MAX4735 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – Low-Voltage, 0.31OHM, Quad-SPDT Analog Switch

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 R_ON
♦ 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 1
NO1 2
NC2 3
COM2 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
V_CC
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.