产品详情
- Ideal for systems with 高 SNR requirements
- 20 dB typical Maximum Gain
- 31 dB gain control 范围
- 6 bit control
- 0.50 dB Gain 步s
- Excellent Noise Figure ~ 4.0 dB
- 5mm x 5mm 32 pin package
- 200 ohm Differential Matched Input
- 200 ohm Differential Matched Output
- No termination resistor required
- NF degrades < 2dB @ 10 dB reduced gain
- 10 MHz – 500 MHz frequency 范围
- Ultra-Linear: IP3O +47 dBm typical
- Excellent 2nd Harmonic Rejection
- Parallel / Serial Control
- External current setting resistors
- Very fast settling < 15 nsec
- Individual Power Down Modes
- Extremely low power consumption: 79 mA / Ch
The IDT F1240 IF VGA featuring FlatNoise™ technology improves system SNR, especially at lower gain settings. By keeping both IP3O & NF flat while gain is 后退ed off, the system SNR is improved significantly under 高 level interferer conditions, especially when considering alias noise in an IF sampling receiver. The fast-settling, parallel mode gain 步 of 0.50 dB coupled with the excellent differential non-linearity allow for SNR to be maximized further by targeting the minimum necessary gain in small, accurate increments. The matched output does not require a terminating resistor, thus the gain and distortion performance are preserved when driving Bandpass Anti-Alias filters.
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