Rainbow Electronics MAX9890 User Manual

General Description

The MAX9890 provides click-and-pop suppression for devices such as CODECs with integrated headphone amplifiers that lack a clickless/popless startup/powerup 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 ✕

1.5mm ✕ 0.6mm) 9-bump chip-scale package (UCSP™), as well as an 8-pin TDFN package (3mm ✕ 3mm ✕

0.8mm), and is specified for operation over the

-40°C to +85°C extended temperature range.

Applications

High-End Notebook Audio PDAs

Portable DVD Players Cell Phones

Portable MP3 Players

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 Protection (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)

MAX9890

Audio Click-Pop Suppressor

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-2932; Rev 0; 8/03

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.

Selector Guide

UCSP is a trademark of Maxim Integrated Products, Inc.

*Future product—contact factory for availability. **EP = Exposed pad.

Simplified Block Diagram

Typical Application Circuit and Pin Configurations appear at end of data sheet.

PART TEMP RANGE

M AX 9890AE BL- T* -40°C to +85°C 9 UCSP-9 ADV

MAX9890AETA -40°C to +85°C 8 TDFN-EP** AHA

M AX 9890BE BL- T* -40°C to +85°C 9 UCSP-9 ADW

MAX9890BETA -40°C to +85°C 8 TDFN-EP** AHB

PINPACKAGE

TOP

MARK

SINGLE SUPPLY

2.7V TO 5.5V

RAMP

DOWN

MAX9890

OUTL

OUTR

INL

RAMP

INR

PART PIN-PACKAGE

MAX9890AEBL-T 9 UCSP-9 200

MAX9890AETA 8 TDFN-EP 200

MAX9890BEBL-T 9 UCSP-9 330

MAX9890BETA 8 TDFN-EP 330

SWITCH TURN-ON

TIME (ms)

MAX9890

Audio Click-Pop Suppressor

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

(All Voltages are Referenced to GND) V

........................................................................................+6V

CEXT, SHDN, OUT_ .................................................-0.3V to +6V

IN_ ..............................................................-0.3V to (V

+ 0.3V)

Continuous Current (IN_, OUT_).....................................±150mA

Continuous Current (All Other Pins) .................................±20mA

Continuous Power Dissipation (T

= +70°C)

8-Pin TDFN (derate 24.4mW/°C above +70°C) ..........1951mW

9-Bump UCSP (derate 4.7mW/°C above +70°C)..........379mW

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Junction Temperature......................................................+150°C

Lead Temperature (soldering, 10s) .................................+300°C

Bump Temperature (soldering)

Reflow ...........................................................................+235°C

ELECTRICAL CHARACTERISTICS

(VCC= 3V, SHDN = VCC, GND = 0, C

CEXT

= 0.1µF, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

(Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage Range V

Inferred from RON test 2.7 5.5 V

Supply Current I

(Note 2) 14 22 µA

Shutdown Supply Current I

SHDN

SHDN = GND

1µA

Input Voltage Range Inferred from RON test 0

VCC = 5.5V 0.4 1

On-Resistance R

Over input voltage range

= 2.7V 0.7 1.5

Ω

On-Resistance Flatness

)

Over input voltage range 2 mΩ

Output Discharge Resistance

)

kΩ

Input Off-Leakage Current SHDN = GND

1µA

VCC Power-Down Threshold (Note 3)

UVLO

VCC falling 2.5 V

Click-Pop Reduction 36 dB

ESD Protection OUT_, Human Body Model ±8kV

DYNAMIC

MAX9890A

Turn-On Time (Note 4) t

MAX9890B

Turn-Off Time t

OFF

(Note 5)

Bandwidth

kHz

Total Harmonic Distortion Plus Noise

RL = 32Ω, 30mW, f = 1kHz

Off-Isolation, IN_ to OUT_ f = 20kHz, SHDN = GND, RL = 32Ω

Crosstalk (Switches ON) f = 20kHz

RIPPLE

= 0.5V

P-P

at 20Hz, fIN = 3kHz at

P-P

, RL = 32Ω

RIPPLE

= 0.5V

P-P

at 1kHz, fIN = 3kHz at

P-P

, RL = 32Ω

Power-Supply Rejection Ratio (Note 6)

