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
Specifications
3
PFAD 900cs
Agile Audio & Video Demodulator
Features
• Microprocessor controlled phase
locked loop oscillator for precise
channel selection
• Surface acoustic wave filter (SAW) for
superior vestigial sideband response
• Keyed AGC system for excellent pict-
ure stability
• Envelope detection ensures excep-
tional differential gain and phase
• Quadrature single tuned audio detection
• 4.5 MHz audio output
• MPX composite output for stereo
application
• 45.75 MHz I.F. monitor
• Separate video and audio outputs
• Low cost
• Two year warranty*
Description
The PFAD 900cs is a high quality cable television
video/audio demodulator utilizing micro-processor
controlled tuning. The unit demodulates NTSC
channels from 54 MHz to 806 MHz. IRC and
HRC offsets can be activated by push button
switches located in the front panel. The PFAD
900cs incorporates a phase locked loop synthesized
L.O. in conjunction with a non-volatile
mircoprocessor for precise frequency selection. The
unit accepts any NTSC television signal in the 54
MHz to 806 MHz frequency range and converts it
to baseband video and audio. Two additional
outputs are provided by the PFAD 900cs; an I.F.
output to monitor the status of the tuner and also
for use with other up converters, and a composite
multiplex output is provided for stereo applications.
PICO MACOM, INC. backs the product with a
two year limited warranty*.
Specifications
RF
Bandwidth:
54 MHz to 806 MHz
Input Level:
Single channel, + 40dBmv
max. 60 channels, + 20dBmv
max.
Image rejection:
(@ -47dbm input)
VHF=70dB, UHF=60dB
(@ -17dbm input)
VHF=60dB, UHF=50dB
Noise figure:
VHF=8dB, UHF=8dB
Video
Video Output Level:
0.5 to 1 V P-P
Impedance:
75
Ω
Bandwidth:
DC to 4.2 MHz
Frequency response:
±
1.5 dB
Differential gain:
<5% max. (10 to90% APL)
Differential phase:
<5
°
max. (10 to 90% APL)
Detector type:
Envelope
General
Power Input:
117 VAC, 60 Hz
220 VAC, 60 Hz
Operating Temperature:
-10
°
C to +50
°
C
Dimensions:
19"L x 1.75"H x 3"D
Weight:
4.16 pounds (1.89 Kgs.)
Connectors:
RF In, Video Out, IF Out:
"F" type
MPX Out, Audio Out:
RCA type
Output level:
1 volt unbalanced de-empha-
sized
Output impedance:
600
Ω
Frequency response:
20 Hz to 15 KHz
Detection type:
Quadrature FM
MPX output level:
800mV unbalanced @ 600
Ω
Audio
*Warranty is one year if sold outside the U.S.A.
AGILE AUDIO VIDEO DEMODULATOR
TV/CATV
CATV SERIES
PFAD 900cs
TV
CATV/STD.
CATV/IRC
CATV/HRC
