i use ADL5380,but it's so easy to damage,i changed several chips ,then it can work well,

but one month later ,the output power lost more than 10dB, from -2dbm to -18dbm,

and in this situation i changed a capacitor in the RF from balun to ADL5380…

Do the adl5380 demodulator work whit RF freq at 5400MHZ and the LO freq at 5430MHz?

are the I/Q outputs valid 30 MHz outputs in this case?

tnx, Luca

ADL5380基带输出为50 ohm差分阻抗，但为什么参考电路用的是9：1的巴伦，问过支持，怎么说是什么负载是450 ohm，然后用9：1转，但是手册上的差分输出50 ohm又是什么意思，如果是50ohm，我想用个1：1的转成单端50ohm可以么。 另IQ调制时，用单端转巴伦，1：1的怎么接共模电压

I have a couple of questions regarding the ADL5380:

1. Is there any characterization available for the slew rate of the I and Q amplifier outputs

2. In the case where RFin and LO are close in frequency (seperated by 10KHz) we are noticing the outputs…

ADL5380的差分阻抗写的50ohm,手册中写的负载200ohm和450ohm跟这个有什么关系，我输出为50ohm，是不是直接通过一个1：1巴伦就可以了。参考图中用9：1巴伦转的，ADL5380基带差分阻抗为50ohm，那经过巴伦变换之后岂不是变成（50/9）ohm了，因为巴伦次级接的ADL5380基带，主级接的后面负载,次级跟主级阻抗比为9：1。

Hi,

in my adl5380 application BB I/Q max freq is 190MHz.

ADL5380 should be connected  with either a 2¨1 balun (100Ω -->50Ω)  or a 4:1 balun (200Ω-->50Ω)

A  microstrip 100Ω differential line of aproax 12cm long connects al5380 with the balun.

Balun…

I'm looking at the ADL5380 for a multi-channel receiver. Each channel would have its own ADL5380. Channel-to-channel relative phase on the ADL5380 baseband output is important.

First question: Does the ADL5380 mechanism for generating a quadrature…