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MAX4572 の電気的特性と機能

MAX4572のメーカーはMaxim Integratedです、この部品の機能は「Serially Controlled / Clickless Audio/Video Switches」です。


製品の詳細 ( Datasheet PDF )

部品番号 MAX4572
部品説明 Serially Controlled / Clickless Audio/Video Switches
メーカ Maxim Integrated
ロゴ Maxim Integrated ロゴ 




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MAX4572 Datasheet, MAX4572 PDF,ピン配置, 機能
19-1404; Rev 1; 4/99
Serially Controlled, Clickless
Audio/Video Switches
General Description
The MAX4571–MAX4574 serial-interface controlled
switches are ideal for multimedia applications. Each
device features 35max on-resistance, -90dB audio
off-isolation at 20kHz, -60dB video off-isolation at
1.0MHz, and “clickless” mode operation for audio
applications.
The MAX4571/MAX4573 contain eleven SPST switches,
while the MAX4572/MAX4574 contain two SPST switch-
es and six SPDT switches. The MAX4571/MAX4572 fea-
ture a 2-wire, I2C™-compatible serial interface. The
MAX4573/MAX4574 feature a 3-wire, SPI™/QSPI™/
MICROWIRE™-compatible serial interface. All four
parts are available in 28-pin QSOP, SSOP, and wide
SO packages and operate over the commercial and
extended temperature ranges.
Features
o Selectable Soft Switching Mode for “Clickless”
Audio Operation
o 35max On-Resistance
o -90dB Audio Off-Isolation at 20kHz
-50dB Video Off-Isolation at 10MHz
o -90dB Audio Crosstalk at 20kHz
-52dB Video Crosstalk at 10MHz
o Serial Interface
2-Wire, Fast-Mode, I2C-Compatible (MAX4571/72)
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4573/74)
o Single-Supply Operation from +2.7V to +5.25V
Set-Top Boxes
PC Multimedia Boards
Applications
Audio Systems
Video Conferencing Systems
Pin Configurations
TOP VIEW
MAX4571/MAX4573
NO1 1
COM1 2
NO2 3
COM2 4
NO3 5
COM3 6
NO4 7
COM4 8
NO5 9
COM5 10
NO6 11
COM6 12
NO7 13
COM7 14
28 V+
27 SDA (DOUT)
26 SCL (DIN)
25 A1 (SCLK)
24 A0 (CS)
23 GND
22 NO8
21 COM8
20 NO9
19 COM9
18 NO10
17 COM10
16 NO11
15 COM11
PART
MAX4571CEI
MAX4571CAI
MAX4571CWI
MAX4571EEI
MAX4571EAI
MAX4571EWI
MAX4572CEI
MAX4572CAI
MAX4572CWI
MAX4572EEI
MAX4572EAI
MAX4572EWI
MAX4573CEI
MAX4573CAI
MAX4573CWI
MAX4573EEI
MAX4573EAI
MAX4573EWI
MAX4574CEI
MAX4574CAI
MAX4574CWI
MAX4574EEI
MAX4574EAI
MAX4574EWI
Ordering Information
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
28 QSOP
28 SSOP
28 Wide SO
( ) ARE FOR MAX4573
QSOP/SSOP/SO
Pin Configurations continued at end of data sheet.
I2C is a trademark of Philips Corp.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
________________________________________________________________ Maxim Integrated Products 1
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.

1 Page





MAX4572 pdf, ピン配列
Serially Controlled, Clickless
Audio/Video Switches
ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)
(V+ = 5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
VIDEO PERFORMANCE
SYMBOL
CONDITIONS
MIN
Off-Isolation (Note 7)
VISO(V)
VNO_ _ = 1VRMS, fIN = 1.0MHz,
RL = 50, Figure 1
Channel-to-Channel Crosstalk
VCT(V)
VNO_ _ = 1VRMS, fIN = 1.0MHz,
RS = 50, Figure 1
-3dB Bandwidth
BW RSOURCE = 50, RL = 50
Off-Capacitance
COFF(NO) fIN = 1MHz
DYNAMIC TIMING WITH CLICKLESS MODE DISABLED (Notes 8 and 12, Figure 2)
Turn-On Time
tONSD
VNO_ _ = 1.5V,
RL = 5k,
CL = 35pF
TA = +25°C
TA = TMIN to TMAX
Turn-Off Time
tOFFSD
VNO_ _ = 1.5V,
RL = 300,
CL = 35pF
TA = +25°C
TA = TMIN to TMAX
Break-Before-Make Time
tBBM
MAX4572/MAX4574, VNO_ _ = 1.5V,
TA = TMIN to TMAX
DYNAMIC TIMING WITH CLICKLESS MODE ENABLED (Note 8, Figure 2)
10
Turn-On Time
tONSE
VNO_ _ = 1.5V, RL = 5k, CL = 35pF,
TA = +25°C
Turn-Off Time
POWER SUPPLY
Supply Voltage Range
Supply Current (Note 9)
tOFFSE
VNO_ _ or = 1.5V, RL = 300, CL = 35pF,
TA = +25°C
V+ TA = TMIN to TMAX
I+
All logic inputs = 0 or V+,
TA = TMIN to TMAX
+2.7
TYP
-50
-52
>150
9
200
75
125
8
3
6
MAX UNITS
dB
dB
MHz
pF
500
ns
700
300
ns
400
ns
ms
ms
+5.25
10
V
µA
ELECTRICAL CHARACTERISTICS—Single +3V Supply
(V+ = 3V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
ANALOG SWITCHES
Analog Signal Range (Note 3)
VNO_ _,
VCOM_
0
TYP
On-Resistance
RON
ICOM_ = 4mA,
VNO_ _ =2V,
V+ = 2.7V
TA = +25°C
TA = TMIN to TMAX
43
On-Resistance Match
Between Channels (Note 4)
RON
ICOM_ = 4mA,
VNO_ _ = 2V,
V+ = 2.7V
TA = +25°C
TA = TMIN to TMAX
1
MAX UNITS
V+ V
90
110
5
5
_______________________________________________________________________________________ 3


3Pages


MAX4572 電子部品, 半導体
Serially Controlled, Clickless
Audio/Video Switches
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: RON = RON(MAX) - RON(MIN).
Note 5: 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 rising clock edge of the ACK bit for 2-wire, and from the rising edge of CS for 3-wire. Turn-
off time is defined at the output of the switch for a 0.5V change, tested with a 300load to ground. Turn-on time is mea-
sured with a 5kload resistor to GND. All timing is shown with respect to 20% V+ and 70% V+, unless otherwise noted.
Note 9: Supply current can be as high as 2mA per switch during switch transitions in the clickless mode, corresponding to a 28mA
total supply transient current requirement.
Note 10: Leakage testing for single-supply operation is guaranteed by testing with a single +5.25V supply.
Note 11: Cb = capacitance of one bus line in pF. Tested with Cb = 400pF.
Note 12: Typical values are for MAX4573/MAX4574 devices.
(V+ = +5V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
ON-RESISTANCE vs. VCOM
50
45 V+ = 2.7V
40
35
V+ = 3.3V
30
25
V+ = 5.0V
20
012345
VCOM (V)
SUPPLY CURRENT vs. TEMPERATURE
5.1
ON-RESISTANCE vs.
VCOM AND TEMPERATURE
32
30
TA = +85°C
28
TA = +70°C
26
TA = +25°C
24
22
20 TA = -40°C
18
01234
VCOM (V)
5
CHARGE INJECTION vs. VCOM
3
LEAKAGE CURRENT vs. TEMPERATURE
100
10
1
COM_ OFF
0.1
NO_ _ OFF
0.01
0.001
-40 -20
NO_ _ ON
0 20 40 60
TEMPERATURE (°C)
80
ON/OFF TIME vs. TEMPERATURE
(HARD MODE)
600
5.0 2 500
4.9 1 400 tON, V+ = 3V
4.8 0 300 tON, V+ = 5V
4.7
4.6
4.5
-40 -20
0 20 40 60
TEMPERATURE (°C)
80
-1
-2
-3
01 2345
VCOM (V)
200
100
0
-40 -20
tOFF, V+ = 3V
tOFF, V+ = 5V
0 20 40 60
TEMPERATURE (°C)
80
6 _______________________________________________________________________________________

6 Page



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