PSRR

RIPPLE

= 0.5V

P-P

at 20kHz, fIN = 3kHz

at 1V

P-P

, RL = 32Ω

-84

0.001

FLAT(ON

OUT(DIS

THD+N

220

0.001

200

330

120

>100

0.003

-108

-100

MAX9890

Audio Click-Pop Suppressor

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(VCC= 3V, SHDN = VCC, GND = 0, C

CEXT

= 0.1µF, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.)

(Note 1)

Note 1: All devices are 100% tested at TA= +25°C. All temperature limits are guaranteed by design. Note 2: Supply current is measured when switch is on (i.e., SHDN = V

, t > tON).

Note 3: Supply voltage level where the device enters its power-down cycle. Note 4: Turn-on time is measured from the time V

= 3V and SHDN > VIHuntil the RONspecification is met.

Note 5: Switch turn-off time is measured from the time SHDN < V

or VCC< V

UVLO

until the off-isolation specification is met.

Note 6: See the Power-Supply Rejection Ratio section for test method.

Typical Operating Characteristics

(VCC= 3V, C

CEXT

= 0.1µF, typical values are at TA= +25°C, unless otherwise noted.)

ON-RESISTANCE vs. IN_ VOLTAGE

MAX9890 toc01

IN_ VOLTAGE (V)

ON-RESISTANCE (Ω)

4321

0.3

0.4

0.5

0.6

0.7

0.8

0.2 05

VCC = 3V

VCC = 5V

SUPPLY CURRENT vs. TEMPERATURE

MAX9890 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

6035-15 10

-40 85

VCC = 5.5V

VCC = 2.7V

SHUTDOWN CURRENT vs. TEMPERATURE

MAX9890 toc03

TEMPERATURE (°C)

SHUTDOWN CURRENT (pA)

603510-15

100

200

300

400

500

600

700

800

900

1000

-40 85

VCC = 2.7V

VCC = 5.5V

SHDN = 0V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

LOGIC INPUT (SHDN)

Logic-Input High Voltage V

Logic-Input Low Voltage V

Logic-Input Current I

VCC = 2.7V to 5.5V 2.0 V

VCC = 2.7V to 5.5V 0.8 V

±1 µA

MAX9890

Audio Click-Pop Suppressor

4 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VCC= 3V, C

CEXT

= 0.1µF, typical values are at TA= +25°C, unless otherwise noted.)

1.0

0.8

0.6

0.4

0.2

-0.2

ON-LOSS (dB)

-0.4

-0.6

-0.8

-1.0

ON-LOSS vs. FREQUENCY

RL = 32Ω

RL = 16Ω

10k1k10010 100k

FREQUENCY (Hz)

MAX9890 toc04

PHASE SHIFT (DEGREES)

PHASE SHIFT vs. FREQUENCY

-1

-2

-3

-4

-5 10010

FREQUENCY (Hz)

RL = 32Ω

RL = 16Ω

10k1k 100k

MAX9890 toc05

OFF-ISOLATION (dB)

OFF-ISOLATION vs. FREQUENCY

-10

-30

-50

-70

-90

-110

-130

-150

RL = 32Ω

RL = 16Ω

FREQUENCY (Hz)

MAX9890 toc06

10k1k10010 100k

-50

-60

-70

-80

-90

-100

-110

CROSSTALK (dB)

-120

-130

-140

-150

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

VCC = 3V

= 16Ω

f = 1kHz

THD+N (%)

0.1

0.01

CROSSTALK vs. FREQUENCY

10k1k10010 100k

FREQUENCY (Hz)

MAX9890 toc07

MAX9890 toc10

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

VCC = 5V

= 16Ω

f = 1kHz

THD+N (%)

