1pcs VCA810 Voltage Controlled Gain Amplifier 40db Voltage Amplification Module

Description

Features:
The VCA810 controllable gain amplifier has a dual op amp onboard as a first-stage emitter with input and voltage reverse design. It can better isolate the external DA value voltage and avoid the voltage being pulled down by the front-stage direction device, and the amplification effect of the VCA810 can not be achieved. At the same time, VCA810 is a negative voltage control chip, so the inverter is more convenient for users to input positive voltage control. To a large extent, it facilitates your use and development. The layout and materials of this 810 sold in our shop have been further optimized, and a more convenient manual sliding rheostat is selected.
Power supply voltage: ±5V
Maximum gain: +40db
Size: 50*45mm
Shipping list:
1pcs VCA810 Voltage Controlled Gain Amplifier 40db Voltage Amplification Module
Module test chart display: Maximum gain +40dB test: (input signal 20mVpp)
10MHz signal, output peak value 2.3Vpp
20MHz signal, output peak 2.3Vpp
30MHz signal, output peak 2.3Vpp
40MHz signal, output peak 2.0Vpp
100KHz signal, output peak 2.26Vpp
Minimum attenuation -40dB test: (input signal 4Vpp)
1MHz signal, output peak value 38mVpp
10MHz signal, output peak 39mVpp
100KHz signal, output peak value 40mVpp
20MHz signal, output peak 37mVpp
VCA810 frequency sweep, bandwidth and flatness test: (input signal -20dBm, input and output are 50R impedance matching)