SGM8905 Line Driver Datasheet

SGM8905 Datasheet, PDF, Equivalent


Part Number

SGM8905

Description

Capless 2Vrms to 3Vrms Line Driver

Manufacture

SG Micro

Total Page 13 Pages
Datasheet
Download SGM8905 Datasheet


SGM8905
SGM8905
Capless 2Vrms to 3Vrms Line
Driver with Adjustable Gain
GENERAL DESCRIPTION
FEATURES
The SGM8905 is a 2Vrms to 3Vrms pop/click-free stereo
line driver designed to allow the removal of the output
DC-blocking capacitors for reduced component count
and cost. The device is ideal for single supply electronics
where size and cost are critical design parameters.
The SGM8905 is capable of driving 3Vrms into a 2.5k
load with 5V supply voltage. The device has single input
and uses external gain setting resistors that supports a
gain range of ±1V/V to ±10V/V. The use of external gain
resistors also allows the implementation of a 2nd-order
low pass filter to compliment DAC's and SOC converters.
The SGM8905 has build-in shutdown control for
pop/click-free on/off control.
Using the SGM8905 in audio products can reduce
component count compared to traditional methods of
generating a 3Vrms output. The SGM8905 doesn't
require a power supply greater than 5V to generate an
8.5VPP output, nor does the device require a split rail
power supply. The SGM8905 integrates a charge pump
to generate a negative supply rail that provides a clean,
pop/click-free ground-biased 3Vrms output.
Capless Structure
Eliminates Pop/Clicks
Eliminates Output DC-Blocking Capacitors
Provides Flat Frequency Response from DC to 20kHz
Low Noise and THD
Typical SNR = 107dB
Typical VN = 7μVrms
Typical THD+N = 0.001% (f = 1kHz)
2Vrms Output Voltage into 2.5kLoad with 3.3V
Supply Voltage
3Vrms Output Voltage into 2.5kLoad with 5V
Supply Voltage
-40to +85Operating Temperature Range
Available in the Green MSOP-10 (Exposed Pad)
Package
APPLICATIONS
Set-Top Box
LCD TV
Blue-Ray DVD-Players
Home Theater in a Box
The SGM8905 is available in Green MSOP-10 (Exposed
Pad) package. It operates over an ambient temperature
range of -40to +85.
SG Micro Corp
www.sg-micro.com
REV. B

SGM8905
SGM8905
PACKAGE/ORDERING INFORMATION
Capless 2Vrms to 3Vrms Line
Driver with Adjustable Gain
MODEL
SGM8905
PACKAGE
DESCRIPTION
MSOP-10 (Exposed Pad)
ORDERING
NUMBER
SGM8905YPMS10G/TR
PACKAGE
MARKING
SGM8905
YPMS10
XXXXX
PACKAGE
OPTION
Tape and Reel, 3000
NOTE: XXXXX = Date Code and Vendor Code.
ABSOLUTE MAXIMUM RATINGS
CAUTION
Supply Voltage...........................................................-0.3V to 6V
Input Voltage.........................................VSS - 0.3V to VDD + 0.3V
Minimum Load Impedance (RL) .........................................600
EN to GND....................................................-0.3V to VDD + 0.3V
Operating Temperature Range...........................-40℃ to +85
Junction Temperature........................................................150
Storage Temperature Range............................ -65to +150
Lead Temperature (Soldering, 10s)
...........................................................................................260
ESD Susceptibility
HBM..................................................................................3000V
MM......................................................................................300V
NOTE:
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.
TYPICAL OPERATION CIRCUIT
This integrated circuit can be damaged by ESD if you don’t pay
attention to ESD protection. SGMICRO recommends that all
integrated circuits be handled with appropriate precautions.
Failure to observe proper handling and installation procedures
can cause damage. ESD damage can range from subtle
performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because
very small parametric changes could cause the device not to
meet its published specifications.
SGMICRO reserves the right to make any change in circuit
design, specification or other related things if necessary without
notice at any time. Please contact SGMICRO sales office to get
the latest datasheet.
DAC
SOC
DAC
_
+
SGM8905
RIGHT
+ LEFT
_
SG Micro Corp
www.sg-micro.com
2


Features SGM8905 Capless 2Vrms to 3Vrms Line Driv er with Adjustable Gain GENERAL DESCRI PTION FEATURES The SGM8905 is a 2Vrms to 3Vrms pop/click-free stereo line dr iver designed to allow the removal of t he output DC-blocking capacitors for re duced component count and cost. The dev ice is ideal for single supply electron ics where size and cost are critical de sign parameters. The SGM8905 is capable of driving 3Vrms into a 2.5kΩ load w ith 5V supply voltage. The device has s ingle input and uses external gain sett ing resistors that supports a gain rang e of ±1V/V to ±10V/V. The use of exte rnal gain resistors also allows the imp lementation of a 2nd-order low pass fil ter to compliment DAC's and SOC convert ers. The SGM8905 has build-in shutdown control for pop/click-free on/off contr ol. Using the SGM8905 in audio products can reduce component count compared to traditional methods of generating a 3V rms output. The SGM8905 doesn't require a power supply greater than 5V to generate an 8.5VPP output, nor d.
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