参数资料
型号: AD8348ARUZ-REEL7
厂商: Analog Devices Inc
文件页数: 19/28页
文件大小: 0K
描述: IC QUADRATURE DEMOD 28-TSSOP TR
标准包装: 1,000
功能: 解调器
LO 频率: 100MHz ~ 2GHz
RF 频率: 50MHz ~ 1GHz
P1dB: -22dBm
增益: 25.5dB
噪音数据: 10.75dB
电流 - 电源: 58mA
电源电压: 2.7 V ~ 5.5 V
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 带卷 (TR)
AD8348
VCMO. This forms a high-pass response for the baseband
signal path with a lower 3 dB frequency of
The IOFS (QOFS) pin must be connected to either a bypass
capacitor (>0.1 μF) or an external voltage source to prevent the
f PASS =
1
2 π × 2650 Ω × COFS
feedback loop from oscillating.
The feedback loop will be broken at dc if an ac-coupled baseband
Alternatively, the user can externally adjust the dc offset by driving
IOFS (QOFS) with a digital-to-analog converter or other voltage
source. In this case, the baseband circuit operates all the way down
filter is placed between the mixer outputs and the baseband
amplifier inputs. If an ac-coupled filter is implemented, the user
must handle the offset compensation via some external means.
to dc ( f PASS = 0 Hz). The integrator output current is only 50 μA
and can be easily overridden with an external voltage source.
The nominal voltage level applied to IOFS (QOFS) to produce
a 0 V differential offset at the baseband outputs is 900 mV.
Rev. A | Page 19 of 28
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