0.1

0.01

0.001 0250

OUTPUT POWER (mW)

MAX9890 toc08

THD+N (%)

225200175150125100755025

0.001

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

VCC = 3V

= 32Ω

THD+N (%)

0.1

0.01

f = 1kHz

MAX9890 toc11

THD+N (%)

0.001

TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER

100

VCC = 5V

= 32Ω

f = 1kHz

0.1

0.01

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

VCC = 5V

= 16Ω

0.1

0.01

OUTPUT POWER = 25mW

MAX9890 toc09

100806040200120

OUTPUT POWER (mW)

MAX9890 toc12

OUTPUT POWER = 150mW

0.001 0

OUTPUT POWER (mW)

225200175150125100755025

0.001

OUTPUT POWER (mW)

100806040200120

0.0001 10 100k

FREQUENCY (Hz)

10k1k100

MAX9890

Audio Click-Pop Suppressor

_______________________________________________________________________________________ 5

Typical Operating Characteristics (continued)

(VCC= 3V, C

CEXT

= 0.1µF, typical values are at TA= +25°C, unless otherwise noted.)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

VCC = 5V

= 32Ω

0.1

0.01

THD+N (%)

0.001

0.0001

OUTPUT POWER = 20mW

OUTPUT POWER = 80mW

10 100k

FREQUENCY (Hz)

STARTUP WAVEFORM (DC)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

VCC = 3V

= 16Ω

MAX9890 toc13

10k1k100

0.0001

MAX9890 toc16

0.1

0.01

THD+N (%)

0.001

10 100k

SHDN 2V/div

OUT

1V/div

OUTPUT POWER = 100mW

OUTPUT POWER = 25mW

FREQUENCY (Hz)

MAX9890 toc14

10k1k100

0.0001

SHUTDOWN WAVEFORM (DC)

THD+N (%)

0.001

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

VCC = 3V

= 32Ω

0.1

0.01

OUTPUT POWER = 60mW

OUTPUT POWER = 20mW

SHDN 2V/div

10k1k100

10 100k

FREQUENCY (Hz)

MAX9890 toc17

MAX9890 toc15

OUT

MAX9890 toc19

1V/div

HEADPHONE

10mV/div

SHDN 2V/div

OUT

1V/div

HEADPHONE

1V/div

40ms/div

STARTUP WAVEFORM (AC)

40ms/div

MAX9890 toc18

HEADPHONE

10mV/div

SHDN 2V/div

OUT

1V/div

HEADPHONE

1V/div

10s/div

SHUTDOWN WAVEFORM (AC)

1s/div

MAX9890

Detailed Description

The MAX9890 provides click-and-pop suppression for single-supply devices such as CODECs and other headphone amplifiers that do not have click-and-pop suppression. Single-supply audio amplifier outputs have a DC bias voltage, V

/ 2, and require large output-coupling capacitors to block the DC voltage from the speaker. During startup or shutdown, the DC bias voltage is quickly raised or lowered (Figure 1), resulting in an audible transient through the headphone load. The MAX9890 prevents the audible transient by slowly ramping the DC bias in an S-shaped waveform (Figure

2), suppressing the large transient at the output of the coupling capacitor. The S-shaped waveform shapes the frequency spectrum, minimizing the amount of audible components present at the output.

Internal switches couple the inputs to the outputs after the coupling capacitors have fully charged to the input common-mode bias voltage. When power is removed or the device is put into shutdown, the internal switches in the MAX9890 immediately disconnect the output and slowly discharge the coupling capacitors through 220kΩ resistors.

The MAX9890 has an undervoltage lockout (UVLO) that prevents device operation when VCCis below the power-down threshold (2.5V, typ). The MAX9890 features ±8kV ESD (Human Body Model) protection on the audio outputs.

