MAX9890 Audio Click-Pop Suppressor

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.

Key Features

Applications/Uses

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)

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

Key Specifications: Click-Pop Suppressors

Part Number

Supply Voltage (min) (V)

Supply Voltage (max) (V)

Quiescent Supply Current (typ) (mA)

PSRR (db)

THD+N (%)

SHDN

Number of Channels

RoHS Available

Industry Qualified

Package

Smallest Available Package (max w/pins) (mm²)

Price^**

MAX9890

2.7

5.5

0.014

100

0.003

Yes

Automotive - General

THIN QFN (Dual)/8
UCSP/8

$0.38 @ 1k

See All Click-Pop Suppressors (1)

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.

Ordering Information

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. More: SeeFull Data Sheet or Part 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.

Devices: 1-16 of 16

MAX9890

Free
Sample

Buy

Package:	TYPE PINS FOOTPRINT
	DRAWING CODE/VAR *

Temp

RoHS/Lead-Free?
Materials Analysis

MAX9890BETA

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890AETA

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890AETA+

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890BETA+

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890BETA-T

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890BETA+T

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890AETA-T

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890AETA+T

THIN QFN (Dual);8 pin;10 mm²
Dwg: 21-0137I (PDF)
Use pkgcode/variation: T833+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890BEBL

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890BEBL+

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890AEBL

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890AEBL+

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890BEBL+T

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9+2*

0°C to +70°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890BEBL-T

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9-2*

0°C to +70°C

RoHS/Lead-Free: No
Materials Analysis

MAX9890AEBL+T

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9+2*

-40°C to +85°C

RoHS/Lead-Free: Lead Free
Materials Analysis

MAX9890AEBL-T

UCSP;8 pin;2 mm²
Dwg: 21-0093L (PDF)
Use pkgcode/variation: B9-2*

-40°C to +85°C

RoHS/Lead-Free: No
Materials Analysis

More Information

	Topmark Coding: MAX9890
	New Product Press Release 2003-08-11