中文
EnglishThe APA2171,APA2172,APA2174,APA2175 is a stereo, differential input, single supply, and cap-free line driver, which is available in SOP-14 and TSSOP-14 packages
Features
Operating Voltage: 3V~3.6V
Differential Input
Ground Reference Output
- No Output Capacitor Required (for DC Blocking)
- Save the PCB Space
- Reduce the BOM Costs
- Improve the Low Frequency Response
Low Noise and THD+N
- SNR > 108dB
- Noise < 8μVrms
- THD+N < 0.02% at 20Hz~20kHz
Output Voltage Swing Can Reach 2.1Vrms/Ch into
2.5kΩ at VDD=3.3V
High PSRR: 80dB at 217Hz
Fast Start-up Time: 500μs
Integrate the De-Pop Circuitry
Thermal and Short-Circuit Protection
Surface-Mount Packaging
- SOP-14
- TSSOP-14
Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APA2171 is a stereo, differential input, single supply,
and cap-free line driver, which is available in SOP-14 and
TSSOP-14 packages.
The APA2171 is ground-reference output, and doesn’t
need the output capacitors for DC blocking. The advan-
tages of eliminating the output capacitor are saving the
cost, eliminating component height, and improving the
low frequency response.
The external gain setting is recommended using from
±1V/V to ±10V/V. High PSRR provides increased immu-
nity to noise and RF rectification. APA2171 has shutdown
and under-voltage detector function for Depop solution.
The APA2171 is capable of driving 2.1Vrms at 3.3V into
2.5kΩ load, and provides short-circuit and thermal pro-
tection.
Simplified Application Circuit
Part_No | Package & Pins | VDD Voltage (V) | IDD Supply Current (mA) | TSTART -UP (uS) | Output Power RL=32W (mW) | Output Power RL=2.5 KW (mW) | Total Harmonic Distortn Plus Noise (%) | Power Supply Rejection Ratio (dB) | Output Noise (uV) | Signal To Noise Ratio (dB) | Output Offset Voltage (mV) | |
min | max | |||||||||||
APA2171 | TSSOP-14 | 3 | 3.6 | 10 | 500 | 20 | 2.1 | 0.001 | 80 | 8 | 108 | 5 |
APA2172 | TSSOP-14 | 2.3 | 5.5 | 10 | 500 | 40 | 2.1 | 0.001 | 80 | 8 | 108 | 5 |
APA2174 | TQFN4x4-20A | 2.3 | 4.5 | 5 | 500 | NA | 2.1 | 0.002 | 90 | 10 | 105 | 8 |
APA2175 | TQFN4x4-20B | 2.3 | 4.5 | 5 | 16000 | NA | 2.1 | 0.003 | 80 | 15 | 102 | 8 |
"APA2176 | TQFN4x4-20B | 1.8 | 5.5 | 2 | 120 | 150 | NA | 0.03 | 82 | 15 | 95 | 5 |
APA2177 | WLCSP-16 | 2.4 | 5.5 | 2.5 | 4000 | 22 | NA | 0.02 | 90 | 7 | 95 | 0.5 |
APA2178 | WLCSP2x2-16 | 1.8 | 4.5 | 5 | 120 | 145 | NA | 0.02 | 75 | 15 | 100 | 5 |
APA2180 | WLCSP1.6x1.6-12 | 2.3 | 5.5 | 1 | 4000 | 60 | NA | 0.03 | 80 | 27 | 95 | 8 |
APA2181 | WLCSP1.6x1.6-12 | 2.3 | 5.5 | 1 | 4000 | 60 | NA | 0.03 | 80 | 27 | 95 | 8 |
APA2173 | MSOP-10P | 2.3 | 5.5 | 10 | 500 | 60 | 2.1 | 0.001 | 80 | 8 | 108 | 5 |
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