Pico Macom PFAD900CS Bedienungsanleitung

PFAD900CS

The Pico Macom PFAD900CS is a frequency agile professional re-broadcast

grade, microprocessor controlled CATV demodulator. Its phase-locked-loop fre-

quency control, envelope signal detection, and superior SAW filtering minimize

adjacent channel interference and assure accurate and spurious free perform-

ance.The unit accepts any NTSC television signal in the 54-806MHz frequency

range converting it to baseband video and audio, while maintaining over 60dB

S/N ratio. IRC or HRC offsets can be activated via push-button switches on the

front panel.The unit’s PLL circuitry in conjunction with the non-volatile memory

contained in the microprocessor ensures easy and reliable channel selection and

restoration.The PFAD900CS provides three additional outputs: (1) an IF output

to monitor tuner status and use in encoder, ghost cancelling, and video override

applications; (2) a 4.5MHz sub-carrier output; and (3) a broadband multiplex

(MPX) output for high quality BTSC stereo.The PFAD900CS demodulator is

shipped with all internal adjustments preset. Pico Macom backs up this product

with its industry leading 5-year limited warranty.

PFAD900CS

806MHz Agile CATV A/V Demodulator

125-Channel Range 54-806MHz

(CATV 2-125, TV 2-69)

Re-broadcast-quality specifications for

unparalleled picture quality

Keyed AGC system provides excellent

picture stability

>60 dB signal-to-noise ratio for crisp,

sharp picture

Quadrature single-tuned audio detec-

tion guarantees superior audio quality

Separate video and audio outputs

provide maximum flexibility

Separate 4.5 MHz sub-carrier and MPX

outputs for BTSC stereo applications

Microprocessor control with push-but-

ton channel selection provides ease of

installation, configuration, and servicing

Digital display provides quick channel

identification

State-of-the-art digital phase-locked

loop (PLL) design guarantees precise

frequency locking for solid drift-free

operation

SAW filtered for precise adjacent

channel rejection

Envelope detection ensures exceptional

differential gain and phase

45.75 MHz composite IF output allows

tuner monitoring, encoder, ghost can-

celing, and video override applications

806MHz Agile CATV A/V Demodulator

www.picomacom.com

Headend & Electronics

355 Parkside Drive San Fernando, CA 91340

Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433

A-25

Rev. 08/03

PFAD900CS

Channels: 125 Channels

(CATV 2 – 125, TV 2-69)

HRC/IRC offsets

Input Level:

Single channel +40 dBmV max.

60 channels +20 dBmV max.

Image Rejection:

(@ -47 dBmV input)

VHF = 70 dB, UHF = 60 dB

(@ -17 dBmV input)

VHF = 60 dB, UHF = 50 dB

Noise Figure: VHF = 8 dB, UHF = 8 dB

Output Level: 0.5 to 1 V p-p

Impedance: 75 Ohms

Bandwidth: DC to 4.2 MHz

Frequency Response: ±1.5 dB

Differential Gain: <5% (10 to 90% APL)

Differential Phase: <5° (10 to 90% APL)

Detector Type: Envelope

Signal to Noise Ratio: >60dB minimum

Power Input: 117 VAC 60 Hz

Operating Temperature: -10° C to +50° C

Dimensions: 19˝(L) x 3˝(D) x 13/4˝(H)

Weight: 3.8 lbs.

Output Level: 800 mV min. deemphasized

Output Impedance: 600 Ohms

Frequency Response: 20 Hz to 15 kHz

Detection Type: Quadrature FM

4.5 MHz Sub-Carrier Output Level:

35 dBmV

MPX output level: 800 mV unbalanced @

600 Ohms

RF Video

Audio General

Product Specifications

806MHz Agile CATV A/V Demodulator

RF IN

VIDEO OUT IF OUT 4.5MHzOUT AUDIO OUTMPX OUT

600W MAX

120 VAC

60Hz 16W

Front View

Rear View

Ordering Information

PFAD-900CS

www.picomacom.com

A-26

Rev. 08/03 355 Parkside Drive San Fernando, CA 91340

Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433

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