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PDF MAX4735 Data sheet ( Hoja de datos )
| Número de pieza | MAX4735 | |
| Descripción | Quad-SPDT Analog Switch | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-3581; Rev 0; 1/05
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
General Description
The MAX4735 quad-SPDT switch routes audio signals
in portable applications. Each channel has a 0.31Ω typ-
ical on-resistance, allowing the MAX4735 to drive 8Ω
loudspeakers with less than 0.02% distortion.
The MAX4735 is configured as a quad-SPDT switch with
two common control inputs. Each digital input controls
two pairs of SPDT switches. The switches are fully bidi-
rectional, allowing both multiplexing and demultiplexing
operation. Break-before-make operation is guaranteed.
The device operates from a +1.6V to +3.6V supply and
over the extended -40°C to +85°C temperature range. It
is offered in both 16-pin 3mm x 3mm TQFN and TSSOP
packages.
Features
♦ Low 0.31Ω RON
♦ 0.06Ω On-Resistance Flatness
♦ Excellent 0.015Ω On-Resistance Matching
♦ Low 0.02% THD into 8Ω
♦ Low 0.015% THD into 32Ω
♦ Audio Signal Routing
♦ Space-Saving, 3mm x 3mm TQFN Package
♦ 1.8V Logic Compatible
Applications
Cell Phones
Digital Still Cameras
PDAs and Palmtop Devices
MP3 Players
Ordering Information
PART
PIN-PACKAGE
TOP PKG CODE
MARK
MAX4735ETE 16 TQFN
MAX4735EUE 16 TSSOP
ACT T1633-4
— U16-2
Note: All products specified across the -40°C to +85°C tem-
perature range.
TOP VIEW
Pin Configurations
16 15 14 13
COM1
NO1
NC2
COM2
1
2
3
4
MAX4735
12 COM4
11 NO4
10 NC3
9 COM3
5678
TQFN
NOTE: EXPOSED PADDLE CONNECTED TO GND.
Pin Configurations continued at end of data sheet.
Typical Application Circuit
RING TONE/
MELODY IC
AUDIO
CODEC
SYSTEM
CONTROLLER
MAX4735
INTERNAL
8Ω
SPEAKER
EXTERNAL
8Ω OR 32Ω
SPEAKER
VCC 1.6V TO 3.6V
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1 page  
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
VCC 10nF
0V OR VCC IN_
VCC
COM1
NC1 MAX4735
50Ω NO1*
GND
Timing Circuits/Timing Diagrams (continued)
NETWORK
ANALYZER
VIN 50Ω 50Ω
OFF-ISOLATION = 20log ✕
VOUT
VREF
ON-LOSS = 20log ✕
VOUT
VREF
VOUT MEAS
CROSSTALK = 20log ✕
VOUT
VREF
REF
VREF
50Ω 50Ω
MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS.
OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ OR NC_ TERMINAL ON EACH SWITCH.
ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ OR NC_ TERMINAL ON EACH SWITCH.
CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL.
SIGNAL DIRECTION THROUGH SWITCH IS REVERSED; WORST VALUES ARE RECORDED.
Figure 4. On-Loss, Off-Isolation, and Crosstalk
*FOR CROSSTALK THIS PIN IS NO2.
NC2 AND COM2 ARE OPEN.
CAPACITANCE
METER
f = 1MHz
10nF VCC
COM_
VCC
MAX4735
NC_ or
NO_
GND
IN
VIL OR VIH
Figure 5. Channel On-/Off-Capacitance
_______________________________________________________________________________________ 5
5 Page 
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information
go to www.maxim-ic.com/packages.)
D
D/2
E/2
CL E
CL
D2/2
D2
b 0.10 M C A B
(NE - 1) X e
e
E2/2
E2
L
k
(ND - 1) X e
0.10 C
0.08 C
A
A2
A1
CL
L
e
CL
e
L
PACKAGE OUTLINE
12, 16L, THIN QFN, 3x3x0.8mm
21-0136
E
1
2
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MAX4735.PDF ] | |
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