3V;
V
NO_ _
= 3V, 0.5V
I
COM_(OFF)
COM_ Off-Leakage
Current (Notes 6, 9)
-10 10TA= T
MIN
to T
MAX
TA= +25°C
ns10 100t
BBM
Break-Before-Make Time V
NO_ _
= 1.5V, Figure 6
500
200 350
V
NO_ _
= 1.5V,
RL= 300Ω, CL= 35pF
t
OFF
Turn-Off Time
TA= T
MIN
to T
MAX
TA= +25°C
Ω
35
V+ = 2.7V,
V
NO_ _
= 1V,
I
COM_
= 4mA
∆R
ON
On-Resistance
Match Between Channels
(Note 4)
6TA= T
MIN
to T
MAX
TA= +25°C
1000
ns
400 800
V
NO_ _
= 1.5V,
RL= 5kΩ, CL= 35pF
t
ON
Turn-On Time
pF5fIN= 1MHzC
OFF
NO_ _ Off-Capacitance
dB-60
VA= 0.5V
RMS
, fIN= 10MHz, RS= 50Ω,
Figure 8
V
CT(V)
Channel-to-Channel Crosstalk
dB-48
VA= 0.5V
RMS
, fIN= 10MHz, RL= 50Ω,
Figure 8
V
ISO(V)
Off-Isolation
PARAMETER SYMBOL MIN TYP MAX UNITS
dB-84
VA= 0.5V
RMS
, fIN= 20kHz, RS= 600Ω,
Figure 8
V
CT(A)
Channel-to-Channel Crosstalk
dB-83
VA= 0.5V
RMS
, fIN= 20kHz, RL= 600Ω,
Figure 8
V
ISO(A)
Off-Isolation (Note 7)
nA
-1 0.002 1
V+ = 3.6V;
V
COM_
= 0.5V, 3V;
VNO_ _ = 0.5V, 3V,
or floating
I
COM_(ON)
COM _ On-Leakage
Current (Notes 6, 9)
CONDITIONS
TA= T
MIN
to T
MAX
-10 10TA= T
MIN
to T
MAX
TA= +25°C
TA= +25°C
ns
Ω
310
V+= 2.7V;
V
NO_ _ =
1V, 1.5V, 2V;
I
COM_
= 4mA
R
FLAT
On-Resistance
Flatness (Note 5)
12TA= T
MIN
to T
MAX
TA= +25°C
V0V+
V
NO_ _
,
V
COM_
Analog Signal Range (Note 3)
Ω
65 110
V+ = 2.7V,
V
NO_ _
= 1V,
I
COM_
= 4mA
R
ON
On-Resistance
130TA= T
MIN
to T
MAX
TA= +25°C
MHz200RS= 50Ω, RL= 50ΩBW-3dB Bandwidth
ANALOG SWITCHES
AUDIO PERFORMANCE
VIDEO PERFORMANCE
DYNAMIC TIMING (Notes 8, 11, and Figure 5)