ECL2011|Mono 1W Filterless Non-Clip class-D Audio Power Amplifier


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ECL2011

Mono 1W Filterless Non-Clip class-D Audio Power Amplifier

 

General Description

ECL2011 is a 1W (RL=8Ω) Class-D audio power​​ amplifier.​​ ECL2011 uses the filter-less method allowing the​​ 

Speaker ​​​​ to be directly connected to the output and features​​ low-level distortion and noise characteristics.

ECL2011​​ has​​ non-clip​​ function​​ to​​ control ​​ gain​​ automatically and prevent output signal from being clipped​​ at the

supply voltage.​​ ECL2011​​ has​​ over-current​​ and​​ over-temperature​​ protection​​ function, under-voltage locked function, as ​​ well​​ as EMI noise and pop noise reduction functions.​​ The​​ ECL2011 is available in MSOP8, SOP8 and​​ SOT23-6​​ packages.

 

Features

1.0W ​​ Output ​​ at ​​ 1% ​​ THD ​​ with ​​ 8Ωload ​​ at ​​ 5V ​​ Power​​ Supply

Filter​​ less, Low Quiescent Current and Low EMI

High Efficiency up to 89%

Soft Start Function

VULO and OCP Protection

Thermal Shutdown

Pb-Free Package

 

Applications

Wireless or Cellular Handsets and PDAs

Personal Navigation devices

General Portable Audio devices

 

Application Information

 

 

 

 

 

 

 

 

 

 

Ordering​​ Information

 

ECL2011​​ N​​ ​​ XX​​ ​​ R

RTape & Reel

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ ​​  ​​​​  ​​ ​​ ​​ ​​​​ Package Type

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​​​  ​​ ​​ ​​ ​​​​ M1SOP8

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​  ​​ ​​ ​​ ​​​​ R1MSOP8

 ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​ ​​​​ B3SOT23-6

N

 

Device orientation:

R

Embossed Tape: Standard Feed

L

Embossed Tape: Reverse Feed

 

 

 

 

Marking Information

Part No.

Marking

Information

ECL2011NM1R

 

 

 

 

 

 

 

The second and line the third line stand for the company’s quality tracking information.

ECL2011NR1R

 

 

 

 

 

 

 

 

ECL2011NB3R

 

 

 

 

 

 

 

 

 

​​ DECL2011

​​ 1Output Power 1W

​​ ASingle Audio Input

 ​​ ​​ ​​​​ BFull Differential Input

 ​​ ​​​​ 09AZ repeated (GIJOQW are excepted)

Notes:

​​ "• "represents the batch number. "• "says" 1 ", dot not said "0"; For example: dot on the top of the "", and the top right of​​ the "", said "010010", used to track the product batch.

Pin Configuration

 

 

 

 

 

 

 

Pin Function Description

Pin Number

Pin Name

Function Description

SOT23-6

MSOP8

SOP8

4

1

1

SD

Chip Enable

-

2

2

NC

Not connected

3

3

3

INP

Positive Input

-

4

4

INN

Negative Input

6

5

5

OUTP

Positive Output

5

6

6

VDD

Power Supply

2

7

7

GND

Ground

1

8

8

OUTN

Negative Output

 

 

 

Function Block Diagram

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Absolute Maximum Ratings​​ 

Parameter

Symbol

Max

Unit

Supply Voltage

VDD

VSS-0.3VSS+6

V

Enable Voltage

SD

VSS-0.3VIN+0.3

Power Dissipation

[email protected]=25 SOT-23-6L

-

W

[email protected]=25 SOP8

-

[email protected]=25 MSOP8

 

Package Thermal

Resistance

SOT23-6

-

/W

MSOP8

-

SOP8

 

Lead Temperature

-

260

°C

Ambient Temperature

Topa

-40+85

Storage Temperature

Tstr

-65+125

ESD Susceptibility

HBM

4000

V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Electrical Characteristics

(VEN= VDD =3.6V, Gain=24dB, RL=8Ω,TA=25℃,unless otherwise specification)

Parameter

Symbol

Test Conditions

Min

Typ

Max

Unit

Supply Voltage Range

VDD

-

2.5

-

5.5

V

Quiescent Current

IQ

VSD=3.6V, No load

-

2.6

8

mA

Shutdown Current

ISHDN

VEN=0V

-

-

1

uA

High-level input voltage

SD

-

1.3

-

-

V

Low-level input voltage

SD

-

-

-

0.4

Drain-Source On​​ State Resistance

RDS(ON)

IDS=100mA

P MOSFET

-

450

-

N MOSFET

-

300

-

Output offset voltage

VOS

 

-

±8

-

mV

Output Power

PO

VDD=3.6V, THD+N=1%, f=1kHz

-

0.65

-

W

VDD=4.2V, THD+N=1%, f=1kHz

-

0.80

-

VDD=5.5V, THD+N=1%, f=1kHz

-

1.1

-

Total Harmonic Distortion Plus

Noise

THD+N

RL=8Ω, PO=200mW

-

0.2

-

%

RL=8Ω, PO=500mW

-

0.3

-

Peak Efficiency

η

-

-

89

-

%

AC Power Supply Ripple Rejection​​ Gain

PSRR

No input, f=1kHz, VPP=200mV

-

24

-

dB

Oscillator Frequency

fOSC

-

-

300

-

kHz

UVLO Threshold

VUVLO

Wake up

2.0

2.15

2.3

V

Hysteresis

-

50

-

mV

Logic Input Leak Current

ILKC_EN

250kΩresistor connected SD from GND

6

-

40

uA

Thermal Shutdown

TSD

Shutdown Temperature

-

160

-

Hysteresis

-

25

-

Non-Clip Attack Time

TATA

-

-

40

-

ms

Non-Clip Release Time

TRLA

-

-

1.2

-

s

Start Time

TSTUP

-

-

200

-

ms

Power-down Time

TPD

-

-

15

-

ms

 

 

 

 

Application Information

The​​ ECL2011 is a fully differential amplifier with differential inputs and outputs. The fully differential amplifier consists of a​​ differential amplifier and a common-mode amplifier. The differential amplifier ensures that the amplifier outputs a differential​​ voltage on the output that is equal to the differential input times the gain. The common-mode voltage at the output is biased​​ around VDD/2 regardless of the common-mode voltage at the input.

