AD8309 100dB Dynamic Range Detection output For FSK PSK Demodulation 500MHZ

Description

AD8309 100dB Dynamic Range Detection output For FSK PSK Demodulation 500MHZ
Description
Non-RMS Response Power Detector 500MHZ (AD8309)
First, the chip features Product Applications:
The AD8309 is a 500 MHz detector-based logarithmic amplifier based on continuous detection technology for RSSI and phase detection in cellular base stations, radar and other radio transceiver applications.
The device provides 100 dB dynamic range with ±0.4 dB accuracy in the middle 80 dB range and operating frequencies up to 500 MHz. The logarithmic output is proportional to the logarithm of the input signal and provides a 0.4 V to 2.5 V DC signal over a 100 dB input range. The device also provides a limiter output that amplifies the input signal by 100 dB and provides a stable clipped output with a maximum phase deviation of ±100 ps. This limiter output is useful for demodulating FSK and PSK modulated signals.
Chip parameters:
1、Complete multi-stage logarithmic-limiter IF amplifier
2. Dynamic range: 100 dB –78 dBm to +22 dBm (Re 50 O)
3, programmable limiter gain and output current
4, differential output to 10 mA, 2.4 V peak-to-peak
5, total gain: 100 dB, bandwidth: 500 MHz
6. Constant phase (typical delay deviation: 680 ps)
7. Power-on time: 500 ns, sleep current: <1 mA
8. The RSSI scaling does not change with temperature and supply voltage:
9, Slope: 20 mV/dB, Intercept: –95 dBm
10. RSSI Linearity: ±0.4 dB (to 200 MHz)
11. Single power supply: +2.7 V to +6.5 V,
12, current: 16 mA (typical)
13, fully differential input,
14, RIN = 1kΩ, CIN = 2.5 pF
Package Included:
1 x
AD8309 100dB Dynamic Range Detection output For FSK PSK Demodulation 500MHZ
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