Startup

The MAX9890 monitors VCCand SHDN. The UVLO holds the device off when VCCis below the powerdown threshold (V

UVLO

) or SHDN is held low. The

device needs both VCCabove the power-down thresh-

old and SHDN = high for the part to start up. Once the supply voltage is above the power-down threshold and SHDN is high, the device charges the coupling capacitors to the input DC bias voltage using CEXT to control the ramp. After the DC bias ramp, the internal switches close, coupling the audio input to the output. The MAX9890 provides click-pop suppression even if the output blocking capacitors are already partially or fully charged.

The MAX9890A features a 200ms switch turn-on time, enabling the use of up to 100µF coupling capacitors at the output for applications requiring only a limited lowfrequency response and a rapid turn-on time. The MAX9890B features a 330ms switch turn-on time, enabling the use of >100µF coupling capacitors at the output for extended low-frequency response applications. For optional click-pop suppression, mute the audio signal until after the turn-on time has elapsed.

The internal switches stay closed as long as V

above the power-down threshold voltage and SHDN is high. Figures 1 and 2 show typical startup/power-up sequences with and without click-pop suppression.

Shutdown

If the supply voltage falls below the UVLO threshold or if SHDN is driven low, the device enters low-power shutdown mode. In low-power shutdown mode, quiescent current reduces to 0.001µA. The switches are immediately turned off and 220kΩ resistors slowly bleed the charge off the coupling capacitors. Figures 3 and 4 show typical shutdown/power-down sequences with and without click-pop suppression. For optiomal click-pop performance, mute the audio signal before shutting down the MAX9890.

Audio Click-Pop Suppressor

6 _______________________________________________________________________________________

Pin Description

PIN/BUMP

TDFN UCSP

1A2VCCPower Supply. VCC accepts 2.7V to 5.5V input supply. Bypass VCC to GND with a 1µF capacitor.

2A3SHDN

3 B3 INL Left-Channel Audio Input. Connect to output of headphone amplifier.

4 C3 OUTL Left-Channel Audio Output. AC couple to headphone.

5 C2 GND Ground

6 C1 OUTR Right-Channel Audio Output. AC couple to headphone.

7 B1 INR Right-Channel Audio Input. Connect to output of headphone amplifier.

8 A1 CEXT External Capacitor. Connect a 0.1µF capacitor from CEXT to GND.

NAME FUNCTION

Active-Low Shutdown. Connect SHDN to GND to enter a 0.1µA shutdown mode. Connect SHDN to V

for normal operation.

Switches

The MAX9890’s internal switches connect the input to the output after the coupling capacitors are fully charged. The MAX9890A holds the switches open for 200ms and is ideal for coupling capacitors less than 100µF. The MAX9890B has a longer turn-on time of 330ms and is

ideal with larger coupling capacitors less than 220µF. The internal switches have a low on-resistance (RON= 0.5Ω) and on-resistance flatness (R

FLAT(ON)

= 2mΩ) minimizing total harmonic distortion plus noise (THD+N). The relationship below shows the contribution to THD+N through the switch, due to on-resistance and on-resistance flat-

MAX9890

Audio Click-Pop Suppressor

_______________________________________________________________________________________ 7

0dB

Figure 1. Startup/Power-Up Sequence Without Click-Pop Suppression

Figure 2. Startup/Power-Up Sequence With Click-Pop Suppression

Figure 3. Shutdown/Power-Down Sequence Without Click-Pop Suppression

Figure 4. Shutdown/Power-Down Sequence With Click-Pop Suppression

2V/div V

OUT

1V/div

/SHDN

0dB

V 2V/div

V 1V/div

OUT

/SHDN

HEADPHONE

100mV/div

FFT

HEADPHONE

20dB/div

40ms/div

FFT: 25Hz/div

VCC/SHDN 2V/div

0dB

100ms/div

FFT: 25Hz/div

OUT

1V/div

HEADPHONE

500mV/div

FFT

HEADPHONE

20dB/div

HEADPHONE

50mV/div

FFT

HEADPHONE

20dB/div

40ms/div

FFT: 25Hz/div

/SHDN

2V/div

0dB

100ms/div

FFT: 25Hz/div

OUT

1V/div

HEADPHONE

20mV/div

FFT

HEADPHONE

20dB/div

MAX9890

ness (on-resistance flatness is defined as the difference between the maximum and minimum values of on-resistance measured over the specific analog-signal range).

