AD7341 Datasheet

• AD7341 - Transmit (Reconstruction) Filter for 14-BitDAC (AD7840)
  Programmable Attenuation (0dB to -38dB)
• 70dB Stopband Attenuation
• 75dB In-Band Signal-to-Noise Ratio
• Better Than - 75dB Total Harmonic Distortion
• CCITT V.32 and V.33 Compatible
• Small, 0.3", 24-Pin Plastic Package and 28-Pin PLCC

The AD7341 are reconstruction and antialiasing filters designed for use in high speed voiceband modems with speeds up to 14.4 kbits/sec, in accordance with CCITT V.32 and V.33 recommendations. These filters, along with the AD7840 DAC and a digital signal processor(DSP) can be used to implement a complete modem.

The AD7341 is the transmit or reconstruction filter. It implements the filter function using a seventh order low pass switched capacitor filter and a second order low pass continuous time filter. The cutoff frequency is 3.5kHz.