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MAX4550CAI+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
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.
General Description
The 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 80Ω on-resistance, 10Ω
on-resistance matching between channels, 5Ω on-
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-wire
I
2
C-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.
Applications
Set-Top Boxes
PC Multimedia Boards
High-End Audio Systems
Video Conferencing Systems
Features
♦ Selectable Soft Switching Mode for Clickless
Audio Operation
♦ 43Ω Typical On-Resistance (±5V Supplies)
♦ 5Ω Typical On-Resistance Matching Between
Channels
♦ 4Ω Typical On-Resistance Flatness
♦ 0.014% Total Harmonic Distortion with 1kΩ Load
♦ -110dB Off-Isolation at 20kHz
-78dB Off-Isolation at 4MHz
♦ -95dB Crosstalk at 20kHz
-54dB Crosstalk at 4MHz
♦ Serial Interface
2-Wire, Fast-Mode, I
2
C-Compatible (MAX4550)
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4570)
♦ Four Auxiliary Outputs that Extend µP Ports
♦ Single-Supply Operation: +2.7V to +5.5V
Dual-Supply Operation: ±2.7V to ±5.5V
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
________________________________________________________________
Maxim Integrated Products
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SA
NO2B
NO2A
V-
V+
NO1B
SDA (DIN)
NO1A
GND
COM1A
Q3
COM1B
Q2
A1 (DOUT)
SCL (SCLK)
A0 (CS)
Q1
COM2B
( ) ARE FOR MAX4570.
Q0
COM2A
V+
NO4B
NO4A
BIASL
BIASH
NO3B
NO3A
SB
SO/SSOP
TOP VIEW
MAX4550
MAX4570
19-1397; Rev 0; 10/98
PART
MAX4550CAI
MAX4550CWI
MAX4550EAI -40°C to +85°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
28 SSOP
28 Wide SO
28 SSOP
EVALUATION KIT
AVAILABLE
Functional Diagram appears at end of data sheet.
Pin Configuration
Ordering Information
MAX4550EWI -40°C to +85°C 28 Wide SO
MAX4570CAI
MAX4570CWI
MAX4570EAI -40°C to +85°C
0°C to +70°C
0°C to +70°C 28 SSOP
28 Wide SO
28 SSOP
MAX4570EWI -40°C to +85°C 28 Wide SO
I
2
C is a trademark of Philips Corp.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
Channel-to-Channel Crosstalk V
CTA(A)
ICOM_ _ = 1mA
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ANALOG ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +5V ±5%, V- = -5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +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 (T
A
= +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
I
COM_ _
= 4mA,
V
NO_ _
or V
S_
= ±3.0V,
V+ = 4.75V, V- = -4.75V
CONDITIONS
Ω
43 80
R
ON
On-Resistance
VV- V+
V
NO_ _
,
V
COM_ _
,
V
S_
Analog Signal Range (Note 3)
UNITSMIN TYP MAXSYMBOLPARAMETER
-110
T
A
= +25°C
T
A
= T
MIN
to T
MAX
100
I
COM_ _
= 4mA,
V
NO_ _
or V
S_
= ±3.0V,
V+ = 4.75V, V- = -4.75V
Ω
5 10
∆R
ON
COM_ _ to NO_ _ or S_
On-Resistance Match Between
Channels (Note 4)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
10
I
COM_ _
= 4mA;
V
NO_ _
or V
S_
= ±3.0V, 0;
V+ = 4.75V; V- = -4.75V
Ω
4 5
∆R
FLAT(ON)
COM_ _ to NO_ _ or S_
On-Resistance Flatness
(Note 5)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
8
V
NO_ _
or V
S_
= ±4.5V,
V
COM_
=
–
+
4.5V,
V+ = 5.25V, V- = -5.25V
nA
-1 0.01 1
NO
_(OFF)
NO_ _ or S_ Off-Leakage
Current (Note 6)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-10 10
V
NO_ _
or V
S_
= ±4.5V,
V
COM_
