Pico Macom PCM55SAW User manual

PCM55SAW
The Pico Macom PCM55SAW is a professional grade microprocessor controlled
phase-locked loop synthesized channelized-agile audio-video modulator.The
PCM55SAW provides a full 55dBmV minimum output from sub-band channels
T7 through T13, and CATV channels 2 to 78 including channels 95 to 99 while
accommodating HRC and IRC offset frequencies (5.75-550MHz).The unit is
lab re-tunable within band via internal dip-switch channel selection and minimum
output filter retuning.This modulator is used in more heavily channel-loaded
systems and where cost effective expansion up to 550MHz is desired. Its phase-
locked loop frequency control, and superior SAW filtering enhances stability,
minimizes adjacent channel interference and assures accurate and spurious free
output.The modulator is equipped with a pre-emphasis disable switch which
enables pass-through of high-fidelity BTSC stereo signals where available.
Superior out-of-band carrier-to-noise performance is achieved through band-
pass filtering at the output amplifier.The modulator is shipped with all internal
adjustments preset. FCC Docket 21006 offsets are standard. Pico Macom
backs up this product with its industry leading 5-year limited warranty.
PCM55SAW
550MHz Channelized-Agile PLL SAW-filtered A/V Modulator
550MHz Channelized-Agile PLL SAW-filtered A/V Modulator
www.picomacom.com
Headend & Electronics
355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: [phone] A-7
Rev. 12/02
90-Channel Range 5.75-550 MHz
(CATV T7-T13, 2-78, 95-99)
Full 55dBmV output for optimum
carrier-to-noise performance
In-band carrier-to-noise ratio
>62dB ensures superior picture
quality
BTSC Stereo Compatible
pre-emphasis disable switch pro-
vides pass-through for stereo signals
Highly accurate DIP switch con-
trolled digital phase-locked loop
(PLL) design guarantees precise
frequency locking for solid drift-
free operation
SAW filtered IF for superior adja-
cent channel performance enables
drop-in channel expansion
Easy lab retuning of output filter
for reduced inventory of spares
and less down time
Front panel controls and test point
enable easy setup and monitoring
IRC and HRC offset available for
frequency settings in systems
using offset channels
Auxiliary AC outlet for convenience
Optional PAL format channels
available

PCM55SAW
Product Specifications
550MHz Channelized-Agile PLL SAW-filtered A/V Modulator
550 MHz PLL Saw-Filtered Audio/Video Modulator
PCM55SAW
OUTPUT LEVEL AUDIO LEVEL
AURAL CARRIER VIDEO LEVEL
CHANNEL
OUTPUT TEST
-30 dB
POWER
VIDEO IN 120VAC
60Hz 10W
600W MAX
AUDIO IN
RF OUT
Front View
Rear View
Channels: 90 Channels
(CATV T7-T13, 2-78, 95-99)
Frequency Range: 5.75-550 MHz
Output Level: 55 dBV min., 58 dBmV typ.
adjustable from front panel
Output Impedence: 75 Ohms
Output Return Loss: -15 dB
Audio/Video Ratio: Adjustable -7 to -22 dB
below video carrier
Frequency Stability: ±10 KHz (±5 kHz in
aeronautical band)
Spurious Output: -60 dB below video carrier
with A/V ratio @ -15 dB
C/N (In-Band): >62 dB
C/N (Out-of Band): >65 dB
Rejection: Fv - 1.5 MHz >-60 dB
Fv - 4.5 MHz >-63 dB
Fa + 1.5 MHz >-63 dB
Fa + 4.5 MHz >-63 dB
Input Level: 1.0 V p-p for 87.5% mod.
Input Level Range: 0.5 V p-p to 1.5 V p-p
Input Type: Clamped video neg. sync
Frequency Response: ±1.5 dB, DC to 4.2 MHz
Differential Gain: <5% (10 to 90% APL)
Differential Phase: >5° (10 to 90% APL)
Hum and Noise: -60 dB @ 87.5% modulation
Video Signal to Noise: -60 dB minimum (weighted)
Meets FCC group delay predistortion correction requirement for
color transmission.
Power Input: 120 VAC 60 Hz 10W
Operating Temperature: -10°C to 50°C
Dimensions: 19˝(L) x 3˝(D) x 13/4˝(H)
Weight: 3.6 lbs.
Connectors: “F” Type
Frequency Response: ±0.4 dB @ 50 Hz to 15 kHz
Harmonic Distortion: 0.5% @ 50 Hz to 15 kHz
Preemphasis: 75 microseconds
Signal to Noise Ratio: 60 dB
Audio Baseband Impedance: 600 Ohms
Input Level: 0.5V p-p for 25 KHz peak deviation
RF Video
Audio
General
PCM55SAW – Channel
Ordering Information
www.picomacom.com
A-8
Rev. 12/02 355 Parkside Drive San Fernando, CA 91340
Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: [phone]
Specifications Subject to Change © Copyright 2003 Pico Macom, Inc.