NXP Semiconductors TDA8042M
The TDA8042M is a monolitic bipolar IC dedicated for BPSK and QPSK demodulation. It is designed to be used together with the TDA8043 as part of a complete BPSK/QPSK satellite demodulator and decoder. The bandwidth of the TDA8042M allows symbol rates up to 45 Msymbols/s.| Part No. | TDA8042M |
|---|---|
| Datasheet | TDA8042M Download |
| Manufacturer |  NXP Semiconductors |
| Description | Quadrature demodulator |
| Buy | Stock & Price |
FEATURES
● 5 V supply voltage● Internal voltage reference
● 350 to 650 MHz input frequency range
● On-chip 0° and 90° phase shifter
● Symbol rate up to 45 Msymbols/s
● High input sensitivity
● Built-in voltage stabilizer
● AGC amplifier with 21 dB control range
● AGC detector. APPLICATION
● Binary Phase-Shift Keying (BPSK) and Quadrature Phase-Shift Keying (QPSK) demodulation.
GENERAL DESCRIPTION
TDA8042M It includes two matched mixers, an IF gain controlled amplifier, a symmetrical oscillator, a 0°/90° phase shifter, two low-pass filters and two matched baseband amplifiers. The high input sensitivity makes interfacing with various sources easy. The input sensitivity can be adjusted by means of an internal AGC amplifier. The oscillator operates at half the IF frequency. The local oscillator signal driving the mixers is made by doubling the oscillator frequency by an internal frequency multiplier. The oscillator frequency can be set by the appropriate external LC tank circuit. The internal wideband phase shifter provides two oscillator signals which are 90 degrees out of phase to drive the mixers.