=
–
+
4.5V,
V+ = 5.25V, V- = -5.25V
nA
-5 0.01 5
I
COM
_(OFF)
COM_ _ Off-Leakage Current
(Note 6)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-10 10
V
NO_ _
or V
S_
= floating,
V
COM_
= ±4.5V,
V+ = 5.25V, V- = -5.25V
nA
-5 0.01 5
I
COM
_(ON)
COM_ _ On-Leakage Current
(Note 6)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-20 20
V
NO_ _
or V
S_
= 1V
RMS
, f
IN
= 20kHz,
R
L
= 10kΩ, three channels driven at 20kHz
dB-95V
CTA(A)
Channel-to-Channel Crosstalk
V
NO
= 1V
RMS
, f
IN
= 20kHz,
R
L
= 10kΩ, S = GND
dB
-80
V
ISO(A)
Off-Isolation (Note 7)
f
IN
= 1kHz, R
L
= 1kΩ, V
NO_
or V
S_
= 1V
RMS
,
V
NO_
or V
S_
= 0
%0.014THD+N
Total Harmonic Distortion plus
Noise
Shunt switch on
Shunt switch off
ANALOG SWITCHES
AUDIO PERFORMANCE
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
_______________________________________________________________________________________ 3
ANALOG ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +5V ±5%, V- = -5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
f
IN
= 1MHz,
CONDITIONS
pF11C
OFF(NO)
Off-Capacitance
-78
UNITSMIN TYP MAXSYMBOLPARAMETER
Shunt switch on
Shunt switch off
V
NO_ _
or V
S_
= 1
VRMS
,
f
IN
= 4MHz, R
L
= 1kΩ,
S_ = GND
dB
-63
V
ISO(V)
Off-Isolation
R
S
= 75Ω, R
L
= 1kΩ MHz14BW0.1dB Bandwidth
V
NO_ _
or V
S_
= 1.5V, R
L
= 300Ω
V
NO_ _
or V
S_
= 1.5V, R
L
= 5kΩ
ns200 500t
OFFSD
Turn-Off Time (Note 9)
ns400 900t
ONSD
Turn-On Time (Note 9)
V
NO_ _
or V
S_
= 1.5V ns10 100t
BBM
Break-Before-Make Time
V
NO_ _
or V
S_
= 1.5V, R
L
= 300Ω
V
NO_ _
or V
S_
= 1.5V, R
L
= 5kΩ
ms11t
OFFSE
Turn-Off Time
ms36t
ONSE
Turn-On Time
BIASH to BIASL kΩ13 20 27R
BIAS
Bias Network Resistance
Reset condition, V+ = 2.7V to 5.25V µA7 20I+V+ Supply Current (Note 10)
V+
Reset condition, V- = -5.25V to 0 µA-20I-V- Supply Current
V
NO_ _
or V
S_
= 1
VRMS
, f
IN
= 4MHz,
R
L
= 10Ω, three channels driven at 4MHz
dB-54V
CT(V)
Channel-to-Channel Crosstalk
V
2.7 5.25
V-
Supply Voltage Range
-5.25 0
ANALOG ELECTRICAL CHARACTERISTICS—Single +5V Supply
(V+ = +5V ±5%, V- = 0, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
I
COM_ _
= 4mA,
V
NO_ _
or V
S_
= 3.0V,
V+ = 4.75V
I
COM_ _
= 4mA,
V
NO_ _
or V
S_
= 3.0V,
V+ = 4.75V
Ω
5 10
∆R
ON
On-Resistance Match Between
Channels (Note 4)
CONDITIONS
V
NO
or V
S_
= 4.5V, 1V;
V
COM_ _
= 1V, 4.5V;
V+ = 5.25V
nA
-1 0.01 1
I
NO_ _(OFF)
NO_ _ or S_ Off-Leakage
Current (Notes 6, 11)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
-10 10
I
COM_ _
= 4mA;
V
NO_ _
or V
S_
= 1V, 2V,
3V; V+ = 4.75V
Ω
4 10
Ω
60 100
R
ON
On-Resistance
V0 V+
V
NO_ _
,
V
COM_ _
,
V
S_
Analog Signal Range (Note 3)
R
FLAT
On-Resistance Flatness
(Note 5)
T
A
= +25°C
T
A
= T
MIN
to T
MAX
15
UNITSMIN TYP MAXSYMBOLPARAMETER
T
A
= +25°C
T
A
= +25°C
T
A
= T
MIN
to T
MAX
130
T
A
= T
MIN
to T
MAX
10
VIDEO PERFORMANCE
DYNAMIC TIMING WITH CLICKLESS MODE DISABLED (Note 8)
DYNAMIC TIMING WITH CLICKLESS MODE ENABLED (Note 8, Figure 5)
BIAS NETWORKS
POWER SUPPLIES
ANALOG SWITCHES
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

MAX4550CAI+

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Buy MAX4550CAI+
Manufacturer:
Maxim Integrated
Description:
Analog & Digital Crosspoint ICs Dual 4x2 A/V Crosspoint Switch
Lifecycle:
New from this manufacturer.
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