Power-Supply Rejection Ratio (PSRR)

PSRR is the measurement of AC power-supply ripple or noise that couples to the output. Variations in supply voltage corrupt the audio signal, due to changes in the R

value by supply modulation. The FFT shown in Figure 5 was taken with a 19kHz 1V

P-P

sine wave onto the 5V DC

supply voltage, and a 20kHz 1V

P-P

sine wave applied at IN_ with a 32Ω load is shown in Figure 6. The MAX9890 maintains a -100dB (typ) PSRR across the supply voltage range eliminating any corruption of the audio signal from supply variations. Therefore, with a zero audio signal, the RONvariation due to supply voltage ripple does not contribute to any output signal modulation.

Low-Frequency Response

In addition to the cost and size disadvantages of the output-coupling capacitors, these capacitors limit the amplifier’s low-frequency response and can distort the audio signal.

The impedance of a headphone or speaker load and the output-coupling capacitor form a highpass filter with the -3dB point set by:

where RLis the headphone impedance and C

OUT

is the output-coupling capacitor value. The highpass filter is required by conventional single-ended, single powersupply headphone drivers to block the midrail DC bias component of the audio signal from the headphones. The drawback to the filter is that it can attenuate lowfrequency signals. Larger values of C

OUT

reduce this effect but result in physically larger, more expensive capacitors. Figure 7 shows the relationship between the size of C

OUT

and the resulting low-frequency attenuation. Note that the -3dB point for a 16Ω headphone with a 100µF blocking capacitor is 100Hz, well within the normal audio band, resulting in low-frequency attenuation of the reproduced signal.

The MAX9890A and MAX9890B have different turn-on times to accommodate different size output-coupling capacitors (see Table 1). Using a capacitor smaller than the specified maximum allowed does not degrade click-pop suppression. Therefore, capacitors less than 100µF can be used with the A or B version devices.

L OUT

−=3

2π

THD

MAXIMUM

FLAT ON

LOAD

=×

()

100

Audio Click-Pop Suppressor

8 _______________________________________________________________________________________

Figure 5. FFT for PSRR

Figure 6. PSRR Test Circuit

VCC = 4.5V TO 5.5V, f R

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

OUTPUT SPECTRUM (dBV)

-110

-120

-130

-140 15 17 19 21 23 25

= 32Ω, VIN = 1V

FREQUENCY (kHz)

= 19kHz,

VCC

, fIN = 20kHz

P-P

VDC = 5V V

= 1V

19kHz

20kHz

= 2.0V = 1V

P-P

IN_

P-P

RAMP

IN_

RAMP

DOWN

SHDN

OUT_

MAX9890

External Capacitor (C

CEXT

)

The external click-pop suppression capacitor at CEXT serves a dual purpose. On power-up, C

CEXT

is charged by an internal current source and is used to slowly ramp up the external coupling capacitors. When the device is powered down, C

CEXT

powers the internal circuitry used to drain the external coupling capacitors. A 0.1µF capacitor between CEXT and GND provides clickless/popless operation with coupling capacitors for both the MAX9890A and MAX9890B, even with the rapid removal of supply voltage.

Applications Information

Layout

Good layout improves performance by decreasing the amount of stray capacitance and noise. To decrease stray capacitance, minimize PC board trace lengths and resistor leads, and place external components as close to the device as possible.

Power Supply and Bypassing

The excellent PSRR of the MAX9890 allows it to operate from noisy power supplies. In most applications, a

0.1µF capacitor from VCCto GND is sufficient. This bypass capacitor should be placed close to VCC.

