Datasheet > MC44355DWR2

MC44355DWR2

更新时间： 2024-11-15 15:40:59

品牌	Logo	应用领域
摩托罗拉 - MOTOROLA		光电二极管
页数	文件大小	规格书
42页	918K
描述
SPECIALTY CONSUMER CIRCUIT, PDSO20, PLASTIC, SOIC-20

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MC44355DWR2 数据手册

MULTI–STANDARD

AND PAL/NTSC

MODULATOR ICs

MC44353 – Multi–Standard Modulator IC

MC44354 – PAL/NTSC Modulator IC

MC44355 – PAL/NTSC Modulator IC with

MC44355 – Fixed Video Modulation Index

SEMICONDUCTOR

TECHNICAL DATA

These modulator circuits are intended for use in VCRs, satellite receivers,

set–top boxes, video games, etc. An on–chip high speed I C compatible bus

receiver is included and is used to set the channel, tuned by a PLL over the

full range in the UHF bands. The modulator incorporates a sound subcarrier

oscillator, using a second PLL to derive 4.5, 5.5, 6.0 and 6.5 MHz carrier

frequencies, selectable by the bus.

For the sound, either frequency modulation with pre–emphasis or

amplitude modulation (MC44353 only) is possible. A control bit (MC44353

only) is used to select AM sound with positive RF modulation (system L). The

level of the sound carrier with respect to the vision carrier and the modulation

depth of both sound and vision may be adjusted by means of the bus. In

addition, an on–chip video test pattern generator may be switched in with a

1.0 kHz audio test signal.

DTB SUFFIX

PLASTIC PACKAGE

CASE 948E

(TSSOP–20)

• UHF Operation (471 MHz to 855 MHz)

• On–Chip Low Power Operational Amplifier for Direct Tuning Voltage

Output

• Single–Ended Output for Low Cost and Ease of Interface

• Low External Component Count

• High Speed I C Bus Compatible (Min 500 kHz)

DW SUFFIX

PLASTIC PACKAGE

CASE 751D

• Programmable Video Modulation Depth (8 Steps of 2.5%)

(SO–20L)

• Programmable Picture/Sound Carriers Ratio and Audio Sensitivity

(8 Steps of 1.0 dB)

• Programmable Sound Subcarrier Oscillator (4.5 MHz to 6.5 MHz)

• Video Test Pattern Generator with Sound Test Signal (1.0 kHz)

PIN CONNECTIONS

• V

Standby Mode (Typ 500 µA)

• Transient Output Inhibit During PLL Lock–Up at Power–On

Xtal

PHD

Op Out

SDA

CCD

Osc Gnd

Osc1

SCL

ORDERING INFORMATION

Operating

Gnd Mod

TV Out

Mod

Temperature Range

Device

MC44353DTB

MC44353DW

MC44354DTB

MC44354DW

MC44355DTB

MC44355DW

Package

TSSOP–20

SO–20L

Osc2

Osc Gnd

Snd Filt

Snd Tun

Gnd Mod

Video In

TSSOP–20

SO–20L

CCA

Audio In

= –20° to +80°C

Pre–Em 10

TSSOP–20

SO–20L

(Top View)

9–338

MOTOROLA ANALOG IC DEVICE DATA

12 3 4 5 6 7...42

中文翻译

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