参数资料
型号: TUA6041-2
厂商: INFINEON TECHNOLOGIES AG
元件分类: 调谐器
英文描述: 3-BAND, VIDEO TUNER, QCC48
封装: VQFN-48
文件页数: 18/66页
文件大小: 926K
代理商: TUA6041-2
Data Sheet
25
Revision 3.1, 2006-12-19
TUA 6041-2
LIGHTNING
Functional Description
current consumption is reduced below 200
A. After power-on reset only bus interface
and XTAL-oscillator with bandgap are active and the current consumption is about
2.6 mA (typ.).
3.4.9
IF switch, Loop thru
For the alignment procedure of the tuner module two programmable switches are
integrated to bypass the bandpass, the SAW driver and the SAW filter. The first switch
called “IF switch” can switch between the mixer output signal and the bandpass output
signal. The second switch called “Loop thru” can switch between the signal after the first
stage of the IF AGC amplifier and the SAW filter output signal.
Figure 3
Functional Block Diagram of IF switch and Loop thru
Band-
pass
MIXER
IF switch
SAWDRV
MIXER
input
IF
output
SAW
Filter
IF AGC amplifier
Loop thru
IF switch control = bit 15 of sub address 03H
Loop thru control = bit 14 of sub address 03H
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