Products

TD9721 Stereo, Differential Input Cap-Free Line Driver

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

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 < 8uVrms

- THD+N < 0.02% at 20Hz~20kHz

Output Voltage Swing Can Reach 2.1Vrms/Chinto2.5 kΩat

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)