 

Non-Clip Function

Non-Clip function automatically controls the PWM amplifier gain so as not to clip the output signals even if the speaker​​ output is clipped at the supply voltage.

 

 

 

 

 

 

 

 

 

Quick Start/Quick Mute Function

Pop noise reduction circuit operates at startup or shutdown of the speaker amplifier. This function reduces intermittent​​ sound considerably and eliminates uncomfortable feeling. Quick Start/Quick Mute is a pop noise reduction function with the​​ gain controlling of the first amplifier stage.

 

 

 

 

 

 

 

 

 

Maximum Gain

The​​ ECL2011 has two internal amplifier stages. The first stage’s gain is externally configurable, while the second stage’s is​​ internally fixed. The gain of the first stage is set by selecting the ratio of RF to RI while the second stage’s gain is fixed at 2x.​​ The differential total gain for IC is

 

 

The​​ ECL2011 sets maximum RF=160kΩ, minimum RI=20kΩ, so the maximum closed-gain is 24dB.

 

Input Capacitor CI

In typical application, an input capacitor, CI, is required to allow the amplifier to bias input signals to a proper DC level for​​ optimum operation. A high pass filter with a corner frequency determined by CI and the minimum input impedance RI.

 

 

 

Further consideration for capacitor is the leakage path from the input source through the input network (RI, RF, CI) to the load.​​ This leakage current creates a DC offset voltage at the input to the amplifier that reduces useful headroom. For this reason, a​​ low leakage tantalum or ceramic capacitor is the best choice.

 

 

 

 

 

Power Supply Decoupling CS

The​​ ECL2011 requires adequate power supply decoupling to ensure the THD and PSRR as low as possible. Optimum​​ decoupling is achieved by using two capacitors of different types that target different types of noise on the power supply leads.​​ For higher frequency transients, a low equivalent-series-resistance (ESR) ceramic capacitor (1uF) is good, placing it as close​​ as possible to the device VDD terminal. For filtering lower-frequency noise signals, capacitor of 10uF or larger, closely located to​​ near the audio power amplifier is recommended.

 

Shutdown Operation

The shutdown feature of the​​ ECL2011 turns the amplifier off when a logic low is applied on the SD pin. A 250kΩ resistor is​​ connected from the SD pin to Pin GND. For the best power on/off pop performance, the amplifier should be set in the shutdown​​ mode prior to power on/off operation.

 

Under Voltage Lock-Out

The​​ ECL2011 incorporates circuitry to direct low on or off voltage. When the supply voltage drops to 2.1V or below, the​​ ECL2011 goes into a state of shutdown, and the device comes out of its shutdown state and starts to normal operation by reset​​ the power supply or SD pin.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Package Information

SOT23-6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

Dimensions In Millimeters

Dimensions In Inches

Min

Max

Min

Max

A

1.050

1.250

0.041

0.049

A1

0.000

0.100

0.000

0.004

A2

1.050

1.150

0.041

0.045

b

0.300

0.500

0.012

0.020

c

0.100

0.200

0.004

0.008

D

2.820

3.020

0.111

0.119

E

1.500

1.700

0.059

0.067

E1

2.650

2.950

0.104

0.116

e

0.950(BSC)

0.037(BSC)

e1

1.800

2.000

0.071

0.079

L

0.300

0.600

0.012

0.024

θ

 

 

 

 

 

 

 

SOP8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

Dimensions In Millimeters

Dimensions In Inches

Min

Max

Min

Max

A

1.350

1.750

0.053

0.069

A1

0.050

0.150

0.002

0.006

A2

1.350

1.550

0.053

0.061

b

0.330

0.510

0.013

0.020

c

0.170

0.250

0.007

0.010

D

4.700

5.100

0.185

0.200

E

3.800

4.000

0.150

0.157

E1

5.800

6.200

0.228

0.244

e

1.270(BSC)

0.050(BSC)

L

0.400

1.270

0.016

0.050

θ

 

 

 

 

 

 

 

 

 

 

 

 

 

MSOP8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symbol

Dimensions In Millimeters

Dimensions In Inches

Min

Max

Min

Max

A

0.820

1.100

0.032

0.043

A1

0.020

0.150

0.001

0.006

A2

0.750

0.950

0.030

0.037

b

0.250

0.380

0.010

0.015

c

0.090

0.230

0.004

0.009

D

2.900

3.100

0.114

0.122

E

2.900

3.100

0.114

0.122

E1

4.750

5.050

0.187

0.199

e

0.650(BSC)

0.026(BSC)

L

0.400

0.800

0.016

0.031

θ

 

 

 

 

 

 

 

 

 

 

 

 


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規格是死的,設計是活的
我們提供具有靈活彈性的客製化IC與模組設計

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