UCSP Applications Information

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, refer to the Application Note, “UCSP—A Wafer-Level Chip-Scale Package” available on Maxim’s website at www.maximic.com/ucsp.

Chip Information

TRANSISTOR COUNT: 1001

PROCESS: BiCMOS

MAX9890

Audio Click-Pop Suppressor

_______________________________________________________________________________________ 9

Figure 7. Low-Frequency Attenuation for Common DC-Blocking Capacitor Values

Table 1. Coupling Capacitor

*May experience some degradation of click-pop suppression.

LOW-FREQUENCY ROLLOFF

-3

-6

-9

-12

-15

-18

ATTENUATION (dB)

-21

-24

-27

-30 10 100 1k 10k 100k

= 16Ω)

330µF

220µF

100µF

33µF

FREQUENCY (Hz)

CAPACITOR

SIZE (µF)

33 √√

47 √√ 100 √√ 150 * √ 220 * √

330 — *

470 — *

MAX9890A

TURN-ON TIME

(200ms)

MAX9890B

TURN-ON TIME

(300ms)

MAX9890

Audio Click-Pop Suppressor

10 ______________________________________________________________________________________

Pin Configurations

HPLOUT

HPROUT

STARTUP AND

SHUTDOWN

CONTROL

GND

SHDN

OUTL

OUTR

INL

INR

CEXT

0.1µF

1µF

2.7V TO 5.5V

( ) UCSP BUMP.

*USER-DEFINED VALUE.

(A2)

(A1)

(C3)

(C1)

(C2)

(B1)

(B3)

(A3)

MAX9890

RAMP-UP AND

RAMP-DOWN

CONTROL

CODEC

WITH INTEGRATED

HEADPHONE

DRIVERS

Typical Application Circuit

TOP VIEW

MAX9890

SHDN

INL

OUTL

CEXT

INR

OUTR

GND

(BUMPS ON BOTTOM)

12 3

CEXT

INR

MAX9890

SHDN

INL

TDFN-EP

NOTE:

GND IS CONNECTED TO THE UNDERSIDE METAL SLUG.

OUTR

GND

OUTL

UCSP

MAX9890

Audio Click-Pop Suppressor

______________________________________________________________________________________ 11

Package Information

(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

MAX9890

Audio Click-Pop Suppressor

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.

12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

Package Information (continued)

(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

PIN 1 INDEX AREA

COMMON DIMENSIONS

MIN. MAX.

SYMBOL

0.70 0.80

2.90 3.10

0.00 0.05

0.20 0.40

0.25 MIN.

A2 0.20 REF.

DETAIL A

NUMBER OF LEADS SHOWN ARE FOR REFERENCE ONLY

C0.35

DALLAS

SEMICONDUCTOR

PROPRIETARY INFORMATION

TITLE:

PACKAGE OUTLINE, 6, 8 & 10L,

TDFN, EXPOSED PAD, 3x3x0.80 mm

APPROVAL

C L

DOCUMENT CONTROL NO. REV.

PIN 1 ID

1N1

[(N/2)-1] x e

REF.

21-0137 D

6, 8, &10L, QFN THIN.EPS

PACKAGE VARIATIONS

PKG. CODE

T633-1 1.50–0.10D22.30–0.10

1.50–0.10

2.30–0.10T833-1 8

JEDEC SPEC

0.95 BSCeMO229 / WEEA

MO229 / WEEC

0.65 BSC

[(N/2)-1] x e

0.40–0.05b1.90 REF

1.95 REF0.30–0.05

0.25–0.05 2.00 REFMO229 / WEED-30.50 BSC1.50–0.10 2.30–0.1010T1033-1

SEMICONDUCTOR

PROPRIETARY INFORMATION

TITLE:

PACKAGE OUTLINE, 6, 8 & 10L,

TDFN, EXPOSED PAD, 3x3x0.80 mm

DALLAS

DOCUMENT CONTROL NO.APPROVAL

21-0137

REV.

Rainbow Electronics MAX9890 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual