PICO MACOM, INC.
12500 Foothill Blvd. • Lakeview Terrace, CA 91342 • (818) 897-0028 • (800) 421-6511 • FAX (818) 834-7197
D E S C R I P T I O N S
Features and Specifications
3
S
pecifications
RF
Output Frequency:
54 to 806 MHz
Output Channels:
2-69, IRC, HRC and
FCC docket 21006
offsets
Output Level:
45 dBmV minimum
Output Adjustment Range:
15 dB
Spurious Output:
60 dB below video
carrier (@ A/V carrier
ratio -15 dB)
Frequency Stability:
±
5 KHz
Output Return Loss:
18 dB
Audio/Video Ratio:
-7 dB to -25 dB
IF Output, Video:
+ 35 dBmv nominal
Differential Gain:
< 2% (10 to 90% APL)
Differential Phase:
< 2 Deg (10 to 90% APL)
Frequency Response:
±
0.5 dB 30 Hz to 4 MHz
Group Delay:
See note*
IF Output, Sound:
+ 20 dBmv nominal
Video
Frequency Response:
.5 MHz to 4.2 MHz
±
1 dB
Input Level:
0.5 V p-p min for 87.5%
modulation
Input Type:
Composite Video nega-
tive sync.
Visual C/N:
68 dB @ 4 MHz BW
Hum and Noise:
-60 dB @ 87.5% modu-
lation
AC Power:
108 to 125 VAC 60 Hz
Fuse:
0.25 Amp
Weight:
5 lbs., 5 oz.
Dimensions:
19" L x 1
3
⁄
4
" H x 5" D
Operating Temperature
:
-10
°
to 50
°
C
Audio
Input Impedance:
10K ohms unbalanced
Input Level:
0.5 Vp-p for 25KHz
deviation
Pre-Emphasis:
75 microsecond switch-
able for BTSC stereo
Flatness:
±
1.5 dB 50 Hz to 15 KHz
Composite BTSC Input Level:
500 mV to 1Volt
General
*Note: meets FCC group delay pre-distortion correction requirement for color
transmission.
D
escription
The
PICO MACOM, INC.
PM45
Modulator has
been specifically designed for adjacent channel
headend use. It provides high stability and superior
picture and sound quality and assures reliable
operation even in the most crowded systems. The
high frequency and extremely high accuracy Phase
Lock Loop oscillator allows the unit to meet the
frequency offset and stability requirements of FCC
Docket 21006, even at hyperband output channels.
Modular construction allows the unit to be
reconfigured to any output channel by qualified
service centers. Superior out-of-band carrier to noise
is achieved by output amplifier bandpass filtering in
addition to IF SAW filtering.
F
eatures
•
SAW filtered for superior vestigial side
band shaping & harmonic reduction
•
IF modulation for superior harmonic
reduction and modulation quality
•
Encoder compatibility, using an external
IF loop-thru, to accommodate pay-per-
view or scrambled signals
•
LED overmodulation indicators
•
Excellent audio and video linearity
•
Compatible with BTSC MTS Stereo audio
•
Three year warranty
•
1
3
⁄
4
" low profile rack mounting
•
Low power consumption
•
45dBmV minimum output
•
Spurious outputs down 60 dB
•
Complies with FCC Docket 21006
requirements for CATV systems
