D/A Converters (DIF) Digital to IF Converters

Kaben's Digital to IF Converters and D/A Converters are ideal for Wireless Communications products such as Bluetooth, WLAN 802.11a, 802.11b, 802.11g, and Cable Modems. These cells are designed for low power transmitters employing complex modulation formats such as Orthogonal Frequency Division Multiplexing (OFDM) and high data-rate multi-level Quadrature Amplitude Modulation (QAM).

The Digital-to-IF Converter upconverts a digital baseband input to IF frequencies, up to 300 MHz and up to 20 MHz bandwidth.

Using high IF frequencies simplifies the off-chip RF filters because the image frequency and the LO frequency will be farther away from the desired output frequency.

The Image Rejection of 60 dB and Spurious Free Dynamic Range (SFDR) of 60 dB is useful in OFDM and QAM transmitter architectures. This unique DAC eliminates the issue of quantization noise by removing it with an integrated on-chip FIR Filter. The DAC and FIR Filter provides adjacent band rejection of 50 dB.

Layout of the design can be performed in a customer's standard digital flow by incorporating Kaben's customized cells into the libraries that are used by the auto place and route software.

The DIF is ideal for WiMAX 802.16a, WLAN (Wi-Fi) 802.11a, 802.11b, 802.11g, 802.11h, and 802.11n, Bluetooth, Software Defined Radios (SDR), Multi-mode Radios, and Cable Modem products.