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What is HWD2111?

This electronic component, produced by the manufacturer "CSMSC", performs the same function as "Dual 105mW Headphone Amplifier".


HWD2111 Datasheet PDF - CSMSC

Part Number HWD2111
Description Dual 105mW Headphone Amplifier
Manufacturers CSMSC 
Logo CSMSC Logo 


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HWD2111
Dual 105mW Headphone Amplifier with Digital Volume
Control and Shutdown Mode
General Description
Key Specifications
The HWD2111 is a dual audio power amplifier capable of n THD+N at 1kHz, 105mW continuous average output
delivering 105mW per channel of continuous average power
power into 16
0.1% (typ)
into a 16load with 0.1% (THD+N) from a 5V power supply. n THD+N at 1kHz, 70mW continuous average power into
audio power amplifiers were designed specifically to
32
0.1% (typ)
provide high quality output power with a minimal amount of n Shutdown Current
external components. Since the HWD2111 does not require
0.3µA (typ)
bootstrap capacitors or snubber networks, it is optimally Features
suited for low-power portable systems.
n Digital volume control range from +12dB to −33dB
The HWD2111 features a digital volume control that sets the n LD and MSOP surface mount packaging
amplifier’s gain from +12dB to −33dB in 16 discrete steps
using a two−wire interface.
The unity-gain stable HWD2111 also features an externally
controlled, active-high, micropower consumption shutdown
n
n
n
"Click and Pop" suppression circuitry
No bootstrap capacitors required
Low shutdown current
mode. It also has an internal thermal shutdown protection
mechanism.
Applications
n Cellular Phones
n MP3, CD, DVD players
n PDA’s
n Portable electronics
Connection Diagrams
MSOP Package
LD Package
Top View
Order Number HWD2111MM
Top View
Order Number HWD2111LD
1

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HWD2111 equivalent
Electrical Characteristics (Notes 1, 8) (Continued)
The following specifications apply for VDD = 2.6V unless otherwise specified, limits apply to TA = 25˚C.
Symbol
Parameter
Conditions
HWD2111
Typical
Limit
(Note 4) (Note 5)
Shutdown Attenuation
Shutdown mode active
−75
Units
(Limits)
dB
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Note 2: Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and
test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may
degrade when the device is not operated under the listed test conditions.
Note 3: Human body model, 100pF discharged through a 1.5kresistor.
Note 4: Typical specifications are specified at +25˚C and represent the most likely parametric norm.
Note 5: Tested limits are guaranteed to CSMSC’s AOQL (Average Outgoing Quality Level). Datasheet min/max specification limits are guaranteed by design, test,
or statistical analysis.
Note 6: : Machine Model ESD test is covered by specification EIAJ IC-121-1981. A 200pF cap is charged to the specified voltage, then discharged directly into the
IC with no external series resistor (resistance of discharge path must be under 50 Ohms).
Note 7: The LDA10A package has its Exposed−DAP soldered to an exposed 2in2 area of 1oz printed circuit board copper.
Note 8: All voltages are measured with respect to the ground pin, unless otherwise specified.
External Components Description
(Figure 1)
Components
1. Ci
2. CS
3. CB
4. CO
Functional Description
This is the input coupling capacitor. It blocks the DC voltage at, and couples the input signal to, the
amplifier’s input terminals. Ci also creates a highpass filter with the internal input resistor, Ri, at fc =
1/(2πRiCi). The minimum value of Ri is 33k. Refer to the section, Proper Selection of External
Components, for an explanation of how to determine the value of Ci.
This is the supply bypass capacitor. It provides power supply filtering. Refer to the Application
Information section for proper placement and selection of the supply bypass capacitor.
This is the BYPASS pin capacitor. It provides half-supply filtering. Refer to the section, Proper
Selection of External Components, for information concerning proper placement and selection of CB.
This is the output coupling capacitor. It blocks the DC voltage at the amplifier’s output and it forms a
high pass filter with RL at fO = 1/(2πR LCO)
Typical Performance Characteristics
THD+N vs Frequency
THD+N vs Frequency
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HWD2111 electronic component.


Information Total 19 Pages
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