Philips SA621
The SA621 is a combined low-noise amplifier, mixer and VCO designed for high-performance low-power communication systems from 800-1000MHz. The low-noise preamplifier has a 1.7dB noise figure at 881MHz with 15dB gain and an IP3 intercept of -7dBm at the input. The gain is stabilized by on-chip compensation to vary less than ±0.2dB over -40 to +85°C temperature range.| Part No. | SA621 |
|---|---|
| Datasheet | SA621 Download |
| Manufacturer |  Philips |
| Description | 1GHz - Low voltage LNA / mixer and VCO |
| Buy | Stock & Price |
DESCRIPTION
The wide-dynamic-range mixer has a 12dB noise figure and IP3 of +4.5dBm at the input at 881MHz. The integrated VCO circuit with external resonator produces a high quality LO signal that drives the mixer and is buffered to an external PLL synthesizer IC. The nominal current drawn from a single 3V supply is 13.3mA. Additionally, the entire circuit can be powered down to further reduce the supply current to less than 20µA. PIN CONFIGURATION PD1 1 PD2 2 GND 3 LO OUT 4 GND 5 GND 6 TANK 7 GND 8 GND 9 BYPASS 10 20 MIXER OUT 19 MIXER OUT 18 GND 17 MIXER IN 16 GND 15 LNA IN 14 GND 13 LNA OUT 12 VCC 11 GNDFEATURES
● Low current consumption● Outstanding gain and noise figure
● Excellent gain stability versus temperature and supply voltage
● LNA, mixer and VCO power down capability
● Monotonic VCO frequency vs control voltage SR01429 Figure 1. Pin Configuration
APPLICATIONS
● 900MHz cellular and cordless front-end● Spread spectrum receivers
● RF data links
● UHF frequency conversion...
