MAX4735 Maxim, MAX4735 Datasheet

no-image

MAX4735

Manufacturer Part Number
MAX4735
Description
The MAX4735 quad-SPDT switch routes audio signals in portable applications
Manufacturer
Maxim
Datasheet
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.
19-3581; Rev 0; 1/05
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.
Pin Configurations continued at end of data sheet.
Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch
TOP VIEW
NOTE: EXPOSED PADDLE CONNECTED TO GND.
Cell Phones
Digital Still Cameras
PDAs and Palmtop Devices
MP3 Players
COM1
COM2
NO1
NC2
________________________________________________________________ Maxim Integrated Products
1
2
3
4
General Description
16
5
Pin Configurations
MAX4735
TQFN
15
6
14
7
13
Applications
8
12
11
10
9
COM4
NO4
NC3
COM3
♦ Low 0.31Ω R
♦ 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
Note: All products specified across the -40°C to +85°C tem-
perature range.
MAX4735EUE
MAX4735ETE
CONTROLLER
RING TONE/
MELODY IC
PART
SYSTEM
CODEC
AUDIO
Typical Application Circuit
ON
PIN-PACKAGE
16 TQFN
16 TSSOP
Ordering Information
MAX4735
MARK
TOP
ACT
V
CC
Features
PKG CODE
1.6V TO 3.6V
T1633-4
U16-2
INTERNAL
8Ω
SPEAKER
EXTERNAL
8Ω OR 32Ω
SPEAKER
1

Related parts for MAX4735

MAX4735 Summary of contents

Page 1

... 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 ...

Page 2

... Limit forward-diode current to maximum current rating. 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 ...

Page 3

... Input-Logic Low V IL Input Leakage Current I IN Note 2: Devices are 100% tested Note 3: R and R matching specifications are guaranteed by design for MAX4735ETE only Note 4: ∆ ON(MAX) ON(MIN) Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance, as measured over the specified analog signal ranges ...

Page 4

... V OUT Figure 1. Switching Time MAX4735 NC_ V N_ NO_ IN_ LOGIC GND INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE. L Figure 2. Break-Before-Make Interval MAX4735 R GEN NC_ OR NO_ V GEN GND Figure 3. Charge Injection 4 _______________________________________________________________________________________ Timing Circuits/Timing Diagrams CC LOGIC CC INPUT COM_ V OUT ...

Page 5

... Figure 5. Channel On-/Off-Capacitance V OUT OFF-ISOLATION = 20log ✕ V REF V 50Ω OUT ON-LOSS = 20log ✕ V REF V OUT CROSSTALK = 20log ✕ V REF REF V REF 50Ω *FOR CROSSTALK THIS PIN IS NO2. NC2 AND COM2 ARE OPEN 10nF V CC COM_ MAX4735 IN NC_ or NO_ GND ...

Page 6

Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch ( +25°C, unless otherwise noted ON-RESISTANCE vs. COM_ VOLTAGE 1.0 0.9 0 1. 1. 2.0V 0.5 CC 0.4 V ...

Page 7

Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch ( +25°C, unless otherwise noted COM_ ON-CAPACITANCE vs. COM_ VOLTAGE 350 300 250 200 150 100 0.5 1.0 1.5 2.0 2.5 3.0 V (V) COM ON-RESPONSE ...

Page 8

... CMOS analog switch channels. They can be configured as dual-DPDT switches, dual 4:2 multiplexers/demulti- plexers single 8:4 multiplexer/demultiplexer. See Figure 6. Applications Information Analog Signal Range The CMOS switches in the MAX4735 function on any signal within the power-supply voltages. If any channel exceeds clamped any channel goes below GND clamped to GND by a silicon diode ...

Page 9

... For an 8Ω load, this corresponds to 2.3V . For a 4Ω load, this is 1.1V RMS The MAX4735 is offered in 16-pin TSSOP and 3mm x 3mm x 0.8mm TQFN packages. The mechanical draw- and IL ings for these packages are located at the end of this data sheet ...

Page 10

... Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch Chip Information TRANSISTOR COUNT: 487 PROCESS: CMOS 10 ______________________________________________________________________________________ Pin Configurations (continued) TOP VIEW INA NC1 2 15 NC4 COM1 3 14 COM4 MAX4735 NO1 4 13 NO4 NC2 5 12 NC3 COM2 6 11 COM3 NO2 7 10 NO3 GND 8 9 INB ...

Page 11

... Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch (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 0. ______________________________________________________________________________________ D/2 E Package Information D2 0. ...

Page 12

... Low-Voltage, 0.31Ω, Quad-SPDT Analog Switch (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.) PKG 12L 3x3 REF. MIN. NOM. MAX. MIN. 0.70 0.75 0.80 0. 0.20 0.25 0.30 0.20 D 2.90 3.00 3.10 2.90 E 2.90 3.00 3.10 2.90 e 0.50 BSC. 0.45 0.55 0.65 0. ...

Page 13

... For the latest package outline information go to www.maxim-ic.com/packages.) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

Related keywords