參數(shù)資料
型號: TDA8722M-T
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO20
文件頁數(shù): 12/28頁
文件大?。?/td> 155K
代理商: TDA8722M-T
1998 Jun 23
2
Philips Semiconductors
Product specication
I2C-bus programmable modulator for
negative video modulation and FM sound
TDA8722
FEATURES
Video amplifier with clamp and white clip circuits
FM sound modulator
Asymmetrical and symmetrical RF outputs available
Symmetrical RF oscillator using only a few external
components
External adjusting of modulation depth and level of the
sound subcarrier
I2C-bus receiver for frequency setting and test-mode
selection
One I2C programmable output port
On-chip Phase-Locked Loop (PLL) frequency
synthesizer
On-chip power supply regulator
Bus switchable oscillator
On-chip Test Pattern Signal Generator (TPSG).
APPLICATIONS
Video recorders
Cable converters
Satellite receivers.
GENERAL DESCRIPTION
The TDA8722 is a programmable modulator which
generates an RF TV channel from a baseband video
signal and a baseband audio signal in the event of
negative video and FM sound standards (PAL B/G, I, D/K
and NTSC).
It is especially suited for satellite receivers, video
recorders and cable converters. The video carrier
frequency is set exactly to the correct channel frequency
by a PLL synthesizer which is programmed in accordance
with the I2C-bus format.
ORDERING INFORMATION
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA8722T
SO20
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
TDA8722M
SSOP20
plastic shrink small outline package; 20 leads; body width 4.4 mm
SOT266-1
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