sgm4895 sg-micro, sgm4895 Datasheet

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sgm4895

Manufacturer Part Number
sgm4895
Description
1.1w Fully Differential Audio Power Amplifier
Manufacturer
sg-micro
Datasheet
1.SGM4895.pdf (10 pages)

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Bonase Electronics (HK) Co., Limited Bonase Electronics (HK) Co., Limited
Part Number:
sgm4895YMS8/TR
Manufacturer:
SGMICRO
Quantity:
5 746
GENERAL DESCRIPTION
The SGM4895 is a fully differential audio power amplifier
that is designed for portable communication device
applications and demanding applications in mobile
phones. It is capable of delivering 1.1W of continuous
average power to an 8Ω BTL load with less than 1%
distortion (THD+N) from a 5V battery voltage. It operates
from 2.5V to 5.5V power supply.
The SGM4895 features a low-power consumption
shutdown mode. To facilitate this, Shutdown may be
enabled by logic low. Additionally, the SGM4895 features
an internal thermal shutdown protection mechanism.
The SGM4895 contains advanced pop & click circuitry, a
minimal count of external components and low-power
shutdown mode. All these features make SGM4895 ideal
for wireless handsets and other low voltage applications
where minimal power consumption is a primary
requirement.
The SGM4895 is available in Pb-free CSP-9, DFN-8
(3mm × 3mm), MSOP-8 packages. It operates over an
ambient temperature range of -40℃ to +85℃.
SG Micro Limited
www.sg-micro.com
FEATURES
• Fully Differential Amplifier
• Excellent PSRR: Direct Connection to the Battery
• 1.1W to 8Ω BTL Load from 5V Supply at
• 2.5V to 5.5V Operation
• Low Shutdown Current
• Shutdown Pin is Compatible with 1.8V Logic
• Improved Pop & Click Circuitry
• Thermal Overload Protection Circuitry
• No Output Coupling Capacitors, Bootstrap
• External Gain Configuration Capability
• -40℃ to +85℃ Operating Temperature Range
• Pb-Free CSP-9, DFN-8, MSOP-8 Packages
APPLICATIONS
Portable Systems
Wireless Handsets
Mobile Phone
Handheld Computers
PDAs
GPS
THD+N < 1% (TYP)
Capacitors Required
SGM4895
1.1W Fully Differential
Audio Power Amplifier
REV. A

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sgm4895 Summary of contents

Page 1

... GENERAL DESCRIPTION The SGM4895 is a fully differential audio power amplifier that is designed for portable communication device applications and demanding applications in mobile phones capable of delivering 1.1W of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5V battery voltage. It operates from 2 ...

Page 2

... MSOP-8 Tape and Reel, 3000 PIN CONFIGURATIONS ) + 0.3V + SGM4895YDB8 SHDN 1 2 Bypass 3 IN2 4 IN1 DFN-8 1.1W Fully Differential Audio Power Amplifier PACKAGE MARKING OPTION INFORMATION 4895YG SGM4895DB SGM4895YMS8 (Top View) SGM4895YG A IN1 VO1 IN2 B GND V+ GND C VO2 Bypass SHDN CSP-9 SGM4895YMS8 8 VO2 ...

Page 3

... SGM4895 TYPICAL APPLICATION C I 0.39μ 0.39μF SG Micro Limited www.sg-micro.com R F 40kΩ 20kΩ IN1 Bypass SHDN Bias Circuitry Bypass C B 1μF (Optional) Bypass IN2 R I 20kΩ GND R 40kΩ 1.1W Fully Differential Audio Power Amplifier ...

Page 4

... V SHDN + V SDIH V SDIL f = 1kHz THD+N < 1% THD 0.6Wrms 1kHz 217Hz (Note 1) PSRR f = 1kHz (Note 1) CMRR f = 217Hz 200mV 1µ SDT 1.1W Fully Differential Audio Power Amplifier SGM4895 MIN TYP 2.5 = 5.0V 0. 3.3V 0. 2.6V 0.04 + -10 1.00 -10 1.00 1. 5.0V, No Load 4. 5.0V, 8 Ω Load 5. 3.3V, No Load 4. 3.3V, 8 Ω ...

Page 5

... SGM4895 TYPICAL PERFORMANCE CHARACTERISTICS Large Sine Signal Response OUT+ OUT- Time (10µs/div) Small Signal Step Response Time (2µs/div) Small Signal Frequency Response 0.01 0.1 Frequency (MHz) SG Micro Limited www.sg-micro.com 20kHz 8Ω +3V -10dBm, ...

Page 6

... SGM4895 TYPICAL PERFORMANCE CHARACTERISTICS THD+N vs. Output Power +3V 8Ω 1kHz + < 80kHz 0.1 0.01 0.001 0.01 0.1 Output Power (W) THD+N vs.Frequency 1 0.1 0.01 0.001 0.01 0.1 1 Frequency (kHz) Power Dissipation vs. Output Power 0.5 0.4 0.3 0.2 0 0.2 0.4 0.6 Output Power (W) SG Micro Limited www.sg-micro.com 0.01 0.001 1 0. +3V 8Ω 300mW O 0 ...

Page 7

... SGM4895 TYPICAL PERFORMANCE CHARACTERISTICS Clipping(Dropout) Voltage vs. Supply Voltage 4Ω Top L 0 4Ω Bottom L 0 8Ω Top L 0.4 0 Supply Voltage (V) SG Micro Limited www.sg-micro.com R = 8Ω Bottom 1.1W Fully Differential Audio Power Amplifier 7 ...

Page 8

... SGM4895 PACKAGE OUTLINE DIMENSIONS CSP-9 0.035±0.015 A1 CORNER TOP VIEW Note: All linear dimensions are in millimeters. SG Micro Limited www.sg-micro.com 0.380±0.025 0.235±0.020 SIDE VIEW 1.1W Fully Differential Audio Power Amplifier 1.460±0.040 9 ×F 0.315±0.020 ...

Page 9

... SGM4895 PACKAGE OUTLINE DIMENSIONS DFN-8 (3mm × 3mm) 3.000 ± 0.100 TOP VIEW SIDE VIEW Note: All linear dimensions are in millimeters. SG Micro Limited www.sg-micro.com 1.1W Fully Differential Audio Power Amplifier +0.050 0.250 0.650 ± 0.050 -0.070 N5 N8 2.300 ± 0.100 PIN #1 ...

Page 10

... SGM4895 PACKAGE OUTLINE DIMENSIONS MSOP 05/2008 REV. A SGMICRO is dedicated to provide high quality and high performance analog IC products to customers. All SGMICRO products meet the highest industry standards with strict and comprehensive test and quality control systems to achieve world-class consistency and reliability. ...

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