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MAX9890

Audio Click-Pop Suppressor

Industry's First Integrated Audio Click-and-Pop Suppressor

Overview

Technical Documents

Ordering Info

Status

Active: In Production.

Description

The MAX9890 provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless startup/power-up or shutdown/power-down. The device controls the ramping of the DC bias voltage on the output-coupling capacitors and the application of the audio signal to ensure that no audible transients are present at the headphones. The MAX9890A features a 200ms startup time for use with up to 100µF coupling capacitors. The MAX9890B features a 330ms startup time for use with greater than 100µF coupling capacitors.

The MAX9890 consumes 14µA of supply current and 0.001µA in shutdown, while contributing less than 0.003% THD+N into a 32Ω load. ESD (Human Body Model) protection circuitry on the outputs protect the MAX9890 and devices further up the signal chain from ESD strikes up to ±8kV.

The MAX9890 is available in a miniature (1.5mm x 1.5mm x 0.6mm) 9-bump chip-scale package (UCSP™), as well as an 8-pin TDFN package (3mm x 3mm x 0.8mm), and is specified for operation over the -40°C to +85°C extended temperature range.

Data Sheet

Download	Rev 2	(PDF, 448kB)
E-Mail

An evaluation kit is available: MAX9890EVKIT

Key Features

36dB Click-Pop Suppression
2.7V to 5.5V Single-Supply Operation
Clickless/Popless Startup/Power-Up and Shutdown/Power-Down
0.001µA Low-Power Shutdown Mode
THD+N < 0.003% Into 32Ω
±8kV ESD Protected Outputs (Human Body Model)
Requires Only One 0.1µF Capacitor to Complete the Circuit
Low 14µA Supply Current
Tiny Packaging
- 9-Bump UCSP (1.5mm x 1.5mm x 0.6mm)
- 8-Pin TDFN (3mm x 3mm x 0.8mm)

Applications/Uses

Cell Phones
High-End Notebook Audio
PDAs
Portable DVD Players
Portable MP3 Players

Key Specifications:

Click-Pop Suppressors

Part Number

V_SUPPLY
(V)

I_Q
(mA)

PSRR
(dB)

THD+N
(%)

SHDN

Channels

Industry Qualified

Package/Pins

Smallest Available Pckg.
(mm²)

Budgetary Price

min

max

typ

min

max w/pins

See Notes

MAX9890

2.7

5.5

0.014

100

0.003

Yes

Automotive - General

TDFN-EP/8

UCSP/8

9.6

$0.38 @1k

See All Click-Pop Suppressors (2)

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Typical Application Circuit

Application Notes

Application Note 4449		How to Pick a Click-and-Pop Suppressor
Tutorial 4723		Eliminating Audible Transients in Audio Systems

Product Guides

Audio (PDF)

Reliability Reports

Reliability Report:	MAX9890.pdf
Show FIT data for:

Software/Models

none

Ordering Information

Filters:

Part Number:

Package:

Temperature:

Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX9890AEBL+T			Active	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9890AEBL-T			Active	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX9890AETA+			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9890AETA+T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9890AETA-T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX9890BEBL+T			Active	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9890BEBL-T			Active	UCSP;8 pin;2.5 mm² Outline Drawing:21-0093 (PDF) Land Pattern: Not Available Use pkgcode/variation: B9-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX9890BETA+			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9890BETA+T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX9890BETA-T			Active	TDFN-EP;8 pin;9.6 mm² Outline Drawing:21-0137 (PDF) Land Pattern: 90-0059 (PDF) Use pkgcode/variation: T833-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis

Notes:

Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Evaluation Kits

MAX9890EVKIT

Evaluation Kit for the MAX9890

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