SA1630BE - Philips

SA1630BE IF quadrature transceiver

The SA1630 is a 70–400 MHz I/Q transceiver for wireless LAN. The Receive Path contains a digitally gain controlled linear IF amplifier, a pair of quadrature down conversion mixers and a pair of baseband amplifiers. The transmit path contains a pair of quadrature up conversion mixers that transposes a quadrature baseband input signal up to IF frequency. An ex.

Features

• Low supply voltage operation of 2.7V for main chip and 2.9V for charge pump.
• Digital gain control of 70 dB in steps of 2 dB.
• Rx Baseband amplifiers are capable of driving 1kW ||15pF
• Rx Baseband o/p’s clamp symmetrically, above 1Vp
  –p in order to prevent dc bias shift under overdrive conditions.
• Low current consumption: 33.5 mA in RX, 26.5 mA in TX, typical at 3V.
• Package: LQFP
  –48, PCMCIA compatible APPLICATIONS
• Flexible power up/down options.
• Optional 2.5V regulated reference voltage available during transmit.
• Input IF frequency range of 70
  –400 MHz. IFOUT TxIFOUTX
• IF .