參數資料
型號: TUA6026S
廠商: SIEMENS A G
元件分類: 調諧器
英文描述: 2-BAND, VIDEO TUNER, PDSO28
封裝: PLASTIC, TSSOP-28
文件頁數: 27/30頁
文件大?。?/td> 381K
代理商: TUA6026S
TUA 6026
Semiconductor Group
6
1998-09-01
1.2
Functional Description
The TUA 6026 device combines a digitally programmable phase locked loop (PLL), with
a mixer-oscillator block including two balanced mixers and oscillators for use in TV
tuners.
The PLL block with four hard-switched chip addresses forms a digitally programmable
phase locked loop. With a 4 MHz quartz crystal, the PLL permits precise setting of the
frequency of the tuner oscillator up to 900 MHz in increments of 62.5 kHz. The tuning
process is controlled by a microprocessor via an
I
2C Bus. The device has four output
ports, two of them (P0 and P1) can also be used as TTL input ports. A flag is set when
the loop is locked. The input ports and lock flag can be read by the processor via the
I
2C Bus.
The mixer-oscillator block includes two balanced mixers (one mixer with high-impedance
input and one mixer with a balanced low-impedance input), two frequency and
amplitude-stable balanced oscillators for VHF, HYPER and UHF, a low-noise reference
voltage source and a band switch.
1.3
Application
The IC is suitable for NTSC and PAL tuners in TV- and VCR-sets or cable set-top
receivers for analog TV and Digital Video Broadcasting.
相關PDF資料
PDF描述
TUA6026-K 2-BAND, VIDEO TUNER, PDSO28
TUA6026-S 2-BAND, VIDEO TUNER, PDSO28
TUA6028XS 2-BAND, VIDEO TUNER, PDSO28
TUA6028-S 2-BAND, VIDEO TUNER, PDSO28
TUA6028-K 2-BAND, VIDEO TUNER, PDSO28
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