MAX4762EUB+ Maxim Integrated Products, MAX4762EUB+ Datasheet - Page 8

• Manufacturer Part Number: MAX4762EUB+
• Description: IC SWITCH DUAL SPDT 10UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX4762EUB+

• Function: Switch
• Circuit: 2 x SPDT
• On-state Resistance: 850 mOhm
• Voltage Supply Source: Single Supply
• Voltage - Supply, Single/dual (±): 1.8 V ~ 5.5 V
• Current - Supply: 0.01µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX4762–MAX4764/MAX4764A/MAX4765 are low
on-resistance, low-voltage, dual SPDT analog switches
that operate from a +1.8V to +5.5V supply and are fully
specified for nominal 3.0V applications. The devices
feature a negative signal capability that allows signals
below ground to pass through without distortion and
have break-before-make switching.
The MAX4763/MAX4765 feature a comparator that can be
used for headphone or mute detection. The comparator
threshold is internally generated to be approximately 1/3
of V
internal shunt switch to discharge any capacitance at the
NO and NC connection points. This reduces the click-
and-pop sounds that occur when switching audio signals.
The MAX4762–MAX4764/MAX4764A/MAX4765 logic
inputs accept up to +5.5V, regardless of supply voltage.
For example, with a +3.3V supply, IN_ can be driven low
to GND and high to +5.5V allowing for mixing of logic
levels in a system. Driving IN_ rail-to-rail minimizes
power consumption. For a +1.8V supply voltage, the
logic thresholds are 0.5V (low) and 1.4V (high); for a
+5V supply voltage, the logic thresholds are 0.8V (low)
and 2.0V (high).
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
Figure 1. Typical Operating Circuit
8
MUTE
SOURCE 1
SOURCE 2
_______________________________________________________________________________________
AUDIO
AUDIO
CC
. The MAX4764/MAX4764A/MAX4765 feature an
OUT+
OUT-
OUT+
OUT-
CMPO
NC1
NO1
NC2
NO2
Applications Information
Detailed Description
MAX4765
SHUNT
SWITCH
Digital Control Inputs
V+
3
COM1
IN1
IN2
COM2
CMP-
V+
INPUT
SELECT
MUTE
BUTTON
8
SPEAKER
The on-resistance of the MAX4762–MAX4764/
MAX4764A/MAX4765 changes very little for analog input
signals across the entire supply voltage range (see the
Typical Operating Characteristics). The switches are bidi-
rectional, so the NO_, NC_, and COM_ pins can be either
inputs or outputs.
The MAX4762–MAX4764/MAX4764A/MAX4765 pass
signals as low as V
ground with minimal distortion.
The MAX4763/MAX4765 include a comparator that can
be used for mute and headphone detection functions.
The positive terminal of the comparator is internally set to
V
threshold, the comparator output (CMPO) is a logic high.
When CMP- rises above V
The comparator threshold of V
of headphones because headphone audio signals are
typically biased to V
The 100
MAX4765 automatically discharge any capacitance at
the NC_ or NO_ terminals when they are unconnected
to COM_. This reduces audible click-and-pop sounds
that occur when switching between audio sources.
Audible clicks and pops are caused when a step DC
voltage is switched into the speaker. By automatically
discharging the side that is not connected, any residual
DC voltage is removed, thereby reducing the clicks
and pops.
Caution: Do not exceed the absolute maximum ratings
since stresses beyond the listed ratings may cause
permanent damage to the device.
Proper power-supply sequencing is recommended for
all CMOS devices. Always apply V
analog signals, especially if the analog signal is not
current-limited.
For the latest application details on UCSP construction,
dimensions, tape carrier information, printed circuit board
techniques, bump-pad layout, and recommended reflow
temperature profile, as well as the latest information on
reliability testing results, go to the Maxim’s website at
www.maxim-ic.com/ucsp and search for the Application
Note, “UCSP—A Wafer-Level Chip-Scale Package.”
CC
/ 3. When the negative terminal (CMP-) is below the
UCSP Applications Information
shunt switches on the MAX4764/MAX4764A/
Comparator (MAX4763/MAX4765)
(MAX4764/MAX4764A/MAX4765)
Power-Supply Sequencing and
CC
CC
/ 2.
- 5.5V, including signals below
CC
Overvoltage Protection
Analog Signal Levels
/ 3, CMPO is a logic low.
CC
/ 3 allows for detection
CC
Shunt Switch
before applying