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4937D15 Datasheet

  • 4937D15

  • 4937D15 3x8899 Adv. Data Sheet|RF Tuner Modules

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  • 17頁

  • ETC

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M I C R O T U N E鈩?/div>
4937 DI5 RF T
UNER
M
ODULE
3
X
8899 (3
X
7702)
A
DVANCE
D
ATA
S
HEET
1 APPLICATIONS
C
ABLE
M
ODEM
A
PPLICATIONS
The 4937 DI5 Tuner Module is specifically designed for subscriber-side cable
modem applications.
2 FEATURES
Preliminary and Confidential
Preliminary
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
DOCSIS compatible
VHF, Hyperband, and UHF
Band selection and tuning controlled by I
2
C
bus
Downstream frequency range from 50 MHz to 860 MHz
Upstream frequency range from 5 MHz to 42 MHz
Single 5V power supply
3 INTRODUCTION
The receiver uses a single-conversion approach to 43.75 MHz with the reception
frequency range divided into VHF low, VHF high, and UHF. A second conversion to
5.75 MHz is available for QAM demodulators requiring a lower center frequency
(3x7702); alternately, the output frequency is 43.75 MHz (3x8899).
Figure 1
4937 DI5 RF Tuner Modules
Band selection and tuning is done via the I虜C-bus, while a separate three-wire bus
and transmit enable control the upstream amplifier.
3X 8899 Revision: 02
September 01
Page 1 of 17
3x8899_02.doc

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    4937D15 3x8899 Adv. Data Sheet|RF Tuner Modules
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