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PDF TD9721 Data sheet ( Hoja de datos )

Número de pieza TD9721
Descripción Differential Input Cap-Free Line Driver
Fabricantes Techcode 
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No Preview Available ! TD9721 Hoja de datos, Descripción, Manual

Techcode®
Stereo, Differential Input Cap-Free Line Driver
DATASHEET
TD9721
General Description
Features
The TD9721 is a stereo, differential input, single supply,and
cap-free line driver, which is available in SOP-14 and
TSSOP-14 packages.
The TD9721 is ground-reference output, and doesn’t need
the output capacitors for DC blocking. The advantages 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 immunity to
noise and RF rectification. TD9721 has shutdown and
under-voltage detector function for Depop solution.
The TD9721 is capable of driving 2.1Vrms at 3.3V into
2.5kload, and provides short-circuit and thermal rotection.
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 < 8uVrms
- THD+N < 0.02% at 20Hz~20kHz
Output Voltage Swing Can Reach 2.1Vrms/Chinto2.5 kΩ
at VDD=3.3V
High PSRR: 80dB at 217Hz
Fast Start-up Time: 500us
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)
Applications
Set-Top Boxes
CD/DVD Players
LCD TVs
HTIBs (Home Theater in Box)
October, 20, 2011.
Techcode Semiconductor Limited
1
www.techcodesemi.com

1 page




TD9721 pdf
Techcode®
Stereo, Differential Input Cap-Free Line Driver
DATASHEET
TD9721
Electrical Characteristics
VDD=3.3V, VGND=VPGND=0V, VSDN=VDD, CCPF=CCPO=1F, Ci=1F, RL=2.5k, TA=25oC, Ri=10k, Rf=20k(unless otherwise noted)
October, 20, 2011.
Techcode Semiconductor Limited
5
www.techcodesemi.com

5 Page





TD9721 arduino
Techcode®
Stereo, Differential Input Cap-Free Line Driver
Type Application Circuit
DATASHEET
TD9721
Line Driver Amplifier
1. Inverting
2. Non-Inverting
October, 20, 2011.
Techcode Semiconductor Limited
11
www.techcodesemi.com

11 Page







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