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부품번호 | HWD2111 기능 |
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기능 | Dual 105mW Headphone Amplifier | ||
제조업체 | CSMSC | ||
로고 | |||
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 16Ω
0.1% (typ)
into a 16Ω load 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
32Ω
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
Electrical Characteristics (Notes 1, 8)
The following specifications apply for VDD = 3.3V unless otherwise specified, limits apply to TA = 25˚C.
Symbol
Parameter
Conditions
HWD2111
Typical
Limit
(Note 4) (Note 5)
IDD Supply Current
ISD Shutdown Current
VOS Output Offset Voltage
Po Output Power
THD+N Total Harmonic Distortion
VIN = 0V, IO = 0A
VIN = 0V
VIN = 0V
0.1% THD+N; f = 1kHz
RL = 16Ω
RL = 32Ω
PO = 25mW, RL = 32Ω
f = 20Hz to 20kHz
1.1
0.3
4.0
40
28
0.5
PSRR Power Supply Rejection Ratio
CB = 1.0µF, VRIPPLE = 100mVPP
f = 217Hz
60
VIH (CLOCK, UP/DN, SHUTDOWN)
Input Voltage High
1.4
VIL (CLOCK, UP/DN, SHUTDOWN)
Input Voltage Low
0.4
Digital Volume Range
Input referred minimum gain
−33
Input referred maximum gain
+12
Digital Volume Stepsize
All 16 discrete steps
3.0
Stepsize Error
All 16 discrete steps
±0.3
Channel−to−Channel Volume
All gain settings from
0.15
Tracking Error
−33dB to +12dB
Shutdown Attenuation
Shutdown mode active
−100
Units
(Limits)
mA
µA
mV
mW
mW
%
dB
V (min)
V (max)
dB
dB
dB
dB
dB
dB
Electrical Characteristics (Notes 1, 8)
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)
IDD Supply Current
ISD Shutdown Current
VOS Output Offset Voltage
Po Output Power
THD+N Total Harmonic Distortion
VIN = 0V, IO = 0A
VIN = 0V
VIN = 0V
0.1% THD+N; f = 1kHz
RL = 16Ω
RL = 32Ω
PO = 15mW, RL = 32Ω
f = 20Hz to 20kHz
1.0
0.3
4.0
20
16
0.6
PSRR Power Supply Rejection Ratio
CB = 1.0µF, VRIPPLE = 100mVPP
f = 217Hz
60
VIH (CLOCK, UP/DN, SHUTDOWN)
Input Voltage High
1.4
VIL (CLOCK, UP/DN, SHUTDOWN)
Input Voltage Low
0.4
Digital Volume Range
Input referred minimum gain
−33
Input referred maximum gain
+12
Digital Volume Stepsize
All 16 discrete steps
3.0
Stepsize Error
All 16 discrete steps
±0.3
Channel−to−Channel Volume
All gain settings from
0.15
Tracking Error
−33dB to +12dB
Units
(Limits)
mA
µA
mV
mW
mW
%
dB
V (min)
V (max)
dB
dB
dB
dB
dB
4
4페이지 Typical Performance Characteristics (Continued)
THD+N vs Frequency
THD+N vs Output Power
THD+N vs Output Power
THD+N vs Output Power
THD+N vs Output Power
THD+N vs Output Power
7
7페이지 | |||
구 성 | 총 19 페이지수 | ||
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부품번호 | 상세설명 및 기능 | 제조사 |
HWD2111 | Dual 105mW Headphone Amplifier | CSMSC |
HWD2119 | 350mW Audio Power Amplifier | CSMSC |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |